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2016 Annual Report h Tah e 5outo Public Utility District 1275 Meadow Crest Drive-South Lake Tahoe-CA 96150-7401 Phone 530 544-6474-Fax 530 541-0614-www.5tpud.u5 March 14, 2017 Patty Kouyoumdjian California Regional Water Quality Control Board - Lahontan Region 2501 Lake Tahoe Boulevard South Lake Tahoe, CA 96150 Subject: 2016 Annual Report Dear Ms. Kouyoumdjian, Enclosed is the South Tahoe Public Utility District's annual self-monitoring report for the 2016 calendar year. The District is reporting as required by the Wastewater Reclamation Permit (Board Order R6T-2004-0010A3, WDID No. 6A095900700). This report contains our compliance record, sewer connection information, sewer flows, and graphical and tabular presentation of the data collected during 2016. Trend analyses on sample sites from pre-discharge to 2016 are included.Also included is our pretreatment program update. Please give me a call if you have any questions regarding these data. Very trLjYv o rs, Terry Powers Laboratory Director cc: Lahontan RWQCB- RB6-Lahontan(cD-waterboards.ca.gov Alpine County Board of Supervisors-ttremayne -alpinecountvca.gov Alpine County Health Department, Dr. Richard Johnson -riohnson(CD-alpinecountyca.gov Alpine County Health Department, Dennis Lampson dlampson@alpinecountyca.gov Alpine County STPUD Contract Commission—Dr. Richard Harvey rharvey123(cDgmail.com D:WnnualReports\Lahontan Cover Letter-2016 doc WATER RECLAMATION PLANT ALPINE COUNTY 2016 ANNUAL REPORT SpUTH TgHOe pUeewe r • e` 19 50 • �9 �G � R ( �C UTILITY 015j SOUTH TAHOE PUBLIC UTILITY DISTRICT 2016 ANNUAL PERFORMANCE DATA Table of Contents Wastewater Treatment Plant Pretreatment Program Heavenly Valley Creek Emergency Retention Basin, Treatment Plant & Buried Sludge monitoring Wells Harvey Place Reservoir Indian Creek Reservoir Alpine County Monitoring Soils Alpine County Monitoring Wells Diamond Valley Ranch Monitoring Wells Alpine County Potable Water Wells Alpine County Surface Waters Irrigation Ditches Trihalomethanes (THM) & MTBE Monitoring Test Method for Total Nitrogen & TKN WASTEWATER TREATMENT PLANT WASTEWATER TREATMENT The plant influent flow and loadings and the effluent quality are reported in this section. Tables and graphs are provided to show 2016 monthly results and yearly averages since 1980. There are multiple tables showing similar information. The averages computed in these tables may be different from one another due to the data averaged. Some tables compute the annual average from the monthly averages, while others compute the annual average from the entire data set. 2016 Annual Report 1. Compliance Record: No violations occurred during 2016 2. Wastewater Treatment Flow Information: Permits Item Flow # a. Annualpeak-day dry-weather influent flow (mgd) 4.91 b Annual peak-day wet-weather influent flow and associated storm data (mgd) 5.36 c. Maximum month influent flow (mgd) 4.15 d. Annual average influent flow (mgd) 3.49 1. Sewer connection permits issued but not currently used, 17,400 31 (gpd) e. 2. Capacity currently issued/reserved for public agencies 257,500 191 (gpd) , 3. Projects issued "will-serve" letters or similar commitment 0 0 f. Estimated influent flow from facilities described if 2e. 274,900 Estimated remaining available wastewater treatment capacity 33% g' considering the influent flow estimated in 2f.. See note Estimated influent flow parameters listed in 2a through 2d for the coming year • Annual peak-day dry-weather influent flow (mgd) 4.91 h. Annual peak-day wet-weather influent flow and 5.36 associated storm data (mgd) • Maximum month influent flow (mgd) 4.15 • Annual average influent flow (mgd) 3.49 Note: Estimated remaining available wastewater treatment capacity is computed by subtracting annual peak-day dry-weather influent flow(2a)plus total flow from permits issued but not used(2f)from wastewater treatment plant design capacity 7.7 mgd and dividing by 7.7 mgd. D:1Annual Reports\Secti on_C_Data-2016.doc WASTEWATER FLOWS 2016 Influent Effluent Month Total Max Min Ave Total Max Min Ave Jan 112.67 5.34 2.81 3.63 124.80 6.86 2.98 4.03 Feb 113.47 4.77 3.38 3.91 125.17 5.29 3.71 4.32 Mar 128.56 5.02 3.55 4.15 143.44 .5.90 4.00 4.63 Arp 104.30 4.04 3.14 3.48 116.84 4.71 2.94 3.89 May 105.86 4.22 3.09 3.41 115.88 4.28 3.18 3.74 June 103.69 3.93 3.19 3.46 114.64 6.12 1.32 3.82 July 119.53 4.91 3.46 3.86 128.89 5.89 0.17 4.16 Aug 105.94 4.14 2.78 3.42 116.16 4.48 3.02 3.75 Sep 91.40 4.20 2.71 3.05 99.81 4.71 1.00 3.33 Oct 89.67 3.92 2.60 2.89 100.64 5.28 2.50 3.25 Nov 86.81 3.60 2.59 2.89 95.62 4.71 0.00 3.19 Dec 117.43 5.36 2.59 3.79 128.52 5.63 2.25 4.15 Total 1,279.33 1,410.41 Maximum 128.56 5.36 4.15 143.44 6.86 4.63 Minimum 86.81 2.59 2.89 95.62 0.00 3.19 Average 106.61 3.49 117.53 3.85 Note: Total flows in MG; Max, Min and Ave flows in MGD. Maximum Flow Report 2016 Wet Weather Maximum Influent Flow: 12/10/2016 5.36 MG Dry Weather Maximum Influent Flow: 07/03/2016 4.91 MG Influent Precipitation Date Day MG Inch Type Comments Wet Weather 01/01/2016 Fri 4.66 02/20/2016 Sat 4.68 03/06/2016 Sun 4.73 0.78 Snow 02/14/2016 Sun 4.77 12/30/2016 Fri 4.82 01/29/2016 Fri 4.86 0.74 Snow 03/05/2016 Sat 5.02 0.50 Snow 12/31/2016 Sat 5.11 01/30/2016 Sat 5.34 0.69 Snow 12/10/2016 Sat 5.36 2.48 Rain Maximum Wet Weather Flow Dry Weather 07/16/2016 Sat 4.04 07/05/2016 Tue 4.09 08/06/2016 Sat 4.14 07/30/2016 Sat 4.17 07/23/2016 Sat 4.20 09/04/2016 Sun 4.20 05/29/2016 Sun 4.22 07/02/2016 Sat 4.52 07/04/2016 Mon 4.71 07/03/2016 Sun 4.91 Maximum Dry Weather Flow D:\AnnualReports\Max—Flow—Annual_Report-2016.xis PLANT LOADINGS for 2016 Change 2015 2016 % Influent Flow, MG 1,110.85 1,279.33 15.17 COD (mg/1) COD (Ibs/yr) BOD (mg/1) 265 228 -14.17 BOD (Ibs/yr) 2,456,634 2,428,226 -1.16 SS (mg/1) 215 193 -10.18 SS (Ibs/yr) 1,994,953 2,063,681 3.45 NH3-N (mg/1) 28.28 26.12 -7.63 NH3-N (Ibs/yr) 261,953 278,655 6.38 Total P (mg/1) 5.60 5.25 -6.32 Total P (Ibs/yr) 51,920 56,015 7.89 RAW INFLUENT CHARACTERISTICS for 2016 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Yearly COD Max: Min: Ave: BOD Max: 302 243 234 248 259 258 269 334 274 249 292 288 334 Min: 176 168 127 182 193 220 216 220 232 190 175 182 127 Ave: 233 202 176 215 224 242 254 252 254 217 225 237 228 SS Max: 234 248 171 203 220 230 254 291 285 250 220 214 291 Min: 171 146 115 153 154 183 184 162 220 155 118 151 115 Ave: 198 176 151 172 184 209 220 203 243 195 180 190 193 NH3-N Max: 25.4 22.4 18.8 23.1 30.2 32.0 35.9 33.7 33.4 28.6 28.5 31.6 35.9 Min: 20.3 19.0 14.8 20.6 21.1 26.3 32.3 31.1 29.6 24.9 24.5 22.8 14.8 Ave: 22.6 20.6 16.6 21.9 25.1 28.5 33.8 32.1 31.6 27.1 26.5 27.0 26.1 Total P Max: 5.30 4.42 4.58 5.22 4.78 5.78 6.95 6.45 5.94 5.78 5.94 5.14 6.95 Min: 4.90 4.34 3.54 4.62 4.54 5.14 5.82 6.07 5.62 5.78 5.06 4.71 3.54 Ave: 5.10 4.38 4.06 4.92 4.62 5.41 6.41 6.26 5.75 5.78 5.41 4.90 5.25 Note: Results expressed as mg/I RAW INFLUENT ANNUAL TRENDS <---FLOW---> Total Daily COD BOD SS NH3-N NO3-N Total-P Cl TDS Year MG MGD mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 80 1,585.3 4.30 368 170 139 22.6 0.056 8.30 29.9 246 81 1,467.4 4.00 397 161 148 22.8 0.053 8.37 27.6 245 82 1,685.1 4.60 369 157 129 20.4 0.092 7.17 28.0 230 83 1,612.9 4.42 344 153 126 18.4 0.096 6.71 28.2 231 84 1,493.0 4.08 406 161 135 21.0 0.076 7.45 29.0 231 85 1,464.8 4.01 412 177 143 21.3 0.069 7.82 30.8 245 86 1,573.4 4.32 353 148 117 19.1 0.101 6.73 29.4 237 87 1,551.2 4.25 388 165 132 21.0 1.497 6.99 31.1 252 88 1,501.4 4.10 407 197 134 23.2 0.040 7.34 35.5 257 89 1,652.3 4.52 430 174 134 20.8 0.135 6.80 38.0 243 90 1,573.6 4.31 534 212 185 21.9 0.072 7.13 34.7 268 91 1,401.1 3.83 418 182 158 21.1 0.219 7.00 39.5 260 92 1,438.3 . 3.93 428 193 162 21.2 0.165 6.93 37.3 265 93 1,587.9 4.35 420 203 149 20.1 0.069 5.50 35.3 261 94 1,464.6 4.01 434 205 172 19.9 0.065 5.76 39.2 265 95 1,694.8 4.64 406 169 144 18.9 0.268 5.13 35.5 251 96 1,787.4 4.88 381 169 139 17.4 0.202 4.65 34.5 233 97 1,766.1 4.84 389 162 144 18.2 0.144 4.67 34.9 238 98 1,719.1 4.71 404 175 157 18.0 0.226 4.67 36.1 236 99 1,774.2 4.86 397 173 154 18.6 0.410 4.63 35.8 237 00 1,774.3 4.85 400 171 152 19.2 0.447 4.95 39.4 249 01 1,586.0 4.34 440 191 174 19.5 0.786 5.40 42.1 263 02 1,659.5 4.55 406 176 151 18.4 0.451 4.84 40.6 256 03 1,552.9 4.25 426 187 156 20.2 0.266 5.32 41.6 256 04 1,563.5 4.27 478 207 196 21.9 0.210 5.28 37.8 261 05 1,602.1 4.39 434 192 164 20.4 0.132 4.82 35.8 251 06 1,682.2 4.61 405 183 156 20.4 0.043 4.97 35.6 233 07 1,471.3 4.03 463 200 170 21.6 0.169 5.24 34.6 250 08 1,454.3 3.97 489 206 165 23.4 0.072 5.47 38.6 253 09 1,416.0 3.88 492 220 176 23.8 0.028 5.44 37.7 250 10 1,424.2 3.90 478 211 178 22.2 0.130 5.19 39.7 248 11 1,526.8 4.18 395 188 168 19.8 0.350 4.28 37.9 240 12 1,333.3 3.64 200 166 23.6 0.061 4.62 38.3 246 13 1,275.0 3.49 230 194 25.1 0.053 5.14 36.5 247 14 1,191.3 3.26 244 211 25.9 0.031 5.47 38.4 254 15 1,110.9 3.04 265 215 28.1 0.027 5.65 40.7 267 16 1,279.3 3.49 227 193 26.3 0.061 5.36 40.9 252 Maximum 1,787.4 4.88 534 265 215 28.1 1.497 8.37 42.1 268 Minimum 1,110.9 3.04 344 148 117 17.4 0.027 4.28 27.6 230 Average 1,532.3 4.19 418 189 159 21.2 0.199 5.87 35.9 249 #Years 37 37 32 37 37 37 37 37 37 37 RAW INFLUENT Influent Flows Raw Influent Annual Trends Annual Trends 8 2,400 600 7 2,100 500 6 1,800 r7 5 1,500 400 2, 4 1,200 W 300 1v E Q 3 900 200 2 600 1 300 100 0 60 8182 83 8485 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 1011 1213 14 15 16 O O 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —�Daily Ave MGD —+—Yearly Total MG M COD BOO ---A SS Ammonia-Nitrogen Total Phosphorus Annual Trends Annual Trends 30 10 9 25 8 20 7 6 rn 15 a> 5 E E 4 10 3 5 2 1 0 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 0 80 81 B2 83 84 85 86 67 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 N 05 06 07 08 09 10 11 12 13 14 15 16 I RAW INFLUENT Chlorides &TDS Chemical Oxygen Demand (COD) Annual Trends Annual Trends 100 400 800 90 360 700 80 320 70 280 600 J E 60 240 J 500 VI rn 01 50 200 J v_ c 6 400 r 40 160 E U 30 1 zo 300 20 80 200 10 40 100 0 0 BO 81 82 83 Bd 85 88 87 BB 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 OS Ofi 07 OB 09 10 11 12 13 14 15 16 0 80 81 82 83 84 85 e6 e7 BB 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 OS O6 07 OB 09 10 it 12 13 14 15 16 t Chlorides 0 TDS Linear(Chlorides) Linear(TDS) Biochemical Oxygen Demand (BOD) Suspended Solids (SS) Annual Trends Annual Trends 400 300 350 250 300 2 250 00 rn 200 rn 150 E E 150 100 100 50 50 O 80 81 82 83 84 B5 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 0 80 81 82 83 84 85 86 87 88 B9 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 BIOCHEMICAL OXYGEN DEMAND UNIT PROCESS PERFORMANCE 2016 Removal Month Raw Primary Sec Final % January 233 200 37.0 9.50 96 February 202 186 24.7 7.03 97 March 176 151 43.1 10.08 94 April 215 142 47.0 9.95 95 May 224 128 42.0 9.00 96 June 242 166 31.6 9.61 96 July 254 180 45.3 7.22 97 August 252 220 72.2 5.80 98 September 254 174 39.4 3.81 99 October 217 149 38.5 5.34 98 November 225 160 30.0 5.29 98 December 237 159 38.9 6.07 97 12 Month Ave 228 168 40.8 7.39 97 % Removal 26 76 82 97 Biochemical Oxygen Demand Percent Removal 100 is 90 80 0 E m 70 0 60 50 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec —& Final Effluent Linear(Final Effluent) SUSPENDED SOLIDS UNIT PROCESS PERFORMANCE 2016 Removal Month Raw Primary Sec Final % January 198 124.7 22.2 6.83 97 February 176 119.2 11.9 3.68 98 March 151 88.9 13.8 4.05 97 April 172 77.6 17.2 4.33 97 May 184 72.6 15.2 5.61 97 June 209 97.6 12.4 3.94 98 July 220 93.8 14.0 4.64 98 August 203 86.0 12.9 4.47 98 September 243 64.9 7.8 2.37 99 October 195 54.5 8.2 1.29 99 November 180 85.7 7.3 1.79 99 December 190 97.7 11.4 3.51 98 12 Month Ave 193 88.6 12.9 3.88 98 % Removal 54 85 70 98 Suspended Solids Percent Removal 100 90 80 0 E m CC 70 0 60 50 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec --•-Final Effluent Linear(Final Effluent) FINAL EFFLUENT ANNUAL TRENDS <---FLOW---> Total Total Daily COD BOD SS NH3-N NO3-N TKN Total-P CI TDS Turbidity CIZ Coliforms Year MG MGD mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L NTU mg/L Total Fecal/E.coli pH 80 1,418.20 4.32 22.0 3.0 2.0 5.5 5.75 0.40 148 551 0.7 2.8 7.38 81 1,354.60 3.90 20.0 2.0 2.0 3.3 13.47 0.83 80 455 0.9 0.7 7.74 82 1,807.90 5.10 23.0 4.0 4.0 3.1 7.87 0.81 88 410 1.8 2.6 7.65 83 1,737.60 4.85 18.0 2.0 2.0 1.0 8.50 0.72 94 426 1.0 1.8 7.86 84 1,566.70 4.33 16.0 2.0 1.0 1.6 8.24 0.39 103 436 0.7 1.8 7.65 85 1,532.40 4.24 20.0 2.0 3.0 4.5 5.15 0.17 92 395 1.1 4.9 7.59 86 1,660.50 4.59 17.0 2.0 2.0 5.3 4.95 0.20 82 341 1.0 4.9 7.12 87 1,657.20 4.81 19.0 2.0 4.0 7.7 4.83 0.23 117 452 1.4 3.9 7.25 88 1,619.90 4.42 14.0 2.0 3.0 6.6 9.29 0.12 136 480 1.0 2.8 7.21 89 1,769.70 4.89 40.0 6.0 5.0 13.9 4.93 15.6 3.80 76 326 2.5 13.6 2.9 2.0 7.10 90 1,697.30 4.76 37.0 6.0 4.0 8.4 8.39 10.1 3.80 83 387 2.3 14.6 2.0 2.0 7.30 91 1,610.80 4.46 37.0 6.0 4.0 5.9 9.71 7.8 3.55 92 367 2.6 10.3 2.0 2.0 7.35 92 1,608.40 4.39 41.0 7.0 4.0 9.6 6.46 11.2 5.05 64 289 3.1 4.4 3.7 2.1 7.32 93 1,795.00 4.94 51.0 8.0 4.0 13.8 7.03 15.6 3.79 60 266 3.1 5.3 2.1 2.0 7.32 94 1,638.20 4.50 43.1 7.6 3.8 20.6 1.30 22.1 3.21 59 253 2.9 4.1 3.3 2.0 7.41 95 1,925.70 5.27 39.4 7.4 5.0 20.5 0.03 21.1 2.69 51 236 2.6 4.4 2.2 2.0 7.46 96 1,965.80 5.37 37.3 7.0 4.4 18.6 0.13 20.6 2.50 44 221 2.5 4.0 2.1 2.0 7.64 97 1,872.30 5.12 37.0 6.9 3.7 19.3 0.25 20.7 2.59 50 226 2.8 6.1 2.1 2.0 7.62 98 1,693.40 4.64 35.6 6.9 4.0 18.6 0.28 21.1 2.56 48 227 2.6 4.6 2.1 2.0 7.53 99 1,742.20 4.78 34.8 6.5 3.1 19.3 0.16 19.8 2.65 49 220 2.4 4.2 2.8 2.0 7.49 00 1,685.90 4.74 42.4 7.9 3.9 20.7 0.04 20.9 2.55 53 226 2.8 4.5 2.1 2.0 7.49 01 1,565.40 4.29 46.9 8.7 5.1 19.1 0.54 21.6 2.87 58 241 4.5 5.2 2.0 2.0 7.43 02 1,581.80 4.33 41.2 6.8 3.0 19.8 0.64 21.6 2.79 55 231 3.7 5.5 2.0 2.0 7.44 03 1,537.50 4.21 45.9 7.8 3.3 22.2 0.10 24.2 2.83 57 240 4.1 5.7 2.1 2.0 7.54 04 1,483.30 4.05 47.4 7.9 3.8 23.1 0.04 26.3 3.19 56 242 4.8 6.0 2.1 2.0 7.47 05 1,496.68 4.21 44.9 7.4 3.5 21.1 0.74 21.7 3.06 51 250 4.3 6.2 2.0 2.0 7.69 06 1,588.08 4.35 47.8 6.6 2.7 21.2 0.07 21.7 3.09 48 242 4.4 6.0 2.0 2.0 7.69 07 1,380.03 3.78 47.5 7.5 3.3 22.2 0.44 24.5 3.38 50 255 4.4 6.5 2.0 2.0 7.70 08 1,343.14 3.67 40.5 6.0 2.9 20.2 1.60 21.5 3.61 54 255 4.1 5.3 2.0 2.0 7.64 09 1,455.20 3.98 45.7 8.6 3.1 21.9 1.02 22.8 3.66 50 250 4.5 6.1 2.2 1.9 7.61 10 1,500.48 4.11 44.6 5.5 3.0 22.3 0.88 25.0 3.38 50 246 3.5 6.3 1.9 1.8 7.70 11 1,616.50 4.43 40.6 6.7 3.7 21.5 0.47 30.3 2.75 46 238 3.3 5.5 1.9 1.8 7.71 12 1,445.96 3.95 9.0 2.7 22.4 0.79 26.1 2.88 49 242 3.4 5.4 6.4 6.2 7.71 13 1,409.31 3.86 6.5 2.7 24.4 0.53 27.8 3.13 49 250 3.6 6.4 2.0 1.8 7.70 14 1,329.45 3.65 7.9 2.2 25.8 0.57 29.1 3.32 52 253 3.4 5.6 2.1 1.8 7.65 15 1,247.60 3.42 6.3 2.7 25.2 1.34 28.5 3.63 52 263 4.0 6.1 254.2 48.4 7.47 16 1,410.41 3.85 7.4 3.9 23.9 0.92 28.2 3.34 58 269 3.9 9.3 2.1 1.5 7.79 Permit Max 300 45 60 20 240' Permit Ave 60 30 30 10 232 Maximum 1,965.80 5.37 51.0 9.0 5.1 25.8 13.47 30.3 5.05 148 551 4.8 14.6 254.2 48.4 7.86 Minimum 1,247.60 3.42 14.0 2.0 1.0 1.0 0.03 7.8 0.12 44 220 0.7 0.7 1.9 1.5 7.10 Average 1,587.85 4.39 35.6 6.0 3.3 15.8 3.17 21.7 2.53 68 302 2.9 5.5 11.4 3.8 7.52 #Years 37 37 32 37 37 37 37 28 37 37 37 37 37 28 28 37 FINAL EFFLUENT Effluent Flows Chemical Oxygen Demand Annual Trends Annual Trends 10 3,000 60 9 2,700 8 2,400 50 7 2,100 G 6 rN 1,800 40 M 5 1,500 a 4 1,200 30 3 900 2 600 20 1 300 10 0 0 808182B3B98586878889909192939495969798990001020304050607080910111213141516 0 BO 81 82 83 84 85 86 87 BB 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 OS 06 07 OB 09 10 11 12 13 14 15 16 --�—Daily Ave MGD +Yearly Total MG Biochemical Oxygen Demand Suspended Solids Annual Trends Annual Trends 30.0 30.0 25.0 25.0 20.0 20.0 rn 15.0 6 15.0 E E 10.0 10.0 5.0 5.0 0.0 0.0 80 81 8283 84 85 86 87 8889 90 91 92 93 94 95 96 97 9899 00 0102 03 04 05 0607 08 09 10 11 1213141516 80 8182 83 84 85 8687 88 89 90 9192 93 94 95 96 97 98 99 00 0102 0304 05 06 07 08 09 10 11 1213141516 FINAL EFFLUENT Ammonia-Nitrogen Total Phosphorus Annual Trends Annual Trends 30 10 9 25 $ 20 7 6 J J m 15 rn 5 E E 4 10 3 5 2 1 0 0 80818283 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 0809 1011 12 13 1415 16 80 8182 83 84 85 86 87 88 89 90 9192 93 94 95 96 97 98 99 00 0102 03 04 05 06 07 08 09 10 11 1213141516 Nitate-Nitrogen Chlorides &TDS Annual Trends Annual Trends 20 350 700 300 600 15 250 500 J A E 200 400 0 u E J :2 ai 10 ° 150 300 E :E 100 200 5 50 100 0 0 80 8182 83 84 85 86 87 88 89 90 9192 93 94 95 96 97 98 99 00 0102 03 04 05 06 07 08 09 10 1112 13 14 15 16 0 80 8182 83 84 85 86 87 88 89 90 9192 93 94 95 96 97 98 99 00 0102 03 04 05 06 07 08 09 10 11 12 13 14 15 16 t Chlorides t TDS FINAL EFFLUENT Turbidity Total Chlorine Annual Trends Annual Trends 20 20 15 15 J 10 rn 10 z E 5 5 0 0 80 8182 83 84 85 86 87 88 89 90 9192 93 94 95 96 97 98 99 00 0102 03 04 05 06 07 08 09 10 1112 13 14 15 16 80 8182 83 84 85 86 87 88 89 90 9192 93 94 95 96 97 98 99 00 0102 03 04 05 06 07 08 09 10 1112 13 14 15 16 pH Annual Trends 11 10 9 8 x a 7 6 5 4 80 8182 83 84 85 86 87 88 89 90 9192 93 94 95 96 97 98 99 00 0102 03 04 05 06 07 08 09 10 1112 13 14 15 16 Annual Metals Report Raw Influent Ca Mg K Na AI As Ba Be Ag Cd Cr Cu 01/21/2010 17.1 4.11 10.6 41.7 450 2.01 <2 <10 <2 2 28.2 04/08/2010 19 4.3 9.7 39 500 1.8 34 <1 <0.5 <0.5 2.5 30 07/26/2010 21 4.3 12 43 510 2.7 24 <1 <0.5 <0.5 1.6 43 10/11/2010 22 4.3 11 42 810 2.7 30 <1 <0.5 <0.5 1.8 80 11/22/2010 19 3.9 11 38 470 2 26 <2 <2 <2 3 40 04/06/2011 19.8 4.24 8.29 34.1 310 <2 43 <2 <10 <2 <2 21.7 07/07/2011 22.7 4.66 11.2 41.5 633 2.41 39.1 <1 0.744 <0.5 1.53 65 11/13/2012 21 4.3 11 36 310 2 31 <2 <2 <2 2 34 11/25/2013 20 4.1 12 40 300 3 23 <2 <2 <2 2 31 11/11/2014 18 4.0 12 42 300 3 40 <2 <2 <2 2 37 11/10/2015 19 4.6 12 43 260 2 30 <2 <2 <2 <2 35 11/01/2016 19 4 10 37 300 <4 30 <4 <4 <4 <4 29 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn 01/21/2010 540 <0.2 43 14 3 <2 <10 <2 <1 <2 100 04/08/2010 700 <0.2 49 11 <5 1.2 <5 <1 <1 5.3 97 07/26/2010 800 <0.2 37 13 <5 1.2 <5 <1 <1 3.3 110 10/11/2010 1000 <0.2 44 16 <5 1.6 <5 <1 <1 3.3 130 11/22/2010 680 0.5 48 22 3 <2 <10 <2 <1 2 110 04/06/2011 716 <0.2 37.9 8 <2 <2.5 <10 <2 <1 <2 82.7 07/07/2011 1270 <0.2 57 13.6 <5 1.97 <5 <1 <1 4.04 150 11/13/2012 760 <0.2 50 11 3 <2 <10 <2 <1 3 120 11/25/2013 600 <0.1 42 12 2 <2 <10 <2 <4 2 110 11/11/2014 630 <0.1 45 17 3 <2 <10 <2 <1 3 140 11/10/2015 670 0.2 25 12 <2 <2 <10 <2 1 <2 110 11/01/2016 800 <0.1 58 12 <4 4 <20 <4 <2 <4 170 Annual Metals Report Final Effluent Ca Mg K Na AI As Ba Be Ag Cd Cr Cu 01/20/2010 160 01/21/2010 15.6 3.94 10.8 52.8 80 2.15 <2 21.6 <2 <2 <20 04/08/2010 16 3.8 9.3 44 <20 1.2 8.7 <1 <0.5 <0.5 <1 7.7 07/26/2010 21 4.7 13 64 180 2 8.6 <1 <0.5 <0.5 <1 11 10/11/2010 19 4.2 12 53 <20 1.9 8.2 <1 <0.5 <0.5 <1 14 11/22/2010 17 3.7 11 50 <50 <2 8 <2 <2 <2 <2 9 04/06/2011 16.7 3.78 7.88 40.3 <50 2.64 25 <2 <10 <2 <2 <20 07/07/2011 19 4.38 11.7 47.8 <20 1.09 9.97 <1 <0.5 <0.5 <1 6.7 11/09/2011 17 3.7 10 39 <50 <2 12 <2 <2 <2 <2 32 11/13/2012 19 4.1 11 47 <50 <2 11 <2 <2 <2 <2 10 11/25/2013 18 4 12 52 <100 2 5 <2 <2 <2 <2 13 11/11/2014 17 3.7 12 51 <50 2 <10 <2 <2 <2 <2 14 11/10/2015 18 4.3 13 53 <50 2 10 <2 <2 <2 <2 8 06/13/2016 18.6 06/14/2016 18.3 11/01/2016 16 3 10 45 <200 <4 <20 <4 <4 <4 <4 8 Fe Hg Mn Mo NI Pb Se Sb TI V Zn 01/21/2010 90 <0.2 28.2 12 2 <2 <10 <2 <1 <2 18.6 04/08/2010 61 <0.2 33 11 <5 <0.5 <5 <1 <1 4.9 29 07/26/2010 190 <0.2 31 13 <5 <0.5 <5 <1 <1 <3 <20 10/11/2010 94 <0.2 29 11 <5 <0.5 <5 <1 <1 <3 23 11/22/2010 100 <0.2 32 24 <2 <2 <10 <2 <1 <2 30 04/06/2011 59.4 <0.2 23.7 7 <2 <2.5 <10 <2 <1 <2 22.1 07/07/2011 88.9 <0.2 70.2 9.31 <5 <0.5 <5 <1 <1 <3 20.4 11/09/2011 120 <0.2 43 11 <2 <2 <10 <2 2 <2 110 11/13/2012 110 <0.2 33 10 <2 <2 <10 <2 <1 <2 40 11/25/2013 100 <0.1 29 10 <2 <2 <10 <2 <4 <2 50 11/11/2014 130 <0.1 30 14 <2 <2 <10 <2 <1 <2 30 11/10/2015 140 <0.1 18 10 <2 <2 <10 <2 <1 <2 30 11/01/2016 <200 <0.1 <40 10 <4 <4 <20 <4 <2 <4 50 South Tahoe PUD Biosolids Cake Metals Results reported as dry weight Moisture As Be Cd Cr Cu Pb Hg Mo Ni Se Ag Zn Site Date IN % mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg Cake 02/07/12 20120207-16 28.0% 2 < 1 < 1 7 114 4 0.21 6 4 < 7 < 1 286 Cake 05/15/12 20120516-06 30.0% 3 < 1 < 1 8 177 6 0.33 7 4 < 7 2 327 Cake 08/21/12 20120821-20 28.0% 2 < 1 < 1 6 193 5 0.61 7 5 < 7 < 1 354 Cake 11/13/12 20121114-08 30.0% 3 < 1 < 1 9 180 6 0.60 7 5 < 7 1 320 Cake 02/04/13 20130205-06 31.0% 3 < 1 < 1 8 126 6 0.52 5 5 < 6 < 1 290 Cake 05/13/13 20130514-07 30.0% 3 < 1 < 1 12 140 6 0.33 6 6 < 7 < 2 400 Cake 08/05/13 AG36844 27.0% 3 < 1 < 1 9 219 5 0.26 11 5 < 7 < 1 481 Cake 11/25/13 AG38599 31.0% 3 < 1 < 1 8 119 29 0.31 5 5 < 6 < 1 355 Cake 02/03/14 AG39474 29.0% 2 < 1 < 1 6 114 4 0.55 7 4 < 7 < 1 317 Cake 05/12/14 AG40792 27.0% 2 < 1 < 1 7 122 4 0.41 5 5 < 7 < 1 315 Cake 08/13/14 AG42401 28.0% 3 < 1 1 7 154 8 0.29 9 4 < 7 1 429 Cake 11/11/14 AG43808 28.0% 3 < 1 1 7 125 4 0.29 7 5 < 7 < 1 346 Cake 02/23/15 AG45177 46.0% 2 < 1 < 1 5 117 3 0.33 6 4 < 5 < 1 326 Cake 05/19/15 AG46276 36.0% 4 < 1 < 1 7 156 5 0.56 7 4 < 6 < 1 431 Cake 08/03/15 AG47322 45.0% 2 < 1 < 1 4 127 4 0.24 6 3 < 7 < 1 400 Cake 11/10/15 AG48725 28.0% 3 < 1 < 1 3 114 4 0.29 6 4 < 5 < 1 329 Cake 02/02/16 AG49699 28.0% 4 < 1 < 1 7 129 4 0.21 6 5 < 5 1 318 Cake 05/03/16 AG50811 33.0% 3 < 1 < 1 7 88 4 0.18 5 4 < 6 < 1 276 Cake 08/08/16 AG52307 28.0% 3 < 1 < 1 6 125 4 0.18 6 4 < 5 < 1 464 Cake 11/01/16 AG53555 26.0% 4 < 1 < 1 8 123 4 < 0.03 8 4 < 6 < 1 385 Maximum 46.0% 5 4 4 19 307 29 2.50 19 19 9 19 893 Minimum 20.0% 2 1 1 1 88 3 0.03 3 3 2 1 276 Average 28.2% 3 1 1 7 178 8 0.55 8 5 6 3 399 #Tests 52 52 52 52 52 52 52 52 52 52 52 52 52 Percent As Be Cd Cr Cu Pb Hg Mo Ni Se Ag Zn >0 >0 >0 >0 >0 >0 >0 >0 >0 >0 >0 >0 >0 r South Tahoe PUD Biosolids Cake Metals Results reported as wet weight Solids As Be Cd C Cu Pb Hg Mo Ni Se Ag Zn Site Date ID# % mg/Kg mg/Kg m /K /K mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg Cake 02/07/12 20120207-16 28.0% 0.6 < 0.3 < 0.3 2.0 32 1.1 0.06 1.7 1.2 < 2.0 < 0.3 80 Cake 05/15/12 20120516-06 30.0% 0.8 < 0.3 < 0.3 2.3 53 1.7 0.10 2.0 1.3 < 2.0 0.6 98 Cake 08/21/12 20120821-20 28.0% 0.6 < 0.3 < 0.3 1.8 54 1.3 0.17 1.9 1.3 < 2.0 < 0.3 99 Cake 11/13/12 20121114-08 30.0% 0.9 < 0.3 < 0.3 2.8 54 1.7 0.18 2.1 1.6 < 2.0 0.4 96 Cake 02/04/13 20130205-06 31.0% 0.8 < 0.3 < 0.3 2.4 39 1.9 0.16 1.6 1.7 < 2.0 < 0.3 90 Cake 05/13/13 20130514-07 30.0% 1.0 < 0.3 < 0.3 3.7 42 1.8 0.10 1.8 1.7 < 2.0 < 0.7 120 Cake 08/05/13 AG36844 27.0% 0.9 < 0.3 < 0.3 2.3 59 1.4 0.07 2.9 1.3 < 2.0 < 0.3 130 Cake 11/25/13 AG38599 31.0% 0.8 < 0.3 < 0.3 2.4 37 8.9 0.10 1.5 1.5 < 2.0 < 0.3 110 Cake 02/03/14 AG39474 29.0% 0.7 < 0.3 < 0.3 1.8 33 1.1 0.16 1.9 1.3 < 2.0 < 0.3 92 Cake 05/12/14 AG40792 27.0% 0.6 < 0.3 < 0.3 1.8 33 1.0 0.11 1.3 1.4 < 2.0 < 0.3 85 Cake 08/13/14 AG42401 28.0% 0.9 < 0.3 0.3 1.9 43 2.1 0.08 2.5 1.2 < 2.0 0.4 120 Cake 11/11/14 AG43808 28.0% 0.9 < 0.3 0.4 1.9 35 1.2 0.08 2.0 1.3 < 2.0 < 0.3 97 Cake 02/23/15 AG45177 46.0% 1.0 < 0.5 < 0.5 2.5 54 1.5 0.15 2.6 1.7 < 2.5 < 0.5 150 Cake 05/19/15 AG46276 36.0% 1.4 < 0.4 < 0.4 2.4 56 1.9 0.20 2.4 1.6 < 2.0 < 0.4 155 Cake 08/03/15 AG47322 45.0% 1.1 < 0.5 < 0.5 1.7 57 1.7 0.11 2.6 1.4 < 3.0 < 0.5 180 Cake 11/10/15 AG48725 28.0% 0.9 < 0.3 < 0.3 0.9 32 1.0 0.08 1.6 1.0 < 1.5 < 0.3 92 Cake 02/02/16 AG49699 28.0% 1.0 < 0.3 < 0.3 2.0 36 1.0 0.06 1.8 1.3 < 1.5 0.3 89 Cake 05/03/16 AG50811 33.0% 1.0 < 0.3 < 0.3 2.3 29 1.3 0.06 1.6 1.3 < 2.0 < 0.3 91 Cake 08/08/16 AG52307 28.0% 0.9 < 0.3 < 0.3 1.6 35 1.1 0.05 1.8 1.0 < 1.4 < 0.3 130 Cake 11/01/16 AG53555 26.0% 1.0 < 0.3 < 0.3 2.0 32 1.0 < 0.008 2.0 1.0 < 1.5 < 0.3 100 Maximum 46.0% 1.4 1.0 1.0 5.0 73 8.9 0.50 5.6 5.0 3.0 3.9 250 Minimum 20.0% 0.4 0.2 0.2 0.2 29 1.0 0.01 0.6 0.9 0.7 0.3 65 Average 28.2% 0.9 0.3 0.3 2.1 49 2.1 0.15 2.2 1.5 1.7 0.7 112 #Tests 52 52 52 52 52 52 52 52 52 52 52 52 52 SOUTH TAHOE PUBLIC UTILITY DISTRICT WASTEWATER TREATMENT PLANT COMPLIANCE RECORD Chemical Tests Violations Compliance Year # # % Comments 1980 2,196 40 98.2 1981 1,946 27 98.6 1982 1,951 72 96.3 1983 1,983 17 99.1 1984 2,480 61 97.5 1985 2,811 9 99.7 1986 3,146 69 97.8 1987 3,018 42 98.6 1988 3,323 9 99.7 1989 2,432 14 99.4 1990 2,098 0 100.0 1991 2,068 1 99.95 pH 1992 2,168 0 100.0 1993 2,163 2 99.91 COD, Set Solids 1994 2,152 0 100.0 1995 2,047 1 99.95 Settleable Solids 5/6/95=0.3 1996 2,064 0 '100.0 1997 2,138 0 100.0 1998 2,149 0 100.0 1999 2,201 0 100.0 2000 2,110 0 100.0 2001 2,153 0 100.0 2002 2,137 0 100.0 2003 2,159 0 100.0 2004 2,078 0 100.0 2005 2,069 0 100.0 2006 2,191 0 100.0 2007 2,172 0 100.0 2008 2,159 0 100.0 2009 2,160 0 100.0 2010 2,161 0 100.0 2011 2,093 0 100.0 Stopped COD tests 06/2011 2012 2,063 0 100.0 2013 2,050 0 100.0 2014 2,054 0 100.0 2015 2,052 0 100.0 2016 2,042 0 100.0 Total Coliform by Quanti-Tray Results do not inlucde flow measurements Discharge Violations 0 0 O 00 O U) o c 0 W cc 0 :m O d- O N O N N N N N N N N N N N N N N N N N CO (O (D (O (O (O (O O (O CO CO (O (D O (D (O (D (D O O O O O O O O O W m 00 ao Oo O w Co ao ao C0 00 (D (D (O CO O CD (0 O to (0 O O O O CD O CD O O O O N W A Cn 0) V 00 (O 0 N 03 A Cn O) V 00 CD O N W A Cn O V 00 O O — N W A Cn W PRETREATMENT PROGRAM UPDATE PRETREATMENT ANNUAL REPORT COVER SHEET NPDES Permit Holder of Sewer Authority Name: South Tahoe Public Utility District Report Date: February 21, 2017 Period Covered by this Report: January 1, 2016 to December 31, 2016 Name of Wastewater Treatment Plant NPDES Permit Number South Tahoe Public Utility District Board Order No: R6T-2004-0010 WDIS No. 6A095900700 Person to contact concerning information contained in this report: Name: Jeff Lee Title: Plant Operations Manager Mailing Address 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Telephone No: (530) 544-6474 I have personally examined and am familiar with the information submitted in this document and attachments. Based upon my inquiry of those individuals immediately responsible for obtaining the information reported herein, I believe that the submitted information is true, accurate, and complete. Date i nature of Official Plant Operations Manager Title ANNUAL PRETREATMENT REPORT 2016 Section 1 —Results of Wastewater Treatment Plant Sampling and Analysis The wastewater treatment pant influent, effluent and sludge were sampled November 1, 2016 for pollutants EPA has identified under Section 307(a) of the Clean Water Acton. The results are attached. Section 2—Upset,Interference, and Pass-Through Incidents No upset, interference, or pass-through events occurred during the period. Section 3—Baseline Monitoring Reports There were no industrial/commercial users notified regarding baseline monitoring requirements this period. Section 4—Updated List of Dischargers The list of industrial/commercial dischargers has been updated and are shown in table 4-A. This table indicates businesses added or deleted, and corresponding comments. Five (5) establishments are deleted because they were found to be no longer in business. Field verification and plan reviews have identified eight (8) new businesses, which are included on the table. Section 5—Annual Industrial User Site Inspection Summary There were approximately 466 on-site inspections conducted during 2016. These inspections were primarily conducted at discharger, which have grease traps/interceptors and or sand/oil traps. However, this figure is considered conservative because many plan applications and reviews along with other functions assigned to District staff are done routinely. Section 6—Compliance and Enforcement Summary Inspections during the period covered in this pretreatment update resulted in the issuance 31 correction notices. Primarily, correction notices were issued for violations regarding grease trap/interceptor routine cleaning or other necessary repair work. Each correction notice issued was followed up by a re-inspection to ensure that the violation was corrected. All violations resulted in appropriate corrective action to remedy the violation. Section 7—Pretreatment Program Changes No changes to the program occurred during this report period. Section 8—Annual Pretreatment Budget Summary The cost of operating the pretreatment program for the period covered in this report was approximately $15,000.00. The funding comes from the general operating fund. Due to the fact that there are no categorical or significant non-categorical industrial users, funds cannot be generated from user fees. Figures are based on Lab costs and two District Inspectors conducting on-site inspections of known users. No new equipment was purchased for the pretreatment program. Section 9—Sludge Disposal Changes No changes to the sludge disposal methods occurred this period. INDUSTRIAL USER LIST UPDATE 2016 Table 4-A GREASE TRAP/INTERCEPTOR&SAND/OIL INTERCEPTORS NEW NAME . ADDRESS,,,,, COMMENTS California Hockey Academy 2478 Old Meyers Grade Rd. Moonhouse Brewhouse 2040 Dunlap The Crossin s 2042 Lake Tahoe Blvd. 2-1500 gal. interceptors Smart&Final 2061 Lake Tahoe blvd. Hotel Becket 4011 Lake Tahoe Blvd, Ace High Saloon 4101 Lake Tahoe Blvd. Dough Custom Pizza 4101 Lake Tahoe Blvd. "No Name" 3115 Harrison NAME CHANGED ;•' NEW NAME OLD,NAME. The Lakehouse 1181 Emerald Bay Rd. Cuisine of India 2297 Lake Tahoe blvd. Revive 3135 Harrison Ave. Boathouse 3411 Lake Tahoe Blvd. CLOSED NAME' ADDRESS, COMMENTS New York Pizza 1030 Al Tahoe Blvd. Sno Frozen Yogurt 4101 Lake Tahoe Blvd. Mazatlan Grill 3051 Lake Tahoe Blvd. Rude Brothers Bagels 3115 Harrison Ave. Hot Gossip 3449 HWY 50 ROUTE INFO How many traps/interceptors on your route? 252 How many total inspections were done? 466 How many correction notices were written? 31 SOUTH TAHOE PUBLIC UTILITY DISTRICT MEMORANDUM From The Lab Date: January 4, 2017 To: Jeff Lee, Manager of Wastewater Operations Cuz Cullen, Inspection Supervisor From: Terry Powers, Laboratory Director Topic: EPA Priority Pollutants Samples were obtained from the Raw Influent, Final Effluent and Centrifuge Cake on November 1, 2016 for metals and organic chemicals. Raw Influent and Final Effluent were 24-hour composites, except the Raw and Final VOC's. The Raw and Final VOC's were grab samples obtained during high flow conditions. The Centrifuge Cake sample was an &' hour composite sample The samples were analyzed forthe Environmental Protection Agency's Priority Pollutant list to determine plant upset or pass-though. 1. Metals The Raw Influent and Final Effluent had all total metal results below the drinking water Primary Maximum Contaminant Levels(MCL)and the Soluble Threshold Limit Concentrations (STLC). The Centrifuge Cake (whole sample) had all metals below the Total Threshold Limit Concentrations (TTLC). Copper and Selenium were above the STLC but below 10 x STLC. The State allows results from the total metals tests to be compared with (10 x STLC) to determine whether there is risk of the leachate from the solid material being hazardous. If the total metals results are < (10 x STLC), the leachate is considered safe. If the total metals results are > (10 x STLC), a WET extraction of the solid material is performed and compared against the STLC. January 4, 2017 Page 2 Metal Concentrations Sample date: November 1, 2016 Detection Drinking Raw Final Limit for Water Compound Units Influent Effluent Reporting MCL Aluminum /L 300 ND 200 1,000 Antimony /L ND ND 4 6 Arsenic /L ND ND 4 10 Barium /L 30 ND 20 1,000 Beryllium /L ND ND 4 4 Cadmium /L ND ND 4 5 Calcium m /L 19 16 2 Chromium m /L ND ND 4 50 Cobalt /L ND ND 4 Copper /L 29 8 4 1,000 Iron /L 800 ND 200 300 Lead /L 4 ND 2 15 Magnesium m /L 4 3 2 Manganese /L 58 40 4 50 Mercury /L ND ND 0.1 2 Molybdenum /L 12 10 4 Nickel /L ND ND 4 100 Potassium m /L 10 10. 2 Selenium /L ND ND 20 50 Silver /L ND ND 4 100 Sodium m /L 37 45 2 Thallium /L ND ND 2 2 Vanadium /L ND ND 4 Zinc /L 170 50 40 5,000 Notes:The sample for metals is a 24-hour flow-proportioned composite. DALahontan\Priority Pollutants\Organics 2016.doc January 4, 2017 Page 3 Centrifuge Cake Metals Sample Date: November 1, 2016 Centrifuge Cake Date: 11/1/2016 ID: AG53555 Wet Weight STLC Result 1OxSTLC TTLC mg/Kg mg/Kg mg/Kg mg/Kg > STLC 1OxSTLC > TTLC Antimony 15 < 0.3 150 500 no no no Arsenic 5 1.0 50 500 no no no Barium 100 19 1,000 10,000 no no no Beryllium 0.75 < 0.3 7.5 75 no no no Cadmium 1 < 0.3 10 100 no no no Chromium 5 2 50 2,500 no no no Cobalt 80 < 0.3 800 8,000 no no no Copper 25 32 250 2,500 YES no no Lead 5 1.0 50 1,000 no no no Mercury 0.2 < 8 2 20 YES YES no Molybdenum 350 2.0 3,500 3,500 no no no Nickel 20 1.0 200 2,000 no no no Selenium 1 < 1.5 10 100 YES no no Silver 5 < 0.3 50 500 no no no Thallium 7 < 0.3 70 700 no no no Vanadium 24 2.0 240 2,400 no no no Zinc 250 100 2,500 5,000 no no no DALahontan\Priority Pollutants\Organics 2016.doc January 4, 2017 Page 4 2. Organic Analyses Volatile Organic Chemicals (VOCs), Semi volatile Organic Compounds, Chlorinated Pesticides and Chlorinated Herbicides were tested in the Raw Influent, Final Effluent and Centrifuge Cake. The detected compounds are tabulated below. Organic Compounds Test Results Detections November 1, 2016 Raw Final Centrifuge Influent Effluent Cake Compound /L /L /K Acetone 60 70,000 Benzoic Acid 149 Ben z lalcohol 22.8 bis_2-Eth Ihex I hthalate 2-Butanone MEK 32,900 Chloroform 3 and 4-Meth I henol 37.1 12.5 Phenol 22.4 9.4 Toluene 3.4 236 DALahontan\Priority Pollutants\Organics 2016.doc SOUTH TAHOE PUBLIC UTILITY, DISTRICT CHAIN OF'CUSTODY South Tahoe Public Utility District . L Sent s }Se to s; - �'Y3 pis r? v i3 �•;�:„<,- Turnaround me 1275 Meadow Crest Drive Time _ South Lake i ahoe CA 96150 " ' '"m" Y v ; ; - Standard Phone:(530)-545-6231 •..�; 4<,.:,;�; �Alef: Ll FAX: 530-54i 4296 sr�*n.o: °i - 24 r _ s_ .:�.w -`-:: oy'-:4''T�--:-.".�-gym.,. • "v ,��[y_. y'__ �'��::a-:�.w_ a�.':._'S:... - v 'n N� .'j'HcblR+�:A;m__ _ _ _.ti9`1: p `" 5.:: fi:� kic-�+3•>'�`-1.-:. _ N - � _ : o Oilier �::,..:X+.CC" .y,.: ^' ..:�,;•:.Y-=`�wt..0.-i.}..-, :-Y_.- Y:f:v: .%::7��"F:n`7ix.'-.•:v+ ':::7'.^:^:�;::i''.°:::irc`.':$`."::-f':-:.�� '0"-^.3?Y:o,:�c. � p� ¢ .: �. tv_MY-:S;,L; ;.,•. Ral y:>3�,.`-...-9t'4•'.�.:.'•{i;'':'_•r';c;" -.�?;�"'„--w ,'S; .r,�_>.-°,�5'Sk'%5--"'•�"'x-�.- �n _ ..Y .- yt A-W-M JL[ dmb tv th o Report RelingWshe vb� (J Received by: ❑ Report MTBEto Q.5 ltg/L Note any detection of NffBE?Q_2 µg/L / ❑ Analyze Travel and Feld Blanks only if VOCs detected in samples- Signature Signature ❑ Use Calif State Write-On form to report results of Potable Water Wells Print iT '� sf V1- Print Company South Tahoe Public Util District Company Please Return all STPUD ice Chests & Blue lee. Date: Time � Date: rime .- -'-----• Relinquishe . ..... -.- :: .. �:. deceived Received intact Signature is Signalur Received cold Print Print Cpstody seals Company Company Date: T me Date: //- Tr" Granect container _� V,abhPanrls\Chain of Cw^tody-dx ,�j Page of A..�-a SiI r Anal tical. La' boratories I i Slut h irontrtent l'MQnit4ritl Ah, aTech. i Revised Laboratory Report Report ID: 151329 South Tahoe Public Utility District Date: 12/27/2016 Attn:Terry Powers Client: STP-101 1275 Meadow Crest Drive TaIcen by; Auto Sampler i South Lake Tahoe,CA 96150 PO#: Priority Pollutant i Dear Terry Powers, It is the policy of Sierra Environmental Monitoring to strictly adhere to a comprehensive Quality Assurance Plan that insures the data presented in this report are both accurate and precise. Sierra Environmental Monitoring maintains I accreditation in the State of Nevada(NV-00015)and the State of California(ELAP 2990). I ' I The data presented in this report were obtained from the analysis of samples received under a chain of custody, Unless otherwise noted below,samples were received in good condition,properly preserved and within the hold time for the requested analyses. Any anomalies associated with the analysis of the samples have been flagged with appropriate explanation in the Analysis Report section of this Laboratory Report. General Comments: - Revised Report:Corrected results for S201611-0207 i I Individual Sample Comments: j - There are no specific comments that are associated with these samples, i i Appro ed By: Date: 12/27/20.16 terra Environmen 1 onitoring This report is applicable only to the sa received by the laboratory.The liability of the laboratory is limited to the amount paid for this report.This report is for the exclusive use of the client to whom it is addressed and upon the condition that the client assumes all liability for the further distribution of the report or its contents. I Page 1 of 7 Carly Wood 1135 Financial Blvd. John Faulstich Laboratory Director Reno,NV 89502-2348 Phone(775)857-2400 Fax Quality Assurance Manager (888)398-7002 jnava@sem-analyt]cal.com SoilverSt te .Analytical Laboratories Sl�r���h�slron�t�Rt�llwttonita�ing _. �C1f1. Revised Laboratory Report Report II): 151329 South Tahoe Public Utility District Date: 12/27/2016 Attn:Terry Powers Client: STP-101 i1275 Meadow Crest Drive Taken by:' Auto Sampler South Lake Tahoe,CA 96150 PO#: Priority Pollutant i Analysis Report j Laboratory Accreditation Number:ELAP 2990 i Laboratory Sample ID Customer Sample ID Date Sampled Time Sampled Date Received S201611-0204 AG53550-Raw Influent 11/1/2016 11/3/2016 I Reporting Date Data Parameter Method Result Units Limit Analyst Analyzed Flag Aluminum-ICP-OES EPA 200.7 0.3 mg/L 0.1 Mallciewich 11/23/2016 Antimony-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Arsenic-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/1412016 Barium ICP-MS EPA200.8 0.03 mg/L 0.02 Malkiewich 11/14/2016 Beryllium-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Cadmium-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Calcium-ICP-OES EPA 200.7 19 mg/L 1 Malkiewich 11/23/2016 Chromium-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 i Cobalt-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Copper-ICP-MS EPA 200.8 0.029 mg/L 0.004 Mallciewich 11/14/2016 Iron-ICP-OES EPA 200.7 0.8 mg/L 0.1 Malkiewich 11/23/2016 I j Lead-ICP-MS EPA 200.8 0.004 mg/L 0.004 Malkiewich 11/14/2016 Magnesium-ICP-OES EPA 200.7 4 mg/L 1 Malkiewich 11/23/2016 Manganese-ICP-MS EPA 200.8 0.058 mg/L 0.004 Malkiewich 11/14/2016 Mercury-AA Cold Vapor EPA 245.1 <0.0001 mg/L 0.0001 Kleinworth 1 1110/20 1 6 Molybdenum-ICP-MS EPA 200.8 0.012 mg/L 0.004 Mallciewich 11/14/2016 Nickel-ICP-VIS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 1 1114/20 1 6 ! Potassium-ICP-OES EPA 200.7 10 mg/L 1 Malkiewich 11/23/2016 Selenium-ICP-MS EPA 200.8 <0.02 mg/L 0.02 Mallciewich 11/14/2016 j Silver-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Sodium-ICP-OES EPA 200.7 37 mg/L 1 Mallciewich 11/23/2016 Thallium-ICP-MS EPA 200.8 <0.002 mg/L 0.002 Malkiewich 11/14/2016 Total Recoverable Metals-Acid Dig EPA 200.2 Completed Kleinworth 11/4/2016 Vanadium-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Zinc-ICP-MS EPA 200.8 0.17 mg/L 0.04 Malkiewich 11/14/2016 I i I Page 2 of 7 Carly Wood 1135 Financial Blvd. John Faulstich j Laboratory Director Reno,NV 89502-2348 Quality Assurance Manager Phone(775)857-24.00 Fax (888)398-7002 jnava@sem-analytical.com i N "....,Asi I 'verStte Analytical Labor atones i�rra fanvlr� meutal(Ufon�C�tinq L. Revised Laboratory Report Report ID: 151329 South Tahoe Public Utility District Date: 12/27/2016 Attn:Terry Powers Client: STP-101 1275 Meadow Crest Drive Taken by: Auto Sampler South Lake Tahoe,CA 96150 PO#: Priority Pollutant Analysis Report i Laboratory Accreditation Number:ELAP 2990 Laboratory Sample ID Customer Sample ID Date Sampled Time Sampled Date Received S201611-0205 AG53553 -Final Effluent I1/1/2016 11/3/2016 Reporting Date Data Parameter Method Result Units Limit Analyst Analyzed Flag i Aluminum ICP-OES EPA 200.7 <0.2 mg/L. 0.2 Malkiewich 11/23/2016 j Antimony-ICP-MS EPA 200.8 <0.004 mg/L 0,004 Malkiewich 11/14/2016 Arsenic-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Barium-ICP-MS EPA 2K8 <0.02 mg/L 0.02 Malkiewich 11/14/2016 Beryllium-ICP-MS EPA 200.8 <0,004 mg/L 0.004 Malkiewich 11/14/2016 Cadmium-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Calcium-ICP-OES EPA 200.1 16 mg/L 2 Malkiewich 11/23/2016 i Chromium-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Cobalt-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Copper-ICP-MS EPA 200.8 0.008 mg/L 0.004 Malkiewich 11/14/2016 I Iron-ICP-OES EPA 200.7 <0.2 mg/L 0.2 Malkiewich 11/23/2016 Lead-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Magnesium-ICP-OES EPA 200.7 3 mg/L 2 Malkiewich 11/23/2016 Manganese-ICP-MS EPA 200.8 0.040 mg/L 0,004 Malkiewich 11/14/2016 Mercury-AA Cold Vapor EPA 245.1 <0.0001 mg/L 0.0001 I{leinworth 11/10/2016 Molybdenum-ICP-MS EPA 200.8 0.010 mg/L 0.004 Malkiewich 11/14/2016 Nickel-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Potassium-ICP-OES EPA 200.7 10 mg/L 2 Malkiewich 11/23/2016 Selenium-ICP-MS EPA 200.8 <0.02 mg/L 0.02 Malkiewich 11/14/2016 i Silver-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 Sodium-ICP-OES EPA 200.7 45 mg/L 2 Malkiewich 11/23/2016 I Thallium-ICP-MS EPA 200.8 <0.002 mg/L 0.002 Malkiewich 11/14/2016 Total Recoverable Metals-Acid Dig EPA 200.2 Completed Kleinworth 11/4/2016 Vanadium-ICP-MS EPA 200.8 <0.004 mg/L 0.004 Malkiewich 11/14/2016 i Zinc-ICP-MS EPA 200.8 0.05 mg/L 0.04 Malkiewich 11/14/2016 i I i . i I I ' I i i Page 3 of 7 Carly Wood 1135 Financial Blvd. John Faulstich Laboratory Director Reno,NV 89502-2348 Quality Assurance Manager Phone(776)857-2400 Fax (888)398-7002 Inava@sem-analytical.com ISill:Y 1stidt :Analytical laboratories. Slgr MIDMOCIna: elf' 11. i Revised Laboratory Report Report ID: 151329 South Tahoe Public Utility District Date: 12/27/2016 I Attn:Terry Powers Client: STP-101 1275 Meadow Crest Drive Taken by: Auto Sampler South Lake Tahoe,CA 96150 PO#: Priority Pollutant Analysis Report Laboratory Accreditation Number:ELAP 2990 Laboratory Sample ID Customer Sample ID Date Sampled Time Sampled Date Received S201611-0206 AG53555-Centrifuge Calce 11/1/2016 11/3/2016 Reporting Date . Data Parameter Method Result Units Limit Analyst Analyzed Flag Aluminum-ICP-OES SW-846 6010A 1600 mg/Kg 20 Malkiewich 12/1/2016 Antimony-ICP-MS SW-846 6020 <1 mg/Kg 1 Malkiewich 11/14/2016 Arsenic-ICP-MS SW-846 6020 4 mg/I(g 1 Malkiewich 11/14/2016 Barium-ICP-MS SW-846 6020 72 mg/1{g 5 Malldewich 11/14/2016 Beryllium-ICP-MS SW-846 6020 <1 mg/Kg 1 Malkiewich 11/14/2016 j Cadmium-ICP-MS SW-846 6020 <1 mg/1(g 1 Mallciewich 11/14/2016 Calcium-ICP-OES SW-846 6010A 11000 mg/Kg 200 Malkiewich 12/1/2016 Chromium-ICP-MS SW-846 6020 7 mg/Kg 1 Mallciewich 11/14/2016 Cobalt-ICP-MS SW-846 6020 <1 mg/Kg 1 Mallciewich 11/14/2016 j Copper-ICP-MS SW-846 6020 120 mg/Kg 1 Malkiewich 11/14/2016 Iron-ICNOES SW-846 6010A 3900 mg/Kg 20 Malkiewich 12/1/2016 Lead-ICP-MS SW-846 6020 4 mg/Kg 1 Mallciewich 11/14/2016 Magnesium-ICP-OES SW-846 6010A 1800 mg/Kg 200 Mallciewich 12/1/2016 Manganese-ICP-MS SW-846 6020 67 mg/Kg 1 Mallciewich 1 1114/20 1 6 Mercury-AA Cold Vapor SW-846 7471 <0.03 mg/Kg 0.03 Kleinworth 11/14/2016 JI Molybdenum-ICP-MS SW-846 6020 7 mg/Kg 1 Malkiewich 11/14/2016 Nickel-ICP-MS SW-846 6020 5 mg/Kg 1 Malkiewich 11/14/2016 Potassium-ICP-OES SW-846 6010A 1600 mg/Kg 200 Malkiewich 12/1/2016 Selenium-ICP-MS SW-846 6020 <5 mg/Kg 5 Malkiewich 11/14/2016 Silver-ICP-MS SW-846 6020 <1 mg/Kg 1 Malkiewich 11/14/2016 Sodium-ICP-OES. SW-846 6010A 310 mg/l(g 200 Malkiewich 12/1/20I6 Thallium-ICP-MS SW-846 6020 <1 mg/Kg 1 Malkiewich 11/14/2016 I Total Recoverable Metals-Acid Dig SW=846 3050A Completed Kleinworth 11/8/2016 Vanadium-ICP-MS SW-846 6020 7 mg/Kg 1 Malkiewich 11/14/2016 i Zinc-ICP-MS SW-846 6020 400 mg/Kg 10 Malkiewich 11/14/2016 I Page 4 of 7 Carly Wood 11.36 Financial Blvd. John Faulstich Laboratory Director Reno,NV 89502-2348 Quality Assurance Manager Phone(775)857-2400 Fax (888)398-7002 jnava@sem-analytical.com I � ilversta e I ' + Analytical Laboratories i Revised Laboratory Report Report ID: 151329 South Tahoe Public Utility District Date: 12/27/2016 Attn:Terry Powers Client: STP-101 1275 Meadow Crest Drive Taken by: Auto Sampler South Lake Tahoe,CA 96150 PO#: Priority Pollutant Analysis Report Laboratory Accreditation Number:ELAP 2990 Laboratory Sample ID Customer Sample ID Date Sampled Time Sampled Date Received 5201611-0207 AG53555-Centrifuge Calve-wet 11/1/2016 11/3/2016 Reporting Date Data Parameter Method Result Units Limit Analyst Analyzed Flag Aluminum-ICP-OES SW-846 6010A 420 mg/ICg 7 Malkiewich 12/1/2016 i Antimony-ICP-MS SW-846 6020 <0.3 mg/Kg 0.3 Malkiewich 11/14/2016 Arsenic-ICP-MS SW-846 6020 1.0 mg/Kg 0.3 Malkiewich 11/14/2016 Barium-ICP-MS SW-846.6020 19 mg/Kg. 0.3 Malkiewich 11/14/2016 Beryllium-ICP-MS SW-846 6020 <0.3 mg/Kg 0.3 Malkiewich 11/14/2016 Cadmium-ICP-MS SW-846 6020 <0.3 mg/Kg 0.3 Malkiewich 11/14/2016 Calcium-ICP-OES SW-846 6010A 2800 mg/Kg 70 Malkiewich 12/1/2016 Chromium-ICP-MS SW-846 6020 2 mg/Kg 0.3 Malkiewich 11/14/2016 Cobalt-ICP-MS SW-846 6020 <0.3 mg/Kg 0.3 Malkiewich 11/14/2016 Copper-ICP-MS SW-846 6020 32 mg/Kg 0.3 Malkiewich 11/14/2016 Iron-ICP-OES. SW-846 6010A 1000 mg/Kg 7 Malkiewich 12/l/2016 Lead ICP-MS SW-846 6020 1 mg/I{g 0.3 Malkiewich 11/14/201.6 Magnesium-ICP-OES SW-846 6010A 480 mg/Kg 70 Malkiewich 12/1/2016 Manganese-ICP-MS SW-846 6020 17 mg/Kg 0.3 Malkiewich 11/14/2016 Mercury-AA Cold Vapor SW-846 7471 <0.008 mg/Kg 0.008 Kleinworth 11/1.4/2016 it ; Moisture Content SM 2540 G 74 % 0.1 Kleinworth 11/4/2016 Molybdenum-ICP-MS SW-846 6020 2 mg/11-g 0.3 Malkiewich 11/14/2016 I Nickel-ICP-MS SW-846 6020 1 mg/Kg 0.3 Malkiewich 11/14/2016 Potassium-ICP-OES SW-846 6010A 420 mg/Kg 70 Malkiewich 12/1/2016 Selenium-ICP-MS SW-846 6020 <1.5 mg/Kg 1.5 Malkiewich 11/14/2016 . Silver-ICP-MS SW-8466020. <0.3 mg/I{g 0.3 Malkiewich 11/14/2016 Sodium-ICP-OES SW-846 6010A 81 mg/Kg 60 Malkiewich 12/1/2016 Thallium-ICP-MS SW-846 6020 <0.3 mg/Kg 0.3 Malkiewich 11/14/2016 Total Recoverable Metals-Acid Dig SW-846 3050A Completed Kleinworth 11/8/2016 i Vanadium-ICP-MS SW-846 6020 2 mg/ICg 0.3 Malkiewich 11/14/2016 Zinc-ICP-MS SW-846 6020 100 mg/I{g 3 Malkiewich 11/14/2016 Data Flag Legend. j Jl-The batch MS and/or MSD were outside acceptance limits. The batch LCS was acceptable. Page 5 of 7 Carly Wood 1135 Financial Blvd. John Faulstich Laboratory Director Reno,NV 89502-2348 Quality Assurance Manager Phone(775)857-2400 Fax (888)398-7002 jnava@sem-analytical.com i k i- j .: silverSkite, j I Analytical Laborato les i Revised Laboratory Report Report ID: 151329 i South Tahoe Public Utility District Date: 12/27/2016 Attn:Terry Powers Client: STP-101 1275 Meadow Crest Drive Taken by: Auto Sampler j South Lake Tahoe,CA 96150 PO#: Priority Pollutant I Quality Control Report t Parameter LCS, % MS, % MSD, % RPD, % Method Blank j Recovery Recovery Recovery Aluminum-ICP-OES 97.0 92.0 88.0 4.47 <0.2 mg/L j Aluminum-ICP-OES 98.0 95.0 96.0 1.57 <0.05 mg/L Antimony-ICP-MS 99.0 97.0 101.0 4.14 <0.002 mg/L Antimony-ICP-MS 99.0 74.0 74.0 0.13 <0.01 mg/Kg i Arsenic-ICP-MS 99.0 99.0 104.0 4.62 <0.002 mg/L Arsenic-ICP-MS 99.0 89.0 88.0 1.58 <0.01 mg/Icg Barium-ICP-MS 98.0 96,0 99.0 3.18 <0.01 mg/L ' Barium-ICP-MS 99.0 90.0 90.0 0.00 <0,05 mg/Kg Beryllium-ICP-MS 98.0 86.0 83.0 3.55 <0.01 mg/Kg I 1 Beryllium-ICP-MS 99.0 100.0 104.0 3.92 <0.002 mg/L i Cadmium-ICP-MS 94.0 91.0 95.0 3.76 <0.002 mg/L I , Cadmium-ICP-MS 96.0 87.0 86.0 1.51 <0.01 mg/Kg I Calcium-ICP-OES 97.0 106.0 109.0 2.32 <0.5 mg/L Calcium-ICP-OES 96.0 88.0 81.0 7.41 <2 mg/L Chromium-ICP-MS 100.0 91.0 90.0 1.88 <0.01 mg/Kg Chromium-ICP-MS 100.0 99.0 102.0 3.29 <0.002 mg/L Cobalt-ICP-MS IWO 92.0 91.0 1.31 <0.01 mg/Kg j Cobalt-ICP=MS 99.0 97.0 101.0 4.45 <0.002 mg/L I Copper-ICP-MS 98.0 96.0 101.0 4.66 <0.002 mg/L Copper-ICP-MS 102.0 94.0 92.0 2.15 <0.01 mg/Kg Iron-ICP-OES 96.0 86.0 80.0 6.02. <0.2 mg/L Iron-ICP-OES 97.0 100.0 101.0 1.50 <0.05 mg/L Lead-ICP-MS 98.0 79.0 77.0 2.56 <0.01 mg/Kg Lead-ICP-MS 102.0 98.0 103.0 4.28 <0.002 mg/L j Magnesium-ICP-OES 98.0 94.0 92.0 2.29 <2 mg/L . Magnesium-ICP-OES 97.0 98.0 100.0 2.52 <0.5 mg/L Manganese-ICP-MS 99.0 92.0 91.0 1.09 <0.01 mg/Kg I Manganese-ICP-MS 99.0 98.0 102.0 3.99 <0.002 mg/L I j Mercury-AA Cold Vapor 96.0 62.0 64.0 1.97 <0.0001 mg/L Mercury-AA Cold Vapor 99.0 101.0 102:0 1.58 <0.0001 mg/L i Page 6 of 7 i Carly Wood 1135 Financial Blvd, John Faulstich Laboratory Director Reno,NV 89502-2348 Quality Assurance Manager Phone(775)857-2400 Fax (888)398-7002 jnava@sem-analytical.com _ i I _ Soi I o sta e Analytical. l:dbcaeator es St r a: t vit n cal lsllQr�ttofl t8 , Revised Laboratory Report Report ID: 151329 South Tahoe Public Utility District Date: 12/27/2016 Attn:Terry Powers Client: STP-101 1275 Meadow Crest Drive Taken by: Auto Sampler South Lake Tahoe,CA 96150 PO#: Priority Pollutant ;. i Quality Control Report Parameter LCS, % MS, % MSD, % RPD, % Method Blank Recovery Recovery Recovery Molybdenum-ICP-MS 103.0 93.0 91.0 2.06 <0.01 mg/Kg Molybdenum-ICP-MS 103.0 98.0 102.0 3.70 <0.002 mg/L Nickel-ICP-MS 93.0 84,0 82.0 1.57 <0.01 mg/ICg Nickel-ICP-MS 101.0 98.0 103.0 4.87 <0.002 mg/L Potassium-ICP-OES 97.0 96.0 98.0 2.07 <0.5 mg/L Potassium-ICP-OES 98.0 93.0 91.0 2.04 <2 mg/L Selenium-ICP-MS 100.0 97.0 102.0 5,02 <0.01 mg/L Selenium-ICP-MS 99.0 84.0 83.0 0.48 <0.05 mg/K9 Silver-ICP-MS 100.0 101.0 106.0 4.83 <0,002 mg/L Silver-ICP-MS 101.0 106.0 104,0 1.90 <0.01 mg/Kg Sodium-ICP-OES 96.0 99.0 98.0. 1.27 <2 mg/L Sodium-ICP-OES 95.0 108.0 110.0 2.29 <0.5 mg/L Thallium ICP-MS 100.0 95.0 101.0 6.23 <0.001 mg/L Thallium-ICP-MS 100.0 80.0 78.0 2.39 <0.005 mg/Kg Vanadium-ICP-MS 100.0 99.0 102.0 2.68 <0.002 mg/L Vanadium-ICP-MS 99.0 93.0 92.0 1.41 <0.01 mg/ICg Zinc-ICP-MS; 99.0 92.0 89.0 3.86 <0.1 mg/Kg Zinc-ICP-MS 100.0 94.0 98.0 4.15 <0.02. mg/L i Legend: LCS-Laboratory Control Standard MS-Matrix Spike MSD-Matrix Spike Duplicate RPD-Relative Percent Difference i Page 7 of 7 Carly Wood 1135 Financial Blvd. John Faulstich Laboratory Director Reno, NV 89502-2348 Quality Assurance Manager Phone(775)857-2400 Fax (888)398-7002 jnava@sem-analytical.com I ENVIRONMENTAL AGRICULTURAL Analytical Chemists December 2, 2016 South Tahoe Public Utility District Lab ID : SP 1613229 1275 Meadow Crest Drive Customer 2-11369 South Lake Tahoe,CA 96150 Laboratory Report Introduction: This report package contains total of 42 pages divided into 3 sections: Case Narrative (3 pages) : An overview of the work performed at FGL. Sample Results (20 pages) : Results for each sample submitted. Quality Control (19 pages) : Supporting Quality Control (QC)results. Case Narrative This Case Narrative pertains to the following samples: Sample Description Date Sampled Da teed FGL Lab ID # Matrix Travel Blank 11/01/2016 11/03/2016 SP 1613229-000 LBW Raw Influent-Grab 11/01/2016 11/03/2016 SP 1613229-001 WW Final Effluent-Grab 11/01/2016 11/03/2016 SP 1613229-002 WW Raw Influent 11/01/2016 11/03/2016 SP 1613229-003 WW Final Effluent 11/01/2016 11/03/2016 SP 1 6 1 3 229-004 WW Centrifuge Cake 11/01/2016 1 11/03/2016 1 SP 1613229-005 1 SI Sampling and Receipt Information: All samples were received in acceptable condition and within temperature requirements,unless noted on the Condition Upon Receipt(CUR) form. All samples arrived at 5 'C. All samples were prepared and analyzed within the method specified hold time. All samples were checked for pH if acid or base preservation is required(except for VOAs). For details of sample receipt information,please see the attached Chain of Custody and Condition Upon Receipt Form. Quality Control: All samples were prepared and analyzed according to the following tables: Organic QC 3520 11/07/2016:213448 All preparation quality controls are within established criteria. 11/10/2016:213819 All preparation quality controls are within established criteria,except: The following note applies to 1,1-Dichloroethylene: 503013 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. The following note applies to 1,1-Dichloroethylene: 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. 11/14/2016:213848 All preparation quality controls are within established criteria,except: Amended Page 1 of 42 Corporate Offices S Laboratory Office 6 Laboratory Office&Laboratory Offfoe 3 Laboratory Office 3 Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172 1 Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Organic QC 5030B The following note applies to Toluene: 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. 11/09/2016:216312 All analysis quality controls are within established criteria,except: 608/8081 The following note applies to Beta BHC,Endosulfan II,Endrin,Heptachlor,Methoxychlor,p,p-DDD,p,p- DDT: 360 CCV above Acceptance Range(AR).Samples which were non detect for this analyte were accepted. 11/04/2016:213374 All preparation quality controls are within established criteria,except: The following note applies to Dieldrin,Heptachlor: 320 LCS not within Acceptance Range(AR).Data was accepted based on the BSBSD recovery. The following note applies to Alpha BHC,Delta BHC,Dieldrin,Endosulfan Sulfate,Heptachlor,Heptachlor Epoxide,Lindane,Methoxychlor: 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. The following note applies to Alpha BHC,alpha-Chlordane,Aldrin,Beta BHC,Delta BHC,Dieldrin, Endosulfan I,Endosulfan II,Endosulfan Sulfate,Endr: 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. 8082 11/16/2016:216762 All analysis quality controls are within established criteria. 11/07/2016:213422 All preparation quality controls are within established criteria,except: 8082A The following note applies to PCB 1260- 1: 436 Blank Spike(BS)not within Acceptance Range(AR).Data was accepted based on the LCS or CCV recovery. 11/10/2016:216732 All analysis quality controls are within established criteria,except: 8260B The following note applies to Acrylonitrile,Bromomethane(Methyl Bromide),Chloroethane(Ethyl Chloride),Carbon Disulfide,Isopropyl Ether,Methyl t: 360 CCV above Acceptance Range(AR).Samples which were non detect for this analyte were accepted. 11/14/2016:216761 All analysis quality controls are within established criteria,except: The following note applies to 1,2,3-Trichlorobenzene,Acrylonitrile: 360 CCV above Acceptance Range(AR). Samples which were non detect for this analyte were accepted. 8270C 11/23/2016:217176 All analysis quality controls are within established criteria. 11/23/2016:217215 All analysis quality controls are within established criteria. 11/14/2016:213741 All preparation quality controls are within established criteria,except: Amended Page 2 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-1 i369 Organic QC The following note applies to Di-n-butylphthalate: 210 The method blank was positive.However,samples reported were either ten times greater than the blank concentration or non detect and accepted. 8270C The following note applies to 2,4-Dinitrotoluene,Acenaphthene,Pentachlorophenol,N-Nitrosodi-N- propylamine,4-Chloro-3-methylphenol,Pyrene, 1,2,4-T: 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. The following note applies to N-Nitrosodi-N-propylamine,p-Terphenyl-dl4,Phenol-d6: 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. Discussion of Analytical Results: Amended Report SP 1613229-003 Raw Influent Amended to clarify the preparation and analytical method designations for EPA Method 8081 SP 1613229-004 Final Effluent Amended to clarify the preparation and analytical method designations for EPA Method 8081 Certification:: I certify that this data package is in compliance with ELAP standards,both technically and for completeness, except for any conditions listed.above. Release of the data contained in this data package is authorized by the Laboratory Director or his designee, as verified by the following electronic signature. KD:VT Dip,111y 6,-1 by M,id rile.B.A..M.B.A. Approved By David Terz,B.A.,M.B.A. f MI.:QADi—m, u m:xoi F-i 1-0z Amended Page 3 of 42 ENVIRONMENTAL Analytical Chemists December 2, 2016 Lab ID : SP 1613229-000 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : November 1,2016-00:00 South Lake Tahoe, CA 96150 Sampled By : P. Kunibe Received On : November 3, 2016-10:15 Matrix : Lab. Blank Water Description : Travel Blank Project : Priority Pollutants Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID \ledlod Date In EPA 8260 4-Bromofluorobenzenet 79.3 79-119 % 5030B 11/10/16:213819 8260B 11/10/16:216732 Dibromofluoromethanet 119 84-136 % 5030B 11/10/16:213819 8260E 11/10/16:216732 1,2-Dichloroethane-d4t 81.1 58-166 % 5030B 11/10/16:213819 8260B 11/10/16:216732 Toluene-d8t 99.2 88-111 % 5030B 11/10/16:213819 8260B 11/10/16:216732 Acetone ND 50 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Acrolein ND 50 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Acrylonitrile ND 50 ug/L 5030E 11/10/16:213819 8260B I1/10/16:216732 Benzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Bromobenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B I1/10/16:21673_ Bromochloromethane ND 0.5 ug/L 5030E II/10/16:213819 8260E 1I/10/16:216732 Bromodichloromethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Bromoform ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Bromomethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 tert-Butanol ND 5 ug/L 5030B 11/10/16:213819 826DB 11/10/16:216732 2-Butanone(MEK) ND 10 ug/L 5030E 11/10116:213819 8260B 11/10/16:216732 n-Butylbenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 sec-Butylbenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 tert-Butylbenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11110/16:216732 Carbon Disulfide ND 20 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Carbon Tetrachloride ND I ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Chlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Chloroethane ND 1 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Chloroform ND 1 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Chloromethane ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 2-Chlorotoluene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 4-Chlorotoluene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Dibromochloromethane ND 1 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Dibromomethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2-Dichlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,3-Dichlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,4-Dichlorobenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 Dichlorodifluoromethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 1,1-Dichloroethane ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 1,2-Dichloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 ],I-Dichloroethylene ND 0.5 11g/1. 5030B 11/10/16:213919 8260B 11/10/16:216732 Amended Page 4 of 42 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172 1 Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 December 2, 2016 Lab ID : SP 1613229-000 Description : Travel Blank Customer ID 2-11369 Sample Result;-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 cis-1,2-Dichloroethylene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 trans-1,2-Dichloroethylene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 1,2-Dichloropropane ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 1,3-Dichloropropane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 2,2-Dichloropropane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 1,1-Dichloropropene ND 0.5 ug/L 5030B 11/10/16.213819 8260E 11/10/16:216732 cis-1,3-Dichloropropene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 trans-l,3-Diehl oropropene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Di-isopropyl ether(DiPE) ND 5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Ethyl Benzene _ ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Ethyl tert-butyl ether ND 2 U^/L 5030B 11/10/16:213819 8260B 11/10/16:216732 (ETBE) 5 Hexachlorobutadiene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 2-Hexanone ND 10 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Isopropylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 p-Isopropyltoluene ND 0.5 ug/L 5030B 11110/16:213819 8260B 11/10/16:216732 Methyl tert-butyl ether ND D 2 ug/L 5030B II/10/16:213819 8260B 11/10/16:216732 4-Methyl-2-pentanone (MIBK) ND 10 ug/L 5030B I]/10/16:213819 8260B 11/10/16216732 Methylene Chloride ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Naphthalene ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 n-Propylbenzene ND 0.5 ug/L 5030B I1/10/16:213819 9260B 11/10/16:216732 Styrene ND 0.5 ug/L 5030E 11/10116:213819 8260B 11/10/16:216732 tert-Amyl methyl ether (TAME) ND 5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1,1,2-Tetrachlbroethane ND 0.5 ug/L 5030E 11/10/16:213819 ' 8260B 11/10/16:216732 1,1,2,2-Tetrachloro ethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Tetrachloroethylene ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 Toluene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2,3-Trichlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 1,2,4-Trichlorobenzene ND 0.5 ug/L 560B 11/10/16:213819 8260E 11/10/16:216732 1,1,1-Trichloro ethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1,2-Trichloro ethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Trichloroethylene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Trichlorofluoromethane ND 1 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2,4-Trimethylbenzene ND 0.5 ug/L 5030B 11110/16:213819 8260B 11/10/16:216732 1,3,5-Trimethylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Vinyl Acetate ND 10 ug/L 5030B 11/10/16:213819 8260B 11/10116:216732 Vinyl,Chloride ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Xylenes ND -- ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Xylenes m,p ND 2 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Amended Page 5 of 42 December 2, 2016 Lab ID : SP 1613229-000 Description : Travel Blank Customer ID 2-11369 Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 Xylenes 0 I ND 2 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 ND=Non-Detected.PQL=Practical Quantitation Limit.$Surrogate.*PQL adjusted for dilution. / Amended Page 6 of 42 rGi- •O . , Analytical Chemists December 2, 2016 Lab ID : SP 1613229-001 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : November 1, 2016-13:45 South Lake Tahoe, CA 96150 Sampled By : P. Kunibe Received On : November 3, 2016-10:15 Matrix : Waste Water Description : Raw Influent-Grab Project : Priority Pollutants Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 4-Bromofluorobenzene$ 76.2 79-119 % 5030B 11/10/16:213819 8260E 1:/10116:216732 Dibromofluoromethane$ 119 84-136 % 5030B 11/10/16:213819 8260E l /10/16:216732 1,2-Dichloroethane-d4$ 79.1 58-166 % 5030B 11/10/16:213819 8260B 11/10/16:21673- Toluene-d8$ 98.8 88-111 % 5030B 11/10/16:213819 8260B 11/10/16:216732 Acetone 60 50 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Acrolein ND 50 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Acrylonitrile ND 50 ug/L 5030E 11110/16:213819 8260B 11/10/16:216732 Benzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:21673_' Bromobenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Bromochloromethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Bromodichloromethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Bromoform ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 Bromomethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 tert-Butanol ND 5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 2-Butanone(MEK) ND 10 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 n-Butylbenzene ND 0.5 ug/L 5030E 11/10116:213819 8260E 11/10/16:216732 sec-Butylbenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 tert-Butylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Carbon Disulfide ND 20 ug/L 5030B I1/10/16:213819 8260B 11/10116:216732 Carbon Tetrachloride ND I ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Chlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Chloroethane ND 1 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Chloroform ND I ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Chloromethane ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 2-Chlorotoluene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 4-Chlorotoluene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Dibromochloromethane ND 1 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Dibromomethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2-Dichlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,3-Dichlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 1,4-Dlchlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Dichlorodifluoromethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1-Dichloroethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 1,2-Dichloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 1,1-Dichloroethylene ND 0.5 ug/L 5030B 11r10%16:213819 8260B 11/10/1621673'_ Amended Page 7 of 42 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia.CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 December 2, 2016 Lab ID : SP 1613229-001 Description : Raw Influent-Grab Customer ID 2-11369 Sample Result- Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 cis-1,2-Dichloroethylene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 trans-1,2-Dichloroethylene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2-Dichloropropane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10116:216732 1,3-Dichloropropane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 2,2-Dichloropropane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1-Dichloropropene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 cis-1,3-Dichloropropene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 trans-1,3-Dichloropropene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Di-isopropyl ether(DIPE) ND 5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Ethyl Benzene ND 0.5 ug/L 5030B 11110/16:213819 8260B 11/10/16:216732 Ethyl tert-butyl ether (ETBE) ND 2 ug/L 5030B 11/]0/16:213819 8260B 11/10/16:216732 Hexachlorobutadiene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 2-Hexanone ND 10 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Isopropylbenzene ND 0.5 ug/L 5030B 11110/16:213819 8260E 11/10/16:216732 p-Isopropyltoluene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Methyl tert-butyl ether (MTBE) ND 2 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 4-Methyl-2-pentanone ND 10 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 (MIBK) Methylene Chloride ND 0.5 ug/L 5030B I1/10/16:213819 8260E 11/10/16:216732 Naphthalene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 n-Propylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Styrene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 tert-Amyl methyl ether (,TAME) ND 5 ug/L 5030B 11/]0/16:213819 8260B 11/10/16:216732 1,1,1,2-Tetrachloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1,2,2-Tetrachloroethane ND 0.5 ug/L 5030B 11110/16:213819 8260B 11/10/16:216732 Tetrachloroethylene ND 0.5 ug/L 5030E 11110/16:213819 8260B 11/10/16:216732 Toluene 3.4 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2,3-Trichlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2,4-Trichlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1,1-Trichloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1,2-Trichloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Trichloroethylene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Trichlorofluoromethane ND 1 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2,4-Trimethylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 1,3,5-Trimethylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Vinyl Acetate ND 10 ug/L 5030E 11/10/16:213819 8260B 11110/16:216732 Vinyl Chloride ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Xylenes ND -- ug/L 5030B 11110/16:213919 8260B 11/10/16:216732 Xylenes m,p ND 2 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Amended Page 8 of 42 December 2, 2016 Lab ID : SP 1613229-001 Description : Raw Influent-Grab Customer ID 2-11369 Sample Result-Organic Constituent Result PQL- Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 Xylenes o ND 2 ug/L 5o30B 11/10/16:213819 8260B 11/10/16:216732 ND=Non-Detected.PQL=Practical Quantitation Limit.+Surrogate.*PQL adjusted for dilution. l i Amended Page 9 of 42 z i ENVIRONMENTAL AGRICULTURAL Analytical Chemists December 2, 2016 Lab ID : SP 1613229-002 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : November 1, 2016-13:41 South Lake Tahoe,CA 96150 Sampled By : P. Kunibe Received On : November 3,2016-10:15 Matrix : Waste Water Description : Final Effluent-Grab Project : Priority Pollutants Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date'1D EPA 8260 4-Bromofluorobenzenet 77.7 79-119 % 5030B 11/10/16:213819 8260B 11/10/16:216732 Dibromofluoromethanet 116 84-136 % 5030B 11/10/16:213819 8260B 11/10/16:21673_ 1,2-Dichloroethane-d4l 78.8 58-166 % 5030B 11/10116:213819 8260B 11/10/16:216732 Toluene-d8t 99.7 88-111 °11, 5030B 11/10/16:213819 8260B 11/10/16:21673_ Acetone ND 50 ug 1. 5030B 11/10/16:213819 8260B 11/10(16:216732 Acrolein ND 50 ug/L 5030E 11/10/16:213819 8260B u/10/16:21673'_ Acrylonitrile ND 50 ug/L 5030B 11/10116:213819 8260B 11/10/16:216732 Benzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Bromobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Bromochloromethane ND 0.5 ug/L 5030E 11/10116:213819 8260E 11/10/16:216732 Bromodichloromethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Bromoform ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10(16:216732 Bromomethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10(16:216732 tert-Butanol ND 5 ug/L 5030B 11110/16:213819 8260B 11/10/16:216732 2-Butanone(MEK) ND 10 ug/L 5030E 11/10/16:213819 8260E 11/10/16:21673_ n-Butylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10116:216732 sec-Butylbenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 tert-Butylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E I1/10/16:216732 Carbon Disulfide ND 20 ug/L 5030B 11/10/16:213819 8260B 11/10/16:21673' Carbon Tetrachloride ND 1 ug/L 5030E 11/10/16:213819 8260B 11/10/16:21673' Chlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:21673' Chloroethane ND 1 ug/L 5030B 11/10/16:213819 8260B 11/10/16:21673_ Chloroform ND I ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Chloromethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11110/16:21673_2 2-Chlorotoluene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 4-Chlorotoluene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Dibromochloromethane ND 1 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Dibromomethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2-Dichlorobenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 1,3-Dichlorobenzene ND 0.5 ug/L 5030E 11/10116:213819 8260B 11/10(16:216732 1,4-Dichlorobenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Dichlorodifluoromethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 1,1-Dichloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,2-Dichloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1-Dichloroethylene ND 0.5 ufZL 5030B 11i1on6:213819 9260B 11/10/16:216732 Amended Page 10 of 42 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office S Laboratory Office 6 Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empress Drive,Suite D 9415 W Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)§25-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 I December 2, 2016 Lab ID : SP 1613229-002 Description : Final Effluent- Grab Customer ID 2711369 Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 - cis-1,2-Dichloroethylene ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 trans-1,2-Dichloroethylene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 1,2-Dichloropropane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,3-Dichloropropane ND -0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 2,2-Dichloropropane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 I,I-Dichloropropene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 cis-1,3-Dichloropropene ND 0.5 ug/L, 5030E 11/10/16:213819 8260E 11/10/16:216732 trans-l,3-Dichloropropene ND 0.5 ug/L 5030B 11/10/16213819 8260B 11/10/16:216732 Di-isopropyl ether(DIPE) ND 5 ug/L ,,5030B 11/10/16:213819 8260E 11/10/16:216732 Ethyl Benzene ND 0.5 ug/L 5030B I I/10/16:213819 8260E 11/10/16:216732 Ethyl tert-butyl ether (ETBE) ND 2 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Hexachlorobutadiene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 2-Hexanone ND 10 ug/L 5030E 11/10/16:213819 8260E 11/10116:216732 Isopropylbenzene ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 p-Isopropyltoluene ND 0.5 ug/L 5030B 11/10116:213819 8260B 11/10/16:216732 Methyl tert-butyl ether (MTBE) ND 2 ug/L 5030B 11/10/16.213819 8260B 11/10/16:216732 4-Methyl-2-pentanone ND 10 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 (MIBK) Methylene Chloride ND 0.5 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Naphthalene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 n-Propylbenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 Styrene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 tert-Amyl methyl ether (TAME) ND 5 ug/L 5030B 11/10/16:213819 8260B 1 1/1 0/1 6 11/10/16:216732 1,1,1,2-Tetrachloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1,2,2-Tetrachloroethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Tetrachloroethylene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Toluene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16216732 1,2,3-Trichlorobenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260E 11/10/16:216732 1,2,4-Trichlorobenzene ND 0.5 ug/L 5030B 11/10/16213819 8260B 11/10/16:216732 1,1,1-Trichloroethane ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 1,1,2-Trichloro ethane ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Trichloroethylene ND 0.5 ug/L 5030B 11/10/16:213819 8260B 11/10/16:216732 Trichlorofluoromethane ND 1 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 1,2,4-Trimethylbenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B,, 11/10/16:216732 1,3,5-Trimethylbenzene ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Vinyl Acetate ND 10 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Vinyl Chloride ND 0.5 ug/L 5030E 11/10/16:213819 8260B 11/10/16:216732 Xylenes ND -- ug/L 5030E 11/10/16213819 8260E 11/10/16:216732 Xylenes m,p ND 2 ug/L 5030B 11/10/16:213819 8260E 11/10/16:216732 Amended Page 11 of 42 December 2, 2016 Lab ID : SP 1613229-002 Description : Final Effluent-Grab Customer ID 2-11369 Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/11) Method Date/ID EPA 8260 Xylenes o I ND 2 ug/L 1030B 11/10/16:213819 8260E 11/10/16:216732 ND=Non-Detected.PQL=Practical Quantitation Limit.$Surrogate.*PQL adjusted for dilution. Amended Page 12 of 42 ENVIRONMENTAL AGRICULTURAL Analytical Chemists December 2, 2016 Lab ID : SP 1613229-003 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : November 1,2016-00:00 South Lake Tahoe, CA 96150 Sampled By : Ops Received On : November 3, 2016-10:15 Matrix : Waste Water Description : Raw Influent Project : Priority Pollutants Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Datc/ID Tmethod Date/ID EPA 8081 Tetrachloro-m-x lent 25.2 15-143 % 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Aldrin ND 0.05 ug/L 608/8081 11/04/16:213374 609/8081 11/09/16:216312 Alpha BHC ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Beta BHC ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Delta BHC ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:21631- Gamma BHC(Lindane) ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Chlordane ND 0.5 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 alpha-Chlordane ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 gamma-Chlordane ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09116:216312 4,4-DDD ND 0.05 ug/L 608/8081 11/04/16:213374 609/8081 11/09/16:216312 4,4-DDE ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 4,4-DDT ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Dieldrin ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Endosulfan I ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Endosulfan II ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Endosulfan Sulfate ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Endrin ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Endrin Aldehyde ND 0.05 ug/L 008/8081 11/04116:213374 608/8081 11/09/16:216312 Endrin Ketone ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Heptachlor ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Heptachlor Epoxide ND 0.05 ug/L 608/8081 I1/04/16:213374 608/8081 11/09/16:216312 Methoxychlor ND 0.1 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:21631'- Toxa hene ND 0.5 ug/L 1 608/8091 11'04/16:213374 608.8081 11 09 16 21631? EPA 8082 Tetrachloro-m-X lent 23.2 26-102 % 8082A 11,07,16:213422 8082 I1/16,16:216762 PCB 1016/1242 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16/16:216762 PCB 1221 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11n6/16:216762 PCB 1232 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16/16:216762 PCB 1248 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16/16:216762 PCB 1254 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16/16:216762 PCB 1260 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16/16:216762 PCB 1242 ND 0.5 ug/L 8082A 11%07116:213422 8092 11!16n6:21676'- EPA 8270 2-Fluorobiphenyl# 56.6 26-97* % 3520 11/07/16:213448 8270C 11/23/16:217176 11 2-Fluorophenol� 59.4 0-114* % 3520 11/07/16:213448 8270C II'2316:217176 Amended Page 13 of 42 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empress Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 December 2, 2016 Lab ID : SP 1613229-003 Description : Raw Influent Customer ID 2-11369 Sample Result- Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8270 Nitrobenzene-d5# 63.8 22-92* % 3520 11/07/16:213448 8270C 11/23/16:217176 Phenol-d6$ 67.5 0-105* % 3520 11/07/16:213448 8270C 11/23/16:217176 p-Terphenyl-dW 34.6 20-118* % 3520 11/07/16:213448 8270C 11/23/16:217176 2,4,6-Tribromophenol$ 67.4 0-133* % 3520 11/07/16:213448 8270C 11/23/16:217176 Acenaphthene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Acenaphthylene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Aniline ND ll* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Anthracene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 1,2-Diphenylhydrazine ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzidine ND ll* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzo(a)anthracene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzo(b)fluoranthene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzo(k)fluoranthene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzo(g,h,i)perylene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzo(a)pyrene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzoic Acid 149 26* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzylalcohol 22.8 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4-Bromophenylphenylether ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Butylbenzylphthalate ND l l* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 bls(2- ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23116:217176 Chloroethoxy)methane bis(2-Chloroethyl)ether ND 5.3* ug/L 3520 11/07/16:213449 8270C 11/23/16217176 bis(2-Chloroisopropyl)ether ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 bis(2-Ethylhexyl)phthalate ND 53* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4-Chloroaniline ND l l* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4-Chloro-3-methylphenol ND ll* ug/L 3520 11107/16:213448 8270C 11/23/16:217176 2-Chloronaphthalene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2-Chlorophenol ND l 1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4-Chlorophenylphenylether ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Chrysene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Dibenzo(a,h)anthracene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Dibenzofuran ND I1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Di-n-butylphthalate ND l l* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 1,2-Dichlorobenzene ND 5.3* ug/L 3520 11107/16:213448 8270C 11/23/16:217176 1,3-Dichlorobenzene ND 5.3* ug/L 3520 11/07/16`:213448 8270C 11/23/16:217176 1,4-Dichlorobenzene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 3,3'-Dichlorobenzidine ND ll* ug/L 3520 11107/16:213448 8270C 11/23/16217176 2,4-Dichlorophenol ND l l* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Diethylphthalate ND 5.3* ug/L 1 1 3520 11107/16:213448 8270C 11/23/16:217176 Amended Page 14 of 42 December 2;2'016 Lab ID : SP 1613229-003 Description : Raw Influent Customer ID 2-11369 Sample Result- Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/11) Method Date/ID EPA 8270 2,4-Dimethylphenol ND l l* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Dimethylphthalate ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16217176 4,6-Dinitro-2-methylphenol ND l l* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,4-Dinitrophenol ND 26* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,4-Dinitrotoluene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,6-Dinitrotoluene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Di-n-octylphthalate ND 5.3* ug/L 3520 11107/16:213448 8270C 11/23/16:217176 Fluoranthene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 ` Fluorene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Hexachlorobenzene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Hexachlorobutadiene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Hexachlorocyclopentadiene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Hexachloroethane ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Indeno(1,2,3-c,d)pyrene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16217176 Isophorone ND 5.3* ug/L 3520 11/07116:213448. 8270C 11/23/16:217176 2-Methylnaphthalene ND 53* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2-Methylphenol ND ll* ug/L 3520 11107/16:213448 8270C 11/23/16:217176 3-and 4-Methylphenol 37.1 11* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Naphthalene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2-Nitroanaline ND ll* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 3-Nitroanaline ND l l* ug/L 3520 11/07/16:213449 8270C 11/23/16:217176 4-Nitroanaline ND ll* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Nitrobenzene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23116:217176 2-Nitrophenol ND l l* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4-Nitrophenol ND l l* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 N-Nitrosodimethylamine ND l l* ug/L 3520 11107/16:213448 8270C 11/23/16:217176 N-Nitrosodiphenylamine ND 5.3* ug/L 3520 11/07/16213448 8270C 11/23/16:217176 N-Nitrosodi-n-propylamine ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Pentachlorophenol ND 53* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Phenanthrene ND 5.3* ug/L 3520 11/07/16213448 8270C 11/23/16:217176 Phenol 22.4 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Pyrene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 1,2,4-Trichlorobenzene ND 5.3* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,4,5-Trichlorophenol ND l l* ug/L 3520 11/07/16:213448 82706 11/23/16:217176 2,4,6-Trichlorophenol ND 5.3* ug/L 3520 11/07/16:213448` 8270C 11/23/16:217176 Pyridine ND 53* 1 ug/L 3520 11/07/16:213448 8270C II/23/16:217176 ND=Non-Detected.PQL=Practical Quantitation Limit.$Surrogate.*PQL adjusted for dilution. Amended Page 15 of 42 December 2, 2016 Lab ID : SP 1613229-004 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : November 1,2016-00:00 South Lake Tahoe,CA 96150 Sampled By : Ops Received On : November 3, 2016-10:15 Matrix : Waste Water Description : Final Effluent Project : Priority Pollutants Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8081 Tetrachloro-m-x lent 24.2 15-143 % 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Aldrin ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Alpha BHC ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Beta BHC ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Delta BHC ND 0.05 ug/L 608/8081 11/04116:213374 608/8081 11/09/16:216312 Gamma BHC(Lindane) ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Chlordane ND 0.5 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 alpha-Chlordane ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 gamma-Chlordane ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09116:216312 4,4-DDD ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 4,4-DDE ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 4,4-DDT ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 I1/09/16:216312 Dieldrin ND 0.05 ug/L 608/8081 ll/044:213374 608/8081 11/09/16:216312 Endosulfan I ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 I1/09/16:216312 Endosulfan II ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Endosulfan Sulfate ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Endrin ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:21631- Endrin Aldehyde ND 0.05 ug/L 608/8081 11104/16:213374 608/8081 11/09/16:216312 Endrin Ketone ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Heptachlor ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Heptachlor Epoxide ND 0.05 ug/L 608/8081 11/04/16:213374 608/8081 11/09/16:216312 Methoxychlor ND 0.1 ug/L 608/9081 11/04/16:213374 608/8081 11/09/16:2163L' Toxa)hone ND 0.5 ug/L 608 ROS I I I 0-1 16:21,;-4 608/8081 11 09 16:216312 EPA 8082 Tetrachloro-m-X lent 54.7 26-102 % 8082A 11/07/16:213422 8082 11/16/16:216762 PCB 1016/1242 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16/16:216762 PCB 1221 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16116:216762 PCB 1232 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16/16:216762 PCB 1248 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16116:216762 PCB 1254 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16116:216762 PCB 1260 ND 0.5 ug/L 8082A 11/07/16:213422 8082 11/16116:216762 PCB 1242 ND 0.5 ug/L 8082A 11'07!16:213422 8082 11'16'16:216762 EPA 8270 2-Fluorobiphenylt 37.1 26-97* % 3520 11/07/16:2I3448 8270C 1 /23/16:217176 2-Fluoro henol# 34.0 0-114* % 3520 110716:21344s 8270C 11/23/16:217176 Amended Page 16 of 42 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 December 2, 2016 Lab ID : SP 1613229-004 Description : Final Effluent Customer ID 2-11369 Sample Result- Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/lD I Method Date/lD EPA 8270 Nitrobenzene-d5$ 26.4 22-92* % 3520 11/07/16:213448 8270C 11/23/16:217176 Phenol-d6$ 20.1 0-105* % 3520 11/07116:213448 8270c 11/23/16:217176 p-Terphenyl-dl4$ 58.4 20-118* % 3520 11/07/16:213448 8270C 11/23/16217176 2,4,6-Tribromo henol$ 75.1 0-133* % 3520 11/07/16:213448 8270C 11/23/16:217176 Acenaphthene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Acenaphthylene ND 5.1* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 Aniline ND 110* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Anthracene ND 5.1* ug/L 3520 11107/16:213448 8270c 11/23/16:217176 1,2-Diphenylhydrazine ND 5.1* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 Benzidine ND 10* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 Benzo(a)anthracene ND 5.1* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 Benzo(b)fluoranthene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzo(k)fluoranthene ND 5.1* ug/L 3520 11/07/16:213448 8270c 11123/16:217176 Benzo(g,h,i)perylene ND 5.1* ug/L 3520 11107/16:213448 8270c 11/23/16:217176 Benzo(a)pyrene ND 5.1* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 Benzoic Acid ND 25* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Benzylalcohol ND 5.1* ug/L 3520 I1/07/16:213448 8270c 11/23/16:217176 4-Bromophenylphenylether ND 5.1* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 Butylbenzylphthalate ND 10* ug/L 3526 11/07/16:213448 8270c 11/23/16:217176 bis(2- Chloroethoxy)methane ND 5.1* ug/L 3520 11/07/16:213448 8270c II/23/16:217176 bis(2-Chloroethyl)ether ND 5.1* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 bis(2-Chloroisopropyl)ether ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 bis(2-Ethylhexyl)phthalate ND 51* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4-Chloroaniline ND 10* -ug/L 3520 11/07/16213448 8270C 11/23/16:217176 4-Chloro-3-methylphenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2-Chloronaphthalene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2-Chlorophenol ND 10* ug/L 3520 11/07/16213448 8270C 11/23/16:217176 4-Chlorophenylphenylether ND 5.1* ug/L 3520 ' 11/07/16:213448 8270C 11/23/16:217176 Chrysene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Dibenzo(a,h)anthracene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Dibenzofuran ND 10* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 Di-n-butylphthalate ND 10* ug/L 3520 11/0'7/16:213448 8270C 11/23/16:217176 1,2-Dichlorobenzene ND 5.1* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 1,3-Dichlorobenzene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 1,4-Dichlorobenzene ND 5.1* ug/L 3520 11/07/16:213448 8270c 11/23/16:217176 3,3'-Dichlorobenzidine ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,4-Dichlorophenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Diethylphthalate ND 5.1* ug/L 3520 11l07/16:213448 8270c 11/23/16:217176 Amended Page 17 of 42 December 2, 2016 Lab ID : SP 1613229-004 Description : Final Effluent Customer ID 2-11369 Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8270 2,4-Dimethylphenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Dimethylphthalate ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4,6-Dinitro-2-methylphenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,4-Dinitrophenol ND 25* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,4-Dinitrotoluene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,6-Dinitrotoluene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Di-n-octylphthalate ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Fluoranthene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Fluorene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Hexachlorobenzene ND 5.1* ug/L 3520 11107/16:213448 8270C 11/23/16:217176 Hexachlorobutadiene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Hexachlorocyclopentadiene ND 5.1* ug/L 3520 I1/07/16:213448 8270C 11/23/16:217176 Hexachloroethane ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Indeno(1,2,3-c,d)pyrene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Isophorone ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23116:217176 2-Methylnaphthalene ND 51* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2-Methylphenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 3-and 4-Methylphenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Naphthalene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2-Nitroanaline ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 3-Nitroanaline ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4-Nitroanaline ND 10* ug/L 3520 11/07116:213448 8270C 11/23116:217176 Nitrobenzene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2-Nitrophenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 4-Nitrophenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 N-Nitrosodimethylamine ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 N-Nitrosodiphenylamine ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 N-Nitrosodi-n-propylamine ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Pentachlorophenol ND 51* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Phenanthrene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Phenol ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 Pyrene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 1,2,4-Trichlorobenzene ND 5.1* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,4,5-Trichlorophenol ND 10* ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 2,4,6-Trichlorophenol ND 5.1* ug/L 3520 11/07/16:213448 8270C 11123/16:217176 Pyridine ND 1 51* 1 ug/L 3520 11/07/16:213448 8270C 11/23/16:217176 ND=Non-Detected.PQL=Practical Quantitation Limit.$Surrogate.*PQL adjusted for dilution. Amended Page 18 of 42 ENVIRONMENTALML . , Analytical Chemists December 2, 2016 Lab ID : SP 1613229-005 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : November 1, 2016-00:00 South Lake Tahoe, CA 96150 Sampled By : Ops Received On : November 3, 2016-10:15 Matrix : Sludge Description : Centrifuge Cake Project : Priority Pollutants Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 4-Bromofluorobenzenet 68.2 48-110* % 5030B 11/14/16:213848 8260E 11/14/16:216761 Dibromofluoromethane$ 92.6 48-132* % 5030B 11/14/16:213848 8260B 11/14/16:216761 1,2-Dichloroethane-d4# 71.1 48-123* % 5030B 11/14/16:213848 8260B 11/14/16:216761 Toluene-d8t 79.2 49-124* % 5030B 11/14/16:213848 8260E 11/14/16:216761 Acetone 70000 10000* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Acrolein ND 2500* ug/kg 5030B 11/14/16:213848 8260E 11/14/16:216761 Acrylonitrile ND 2500* ug/kg 5030B 11/14/16:213848 8260E 11/14/16:216761 Benzene ND 120* ug/kg 5030B 11/14/16:213848 8260E 11/14/16:216761 Bromobenzene ND 120* ug/kg 503013 11/14/16:213848 8260E 11/14/16:216761 Bromochloromethane ND 120* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 Bromodichloromethane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Bromoform ND 120* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 Bromomethane ND 250* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 tert-Butanol ND 500* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 2-Butanone(MEK) 32900 2500* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 n-Butylbenzene ND 120* ug/kg 5030E 11/14/16:213848 8260E 11/14/16:216761 sec-Butylbenzene ND 120* ug/kg 5030E 11/14/16:213848 8260E 11/14/16:216761 tert-Butylbenzene ND 120* ug/kg 5030B 11/14/16:213848 8260E 11/14/16:216761 Carbon Disulfide ND 620* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Carbon Tetrachloride ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Chlorobenzene ND 120* ug/kg 5030E 11/14/16:213848 8260E 11/14/16:216761 Chloroethane ND 250* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Chloroform ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Chloromethane ND 500* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 2-Chlorotoluene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 4-Chlorotoluene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Dibromochloromethane ND 120* ug/kg 5030E 11/14/16:213848 8260E 11/14/16:216761 Dibromomethane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,2-Dichlorobenzene ND 120* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 1,3-Dichlorobenzene ND 120* ug/kg 5030B 11/14/16:213848 8260E 11/14/16:216761 1,4-Dichlorobenzene ND 120* ug/kg 5030B 11/14/16:213848 8260B ll/M16:216761 Dichlorodifluoromethane ND 250* ug/kg 5030B 11/14/16:213848 8260E II/W16:216761 1,1-Dichloroethane ND 120* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 1,2-Dichloroethane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,1-Dichloroethylene ND 120* u k 5030B 11/14/16:213848 8260E 11/14/16:216761 Amended Page 19 of 42 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empress Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 December 2, 2016 Lab ID : SP 1613229-005 Description : Centrifuge Cake Customer ID 2-11369 Sample Result- Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 cis-1,2-Dichloroethylene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 trans-1,2-Dichloroethylene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,2-Dichloropropane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,3-Dichloropropane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16216761 2,2-Dichloropropane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,1-Dichloropropene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 cis-1,3-Dichloropropene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 trans-1,3-Dichloropropene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Di-isopropyl ether(DIPE) ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Ethyl Benzene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Ethyl tert-butyl ether ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 (ETBE) Hexachlorobutadiene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 2-Hexanone ND 620* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Isopropylbenzene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 p-Isopropyltoluene ND 120* ug/kg 5030B 11/14/16213848 8260B 11/14/16:216761 Methyl tert-butyl ether ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 (MTBE) 4-Methyl-2-pentanone ND 620* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 (MIBK) Methylene Chloride ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Naphthalene ND 500* ug/kg 5030B 11/14/16:213849 8260B 11/14/16:216761 n-Propylbenzene ND 120* ug/kg 5030E 11/14/16:213848 8260E 11/14/16:216761 Styrene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14116:216761 tert-Amyl methyl ether ND 120* ug/kg 5030B 11/14/16:213948 8260B 11/14/16:216761 (TAME) 1,1,1,2-Tetrachloro ethane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,1,2,2-Tetrachloro ethane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Tetrachloroethylene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Toluene 236 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,2,3-Trichlorobenzene ND 250* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,2,4-Trichlorobenzene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 1,1,1-Trichloroethane ND 120* ug/kg 5030B 11114/16:213848 8260B 11/14/16:216761 1,1,2-Trichloroethane ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Trichloroethylene ND 120* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Trichlorofluoromethane ND 250* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 1,2,4-Trimethylbenzene ND 120* ug/kg 5030E 11/14/16:213848 8260B 11/14/16:216761 1,3,5-Trimethylbenzene ND 120* ug/kg 5030B 11/14116:213848 8260B 11/14/16:216761 Vinyl Acetda e ND 750* ug/kg 5030B 11/14/16:213848 8260B 11/14/16:216761 Vinyl Chloride ND 250* ug/kg 5030B 11/14116:213848 8260B 11/14/16:216761 Xylenes ND -- ug/kg 5030B 11/14/16:213849 8260E 11/14/16:216761 Xylenes m,p ND 120* ug/kg 5030B 11/14/16:213848 8260E 11/14/16:216761 Amended Page 20 of 42 December 2, 2016 Lab ID : SP 1613229-005 Description : Centrifuge Cake Customer ID 2-11369 _I � Sample Result-Organic " Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 Xylenes o ND 120* 1 ug/kg 5030a 11/14/16:213848 8260E 11/14116:216761 EPA 8270 2-Fluorobiphenyl' 130 0-106* % 8270C 11/14/16:213741 8270C 11/23/16:217176 2-Fluorophenol' 158 0-115* % 8270C 11/14/16:213741 8270C 11/23/16:217176 Nitrobenzene-d5' 105 0-151* % 8270C 11/14/16213741 8270C 11/23/16:217176 Phenol-d6' 247 0-124* % 8270C 11/14/16:213741 8270C 11/23/16:217176 p-Terphenyl-d14' 134 0-101* % 8270C 11/14/16:213741 8270C 11/23/16:217176 2,4,6-Tribromo henol' 110 0-129* %- 8270C 11/14/16:213741 8270C 11/23/16:217176 Acenaphthene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Acenaphthylene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Aniline ND 5* mg/kg 8270C 11/14/16213741 8270C 11/23/16:217176 Anthracene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 1,2-Diphenylhydrazine ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Benzidine ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Benzo(a)anthracene ND 5* mg/kg 8270C Ii/14/16:213741 8270C 11/23/16:217176 Benzo(b)fluoranthene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Benzo(k)fluoranthene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Benzo(g,h,i)perylene ND 5* mg/kg 8270C 11/14/16:21374i 8270C 11/23/16:217176 Benzo(a)pyrene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Benzoic Acid ND 5* mg/kg 8270C 11/14/16:213741' 8270C 11/23/16:217176 Benzylalcohol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23116:217176 4-Bromophenylphenylether ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Butylbenzylphthalate ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23116:217176 bis(2- ethoxy)methane ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Chlorbis(2-Chloroethyl)ether ND S* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 bis(2-Chloroisopropyl)ether ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 bis(2=Ethylhexyl)phthalate ND 10* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 4-Chloroaniline ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 4-Chloro-3-methylphenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2-Chloronaphthalene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2-Chlorophenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 4-Chlorophenylphenylether ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Chrysene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Dibenzo(a,h)anthracene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Dibenzofuran ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Di-n-butylphthalate ND ` 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16217176 1,2-Dichlorobenzene ND 5* mg/kg 9270C 11/14/16:213741 8270C 11/23/16:217176 1,3-Dichlorobenzene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16217176 Amended' Page 21 of 42 December 2, 2016 Lab ID : SP 1613229-005 Description : Centrifuge Cake Customer ID 2-11369 Sample Result- Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8270 1,4-Dichlorobenzene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16217176 3,3'-Dichlorobenzidine ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2,4-Dichlorophenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Diethylphthalate ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2,4-Dimethylphenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Dimethylphthalate ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 4,6-Dinitro-2-methylphenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2,4-Dinitrophenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16217176 2,4-Dinitrotoluene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2,6-Dinitrotoluene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Di-n-octylphthalate ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Fluoranthene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Fluorene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Hexachlorobenzene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Hexachlorobutadiene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Hexachlorocyclopentadiene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Hexachloroethane ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Indeno(1,2,3-c,d)pyrene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23116:217176 Isophorone ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2-Methylnaphthalene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2-Methylphenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 3-and 4-Methylphenol 12.5 10* mg/kg 8270C 11/14116:213741 8270C 11/23/16:217215 Naphthalene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2-Nitroanaline ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 3-Nitroanaline ND 5* mgIg 8270C 11/14/16:213741 8270C 11/23/16:217176 4-Nitroanaline ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Nitrobenzene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 2-Nitrophenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 4-Nitrophenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 N-Nitrosodimethylamine ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 N-Nitrosodiphenylamine ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 N-Nitrosodi-n-propylamine ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Pentachlorophenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Phenanthrene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Phenol 9.40 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Pyrene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 1,2,4-Trichlorobenzene ND 5* mg/kg 8270C 11/14/16:213741 8270C 11123/16217176 2,4,5-Trichlorophenol ND 5* 1 mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Amended Page 22 of 42 December 2, 2016 Lab ID : SP 1613229-005 Description : Centrifiige Cake Customer ID 2-11369 Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8270 2,4,6-Trichlorophenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 Pyridine ND 5* mg/kg 8270C 11114/16:213741 8270C 11/23/16:217176 2,3,4,6-Tetrachlorophenol ND 5* mg/kg 8270C 11/14/16:213741 8270C 11/23/16:217176 ND=Non-Detected.PQL=Practical Quantitation Limit.+Surrogate. PQL adjusted for dilution. Amended Page 23 of 42 ENVIRONMENTALFUL Analytical Chemists December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Organic 1,2,4-Trichlorobenzene 3520 11/07/16:213448JOM Blank ug/L ND <1 LCS ug/L 10.00 70.0% 3-97 BS ug/L 10.00 t2.4% 2-121 BSD ug/L 10.00 144% 2-121 BSRPD ugfL 20.00 13.8% 544 1.2-Dichlorobenzene 3520 11/07/16:213448JOM Blank a ND <1 1.2-Di hen lh drazine 3520 11/07/16:213448JOM Blank u L V D <1 1.3-Dichlorobenzene 3520 11/07/16:213448JOM Blank ug/L IN <1 1.4-Dichlorobenzene 3520 11/07/16:213448JOM Blank ug/L ND <1 LCS ug/L 10.00 65.5% 5-96 BS ug/L 10.00 90.4% 1-112 BSD ug/L 10.00 81.8% 1-112 BSRPD ue"L 20.00 10.0% <39 2,4,5-Trichloro hcnol 3520 11/07/16:213448JOM Blank uW,L ND <2 2,4,6-Tribromophenol 3520 11/07/16:213448JOM Blank u_I_ 20.00 73.9% 0-133 LCS ug,L 20.00 77.6% 0-133 BS ug/L 20.00 81.6% N/A BSD ugfL 20.00 74.2% N/A BSRPD ugfL 20.011 9.6% 4519 2,4,6-Trichloro henol 3520 11/07/16:213448JOM Blank a ND <1 2,4-Dichloro henol 3520 11/07/16:213448JOM Blank ug/L ND <2 2.4-Dimeth I henol 3520 11/07/16:213448JOM Blank a ND <2 ',3-Dinitro henol 3520 11/07/16:213448JOM Blank ug/L ND '.3-Dinitrotoluene 3520 11/07/16:213448JOM Blank ug/L ND I LCS ug(L 10.00 83.4% 7-118 BS ug/L 10.00 87.8% 26-107 BSD ug/1- 10.00 73.3% 26-107 BSRPD u 20.00 17.9% <_) ',6-Dinitrotoluene 3520 11/07/16:213448JONI Blank ugfL ND I '-Chlorophenol 3520 11/07/16:213448JON1 Blank U91L ND <2 LCS ug/L 20.00 86.7% 0-108 BS ug/L 20.00 89.1% 10-110 BSD ug/L 20.00 86.3% 10-1 l0 BSRPD ug/L 20.00 3.2% <54 _-Fluorobiphenyl 3520 11/07/16:213448JOM Blank ug/L 10.00 76.2% 26-97 LCS ug/L 10.00 79.0% 26-97 BS ug/L 10.00 80.0% 30-115 BSD ug/L 10.00 70.4% 30-115 BSRPD ue L 20.00 12.7% <35 '-Fluorophenol 3520 11/07/16:213448JOM Blank ug/L 20.00 72.3% 0-114 LCS ug/L 20.00 76.8% 0-114 BS ue'L 20.00 77.6% N/A BSD ug;L 20.00 75.3% N/A BSRPD ug/L 20.00 3.0% <41 -Meth lna hthalene 3520 11107/16:213448JOM Blank ugfL ND <10 -Meth 1 henol 3520 11/07/16:213448JOM Blank u ND <2 2-Nitroaniline 3520 11/07116:213448JOM Blank UgIL ND <2 2-Nitro phenol 3520 11/07/16:213448JOM Blank ug/L ND ? 3.3-Dichlorobenzidine 3520 11/07/16:213448JOM Blank uu I ND 3-Nitroaniline 3520 11/07/16:213448JOM Blank uc I ND 6-Dinitro-2-meth I henol 3520 11/07/16:213448JOM Blank u_ I ND Bromo hen 1 hen lethcr 3520 11/07/16:213448JOM Blank u_ I ND I Chloro-3-methylphcno1 3520 11/07/16:213448JOM Blank u__ I ND <2 LCS ue L 20.00 91.4% 5-108 BS 'L 20.00 92.2% 19-103 u Amended Page 24 of 42 Corporate Offices&Laboratory Office 8,Laboratory Office&Laboratory Office&Laboratory Office 3 Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No 1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID ) Type Units Conc. QC Data DQO Note Organic Chloro-3-mcthylphenol 3520 11/07/16:213448JOM BSD ug/L 20.00 80.9% 19-103 BSRPD ug/L 20.00 13.1% _<37 Chloroanilinc 3520 11/07/16:213448JOM Blank ug/L ND <2 Meth 1phenol 3520 11/07/16:213448JOM Blank ug/L ND <2 Nitroaniline 3520 11/07/16:213448JOM Blank ug/L ND <2 Nitrophenol 3520 11/07/16:213448JOM Blank ug/L ND <2 LCS ug/L 20.00 101% 0-133 BS ug/L 20.00 109% 0-119 BSD ug/L 20.00 86.9% 0-119 BSRPD ug/L 20.00 22.8% 1 <31 cenaphthene 3520 11/07/16:213448JOM Blank ug/L. ND <1 LCS ug/L -10.00 91.4% 0-115 BS ug/L. 10.00 93.9% 15-115 BSD ug/LI 10.00 86.1% 15-115 BSRPD ug/L 20.00 8.7% <39 cena hth lone 3520 11/07/16:213448JOM Blank uglL ND <1 Aniline 3520 11/07/16:213448JOM Blank ug/L ND <2 thraccnc 3520 11/07/16:213448JOM Blank ug/L. ND <1 Benzidine 3520 11/07/16:213448JOM Blank ug/L. ND <2 Benzo(a)anthracene 3520 11/07/16:213448JOM Blank ug/L ND <1 Benzo(a)pyrene 3520 11/07/16:213448JOM Blank ug/L ND <1 enzo(b)fluoranthene 3520 11/07/16:213448JOM Blank ug/L ND <1 cnzo( ,h,i)pe lone 3520 11/07/16:213448JOM Blank ug/L ND <1- Benzo(k)fluoranthene 3520 11/07/16:213448JOM Blank ug/L ND <1 Benzoic Acid 3520 11/07/16:213448JOM Blank ug/L ND <5 Ben ]alcohol 3520 11/07/16:213448JOM Blank ug/L ND <1 is(2-Chloroethox )methane 3520 11/07/16:213448JOM Blank ug/L ND <1 is(2-Chlorocth I)cther 3520 11/07/16:213448JOM Blank u ND <1 is(2-Chloroisopropyl)ether 3520 11/07/16:213448JOM Blank ug/L ND <1 is(2-Eth (hex ()phthalate 3520 11/07/16:213448JOM Blank ug/L 9.4 10 Butylbcnzylphtlialatc 3520 11/07/16:213448JOM Blank ug/L ND <2 Chlorona hthalene 3520 11/07/16:213448JOM Blank ug/L ND <1 Chloro hcnyl hcn lether 3520 11/07/16:213448JOM Blank ug/L ND <1 Chrysene 3520 11/07/16:213448JOM Blank ug/L ND <1 Dibenzo(a,h)anthmcene 3520 I1/07/16:213448JOM Blank ug/L ND <1 Dibenzofuran 3520 11/07/16:213448JOM Blank ug/L ND <2 Dieth 1phthalatc 3520 11/07/16:213448JOM Blank ug/L ND <1 Dimctlt 1phthalatc 3520 11/07/16:213448JOM Blank u ND <1 Di-n-butylphthalate 3520 11/07/16:213448JOM Blank ug/L ND <2 Di-n-oct 1 hthalate 3520 11/07/16:213448JOM Blank ugIL ND <1 luoranthcne 3520 11/07/16:213448JOM Blank ug/L ND <1 ]uorenc 3520 11/07/16:213448JOM Blank ug/L ND <1 Hexachlorobenzcne 3520' 11/07/16:213448JOM Blank ug/L ND <1 exachlorobutadiene 3520 11/07/16:213448JOM Blank ugfL ND <1 exachloroc clopentadiene 3520 11107/16:213448JOM Blank u ND <1 cxachloroethane 3520 11/07/16:213448JOM Blank ug/L ND <1 Indcno(1,2,3-c,d) yrcne 3520 11/07/16:213448JOM Blank ug/L ND <1 Isophorone 3520 11/07/16:213448JOM Blank ugfL ND <1 Naphthalene 3520 11/07/16:213448JOM Blank ug/L ND <1 itrobcnzcnc 3520 11/07/16:213448JOM Blank ugfL ND <1 itrobcnzcnc-d5 3520 11/07/16:213448JOM Blank ug/L 10.00 71.9% 22-92 LCS ug/L 10.00 72.9% 22-92 BS ug/L 10.00 74.0% N/A BSD I u 10.00 j 65.8% N/A Amended Page 25 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Organic itrobenzenc-d5 3520 11/07/16:213448JOM BSRPD ug/L 20.00 11.7% <35 Nitrosodimethylamine 3520 11/07/16:213448JOM Blank ug/L ND <2 Nitrosodi-N-propylamine 3520 11/07/16:213448JOM Blank ug/L ND <1 LCS ug/L. 10.00 94.7% 0-136 BS ug/L. 10.00 94.6% 0-142 BSD ug/L 10.00 83.2% 0-142 BSRPD ug/L 20.00 12.9% <38 Nitrosodiphenylaminc 3520 11/07/16:213448JOM Blank ug/L ND <1 Pentachlorophenol 3520 11/07/16:213448JOM Blank ug/L ND <10 LCS ug/L 20.00 84.8% 6-119 BS ug/L 20.00 88.5% 24-102 BSD ug/L 20.00 74.1% 24-102 BSRPD ug/L 20.00 2.9 <10 Phenanthrene 3520 11/07/16:213448JOM Blank ug/L ND <1 Phenol 3520 11/07/16:213448JOM Blank ug/L ND <1 LCS ug/1. 20.00 83.3% 0-106 BS ug/L 20.00 83.4% 0-127 BSD ug/L 20.00 72.1% 0-127 BSRPD ug/L 20.00 14.5% <89 Phenol-d6 3520 11/07/16:213448JOM Blank ug/L 20.00 71.9% 0-105 LCS ug/L 20.00 71.0% 0-105 BS ug/L 20.00 74.1% N/A BSD ug/L 20.00 66.3% N/A BSRPD ug/L 20.00 11.1% <51 Terphenyl-dl4 3520 11/07/16:213448JOM Blank ug/L. 10.00 93.8% 20-118 LCS ug/L 10.00 93.3% 20-118 BS ug/L 10.00 92.7% N/A BSD ug/L 10.00 90.9% N/A BSRPD ug/L 20.00 2.0% 542 Pyrene 3520 11/07/16:213448JOM Blank ug/L ND <1 LCS ug/L 10.00 97.1% 0-151 BS ug/L 10.00 101% 45-106 BSD ug/L 10.00 95.1% 45-106 BSRPD ug/L 20.00 5.7% <40 Pyridine 3520 11/07/16:213448JOM Blank ug/L. ND <10 1,1,1,2-Tetrachloroethane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,1,1-Trichloroethane(TCA) 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,1,2,2-Tetrachloroethane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,1,2-Trichloroethane 5030B 11/10/16:213819VRG Blank ug/1. ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,1-Dichloroethane 5030B 11/10/16:213819VRG Blank ug/1. ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 I,1-Dichloroethylcne 5030B 11/10/16:213819VRG Blank ug/L. ND <0.5 LCS ug/L 25.00 75.4% 52-137 MS ug/L 25.00 80.7% 25-179 (SP 1613229-002) MSD ug/L. 25.00 10.6% 25-179 435 MSRPD ug/L 25.00 153% _<26 435 5030B 11/14/16:213848VRG Blank ug/kg ND <125 LCS ug/kg 1250 54.0% 0-135 MS ug/kg 1250 55.2% 0-251 (SP 1613229-005) MSD ug/kg 1250 51.5% 0-251 Amended Page 26 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Cone. QC Data DQO Note Organic 1,1-Dichloroethylene 5030B 11/14/16:213848VRG MSRPD ug/kg 1250 6.90/. <38.1 1,1-Dichloropropane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,2,3-Trichlorobenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <250 1,2,4-Trichlorobenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,2,4-Trimethylbenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,2-Dichlorobenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,2-Dichloroethane(EDC) 5030B 11/10116:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,2-Dichloroethanc-d4 5030B 11/10/16:213819VRG Blank ug/L 25.00 74.6% 58-166 LCS ug/L 25.00 78.1% 58-166 MS ug/L 25.00 77.8% 58-166 (SP 1613229-002) MSD ug/L 25.00 74.5% 58466 MSRPD u 25.00 4.3% 1 <20.0 5030B 11/14/16:213848VRG Blank ug/kg 1250 83.1% 48-123 LCS ug/kg 1250 73.1% 48-123 \ MS ug/kg 1250 79.3% 48-123 (SP 1613229-005) MSD ug/kg 1250 78.9% 48-123 MSRPD ug/kg 1250 0.6% <20.0 1,2-Dichloropropane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,3,5-Trimethylbenzene 5030B 11/10/16:213819VRG Blank ug/I. ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,3-Dichlorobenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,3-Dichloropropane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 1,4-Dichlorobenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 2-Dichloropropane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Butanone(MEK) 5030B 11/10/16:213819VRG Blank ug/L. ND <10 5030B 11/14/16:213848VRG Blank ug/kg ND <625 Chlorotoluene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Hexanone 5030B 11/10/16:213819VRG Blank ug/L ND <10 5030B 11/14/16:213848VRG Blank ug/kg ND <625 Bromofluorobenzene 5030B 11/10/16:213819VRG Blank ug/L 25.00 80.1% 79-119 LCS ug/L 25.00 79.2% 79-119 MS ug/L 25.00 80.1% 79-119 (SP 1613229-002) MSD ug/L 25.00 81.1% 79-119 MSRPD u 25.00 1.2% 1 <20.0 5030B 11/14116:213848VRG Blank ug/kg 1250 83.9% 48-110 LCS ug/kg 1250 77.2% 48-110 MS ug/kg 1250 65.7% 48-110 (SP 1613229-005) MSD ug/kg' 1250 64.9% 48-110 MSRPD ug/kg 1250 1.2% _<20.0 -Chlorotoluene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B I1/14/16:213848VRG Blank ug/kg ND <125 Methyl-2-pentanone(MIBK) 5030B I I/10/16:213819VRG Blank ug/L ND <10 Amended- Page 27 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Cone. QC Data DQO Note Organic Methyl-2-pentanonc(MIBK) 5030B 11/14/16:213848VRG Blank ug/kg ND <625 Acetone 5030B 11/10/16:213819VRG Blank ug/L ND <50 5030B 11/14/16:213848VRG Blank ug/kg ND <2500 crolcin 5030B 11/10/16:213819VRG Blank ug/L ND <50 5030B 11/14/16:213848VRG Blank ug/kg ND <2500 crylonitrile 5030B 11/10/16:213819VRG Blank ug/L ND <50 5030B 11/14/16:213848VRG Blank ug/kg ND <2500 Benzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 LCS ug/L 25.00 86.4% 60-134 MS ug/L 25.00 74.1% 47-169 (SP 1613229-002) MSD ug/L 25.00 82.0% 47-169 MSRPD I ug/L 25.00 10.2% 1 _<24 5030B 11/14/16:213848VRG Blank ug/kg ND <125 LCS ug/kg 1250 96.9% 77-164 MS ug/kg 1250 80.7% 21-162 (SP 1613229-005) MSD ug/kg 1250 76.2% 21-162 MSRPD ug/kg 1250 5.7% _<37.9 Bromobenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Bromochloromethane 5030B 11/10116:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 romodichloromethane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Bromofonn 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Bromomethane(Methyl Bromide) 5030B 11/10116:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <250 Carbon Disulfide 5030B 11/10/16:213819VRG Blank ug/L ND <20 5030B 11/14/16:213848VRG Blank ug/kg ND <625 Carbon Tetrachloride 5030B 11/10/16:213819VRG Blank ugfL ND <1 5030B 11/14/16:213848VRG Blank ug/kg ND <125 hlorobcnzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 LCS ug/L 25.00 98.0% 56-152 MS ug/L 25.00 79.9% 31-212 (SP 1613229-002) MSD ug/L 25.00 89.7% 31-212 MSRPD I ug/L 25.00 1 11.5% <27 5030B 11/14/16:213848VRG Blank ug/kg ND <125 LCS ug/kg 1250 131% 86-185 MS ug/kg 1250 112% 18-165 (SP 1613229-005) MSD ug/kg 1250 101% 18-165 MSRPD ug/kg 1250 10.3% <40.3 Chloroethane(Ethyl Chloride) 5030B 11/10/16:213819VRG Blank ug/L ND <1 5030B 11/14/16:213848VRG Blank I ug/kg ND <250 Chloroform 5030B 11/10/16:213819VRG Blank ug/I ND <1 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Chloromethane(Methyl Chloride) 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <500 cis-1,2-Dichloroethylenc 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 cis-1,3-Dichloropropene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Dibromochloromethane 5030B 11/10/16:213819VRG Blank ug/L ND <1 5030B 11/14/16:213848VRG Blank ug/kg ND <125 ibromofluromethane 5030B I I I/10/16:213819VRG Blank ug/L 1 25.00 115% 84-136 Amended Page 28 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Organic Dibromofluromethane 5030B 11/10/16:213819VRG LCS ug/I. 25.00 118% 84-136 MS ug/L 25.00 116% 86-127 (SP 1613229-002) MSD ug/L 25.00 117% 86-127 MSRPD ug/L 25.00 0.7% <20.0 5030B 11/14/16:213848VRG Blank ug/kg 1250 108% 48-132 LCS ug/kg 1250 100% 48-132 MS ug/kg 1250 84.4% 48-132 (SP 1613229-005) MSD ug/kg 1250 79.2% 48-132 MSRPD ug/kg 1250 6.4% <20.0 Dibromomethane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Dichlorodifluoromethane 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11114/16:213848VRG Blank ug/kg ND <250 Dichloromethane 5030B 11/10/16:213819VRG Blank ugfL ND <0.5 5030B 11/14/16:213848VRG Blank ugIkg ND <125 Ethyl tert-Butyl Ether 5030B 11/10/16:213819VRG Blank ug/L ND <2 5030B 11/14/16:213848VRG Blank ug/kg ND <125 thylbenzene 5030B II/10/16:213819VRG Blank u ND <0.5 5030B 11/14/16:213848VRG Blank u ND <125 Freon-II 5030B 11/10/16:213819VRG Blank ug/L ND <1 5030B 11/14/16:2I3848VRG Blank ug/kg ND <250 Hexachlorobutadiene 5030B 11/10/16:213819VRG Blank ugfL ND <0.5 5030B 11/14/16:213848VRG Blank u ND <125 Isopropyl Ether 5030B 11/10/16:213819VRG Blank u ND <5 5030B 11/14/16:213848VRG Blank u g ND <125 Isopropylbenzene 5030B 11/10116:213819VRG Blank ug/L. ND <0.5 5030B 11/14/16:213848VRG Blank uglkg ND <125 Methyl tcrt-Butyl Ether(MTBE) 5030B 11/10/16:213819VRG Blank ug/L ND <2 5030B 11/14/16:213848VRG Blank u ND <125 Naphthalene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B II/14/16:213848VRG Blank u ND <500 Butylbenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ugfkg ND <125 Propylbenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Isopropyltoluenc 5030B 11/10/16:213819VRG Blank u ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 see-Butylbenzene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ugfkg ND <125 Styrene 5030B II/10/16:213819,VRG Blank ug/L. ND <0.5 5030B I1/14/16:213848VRG Blank ugfkg ND <125 TAME 5030B 11/10/16:213819VRG Blank ugIL ND <5 5030B 11/14/16:213848VRG Blank ugfkg ND <125 crt-Butanol 5030B 11/10/16:213819VRG Blank ug/L ND <5 5030B 11/14/16:213848VRG Blank ugfkg ND <500 crt-Butylbenzcnc 5030B 11/10/16:213819VRG Blank u ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 etrachloroethylene(PCE) 5030B. 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ugfkg ND <125 Toluene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 LCS ug/L 25.00 87.3% 56-131 MS ug/L 25.00 72.4% 44-164 (SP 1613229-002) MSD ug/L 25.00 1 84.2% 1 44-164 Amended Page 29 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Cone. QC Data DQO Note Organic Toluene 5030B 11/10/16:213819VRG MSRPD ug/L 25.00 14.9% <30 5030B 11/14/16:213848VRG Blank ug/kg ND <125 LCS ug/kg 1250 107% 88-160 MS ug/kg 1250 127% 22-171 (SP 1613229-005) MSD ug/kg 1250 79.4% 22-171 MSRPD u 1250 38.8% <35.8 435 Toluene-d8 5030B 11/10/16:213819VRG Blank ug/L 25.00 98.0% 88-111 LCS ug/L 25.00 98.0% 88-111 MS ug/L 25.00 99.7% 88-111 (SP 1613229-002) MSD ug/L 25.00 98.9% 88-111 MSRPD ug/L 25.00 0.8% <20.0 5030B 11/14/16:213848VRG Blank ug/kg 1250 91.6% 49-124 LCS ug/kg 1250 89.3% 49-124 MS ug/kg 1250 75.8% 49-124 (SP 1613229-005) MSD ug/kg 1250 69.9% 49-124 MSRPD ug/kg 1250 8.0% <20.0 trans-1,2-Dichloroethylene 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 trans-l,3-Dichloropropene 5030B 11/10/16:213819VRG Blank ugIL ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <125 richloroethylcnc(TCE) 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 LCS ug/L 25.00 72.5% 61-123 MS ug[L 25.00 71.7% 41-167 (SP 1613229-002) MSD ug/L 25.00 71.9% 41-167 MSRPD ug/L 25.00 0.3% <32 5030B 11/14/16:213848VRG Blank ug/kg ND <125 LCS ug/kg 1250 90.7% 65-147 MS ug/kg 1250 77.0% 14-170 (SP 1613229-005) MSD ug/kg 1250 78.4% 14-170 MSRPD ug/kg 1250 1.7% <44.7 Vinyl Acetate 5030B 11/10/16:213819VRG Blank ug/L ND <10 5030B 11/14/16:213848VRG Blank ug/kg ND <750 Vinyl Chloride 5030B 11/10/16:213819VRG Blank ug/L ND <0.5 5030B 11/14/16:213848VRG Blank ug/kg ND <250 ylenes m,p 5030B 11/10/16:213819VRG Blank ug/L ND <2 5030B 11/14/16:213848VRG Blank ug/kg ND <125 ylencs o 5030B 11/10/16:213819VRG Blank ug/L ND <2 5030B 11/14/16:213848VRG Blank ug/kg ND <125 Idrin 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 62.4% 38-122 MS ug/L 0.4739 32.7% 26-126 (SP 1613301-009) MSD ug/L 0.4717 56.1% 26-126 MSRPD ug/L 0.4722 0.11 1 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 105% 85-115 CCV ug/L 50.00 109% 85-115 CCV ug/L 100.0 107% 85-115 CCV u 50.00 98.9% 85-115 Alpha BHC 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 61.2% 43-119 MS ug/L 0.4739 35.1% 48-124 435 (SP 1613301-009) MSD ug/L 0.4717 58.6% 48-124 MSRPD ug/L 0.4722 0.11 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 102% 85-115 CCV ug/L 50.00 108% 85-I 15 Amended Page 30 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Organic Alpha BHC 608/8081 11/09/16:216312SBL CCV ug/L 100.0 106% 85-1 l5 CCV ug/L . 50.00 102% 85-115 alpha-Chlordane 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 76.4% 37-125 MS ug/L 0.4739 41.6% 35-124 (SP 1613301-009) MSD ug/L 0.4717 66.8% 35-124 MSRPD ug/L 0.4722 46.1% <32 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 111% 85-115 CCV ug/L 50.00 115% 85-115 CCV ug/L 100.0 114% 85-115 CCV ug/L 50.00 101% 85-115 Beta BHC 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 78.2% 35-124 MS ug/L 0.4739 49.7% 50-123 (SP 1613301-009) MSD ug/L 0.4717 68.5% 50-123 MSRPD ug/L 0.4722 31.2% <15 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 113% 85-115 CCV ug/L. 50.00 121% 85-115 360 CCV ug/L 100.0 117% 85-115 360 CCV ug/L 50.00 118% 85-115 360 Chlordane 608/8081 11/04/16:213374JOM Blank ugfL ND <2 DD 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L. 0.5000 87.8% 38-129 MS ug/L 0.4739 45.9% 32-130 (SP 1613301-009) MSD ug/L 0.4717 73.6% 32-130 MSRPD ug/L 0.4722 45.9% <37 435 DE 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 86.7% 33-133 Ms ug/L 0.4739 3 9.1%' 13-133 (SP 1613301-009) MSD ug/L 0.4717 62.7% 13-133 MSRPD I ug/L 0.4722 0.11 <0.05 435 DDT 608/8081 11/04116:213374JOM Blank ug/L ND - <0.05 LCS ug/L 0.5000 62.1% 45-127 Ms ug/L 0.4739 42.2% 6-146 (SP 1613301-009) MSD ug/L 0.4717 69.0% 6-146 MSRPD u 0.4722 47.8% <16 435 Delta BHC 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 71 A% 38-132 Ms ug/L 0.4739 43.3% 45-132 435 (SP 1613301-009) MSD ugfL 0.4717 67.8% 45-132 MSRPD ugfL 0.4722 43.3% _<15 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 105% 85-115 CCV ug/L 50.00 109% 85-115 CCV ug/L 100.0 110% 85-115 CCV ug/L 50.00 109% 85-115 icofol 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 1.000 37.8% 0-295 MS ug/L 0.9479 40.8% 0-201 (SP 1613301-009) MSD ug/L. 0.9434 53.5% 0-201 MSRPD 1, ugIL 0.4722 26.5% <68 608/8081 11/09/16:216312SBL CCV ug/I, 200.0 97.0% 85-115 CCV ug/L 100.0 103% 85-115 CCV ug/1, 200.0 101% 85-115 CCV u 100.0 1000/ 85-115 Amended Page 31 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/HD Type Units Cone. QC Data DQO Note Organic Dieldrin 608/8081 11/04/16:213374JOM Blank ugIL ND <0.05 LCS ug/L 0.5000 32.0% 36-122 325 MS ug/L 0.4739 35.7% 49-118 435 (SP 1613301-009) MSD ug/L 0.4717 59.0% 49-118 MSRPD ugfL 0.4722 0.11 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 98.7% 85-115 CCV ug/L 50.00 104% 85-115 CCV ug/L 100.0 103% 85-115 CCV ug/L 50.00 89.7% 85-115 ndosulfan I 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 63.4% 10-174 MS ug/L 0.4739 37.5% 17-168 (SP 1613301-009) MSD ug/L 0.4717 62.0% 17-168 MSRPD ug/L 0.4722 0.11 <0.05 435 608/8081 11109/16:216312SBL CCV ug/I. 100.0 106% 85-115 CCV ug/L 50.00 112% 85-115 CCV ug/L 100.0 110% 85-115 CCV ug/L 50.00 99.9% 85-115 ndosulfan II 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L. 0.5000 75.2% 0-241 MS ug/L 0.4739 41.2% 0-291 (SP 1613301-009) MSD ug/L 0.4717 66.9% 0-291 MSRPD ug/L 0.4722 47.2% <24 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 110% 85-115 CCV ug/L 50.00 118% 85-115 360 CCV ug/L. 100.0 115% 85-115 CCV ug/L 50.00 103% 85-115 ndosulfan Sulfate 608/8081 11/04/16:213374JOM Blank ug/L. ND <0.05 LCS ug/L 0.5000 59.0% 34-131 MS ug/L 0.4739 38.7% 47-128 435 (SP 1613301-009) MSD ug/L 0.4717 63.8% 47-128 MSRPD u 0.4722 0.12 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 103% 85-115 CCV ug/L 50.00 111% 85-115 CCV ug/L 100.0 108% 85-115 CCV ug/L 50.00 99.8% 85-115 ndrin 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 1.9% 0-189 MS ug/L 0.4739 48.1% 43-132 (SP 1613301-009) MSD ug/L 0.4717 70.4% 43-132 MSRPD ug/L 0.4722 37.0% <30 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 101% 85-115 CCV ug/L 50.00 109% 85-115 CCV ug/L 100.0 124% 85-115 360 CCV u 50.00 115% 85-115 ndrin Aldehyde 608/8081 11/04/16:213374JOM Blank ug/I. ND <0.05 LCS ug/L 0.5000 75.0% 31-133 MS ug/L 0.4739 29.0% 16-116 (SP 1613301-009) MSD ug/L 0.4717 55.1% 16-116 MSRPD u 0.4722 0.12 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 107% 85-115 CCV ug/L 50.00 113% 85-115 CCV ug/L 100.0 107% 85-115 CCV u 50.00 90.1% 85-115 Amended Page 32 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Cone. QC Data DQO Note Organic Endrin Ketone 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 85.1% 34-150 MS ug/L 0.4739 38.4% 28-162 (SP 1613301-009) MSD ug/L 0.4717 65.1% 28-162 MSRPD ug/L 0.4722 0.13 50.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 103% 85-115 CCV ug/L 50.00 112% 85-115 CCV ug/L 100.0 105% 85-115 CCV u 50.00 85.4% 85-115 gamma-Chlordane 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 75.5% 36-125 MS ug/L 0.4739 40.8% 31-123 (SP 1613301-009) MSD ug/L 0.4717 65.9% 31-123 MSRPD ug/L 0.4722 46.5% <22 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 110% 85-115 CCV ug/L 50.00 115% 85-115 CCV ug/L 100.0 114% 85-115 CCV ug/L 50.00 101% 85-115 Heptachlor 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 33.0% 34-126 325 Ms ug/L 0.4739 33.9% 41-114 435 (SP 1613301-009) MSD ug/L. 0.4717 60.5% 41-114 MSRPD ug/L 0.4722 0.12 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 107% 85-115 CCV ug/L 50.00 116% 85-115 360 CCV ug/L 100.0 115% 85-115 CCV ug/L 50.00 110% 85-115 Heptachlor Epoxide 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L. 0.5000 69.2% 39-126 Ms ug/L. 0.4739 37.1% 45-122 435 (SP 1613301-009) MSD ug/L 0.4717 61.7% 45-122 MSRPD u 0.4722 0.11 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 104% 85-115 CCV ug/L 50.00 110% 85-115 CCV ug/L 100.0 107% 85-115 CCV ug/L 50.00 99.5% 85-115 Lindane 608/8081 11/04/16:213374JOM Blank ug/L ND <0.05 LCS ug/L 0.5000 64.2% 41-123 MS ug/L 0.4739 35.8% 46-127 435 (SP 1613301-009) MSD ug/L 0.4717 59.8% 46-127 MSRPD ug/L 0.4722 0.11 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 104% 85-115 CCV ug/L 50.00 109% 85-115 CCV ug/L 100.0 108% 85-115 CCV ug/L 50.00 104% 85-115 ethoxychlor 608/8081 11/04/16:213374JOM Blank ug/L ND <0.1 LCS ug(L 0.5000 36.5% 23-142 Ms ug/L 0.4739 41.9% 51-126 435 (SP 1613301-009) MSD ug/L. 0.4717 69.0% 51-126 MSRPD u 0.4722 0.13 <0.1 435 608/8081 11/09/16:216312SBL CCV ug/L 100.0 106% 85-115 CCV ug[L 50.00 118% 85-115 360 CCV ug/L 100.0 116% 85-115 360 CCV u L 50.00 108% 85-115 Amended Page 33 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/iD Type Units Cone. QC Data DQO Note Organic p-DDD 608/8081 11/09/16:216312SBL CCV ug/L 100.0 113% 85-115 CCV ug/L 50.00 120% 85-115 360 CCV ug/L 100.0 121% 85-115 360 CCV ugfL 50.00 109% 85-115 p-DDE 608/8081 11/09/16:216312SBL CCV ug/L 100.0 107% 85-115 CCV ug/L 50.00 111% 85-115 CCV ug/L 100.0 112% 85-115 CCV ug/L 50.00 100% 85-115 p-DDT 608/8081 11/09/16:216312SBL CCV ug/L 100.0 112% 85-115 CCV ug/L 50.00 115% 85-115 CCV ug/L 100.0 118% 85-115 360 CCV ug/L 50.00 97.0% 85-115 etrachloro-m-xylcne 608/8081 11/04/16:213374JOM Blank ug/L 0.5005 86.3% 15-143 LCS ug/L 0.5005 65.4% 15-143 MS ug/L 0.4744 36.1% 26-141 (SP 1613301-009) MSD ug/L 0.4722 51.9% 26-141 MSRPD ugfL 0.4722 0.074 <0.05 435 608/8081 11/09/16:216312SBL CCV ug/L. 100.1 96.8% 85-115 CCV ug/L 50.05 103% 85-115 CCV ug/L 100.1 98.7% 85-I 15 CCV ug/L 50.05 95.7% 85-115 oxaphcne 608/8081 11/04/16:213374JOM Blank ug/L ND <0.5 PCB 1016 8082 11l16/16:216762SBL CCV ug/L 1003 102% 70-130 CCV ug/L 501.5 107% 70-130 CCV ug/L 1003 106% 70-130 CB 1260 8082 11/16/16:216762SBL CCV ug[L 1000 96.4% 70-130 CCV ug/L. 500.0 97.3% 70-130 CCV ug/L 1000 89.2% 70-130 etrachloro-m-xylene 8082 11/16/16:216762SBL CCV ug/L. 300.3 98.4% 85-115 CCV ug/L 200.2 97.2% 85-115 CCV u 300.3 103% 85-115 PCB 1016/1242-1 8082A 11/07/16:213422JOM Blank ug/L ND <0.5 LCS ug/L 2.508 88.7% 36-134 BS ug/L 2.508 84.8% 36-134 BSD ug/L. 2.508 94.2% 36-134 BSRPD ug/L 0.5005 0.24 <0.5 PCB 1221-1 8082A 11/07/16:213422JOM Blank ug/L ND <0.5 PCB 1232-1 8082A 11/07/16:213422JOM Blank ug/L. ND <0.5 PCB 1242 8082A 11/07/16:213422JOM Blank ug/L ND <0.5 PCB 1248-1 8082A 11/07/16:213422JOM Blank ug/L ND <0.5 PCB 1254-1 8082A 11/07/16:213422JOM Blank ug/L ND <0.5 PCB 1260-1 8082A 11/07/16:213422JOM Blank ug/L ND <0.5 LCS ug[L 2.500 117% 39-I 19 BS ug/L. 2.500 104% 39-119 BSD ug/L. 2.500 127% 39-I 19 436 BSRPD I ug/L 0.5005 19.8% 1 528 etrachloro-m-xylene 8082A 11/07/16:213422JOM Blank ug/L 0.5005 68.3% 26-102 LCS ug/L. 0.5005 85.0% 26-102 BS ug/L 0.5005 77.8% N/A BSD ug/L. 0.5005 76.7% N/A BSRPD ug/L 0.5005 1.4% _<30.0 1,1,1,2-Tetrachloroethane 8260B 11/10/16:216732VRG CCV ug/L 25.00 87.1% 70-130 8260B 11/14/16:216761VRG CCV I ug/L 25.00 97.5% 70-130 I,1,1-Trichloroethanc(TCA) I 8260B 11/10/16:216732VRG CCV I ug/L 1 25.00 1 82.2% 1 70-130 Amended Page 34 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Constituent Method Date/ID Type Units, Conc.' QC Data DQO Note Organic 1,1,1-Trichloroclllanc(TCA) 8260B 11/14/16:216761VRG CCV ug/L 25.00 78.5% 70-130 1,1,2,2-Tetrachlorocthane 8260B 11/10/16:216732VRG CCV ug/L 25.00 74.7% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 71.1% 70-130 1,1,2-Trichloroethane 8260B 11/10/16:216732VRG CCV ug/L 25.00 99.9% 70-130 8260E 11/14/16:216761VRG CCV ug/L 25.00 83.8% 70-130 I,1-Dichloroethane 8260B 11/10/16:216732VRG CCV ug/L 25.00 128% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 93.6% 70-130 l 1,1-Dichloroethylenc 8260B 11/10/16:216732VRG CCV ug/L. 25.00 89.2% 80-120 8260B 11/14/16:216761VRG CCV ug/L 25.00 84.9% 80-120 1,1-Dichloropropane 8260B 11/10/16:216732VRG CCV ug/L 25.00 81.1% 70-130 8260B I1/14/16:216761VRG CCV ug/L 25.00 72.6% 70-130 1,2,3-Trichlorobenzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 130% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 173% 70-130 360 1,2,4-Trichlorobenzene 8260B 11/10/16:216732VRG CCV ug/L. 25.00 93.3% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 120% 70-130 1,2,4-Trimethylbenzenc 8260B 11/10/16:216732VRG CCV ug/L 25.00 90.4% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 98.0% 70-130 1,2-Dichlorobenzene 8260B 11/10116:216732VRG CCV ug/L 25.00 99.5% 70-130 8260B 11/14/16:216761VRG CCV ug/L. 25.00 99.6% 70-130 1,2-Dichloroethane(EDC) 8260B 11/10/16:216732VRG CCV ug/L 25.00 72.4% 70-130 8260B 11/14/16:216761VRG CCV ug/L. 25.00 71.8% 70-130 1,2-Dichloroethane-d4 8260B 11/10/16:216732VRG CCV ug/L" 25.00 74.8% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 78.8% 70-130 1,2-Dichloropropane 8260B 11/10/16:216732VRG CCV ug/L 25.00 99.1% 80-120 8260B 11/14/16:216761VRG CCV ug/L 25.00 81.8% 80-120 1,3,5-Trimethylbenzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 89.2% 70-130 8260B 11/14/16:216761VRG CCV ug/L. 25.00 96.8% 70-130 1,3-Dichlorobenzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 98.3% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 102% 70-130 1,3-Dichloropropane 8260B 11/10/16:216732VRG CCV ug/L. 25.00 82.6% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 85.5% 70-130 1,4-Dichlorobenzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 98.4% 70-130 8260B 11114/16:216761VRG CCV ug/L 25.00 97.2% 70-130 2-Dichloropropane 8260B 1 1/1 0/1 6 2 1 673 2VRG CCV ug/L 25.00 70.1% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 84.0% 70-130 -Butanone(MEK) 8260B 11/10/16:216732VRG CCV ug/L 100.0 88.2% 50-150 8260B 11/14/16:216761VRO CCV ug/L 80.00 56.7% 50-150 Chlorotoluene 8260B 11/10/16:216732VRG CCV ug/L. 25.00 87.3% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 93.1% 70-130 -Hcxanone 8260B 11/10/16:216732VRG CCV ug/L 100.0 70.8% 50-150 8260B 11/14/16:216761VRG CCV ug/L 80.00 57.0% 50-150 Bromofluorobenzcne(BFB) 8260B 11/10/16:216732VRG CCV ug/L 25.00 83.1% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 85.2% 70-130 Chlorotoluene 8260B 11/10/16:216732VRG CCV ug/L 25.00 86.8% 70-130 8260B 11/14/16:216761 VRG CCV ug/L 25.00 92.1% 70-130 -Methyl-2-pentanone(MIBK) 8260B 11/10/16:216732VRG CCV ug/L 100.0 73.5% 50-150 8260B 11/14/16:216761VRG CCV ug/L 80.00 55.0% 50-150 Acetone 8260B 11/10/16:216732VRG CCV ug/L. 100.0 106% 50-150 8260B 11/14/16:216761VRG CCV ug/L 80.00 84.9% 50-150 crolcin 8260B 11/10/16:216732VRG CCV ug/L 200.0 51.3% 50-150 8260B 11/14/16:216761VRG CCV ug/L 200.0 61.6% 50-150 crylonitrile 8260B 11/10/16:216732VRG CCV ug/L 200.0 173% 50-150 360 8260B 11/14/16:216761VRG CCV ug/I 200.0 162% 50-150 360 Amended Page 35 o 2 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Constituent Method Date/ID Type Units Cone. QC Data DQO Note Organic Benzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 90.1% 70-130 8260B 11/14/16:216761VRG CCV ug/L. 25.00 84.2% 70-130 Bromobenzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 91.6% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 102% 70-130 Bromochloromethane 8260E 11/10/16:216732VRG CCV ug/L 25.00 103% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 94.2% 70-130 Bromodichloromcthanc 8260B 11/10/16:216732VRG CCV ug/L 25.00 90.3% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 90.7% 70-130 Bromoform 8260B 11/10/16:216732VRG CCV ug/L. 25.00 74.4% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 90.4% 70-130 Bromomethane(Methyl Bromide) 8260B 11/10/16:216732VRG CCV ug/L. 25.00 157% 70-130 360 8260B 11/14/16:216761VRG CCV ug/L 25.00 126% 70-130 Carbon Disulfide 8260B 11/10/16:216732VRG CCV ug/L 100.0 179% 50-150 360 8260B 11/14/16:216761VRG CCV ug/L 80.00 123% 1 50-150 Carbon Tetrachloride 8260B 11110/16:216732VRG CCV ug/L 25.00 89.8% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 70.4% 70-130 Chlorobenzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 87.2% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 99.3% 70-130 Chloroethane(Ethyl Chloride) 8260B 11/10/16:216732VRG CCV ug/L 25.00 141% 70-130 360 8260B 11/14/16:216761VRG CCV ug/L 25.00 100% 70-130 Chloroform 8260B 11/10/16:216732VRG CCV ug/L 25.00 99.3% 80-120 8260B 11114/16:216761VRG CCV ug/L 25.00 86.4% 80-120 Chloromethane(Methyl Chloride) 8260B 11/10/16:216732VRG CCV ug/L 25.00 89.7% 70-130 8260B 11/14/16:216761VRG CCV ug/L. 25.00 89.9% 70-130 cis-1,2-Dichloroethylcnc 8260B 11/10/16:216732VRG CCV ug/L 25.00 118% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 93.7% 70-130 cis-1,3-Dichloropropene 8260B 11/10/16:216732VRG CCV ug/L 25.00 80.7% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 85.8% 70-130 ibromochloromethane 8260B 11/10/16:216732VRG CCV ug/L 25.00 87.1% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 102% 70-130 Dibromofluromcthane 8260B 11/10/16:216732VRG CCV ug/L 25.00 112% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 103% 70-130 Dibromomethane 8260B 11/10/16:216732VRG CCV ug/L, 25.00 87.6% 70-130 8260B 11/14/16:216761VRG CCV u 25.00 81.0% 70-130 Dichlorodifluoromcthane 8260B 11/10/16:216732VRG CCV ug/L. 25.00 89.8% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 82.0% 70-130 Dichloromcthane 8260B 11/10/16:216732VRG CCV ug/L. 25.00 118% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 94.1% 70-130 Ethyl tort-Butyl Ether 8260B 11/10/16:216732VRG CCV ug/L 25.00 138% 50-150 8260B 11/14/16:216761VRG CCV ug/L. 25.00 104% 50-150 Ethylbenzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 87.8% 80-120 8260B 11/14/16:216761VRG CCV ug/L 25.00 94.4% 80-120 Hexachlorobutadiene 8260B 11/10/16:216732VRG CCV ug/L. 25.00 105% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 123% 70-130 Isopropyl Ether 8260B 11/10/16:216732VRG CCV ug/L. 25.00 163% 50-150 360 8260B 11/14/16:216761VRG CCV ug/L 25.00 99.1% 50-150 Isopropylbenzenc 8260B 11/10/16:216732VRG CCV ug/L 25.00 92.5% 70-130 8260B 11/14/16:216761VRG -CCV ug/L 25.00 100% 70-130 Mcthyl tort-Butyl Ether 8260B 11/10/16:216732VRG CCV ug/L 25.00 137% 70-130 360 8260B I1/14/16:216761VRG CCV ug/L 25.00 104% 70-130 Naphthalene 8260B 11/10/16:216732VRG CCV ug/L 25.00 112% 70-130 8260B I 11/14/16:216761 VRG CCV ug/I 25.00 130% 70-130 Butylbcnzcne I 8260B 11/10/16:216732VRG CCV I ug/L 25.00 109% 70-130 Amended Page 3 6 of 42 December 2,,2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Constituent Method Date/ID Type Units Cone. QC Data DQO Note Organic Butylbcnzenc 8260B 11/14/16:216761VRG CCV ug/L 25.00 110% 70-130 n-Propylbcnzene 8260B 11/10/16:216732VRG CCV ug/L. 25.00 103% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 96.0% 70-130 Isopropyltoluene 8260B 11/10/16:216732VRG CCV ug/L 25.00 101% 70-130 8260B 11/14/16:2167,61 VRG CCV ug/L 25.00 103% 70-130 ec-Butylbcnzenc 8260B 11/10/16:216732VRG CCV ug/I. 25.00 103% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 101% 70-130 Styrene 8260B 11/10/16:216732VRG CCV ug/L 25.00 94.5% 70-130 8260B I1/14/16:216761VRG CCV ugIL 25.00 97.7% 70-130 TAME 8260B 11/10/16:216732VRG CCV ug/L 25.00 87.3% 50-150 8260B 11/14/16:216761VRG CCV ug/L 25.00 89.9% 50-150 crt-Butanol 8260B 11/10/16:216732VRG CCV ug/L. 125.0 60.4% 50-150 8260B 11/14/16:216761VRG CCV ug/L 125.0 64.9% 50-150 ert-Butylbenzene 8260B 11/10/16:216732VRG CCV ug/L 25.00 93.1% 70-130 8260B 11/14/16:216761VRG CCV ug/L. 25.00 85.3% 70-130 ctrachloroethylene(PCE) 8260B 11/10/16:216732VRG CCV ug/L 25.00 86.9% 70-130 8260B 11/14/16:216761VRG CCV ug/L_ 25.00 96.0% 70-130 Toluene 8260B 11/10/16:216732VRG CCV ug/L. 25.00 95.0% 80-120 8260B 11/14/16:216761VRG CCV ug/L. 25.00 87.7 V. 80-120 Toluene-d8 8260B 11/10/16:216732VRG CCV ug/L 25.00 104% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 96.5% 70-130 tans-1,2-Dichloroethylene 8260B 11/10/16:216732VRG CCV ug/L 25.00 123% 70-130 8260B 11/14/16:216761VRG CCV ug/L. 25.00 99.7% 70-130 cans-1,3-Dichloropropene 8260B 11/10/16:216732VRG CCV ug/L 25.00 75.2% 70-130 8260B I1/14/16:216761VRG CCV ug/L 25.00 79.9% 70-130 richloroethylene(TCE) 8260B 11/10/16:216732VRG CCV ug/L, 25.00 78.7% 70-130 8260B 11/14/16:216761VRG CCV ug/L. 25:00 78.2% 70-130 richlorofluoromethane F-I I 8260B 11/10/16:216732VRG CCV ug/L. 25.00 98.2% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 80.9% 70-130 Vinyl Acetate 8260B 11/10/16:216732VRG CCV ug/L 100.0 174% 50-150 360 8260B 11/14/16:216761VRG CCV ug/L 80.00 120% 50-150 Vinyl Chloride 8260B 11/10/16:216732VRG CCV ug/L 25.00 106% 80-120 8260B 11/14/16:216761 VRG CCV ug/L 25.00 97.5% 80-120 ylene m,p 8260B 11/10/16:216732VRG CCV UgIL 50.00 94.3% 70-130 8260B 11/14/16:216761VRG CCV ug/L 50.00 98.8% 70-130 ylcnes o 8260B 11/10/16:216732VRG CCV ug/L 25.00 91.2% 70-130 8260B 11/14/16:216761VRG CCV ug/L 25.00 99.8% 70-130 1,2,4-Trichlorobcnzene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 0.5000 74.2% 34-138 MS mg/kg 0.4888 101% 0-105 (SP 1613229-005) MSD mg/kg 0.4829 114% 0-105 435 MSRPD mg/kg 0.9659 0.056 <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 106% 70-130 1,2-Dichlorobenzene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 106% 70-130 1,2-Diphenylhydrazine 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 1,3-Dichlorobenzene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 2050 108% 70-130 1,4-Dichlorobenzene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 0.5000 69.6% 24-140 MS nig/kg 0.4888 70.9% 0-102 (SP 1613229-005) MSD mg/kg 0.4829 79.1% 0-102 \ I MSRPD 1 mg/kg 1 0.9659 1 0.036 1 <0.5 Amended Page 37 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Organic 1,4-Dichlorobenzene 8270C 11/23/16:217176SBL CCV mg/L 20.00 107% 80-120 3,4,6-Tetrachlorophcnol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 10.00 117% 70-130 2,4,5-Trichlorophenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L. 20.00 95.7% 70-130 2,4,6-Tribromophenol 8270C 11/14/16:213741JOM Blank mg/kg 1.000 68.6% 0-129 LCS mg/kg 1.000 74.2% 0-129 MS mg/kg 0.9776 106% N/A (SP 1613229-005) MSD mg/kg 0.9659 117% N/A MSRPD mgfkg 0.9659 8.1% <15 8270C 11/23/16:217176SBL CCV mg/L 20.00 96.3% 70-130 4,6-Trichlorophenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 115% 80-120 4-Dichlorophenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 107% 80-120 4-Dimethylphenol 8270C 11/14/16:213741JOM Blank mg/kg I ND <0.5 8270C 11/23116:217176SBL CCV mg/L 20.00 105% 70-130 4-Dinitrophenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 85.5% 70-130 4-Dinitrotoluene 8270C 11/14116:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 0.5000 72.1% 28-139 MS mg/kg 0.4888 145% 0-112 435 (SP 1613229-005) MSD mg/kg 0.4829 148% 0-112 435 MSRPD I mg/kg 0.9659 0.0018 1 <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 117% 70-130 6-Dinitrotoluene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 ill% 70-130 Chlorophenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 1.000 71.8% 27-150 MS mg/kg 0.9776 99.1% 0-113 (SP 1613229-005) MSD mg/kg 0.9659 114% 0-113 435 MSRPD mg/kg 0.9659 0.13 1 50.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 103% 70-130 Fluorobiphenyl 8270C 11/14/16:213741JOM Blank mg/kg 0.5000 56.7% 0-106 LCS mg/kg 0.5000 63.6% 0-106 MS mg/kg 0.4888 119% N/A (SP 1613229-005) MSD mg/kg 0.4829 122% N/A MSRPD mg/kg 0.9659 1.0% <1 8270C 11/23/16:217176SBL CCV mg/L 10.00 97.3% 70-130 -Fluorophenol 8270C 11/14/16:213741JOM Blank mg/kg 1.000 54.6% 0-115 LCS mg/kg 1.000 62.0% 0-115 MS mg/kg 0.9776 76.6% N/A (SP 1613229-005) MSD mg/kg 0.9659 85.9% N/A MSRPD tng/kg 0.9659 10.2% <20 8270C 11/23/16:217176SBL CCV mg/L 20.00 91.5% 70-130 Methylnaphthalene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 91.5% 50-150 -Mcthylphenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 98.5% 70-130 -Nitroaniline 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV I mg/L 20.00 106% 50-150 Nitrophenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 106% 80-120 3-Dichlorobenzidine 8270C I1/14/16:213741JOM Blank mg/kg ND 1 <0.5 Amended Page 38 of 42 C December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Constituent r Method Date/lD Type Units Cone. QC Data DQO Note Organic 3,3-Dichlorobenzidine 8270C 11/23/16:217176SBL CCV mg/L 20.00 115% 50-I50 3-Nitroaniline 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/l. 20.00 103% 50-150 6-Dinitro-2-methylphcnol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 6-Dinitro-o-cresol 8270C 11/23/16:217176SBL CCV mg/L 20.00 110% 70-130 Bromophenylphenylether 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 101% 70-130 Cliloro-3-methylphcnol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 1.000 86.1% 29-144 / MS mg/kg 0.9776 149% 0-120 435 (SP 1613229-005) MSD mg/kg 0.9659 175% 0-120 435 MSRPD I mg/kg 0.9659 0.23 1 <0.5 Chloroaniline 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 88.2% 50-150 Methylphcnol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 98.3% 70-130 8270C 11/23116:217215SBL CCV mg/L 20.00 105% 70-130 Nitroaniline 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 110% 1 50-150 Nitrophenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 1.000 93.3% 39-186 MS mg/kg 0.9776 0.0% 0-122 (SP 1613229-005) MSD mg/kg 0.9659 0.0% 0-122 MSRPD .mg/kg 1 0.9659 0.0 <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 102% 70-130 eenaphthene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 0.5000 76.5% 35-139 Ms mg/kg 0.4888 124% 0-108 435 (SP 1613229-005) MSD mg/kg 0.4829 139% 0-108 435 MSRPD mg/kg 0.9659 0.065 <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 105% 80-120 cenaphthylenc 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 105% 70-130 ilinc 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 94.6% 50-150 thracene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C I I/23/16:217176SBL CCV mg/L 20.00 104% 70-130 obenzene 8270C 11/23/16:217176SBL CCV mg/L 20.00 107% 70-130 enzidine 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 132% 50-150 Benzo(a)anthracene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 98.4% 70-130 Benzo(a)pyrene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 101% 80-120 cnzo(b)fluoranthene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 102% 70-130 Benzo(g,h,i)perylene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 116% 70-130 Benzo(k)fluoranthcne 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 102% 70-130 Benzoic Acid 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 82.0% 70-130 Bcnzylalcohol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 Amended Page 39 of 42 December 2, 2016 Lab ID :.SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Cone. QC Data DQO Note Organic Benzylalcohol 8270C 11/23/16:217176SBL CCV mg/L 20.00 101% 70-130 is(2-Chloroethoxy)mcthane 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 105% 70-130 is(2-Chloroethyl)cther 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 100% 70-130 is(2-Chloroisopropyl)ether 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L. 20.00 128% 70-130 is(2-Ethylhexyl)phthalate 8270C 11/14/16:213741JOM Blank mg/kg ND <1 8270C 11/23/16:217176SBL CCV mg/L 20.00 86.7% 70-130 Butylbenzylphthalate 8270C 11/14/16:213741JOM Blank ing/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 91.1% 70-130 Chloronaphthalene 8270C 11/14/16:213741JOM Blank mg/kg ND .<0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 107% 70-130 Chlorophenylphenylether 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 106% 70-130 hrysene 8270C 11/14/16:213741JOM Blank mg/kg KND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.006% 70-130 Dibenzo(a,h)anthracene 8270C 11/14/16:213741JOM Blank mg/kg D <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 % 70-130 Dibenzofuran 8270C 11/14/16:213741JOM Blank mg/kg D <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.009% 50-150 Diethylphthalate 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 102% 70-130 Dimethylphthalate 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV ing/L 20.00 108% 70-130 Di-n-butylphthalate 8270C 11/14/16:213741JOM Blank mg/kg 1.990 0.5 210 8270C 11/23/16:217176SBL CCV mg/L 20.00 102% 70-130 Di-n-octylphthalate 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 91.4% 80-120 Fluoranthene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 105% 80-120 luorene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 103% 70-130 Hexachlorobenzene 8270C 11/14/16:213741JOM Blank m ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 103% 70-130 Hexachlorobutadiene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 108% 80-120 exachlorocyclopentadicne 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 101% 70-130 Hexachloroethane 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 108% 70-130 Indeno(1,2,3-c,d)pyrcnc 8270C 11114/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 112% 70-130 Isophoronc 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mgIL 20.00 105% 70-130 Naphthalene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 102% 70-130 Nitrobenzene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 1 20.00 96.5% 70-130 Nitrobenzene-d5 8270C 11/14/16:213741JOM Blank mg/kg 0.5000 50.7% 0-151 LCS mg/kg 0.5000 58.5% 0-151 Ms mg/kg 0.4888 90.4% N/A (SP 1613229-005) MSD mWkR 0.4829 1 100% 1 N/A Amended Page 40 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control- Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Organic Nitrobenzene-d5 8270C 11/14/16:213741JOM MSRPD mg/kg 0.9659 0.043 <0.1 8270C 11/23/16:217176SBL CCV mg/L 10.00 94.0% 70-130 Nitrosodimethylamine 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 102% 70-130 Nitrosodi-N-propylamine 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 0.5000 69.1% 25-149 MS mg/kg 0.4888 280% 0-154 435 (SP 1613229-005) MSD mg/kg 0.4829 147% 0-154 MSRPD mg/kg 0.9659 0.66 <0.5 435 8270C 11/23/16:217176SBL CCV mg/L 20.00 119% 70-130 Nitrosodiphenylamine 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 119% 80-120 Chloro-m-cresol 8270C 11/23/16:217176SBL CCV mg/L 20.00 107% 80-120 cntachlorophenol 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 1.000 91.1% 60-140 MS mg/kg 0.9776 212% 0-113 435 (SP 1613229-005) MSD mg/kg 0.9659 211% 0-113 435 MSRPD mg/kg 0.9659 0.035 <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 103% 80-120 henanthrene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 102% 70-130 Phenol 8270C I1/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 1.000 77.4% 22-165 MS mg/kg 0.9776 -491% <'/i (SP 1613229-005) MSD mg/kg 0.9659 -388% <%a MSRPD mg/kg 0.9659 20.7% 1 517 435 8270C 11/23/16:217176SBL CCV mg/L 20.00 105% 80-120 Phenol-d6 8270C 11/14/16:213741JOM Blank mg/kg 1.000 52.1% 0-124 LCS mg/kg 1.000 62.1% 0-124 MS mg/kg 0.9776 96.5% N/A (SP 1613229-005) MSD mg/kg 0.9659 117% N/A MSRPD mglkg 0.9659 18.0% <16 435 8270C 11/23/16:217176SBL CCV I mg/L 20.00 94.8% 70-130 Terphcnyl-d14 8270C 11/14/16:213741JOM Blank mg/kg 0.5000 87.7% 0-101 LCS mg/kg 0.5000 86.5% 0-101 MS mg/kg 0.4888 '- 120% N/A (SP 1613229-005) MSD mg/kg 0.4829 155% N/A MSRPD mg/kg 0.9659 24.5% <0 435 8270C 11/23/16:217176SBL CCV mg/L 10.00 84.5% 1 70-130 Pyrene 8270C 11/14/16:213741JOM Blank mg/kg ND <0.5 LCS mg/kg 0.5000 94.5% 54-133 MS mg/kg 0.4888 136% 0-135 435 (SP 1613229-005) MSD mg/kg 0.4829 158% 02135 435 MSRPD mgtkg 0.9659 0.099 50.5 8270C 1 1/23/1 6 2 1 7I76SBL CCV mg/L 20.00 1 91.1% 70-130 yridinc 8270C I1/14/16:213741JOM Blank mg/kg ND 1 <0.5 8270C 11/23/16:217176SBL CCV mg/L 20.00 104% 1 70-130 11 Definition CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. LCS :Laboratory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. MS Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries arc an indication of how that sample matrix affects analyte recovery. MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is spiked with a known amount of analyted.The recoveries are an indication of how that sample matrix affects analyte recovery. Amended Page 41 of 42 December 2, 2016 Lab ID : SP 1613229 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Definition BS :Blank Spikes-A blank is spiked with a known amount of analyte.It is prepared to verify that the preparation process is not affecting analyte recovery. BSD :Blank Spike Duplicate of BS/3SD pair-A blank duplicate is spiked with a known amount of analyte.It is prepared to verify that the preparation process is not affecting analyte recovery. MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation and analysis. BSRPD :BS/BSD Relative Percent Difference(RPD)-The BS relative percent difference is an indication of precision for the preparation and analysis. ND :Non-detect-Result was below the DQO listed for the analyte. <'/+ :High Sample Background-Spike concentration was less than one forth of the sample concentration. DQO :Data Quality Objective-This is the criteria against which the quality control data is compared. Explanation 210 :The method blank was positive.However,samples reported were either ten times greater than the blank concentration or non detect and accepted. 325 :The LCS was out of acceptance limits.Results may be biased low. 360 :CCV above Acceptance Range(AR).Samples which were non detect for this analyte were accepted. 435 :Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. 436 :Blank Spike(BS)not within Acceptance Range(AR).Data was accepted based on the LCS or CCV recovery. Amended Page 42 of 42 SOUTH TAHOE PUBLIC UTILITY DISTRICT CHAIN OF CUSTODY South Tahoe Public Utility District o Lab Sent to: t / Turnaround Time 1275 Meadow Crest Drive - "f �E .ft d ..»; ......... South Lake Tahoe,CA 96150 ;' Sample Standard Phone:(530)-543-6231 ►�4•"' Z O FAX: 530 -541-4296 kt[ 24 Hr HIM, fts, w 4 Hr xs rxx or .J J,/ _ C Ogg � ,5� :.Y G/// h� r sr ,x s ?s Other t .S» .rb» itzizt3t ,+y wxstxx#ff:; fsz<ssszis>�:: 0 5:9:#,.. f#S,SS3###'#f##t##:Sf.',. 5#:S"#'t.;:G�t'f,#S.$., b, U .,r:,f,Y.»,....:':;tff,stf :✓,1..•,L:$:S::4t: tt zs`f#w;rN x�f: • xtx f$xw„cff ,,,:,:ff#'%#'i$fi###%$$#f<:£�;:�#>£s.•...�.:;f rP. .. l.L{': ... .... ... ... .. .:.�:n.•+,.,.};p"r ifs+. :•Ji:r:,..r, „ �fr't : : .:::,,.v...:. t..rn:: » :»» ».::..>.»».: ..:..r. .....+.......:ii.i,.i4»i:ii:•i'i::vi.i::;i:::::::::r < .:3:txs xs EY,' r - ` -d -4 4 l 3 �3 d u.e 2 y A � Comments: Relinquished by' Received by: ❑ Report MTBE to 0.5 µg/L. Note any detection of MTBE z 0.2 µg/L o Analyze Travel and Field Blanks only if VOCs detected in samples. Signature Signature o Use Calif State Write-On form to report results of Potable Water Wells Print Print Company SQyth Tah6e Public LAility District Company Please Return all STPUD ice chests & Blue Ice. Date: — Time_ Date: Time rxssssrs't3:YKiysf:<'s i>'s: <t#fsziit;��s'r...<#;:i$ti »ftJ,N,,;^, .. i; s't%•'�"si,;{.'x>ri;s Relinquished by: Receivedno Received intact Signature Signature Received cold Print Print Custody seals Company Company / Date: Time Date: Time Correct container !! ���111 LLab\Fonrn\Chein of Custody.doc ,✓�� � ��� �(�`\�� v t\ �� (� � p�� I� � /-� �� /� � � Oh �I f 1 �J �, 1 P�� Of Subcontract to Babcock Laboratories, Inc. p Re Client: Fruit Growers Laboratory,Inc. Address:FGL Environmental,Inc. 853 Corporation St. t Santa Paula,CA 93060-3005 a Phone: Fax: Contact Person: w a a Project Name: SP 1613229-(2-11369) y Purchase Order Number. h 3 o U_ tarr a0 � � a Sampler(s) Ops = G h x m E v U t Z y 0 ao Compositor Setup Date:_/_/_ Time:_/_ -- Y 'o A m w o 0 a u E Z O e2y ,� Lab Number: Samp Date Time Num Location Description Sampled Sampled N 5 Centrifuge Cake 11/01/16 00:00 G Sig 2 Remarks: Relinquished Date: Time: Relinquished Date: Time: Relinquished Date: Time: Received By: Date: Time: Received By: Date: Time: Received By: Date: Time: FGL Environmental Doc ID:2DO900157 SOP 17.DOC Revision Date: 10/09/14 Page: 1 of 1 Condition Upon Receipt (Attach to COC) Sample Receipt at SP: 1.Number of ice chests/packages received: 2 2. Shipper tracking numbers D1001 1034428856,D1001 1034428963 3.Were samples received in a chilled condition? Temps: 5 / 2 4.Surface water(SWTR)bact samples:A sample that has a temperature upon receipt of>10C,whether iced or not, should be flagged unless the time since sample collection has been less than two hours. 5.Do the number of bottles received agree with the Yes No N/A COC? 6.Verify sample date,time,sampler Yes No N/A 7.Were the samples received intact?(i.e. no broken Yes ' No bottles, leaks,etc.) 8.Were sample custody seals intact? Yes No N/A Sample Verification,Labeling and Distribution: 1.Were all requested analyses understood and Yes No acceptable? 2.Did bottle labels correspond with the client's ID's? Yes No 3.Were all bottles requiring sample preservation Yes No N/A FGL properly preserved? _ [Exception:Oil&Grease,VOA and CrVI verified in lab] J 4.VOAs checked for Headspace? Yes No N/A 5.Were all analyses within holding times at time of Yes No receipt? 6.Have rush or project due dates been checked and Yes No N/A accepted? Include a copy of the COC for lab delivery.(Bacti. Inorganics and Radio) Sample Receipt, Login and Verification completed by: Reviewed and Digitally signed by Shawn Peck Approved By Shawn Peck ( Data�;o3/zo a 1n:n:13 Discrepency Documentation: Any items above which are"No"or do not meet specifications(i.e.temps),must be resolved. 1. Person Contacted:Terry Powers Phone Number: (530)543-6231 Initiated By: srp Date: 2016-11-03 Problem: -3 and-4=received an extra liter amber glass bottle for each of these sites Resolution: Per Terry Powers 11/3/16-These are just extra bottles 2. Person Contacted: Phone Number: Initiated By: Date: Problem: (2011369) Resolution: South Tahoe Public Utility District S P 1613229 S RP-11/03/2016-14:17:13 J ENVIRONMENTALML Analytical Chemists November 30, 2016 South Tahoe Public Utility District 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Subject: Subcontract Analysis for FGL Lab No. SP 1613229 Enclosed please find results for the following sample(s)which were received by FGL. e Sub Contracted-EPA 8081 and EPA 8082 Please note that this analysis was performed by Babcock Laboratories, Inc. (ELAP Certified Laboratory) Thank you for using FGL Environmental. Sincerely, INgnally ugmd Sv C'wdY A u Cindy Aguirre ®E.cu s-iia:msUm1_-_ wu>an Enclosure Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL,(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 000 BABCOCK Laboratories, Inc. Client Name: FGL Environmental, Inc. Analytical Report: Page 1 of 8 Contact: Cindy Aguirre Project Name: No Project Address: 853 Corporation Street Santa Paula, CA 93060 Project Number: SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: 1361<0519 Received on Ice(Y/N): Yes Temp: 13 °C Attached is the analytical report for the sample(s) received for your project. Below is a list of the individual sample descriptions with the corresponding laboratory number(s). Also, enclosed is a copy of the Chain of Custody document(if received with your sample(s)). Please note any unused portion of the sample(s) may be responsibly discarded after 30 days from the above report date, unless you have requested otherwise. Thank you for the opportunity to serve your analytical needs. If you have any questions or concerns regarding this report please contact our client service department. Sample Identification Lab Sample# Client Sample ID Matrix Date Sampled B1 Date Submitted YA B6K0519-01 SP 1613229-(2-1 1369) Sludge 11/01/16 00:00 Client 11/04/16 14:14 Ontrac Centrifuge Cake Grab mruling location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quaff Valley Court F 951 653 1662 EPA No.CA00102 Riverside.CA 92502-0432 Riverside.CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 000 BABCOCK Laboratories, Inc. Client Name: FGL Environmental, Inc. Analytical Report: Page 2 of 8 Contact: Cindy Aguirre Project Name: No Project Address: 853 Corporation Street Santa Paula, CA 93060 Project Number: SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: 1361<0519 Received on Ice(Y/N): Yes Temp: 13 °C Laboratory Reference Number B6K0519-01 Sample Description Matrix Sampled Date/Time Received Date/Time SP 1613229-(2-11369)Centrifuge Cake Sludge 11/01/16 00:00 11/04/16 14:14 Analyte(s) Result RDL Units Method Analysis Date Analyst Flag Solids Total Solids 26 0.10 % SM 2540G 11/07/16 10:33 cmr Organochlorine Pesticides and PCBs by EPA 8000 Series 4,4'-DDD ND 420 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm 4,4'-DDE ND 300 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm 4,4'-DDT ND 450 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm a-BHC ND 380 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Aldrin ND 230 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm b-BHC ND 380 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Chlordane ND 2800 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm d-BHC ND 750 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Dieldrin ND 300 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Endosulfan I ND 300 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Endosulfan II ND 450 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Endosulfan Sulfate ND 1100 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Endrin ND 300 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Endrin Aldehyde ND 750 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Heptachlor ND 260 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Heptachlor Epoxide ND 300 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Hexachlorobenzene ND 3800 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Lindane ND 490 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Methoxychlor ND 3000 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Toxaphene ND 9400 ug/kg dry EPA 8081A 11/18/16 18:02 ss N_RLm Aroclor 1016 ND 38000 ug/kg dry EPA 8082 11/16/16 10:42 ss N_RLm Aroclor 1221 ND 38000 ug/kg dry EPA 8082 11/16/16 10:42 ss N_RLm Aroclor 1232 ND 38000 ug/kg dry EPA 8082 11/16/16 10:42 ss N_RLm Aroclor 1242 ND 38000 ug/kg dry EPA 8082 11/16/16 10:42 ss N_RLm Aroclor 1248 ND 38000 ug/kg dry EPA 8082 11/16/16 10:42 ss N_RLm Aroclor 1254 ND 38000 ug/kg dry EPA 8082 11/16/16 10:42 ss N_RLm Aroclor 1260 ND 38000 ug/kg dry EPA 8082 11/16/16 10:42 ss N_RLm Surrogate:Decachlorobiphenyl 34.8 oo 10-169 EPA 8081A 11/18/16 18:02 ss N RLm Surrogate:Decachlorobiphenyl 81.8 % 10-158 EPA 8082 11/16/16 10:42 ss mailing kxatlou P 951 653 3351 CA ELAP No.2698 P.0 Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside.CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 000 BABCOCK Laboratories, Inc. The Vwndard of'Excellence fir Over 100 Years Client Name: FGL Environmental, Inc. Analytical Report: Page 3 of 8 Contact: Cindy Aguirre Project Name: No Project Address: 853 Corporation Street Santa Paula, CA 93060 Project Number: SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: 1361<0519 Received on Ice(Y/N): Yes Temp: 13 °C Solids -Batch Quality Control Spike Source %REC RPD Analyte(s) Result RDL Units Level Result %REC Limits RPD Limit Flag Batch 6KO7081 -Analyzed as received Blank(61<07081-131-K1) Prepared&Analyzed:11/07/16 Total Solids ND 0.10 % Duplicate(6K07081-DUP1) Source:B6K0582-01 Prepared&Analyzed:11/07/16 Total Solids 2.8 0.10 % 2.9 1.74 25 mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 000 BABCOCK Laboratories, Inc. Client Name: FGL Environmental, Inc. Analytical Report: Page 4 of 8 Contact: Cindy Aguirre Project Name: No Project Address: 853 Corporation Street Santa Paula, CA 93060 Project Number: SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: 136K0519 Received on Ice(Y/N): Yes Temp: 13 °C Organochlorine Pesticides and PCBs by EPA 8000 Series -Batch Quality Control Spike Source %REC RPD Analyte(s) Result RDL Units Level Result %REC Limits RPD Limit Flag Batch 6K15089-EPA 3550B Blank(61<15089-131-K1) Prepared: 11/15/16 Analyzed: 11/18/16 4,4'-DDD ND 11 ug/kg wet 4,4'-DDE ND 8.0 ug/kg wet 4,4'-DDT ND 12 ug/kg wet a-BHC ND 10 ug/kg wet Aldrin ND 6.0 ug/kg wet b-BHC ND 10 ug/kg wet Chlordane ND 75 ug/kg wet d-BHC ND 20 ug/kg wet Dieldrin ND 8.0 ug/kg wet Endosulfan I ND 8.0 ug/kg wet Endosulfan II ND 12 ug/kg wet Endosulfan Sulfate ND 29 ug/kg wet Endrin ND 8.0 ug/kg wet Endrin Aldehyde ND 20 ug/kg wet Heptachlor ND 7.0 ug/kg wet Heptachlor Epoxide ND 8.0 ug/kg wet Hexachlorobenzene ND 100 ug/kg wet Lindane ND 13 ug/kg wet Methoxychlor ND 79 ug/kg wet Toxaphene ND 250 ug/kg wet Surrogate:Decachlorobiphenyl 72 ug/kg wet 60.0 120 10-169 LCS(6K15089-BS1) Prepared: 11/15/16 Analyzed: 11/18/16 4,4'-DDD 37.1 11 ug/kg wet 50.0 74.2 58-122 4,4'-DDE 44.9 8.0 ug/kg wet 50.0 89.8 63-118 4,4'-DDT 38.1 12 ug/kg wet 50.0 76.2 57-128 a-BHC 39.0 10 ug/kg wet 50.0 77.9 39-108 Aldrin 39.1 6.0 ug/kg wet 50.0 78.3 42-119 b-BHC 40.7 10 ug/kg wet 50.0 81.3 55-109 d-BHC 26.5 20 ug/kg wet 50.0 52.9 24-90 Dieldrin 36.4 8.0 ug/kg wet 50.0 72.8 55-124 Endosulfan 1 38.3 8.0 ug/kg wet 50.0 76.6 55-130 Endosulfan 11 36.1 12 ug/kg wet 50.0 72.2 34-127 Endrn 40.9 8.0 ug/kg wet 50.0 81.9 62-121 Endrin Aldehyde 33A 20 ug/kg wet 50.0 66.9 25-118 Heptachlor 38A 7.0 ug/kg wet 50.0 76.7 67.4-127 Heptachlor Epoxide 41.1 8.0 ug/kg wet 50.0 82.2 52-129 mailing 1(vation P 951 653 3351 CA ELAP No.2698 P.O Box 132 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0433 Riverside,CA 92507-0704 www.babcocklabs.coin NELAP No.OR4035 000 BABCOCK Laboratories, Inc. Client Name: FGL Environmental, Inc. Analytical Report: Page 5 of 8 Contact: Cindy Aguirre Project Name: No Project Address: 853 Corporation Street Santa Paula, CA 93060 Project Number: SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: B6K0519 Received on Ice(Y/N): Yes Temp: 13 °C Organochlorine Pesticides and PCBs by EPA 8000 Series - Batch Quality Control Spike Source %REC RPD Analyte(s) Result RDL Units Level Result %REC Limits RPD Limit Flag Batch 6K15089-EPA 3550E LCS(61<15089-13S1) Prepared: 11/15/16 Analyzed: 11/18/16 Lindane 38.5 13 ug/kg wet 50.0 77.0 47-100 Surrogate:Decachlorobiphenyl 72 ug/kg wet 60.0 119 10-169 LCS Dup(61<15089-13SD1) Prepared: 11/15/16 Analyzed: 11/18/16 4,4'-DDD 42.1 11 ug/kg wet 50.0 84.1 58-122 12.5 30 4,4'-DDE 50.5 8.0 ug/kg wet 50.0 101 63-118 11.6 30 4,4'-DDT 43.3 12 ug/kg wet 50.0 86.6 57-128 12.B 30 a-BHC 44.5 10 ug/kg wet 50.0 89.0 39-108 13.3 30 Aldrin 44.5 6.0 ug/kg wet 50.0 89.1 42-119 12.9 30 b-BHC 46.6 10 ug/kg wet 50.0 93.1 55-109 13.5 30 d-BHC 30.0 20 ug/kg wet 50.0 60.0 24-90 12.6 30 Dieldrin 41.3 8.0 ug/kg wet 50.0 82.6 55-124 12.6 30 Endosulfan 1 43.8 8.0 ug/kg wet 50.0 87.5 55-130 13.3 30 Endosulfan 11 41.1 12 ug/kg wet 50.0 82.2 34-127 12.9 40 Endrin 45.4 8.0 ug/kg wet 50.0 90.8 62-121 10.4 30 Endrin Aldehyde 38A 20 ug/kg wet 50.0 76.8 25-118 13.8 40 Heptachlor 44.4 7.0 ug/kg wet 50.0 88.8 67.4-127 14.6 30 Heptachlor Epoxide 46.6 8.0 ug/kg wet 50.0 93.1 52-129 12.5 30 Lindane 44.4 13 ug/kg wet 50.0 88.8 47-100 14.3 30 Surrogate:Decachlorobiphenyl 75 ug/kg wet 60.0 124 10-169 Matrix Spike(6K15089-MS1) Source:136K0519-01 Prepared: 11/15/16 Analyzed: 11/18/16 4,4'-DDD 260 420 ug/kg dry 189 ND 138 35-148 4,4'-DDE 410 300 ug/kg dry 189 ND NR 20.8-133 QMdil 4,4'-DDT ND 450 ug/kg dry 189 ND 22-176 QMdil a-BHC ND 380 ug/kg dry 189 ND 36-107 QMdil Aldrin 274 230 ug/kg dry 189 ND 145 24-133 QMdil b-BHC ND 380 ug/kg dry 189 ND 34-117 QMdil d-BHC ND 750 ug/kg dry 189 ND 20-93 QMdil Dieldrin ND 300 ug/kg dry 189 ND 48-142 QMdil Endosulfan I ND 300 ug/kg dry 189 ND 49-132 QMdil Endosulfan II ND 450 ug/kg dry 189 ND 15.9-132 QMdil Endrin 271 300 ug/kg dry 189 ND 144 37-159 Endrin Aldehyde ND 750 ug/kg dry 189 ND 27-136 QMdil Heptachlor ND 260 ug/kg dry 189 ND 42-113 QMdil Heptachlor Epoxide ND 300 ug/kg dry 189 ND 37-155 QMdil Lindane ND 490 ug/kg dry 189 ND 23-118 QMdil Surrogate:Decachlorobiphenyl 56 ug/kg dry 226 24.7 10-169 mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 132 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432) Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 000 BABCOCK Laboratories, Inc. Client Name: FGL Environmental, Inc. Analytical Report: Page 6 of 8 Contact: Cindy Aguirre Project Name: No Project Address: 853 Corporation Street Santa Paula, CA 93060 Project Number: SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: 13611<0519 Received on Ice(Y/N): Yes Tenip: 13 °C Organochlorine Pesticides and PCBs by EPA 8000 Series - Batch Quality Control Spike Source %REC RPD Analyte(s) Result RDL Units Level Result %REC Limits RPD Limit Flag Batch 6K15089-EPA 3550B Matrix Spike Dup(61<15089-MSD1) Source:1361<0519-01 Prepared: 11/15/16 Analyzed: 11/18/16 4,4'-DDD 321 420 ug/kg dry 189 ND 170 35-148 21.0 40 QMdil 4,4'-DDE 410 300 ug/kg dry 189 ND NR 20.8-133 0.0322 30 QMdil 4,4'-DDT ND 450 ug/kg dry 189 ND 22-176 40 QMdil a-BHC ND 380 ug/kg dry 189 ND 36-107 30 QMdil Aldrin 248 230 ug/kg dry 189 ND 132 24-133 9.75 30 b-BHC ND 380 ug/kg dry 189 ND 34-117 40 QMdil d-BHC ND 750 ug/kg dry 189 ND 20-93 30 QMdil Dieldrin 224 300 ug/kg dry 189 ND 119 48-142 25 Endosulfan I ND 300 ug/kg dry 189 ND 49-132 20 QMdil Endosulfan II ND 450 ug/kg dry 189 ND 15.9-132 30 QMdil Endrin 328 300 ug/kg dry 189 ND 174 37-159 19.0 30 QMdil Endrin Aldehyde ND 750 ug/kg dry 189 ND 27-136 50 QMdil Heptachlor ND 260 ug/kg dry 189 ND 42-113 30 QMdil Heptachlor Epoxide ND 300 ug/kg dry 189 ND 37-155 40 QMdil Lindane ND 490 ug/kg dry 189 ND 23-118 40 QMdil Surrogate:Decachlorobiphenyl 85 ug/kg dry 226 37.6 10-169 Batch 61<15090-EPA 3550B Blank(6K15090-BLK1) Prepared: 11/15/16 Analyzed: 11/16/16 Aroclor 1016 ND 1000 ug/kg wet Aroclor 1221 ND 1000 ug/kg wet Aroclor 1232 ND 1000 ug/kg wet Aroclor 1242 ND 1000 ug/kg wet Aroclor 1248 ND 1000 ug/kg wet Aroclor 1254 ND 1000 ug/kg wet Aroclor 1260 ND 1000 ug/kg wet Surrogate:Decachlorobiphenyl 145 ug/kg wet 200 72.4 10-158 maiL'ng 4x30012 P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside.CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 000 BABCOCK Laboratories, Inc. 1 iit vandard of Excellence f or Over 100 1'em Client Name: FGL Environmental, Inc. Analytical Report. Page 7 of 8 Contact: Cindy Aguirre Project Name No Project Address: 853 Corporation Street Santa Paula,CA 93060 Project Number. SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: 661<0519 Received on Ice(YM): Yes Temp: 13 °C Organochlorine Pesticides and PCBs by EPA 8000 Series-Batch Quality Control Spike Source %REC RPD Analyte(s) Result RDL Units Level Result %REC Limits RPD Limit Flag Batch 61<15090-EPA 3550B LCS(61<15090-13SI) Prepared: 11/15/16 Analyzed: 11/16/16 Aroclor 1016 1200 1000 ug/kg wet 2000 59.8 47.8-122 Aroclor 1260 1520 1000 ug/kg wet 2000 76.2 48.3-127 Surrogate:Decachlorobiphenyl 149 ug/kg wet 200 74.3 10-158 LCS(6K15090-BS2) Prepared: 11/15/16 Analyzed: 11/16/16 Aroclor 1016 1320 1000 ug/kg wet 2000 65.9 47.8-122 Aroclor 1260 1460 1000 ug/kg wet 2000 73.0 48.3-127 Surrogate:Decachlorobiphenyl 164 ug/kg wet 200 81.8 10-158 LCS(61<15090-13S3) Prepared: 11/15/16 Analyzed: 11/16/16 Aroclor 1016 1370 1000 ug/kg wet 2000 68.7 47.8-122 Aroclor 1260 1390 1000 ug/kg wet 2000 69.5 48.3-127 Surrogate:Decachlorobiphenyl 167 ug/kg wet 200 83.3 10-158 LCS Dup(61(15090-13SD1) Prepared: 11/15/16 Analyzed: 11/16/16 Aroclor 1016 1360 1000 ug/kg wet 2000 68.1 47.8-122 12.9 20 Aroclor 1260 1620 1000 ug/kg wet 2000 80.9 48.3-127 5.88 20 Surrogate:Decachlorobiphenyl 162 ug/kg wet 200 81.0 10-158 Matrix Spike(6K15090-MS1) Source:1361<0519-01 Prepared: 11/15/16 Analyzed: 11/16/16 Aroclor 1016 9890 38000 ug/kg dry 7550 ND 131 23-195 Aroclor 1260 3960 38000 ug/kg dry 7550 ND 52.5 13.5-134 Surrogate:Decachlorobiphenyl 551 ug/kg dry 755 73.0 10-158 Matrix Spike Dup(6KIS090-MSD1) Source:1361(0519-01 Prepared:11/15/16 Analyzed:11/16/16 Aroclor 1016 6780 38000 ug/kg dry 7550 ND 89.9 23-195 37.3 42 Aroclor 1260 ND 38000 ug/kg dry 7550 ND 13.5-134 32 QMdil Surrogate:Decachlorobiphenyl 559 ug/kg dry 755 74.1 10-158 mailing location P 951653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507.0704 www.babcocklabs.com NELAP No.OR4035 000 BABCOCK Laboratories, Inc. 7hr 1/an[""/ /i,m, /"r0-,j /00 )r�ri' Client Name: FGL Environmental, Inc. Analytical Report: Page 8 of 8 Contact: Cindy Aguirre Project Name: No Project Address: 853 Corporation Street Santa Paula, CA 93060 Project Number: SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: 113611<0519 Received on Ice(Y/N): Yes Temp: 13 °C Notes and Definitions N_RLm Due to sample matrix,the reporting limit has been raised. QMdil Due to sample dilution required from high analyte concentration and/or matrix interference,the Matrix Spike recovery for this analyte is not available. ND: Analyte NOT DETECTED at or above the Method Detection Limit(if MDL is reported), otherwise at or above the Reportable Detection Limit(RDL) NR: Not Reported RDL: Reportable Detection Limit MDL: Method Detection Limit */ NELAP does not offer accreditation for this analyte/method/matrix combination Approval Enclosed are the analytical results for the submitted sample(s). Babcock Laboratories certify the data presented as part of this report meet the minimum quality standards in the referenced analytical methods.Any exceptions have been noted. Babcock Laboratories and its officers and employees assume no responsibility and make no warranty,express or implied, for uses or interpretations made by any recipients, intended or unintended, of this report. Nancy H.Boulineau For Cindy A.Waddell cc: e-Standard_No Alias.rpt narilin� hx�ation P 951 6533351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside.CA 92502-0432 Riverside.CA 92507-0704 «"«w.babcocklab.s.coin NELAP No.OR4035 LACSD No.10119 BABCOCK Laboratories, Inc. The Standard of Excellence for O�rr 1001-ear:, Client Name: FGL Environmental, Inc. Analytical Report. Page 1 of 1 Contact: Cindy Aguirre Project Name No Project Address: 853 Corporation Street Santa Paula,CA 93060 Project Number SP 1613229-(2-11369) Report Date: 22-Nov-2016 Work Order Number: 66K0519 Received on Ice(Y1N): Temp: 13 °C Subcontract to Babcocktafi0ratodes,f ltc: __ �Iap Re Own Fruit Growers Ltbormtory,Inc. Addre:s:FGL Environnxmal.Ira'. 853 Corporation St. Santa Paula,CA 93U61-3(N)5 a Phnre: Fax 3 1'nnran Pervm: � � 3 y °C Pnyect Name: SP 1613229-(2-11369) w Fan, Nq w _ Purchase Order Number. J W y < Y c _Op,S NOV 0 4 2016 anrykmi 3 _ W z JO _ Comtpoa,u r S-mp Dme: _ Time: Lab Numhcr mrrp L—ion Dexcnlmmt Dam Time Vum Sempkd SamPw - - Ceuvitu:;e Cake WOV16 (100) G SI, _ Renurk,: p Relinytu,lw D;c: rime: Reluupuslmd Date: Time: Relinquished Date: Tinw: dj Uj Reeerve D te. Tinic: Rrceived Ry: ate: Time: Received By: Date: Time: L• C+ mailing location P 951653 3351 CA ELAP No.2698 P.O Boa 4:32 6100 Quail Valley Court F 951653 1662 EPA No.CA00102 Riverside.CA 92502-0432 Riverside.CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 HEAVENLY VALLEY CREEK EMERGENCY RETENTION BASIN And HEAVENLY VALLEY CREEK MONITORING Monthly monitoring of Heavenly Valley Creek and the monitoring wells were performed throughout 2016. Heavenly Valley Creek is the natural drainage of the areas in which the Emergency Retention Basin (ERB) and Ponds #1 and #2 are located. The monitoring results for Heavenly Valley Creek and treatment plant monitoring wells are tabulated below. Each site is reported with tables showing the monthly results for 2016 and the yearly averages since monitoring was initiated. Monitoring wells for buried sludge was initiated in 1992. The monthly results for 2016 are reported. ' }•� s� y+ • � �r -�:: ,-irk `�y. ♦�1�§ i •,j �' � <i�§• ,S•3r Y w "+i°, ����,. Y �1 - � � � _ - 'f- +r ',�� �. �L�� �[�++per 4"�y�,� •�r'�+'; ��,r;f" , �- � � '!Z �1►"sb'. 2 '1+•" � "gam s` _ a, `� Y.s "•, � � it �. ` s� _ ''•t'.� 1S"yW,�''s"°�'.; 7 _�. � A fv a 1 �a ' �� � - s•r' ,� t/ � W �y'♦s � �.�F!'„��,/i i 5. T .� 'i =fir Y�y'!i '�� � y �§ � i �.. M �• i,��' .� i t 10 r! i • i ? } } yl m �r w 1 +ems �: i rt a y r •�, "3 e�"{ '4:.. ,r �9Y ;. A _ 4r_ •,_s= ' .•+,.+ ' ',;rid �,.�, r " I_ • • - z . �� y{? i i` 4 _y � - •^� + a. ,44t '���� ��'"� �•Nii6$Id0+1��,@f t� � 'wa�"�+� +P' 1 +"• . •x� ♦ ; r ,�` �% �S� � ;��% s •*'yid.� "�y ti"' Nr+'AY 5�. ��`.:�r i � �w^ *Y' ' ..'�• i��. aA.�J�f..�5-o { �{ • -��1�r,..--% *, '���.A�" s�� yr +�*,t�" �. ,r,,: ir'� sr •j, � - i' T� °�"'_4� r"�,rt`-�'"f�., �i 'i. � �: t �*y .��. �' •. �,;y+'(tV'r # 'X '� ; t � +' t, _ i. a- 'Y j• ,g#.'�`/1 i;,� �Y a •f i . P s 6yr _. L• � a " r �,t a,wp .' - • x. * a 4s 5� i,;"r `: * •: , 4;` Image •'' �� '" 'o 0a-RYc' - ke .: y'' "+y' �' mot''' '�1 *`� r +"r _ 4"• " 2009At- V�0 1 * "7 fi 0 2010 Google, W'v Imagery Date: Nov 1.2007 let 38.919987" Ion-119.965368' elev 6331 it Eye alt 9853 it Site: HVC-1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 WATER QUALITY DATA Below Pioneer Trail HEAVENLY VALLLEY CREEK Temp EC Chloride COD TKN NO3-N Date C pH umhos mg/L mg/L mg/L mg/L Note 01/19/2016 1.4 7.15 108.0 8.84 < 0.050 0.201 02/23/2016 3.3 7.05 88.5 2.02 0.095 0.145 03/22/2016 3.5 7.18 120.0 12.50 0.247 0.081 04/09/2016 5.8 6.89 57.7 1.63 0.210 0.073 05/24/2016 6.5 6.96 36.0 0.86 0.110 0.020 06/07/2016 9.6 7.13 30.5 0.76 0.226 0.041 07/26/2016 11.7 7.11 36.9 1.44 0.091 < 0.010 08/23/2016 11.4 7.06 41.4 0.83 0.120 0.011 09/20/2016 11.9 7.16 45.8 0.95 0.058 0.012 10/12/2016 8.8 7.65 61.4 1.31 < 0.070 0.072 11/15/2016 7.4 6.89 52.4 1.22 0.117 0.030 12/13/2016 3.5 6.83 58.5 1.38 < 0.150 0.055 Maximum 11.9 7.65 120.0 12.50 0.0 0.247 0.201 Minimum 1.4 6.83 30.5 0.76 0.0 < 0.050 < 0.010 Average 7.1 7.09 61.4 2.80 0.129 0.063 #Tests 12 12 12 12 0 12 12 Temp pH EC Chloride COD TKN NO3-N Year C umhos mg/L mg/L mg/L mg/L Comments 1984 4.0 7.30 43.0 0.90 5.0 0.110 1985 3.7 7.39 50.0 1.30 6.0 0.180 1986 4.1 7.18 42.0 1.00 8.0 0.130 1987 4.7 6.70 77.0 5.50 5.0 0.200 1988 1.9 6.99 80.0 5.10 5.0 0.330 1989 4.8 7.14 59.0 1.50 6.0 0.150 1990 5.0 7.46 75.3 2.09 6.8 0.209 1991 5.6 7.34 84.9 2.44 6.3 0.153 1992 3.4 7.49 75.8 2.30 13.0 0.146 1993 5.5 7.25 57.8 1.67 9.1 0.120 0.093 1994 4.4 7.54 66.9 2.10 10.6 0.600 0.098 1995 5.1 6.80 55.8 1.85 10.6 0.335 0.085 1996 5.6 7.30 49.0 1.10 6.0 0.234 0.050 1997 6.1 7.25 42.0 0.90 6.0 0.294 0.070 1998 4.9 6.90 44.0 1.00 5.0 0.203 0.050 1999 5.2 6.97 43.7 0.99 5.3 0.218 0.079 2000 5.1 7.33 47.5 0.91 5.0 0.194 0.063 2001 6.3 7.30 56.6 1.39 5.5 0.147 0.113 2002 7.3 6.88 55.4 1.61 5.9 0.163 0.066 2003 6.7 7.12 58.1 2.75 10.4 0.199 0.099 2004 5.3 7.15 58.5 1.60 6.8 0.279 0.082 2005 5.3 7.29 50.6 1.50 13.3 0.209 0.073 2006 4.9 7.18 47.4 1.00 8.9 0.116 0.040 2007 6.1 7.12 57.8 1.40 11.2 0.148 0.077 2008 6.4 7.09 57.2 1.40 7.5 0.089 0.083 2009 5.5 7.20 56.0 1.50 14.6 0.145 0.070 2010 4.7 7.26 56.9 1.60 7.9 0.116 0.083 2011 4.7 7.16 49.2 0.90 8.7 0.179 0.038 2012 6.1 7.27 61.6 1.20 0.067 0.068 2013 5.8 7.33 66.6 1.40 0.090 0.124 2014 6.0 7.24 65.7 1.60 0.066 0.131 2015 6.4 7.42 70.0 1.60 0.130 0.088 2016 7.1 7.09 61.4 2.80 0.129 0.063 Maximum 7.3 7.54 84.9 5.50 14.6 0.600 0.330 Minimum 1.9 6.70 42.0 0.90 5.0 0.066 0.038 Average 5.3 7.19 58.3 1.75 7.8 0.186 0.106 #Years 33 33 33 33 28 24 33 Site: HVC-2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 WATER QUALITY DATA Upstream STPUD HEAVENLY VALLLEY CREEK Temp EC Chloride COD TKN NO3-N Date C pH umhos mg/L mg/L mg/L -mg/L Note 01/19/2016 Dry 02/23/2016 2.7 5.81 106.0 8.34 0.451 0.095 03/22/2016 5.7 6.31 80.6 10.70 0.442 0.025 04/09/2016 6.4 6.15 84.1 7.21 0.413 0.014 05/24/2016 9.1 6.21 29.2 0.97 0.249 < 0.010 06/07/2016 10.6 6.36 30.7 0.80 0.316 < 0.010 07/26/2016 11.4 6.54 41.8 1.49 0.280 < 0.010 08/23/2016 10.5 6.56 73.5 0.84 0.309 < 0.010 09/20/2016 Dry 10/12/2016 Dry 11/15/2016 Dry 12/13/2016 2.0 6.13 161.0 3.18 0.273 0.025 Maximum 11.4 6.56 161.0 10.70 0.0 0.451 0.095 Minimum 2.0 5.81 29.2 0.80 0.0 0.249 < 0.010 Average 7.3 6.26 75.9 4.19 0.342 0.025 #Tests 8 8 8 8 0 8 8 Temp pH EC Chloride COD TKN NO3-N Year C umhos mg/L mg/L mg/L mg/L Comments 1984 4.5 7.07 44.0 1.40 6.0 0.090 1985 3.2 7.13 47.0 1.30 7.0 0.110 1986 3.3 6.75 43.0 1.60 19.0 0.170 1987 3.9 7.10 47.0 1.40 7.0 0.090 1988 0.9 6.67 56.0 2.50 7.0 0.070 1989 4.2 6.95 64.7 2.74 24.0 0.220 1990 5.2 6.89 63.2 3.14 24.6 0.064 1991 10.6 6.79 56.8 4.30 21.0 0.075 1992 No flow for entire year 1993 6.5 7.04 56.8 2.95 20.5 0.480 0.301 1994 3.9 7.11 68.7 2.52 15.3 0.057 1995 5.6 6.33 46.9 2.05 11.2 0.378 0.056 1996 6.2 6.92 47.0 1.50 12.0 0.386 0.020 1997 6.9 7.12 49.0 1.70 4.0 0.290 0.020 1998 5.1 6.78 48.0 1.50 6.0 0.277 0.010 1999 6.1 6.72 47.9 1.14 5.6 0.239 0.020 2000 4.3 7.05 47.2 1.32 7.4 0.255 0.033 2001 5.3 6.97 51.6 1.78 7.6 0.265 0.015 2002 8.7 6.91 53.3 2.86 13.9 0.258 0.016 2003 10.2 6.73 59.5 4.12 20.6 0.377 0.056 2004 7.1 6.89 38.0 1.49 8.4 0.272 0.026 2005 6.6 6.78 41.4 1.53 21.8 0.504 0.043 2006 4.9 6.96 47.6 1.44 13.3 0.158 0.015 2007 4.6 7.04 49.2 1.39 10.1 0.156 0.019 2008 6.8 6.88 45.2 1.74 10.0 0.180 0.032 2009 6.4 6.72 41.1 1.63 16.3 0.328 0.014 2010 5.7 7.05 47.7 2.13 15.9 0.230 0.083 2011 5.2 6.74 49.2 1.13 15.2 0.143 0.018 2012 5.9 6.72 53.7 2.32 0.216 0.017 2013 5.7 6.67 53.9 2.83 0.168 0.026 2014 6.5 6.43 56.7 3.75 0.377 0.073 2015 8.7 6.65 42.2 1.38 0.404 0.197 2016 7.3 6.26 75.9 4.19 0.342 0.025 Maximum 10.6 7.13 75.9 4.30 24.6 0.504 0.301 Minimum 0.9 6.26 38.0 1.13 4.0 0.143 0.010 Average 5.8 6.84 51.2 2.15 13.0 0.291 0.065 #Years 32 32 32 32 27 23 1 32 Site: HVC-3 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 WATER QUALITY DATA Below Meadow Crest Dr HEAVENLY VALLLEY CREEK Temp EC Chloride COD TKN NO3-N Date C pH umhos mg/L mg/L mg/L mg/L Note 01/19/2016 Dry 02/23/2016 1.6 6.10 170.0 17.50 0.401 0.114 03/22/2016 3.6 6.53 217.0 34.20 0.351 0.994 04/09/2016 7.9 6.36 97.3 15.20 0.378 0.411 05/24/2016 8.0 6.24 30.0 1.02 0.260 < 0.010 06/07/2016 11.4 6.44 30.9 0.81 0.354 < 0.010 07/26/2016 11.2 6.67 44.7 1.50 0.227 < 0.010 08/23/2016 10.8 6.70 59.9 0.85 0.350 < 0.010 09/20/2016 Dry 10/12/2016 Dry 11/15/2016 Dry 12/13/2016 2.1 6.13 57.9 3.42 0.256 0.027 Maximum 11.4 6.70 217.0 34.20 0.0 0.401 0.994 Minimum 1.6 6.10 30.0 0.81 0.0 0,227 < 0.010 Average 7.1 6.40 88.5 9.31 0.322 0.198 #Tests 8 8 8 8 0 8 8 Temp pH EC Chloride COD TKN NO3-N Year C umhos mg/L mg/L mg/L mg/L Comments 1984 4.6 7.05 50.0 1.90 7.0 0.100 1985 3.4 7.16 84.0 3.80 9.0 0.190 1986 4.1 6.73 93.0 11.80 25.0 0.590 1987 3.9 6.94 96.0 5.10 16.0 0.170 1988 0.9 6.65 241.0 17.70 22.0 1.220 1989 4.8 7.01 152.0 12.40 38.1 0.320 1990 7.1 7.27 88.3 5.95 13.8 0.178 1991 7.5 6.90 161.7 12.18 15.5 0.165 1992 1.1 7.07 289.0 22.50 29.0 0.105 1993 6.0 7.08 88.8 4.20 21.8 0.770 0.247 1994 5.1 7.24 82.6 3.79 48.6 3.240 0.084 1995 5.5 7.11 70.8 3.90 9.4 0.487 0.128 1996 6.0 6.88 49.0 1.70 12.0 0.314 0.040 1997 6.6 7.05 51.0 1.80 4.0 0.290 0.020 1998 4.9 6.73 51.0 1.60 6.0 0.272 0.020 1999 5.5 6.81 50.7 1.37 5.6 0.255 0.018 2000 4.2 7.07 50.8 1.51 7.2 0.322 0.038 2001 7.3 6.66 63.3 2.34 7.0 0.334 0.011 2002 7.3 6.96 76.6 3.77 29.7 0.659 0.154 2003 6.7 6.82 97.3 5.38 20.7 0.455 0.262 2004 6.2 6.79 42.3 1.68 8.5 0.219 0.058 2005 5.5 6.83 49.3 1.73 16.0 0.386 0.145 2006 4.3 6.93 50.9 1.57 13.4 0.184 0.017 2007 3.9 6.89 52.1 1.59 10.0 0.133 0.022 2008 6.5 6.85 64.0 2.79 10.4 0.211 0.187 2009 5.8 6.85 55.3 4.08 17.8 0.307 0.098 2010 5.6 7.09 56.7 2.61 14.3 0.228 0.146 2011 5.0 6.89 51.0 1.27 13.5 0.330 0.023 2012 5.4 6.74 56.3 2.17 0.211 0.018 2013 5.5 6.81 59.5 3.85 0.190 0.032 2014 6.7 6.56 68.4 6.07 0.308 0.033 2015 7.6 7.27 46.8 1.90 0.476 0.174 2016 7.1 6.40 88.5 9.31 0.322 0.198 Maximum 7.6 7.27 289.0 22.50 48.6 3.240 1.220 Minimum 0.9 6.40 42.3 1.27 4.0 0.133 0.011 Average 5.4 6.91 82.7 5.01 16.1 0.454 0.158 #Years 33 33 33 33 28 24 33 Site: HVC-5 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 WATER QUALITY DATA Culvert Avove Meadow Crest Dr HEAVENLY VALLLEY CREEK Temp EC Chloride COD TKN NO3-N Date C pH umhos mg/L mg/L mq/L mg/L Note 01/19/2016 1.3 6.93 307.0 76.10 0.255 0.085 02/23/2016 Dry I 03/22/2016 Dry 04/09/2016 9.2 6.53 56.2 8.69 0.381 0.143 05/24/2016 Dry 06/07/2016 Dry 07/26/2016 Dry 08/23/2016 Dry 09/20/2016 Dry 10/12/2016 Dry 10/15/2016 9.1 6.60 21.6 1.27 0.403 0.077 11/15/2016 Dry 12/10/2016 0.4 6.69 22.0 2.26 0.204 0.097 12/13/2016 Dry Maximum 9.2 6.93 307.0 76.10 0.0 0.403 0.143 Minimum 0.4 6.53 21.6 1.27 0.0 0.204 0.077 Average 5.0 6.69 101.7 22.08 0.311 0.101 #Tests 4 4 4 4 0 4 4 Temp pH EC Chloride COD TKN NO3-N Year C umhos mg/L mq/L mg/L mg/L Comments 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 8.0 7.53 80.0 3.70 18.0 0.910 0.240 1995 4.2 6.83 36.0 2.00 41.0 1.000 0.130 1996 5.3 7.28 69.0 8.40 31.0 0.963 0.350 1997 4.3 6.49 268.0 3.50 29.0 0.840 0.070 1998 0.7 6.50 133.0 5.20 27.0 0.910 1.780 1999 8.0 6.97 67.4 12.60 25.7 1.190 0.123 2000 4.4 6.67 31.1 15.35 21.2 0.639 0.236 2001 Dry 2002 4.9 6.74 30.1 1.10 92.9 1.460 0.352 2003 1.1 7.29 37.0 6.69 24.0 0.583 0.222 2004 Dry 2005 3.7 6.73 74.3 4.08 66.0 1.016 0.689 2006 6.1 7.23 112.0 3.49 45.7 0.568 0.455 2007 2.1 6.62 45.9 3.27 93.5 0.875 0.216 2008 Dry 2009 5.9 7.01 36.0 2.76 31.6 0.447 0.210 2010 6.2 7.18 174.3 33.92 97.3 0.846 0.539 2011 6.3 6.64 66.7 3.72 208.0 0.980 0.441 2012 3.9 6.59 38.8 3.17 0.509 0.180 2013 15.7 5.89 50.7 4.34 1.880 0.401 2014 4.4 6.73 50.2 7.23 0.319 0.116 2015 9.5 6.08 33.8 8.46 1.201 0.069 2016 5.0 6.69 101.7 22.08 0.311 0.101 Maximum 15.7 7.53 268.0 33.92 208.0 1.880 1.780 Minimum 0.7 5.89 30.1 1.10 18.0 0.311 0.069 Average 5.5 6.78 76.8 7.75 56.8 0.872 0.346 #Years 20 20 20 20 15 20 20 Nitrate-Nitrogen 1.40 1.20 1.00 J_ 0 0.80 Z 0.60 O Z 0.40 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A „It _ _ --ey ii.'r fit,'"» .. lip. is,x .. - 4'1%. > Y cite . , ,,,, ,, , a �Nsi :t a '� r SImage,Q �l1 p#pi a`IO#�sba4� •y. �f *s{ +1 ` ',r-. :: r#__- ' t "^w w` 49$ A �-pye Ii At* +.,� i :m ` x d r-. +b 2011 f3oogle a �r e +�_�,y"1yi 2q „+ Ay x . r o, Y*• ., �k F Y C ,Tµ,Y''tr• ♦ .� • �. 0.x yet Y L-,-- imagery Date: Nov 1, 2007 lat. 38 914140' Ion -119.964985° elev 6314 It Ey i#t , SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: CONTROL WATER QUALITY DATA Area: Emergency Pond MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6276.37 8.6 6.98 257 17.1 4.80 04/07/16 6276.56 8.8 6.92 236 16.6 4.68 07/01/16 6277.48 9.9 6.98 229 15.7 4.68 10/12/16 6278.12 8.7 6.97 238 16.3 4.68 Maximum 6278.12 9.9 6.98 257 17.1 0 4.80 Minimum 6276.37 8.6 6.92 229 15.7 0 4.68 Average 6277.13 9.0 6.96 240 16.4 4.71 #Tests 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 1985 �, 1986 1987 6281.4 9.1 6.87 137 3.6 6 0.64 1988 6277.4 9.2 6.84 115 0.6 7 0.10 1989 6279.1 10.4 7.18 118 0.6 6 0.24 1990 6274.0 9.7 7.27 120 0.9 5 0.44 1991 6273.3 9.3 7.21 118 1.4 < 5 0.61 1992 6272.2 9.4 7.44 123 1.2 5 0.73 1993 6273.1 9.9 7.25 131 1.4 5 1.01 1994 6275.2 11.0 7.11 143 1.8 6 1.50 1995 6277.7 9.5 7.07 153 2.7 7 2.03 1996 6282.9 9.6 7.05 162 5.7 3 2.66 1997 6285.5 10.1 6.89 173 5.6 4 2.64 1998 6284.0 9.8 6.66 170 5.8 < 5 2.39 1999 6284.3 9.3 6.70 175 6.8 6 2.43 2000 6282.8 9.4 6.83 174 7.4 < 5 2.40 2001 6280.5 9.4 6.87 173 8.1 5 2.34 2002 6278.7 9.6 6.89 176 8.1 6 2.36 2003 6278.4 10.2 7.02 182 8.6 5 2.60 2004 6278.7 9.1 6.91 182 9.4 6 2.91 2005 6279.3 9.2 7.01 189 9.8 8 3.18 2006 6283.0 9.7 6.96 200 10.1 8 3.45 2007 6281.8 9.8 6.82 192 10.5 6 3.40 2008 6279.6 10.1 6.96 190 10.9 5 3.42 2009 6278.6 9.8 6.81 204 11.7 6 3.72 2010 6278.6 9.9 6.79 217 12.6 5 4.00 2011 6281.6 9.7 6.84 225 13.1 8 4.28 2012 6281.6 9.7 7.19 226 15.1 4.70 2013 6279.6 9.8 7.39 230 15.6 4.69 2014 6278.4 9.6 7.00 236 16.0 4.55 2015 6277.1 10.4 6.87 240 16.0 4.60 2016 6277.1 9.0 6.96 240 16.4 4.71 Maximum 6285.5 11.0 7.44 240 16.4 8 4.71 Minimum 6272.2 9.0 6.66 115 0.6 3 0.10 Average 6279.2 9.7 6.99 177 7.9 6 2.62 #Years 30 30 30 30 30 25 30 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: MW01.5 WATER QUALITY DATA Area: Emergency Pond MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6267.18 8.8 7.15 173 2.34 0.540 04/07/16 6267.53 8.5 6.91 158 2.42 0.537 07/01/16 6267.57 9.4 7.20 150 1.96 0.379 10/12/16 6267.47 8.5 7.08 155 2.11 0.349 Maximum 6267.57 9.4 7.20 173 2.42 0 0.540 Minimum 6267.18 8.5 6.91 150 1.96 0 0.349 Average 6267.44 8.8 7.09 159 2.21 0.451 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 1985 1986 6273.3 8.1 7.11 402 30.6 4 4.72 1987 6272.9 9.1 6.87 355 23.7 5 2.79 1988 6271.6 9.7 6.97 327 20.7 8 2.21 1989 1990 1991 1992 1993 1994 1995 1996 1997 6270.4 9.6 7.02 196 6.0 4 0.970 1998 6269.5 9.0 6.98 165 4.3 < 5 0.670 1999 6275.9 9.3 7.03 171 3.4 < 5 0.680 2000 6268.9 9.4 7.08 170 3.0 6 0.650 2001 6268.5 9.3 6.80 157 2.6 5 0.510 2002 2003 2004 2005 6270.3 9.1 7.01 192 4.5 9 0.590 2006 6270.0 9.2 7.19 180 4.0 8 0.631 2007 6278.8 9.4 7.05 168 3.7 6 0.776 2008 6267.9 9.8 7.17 162 3.2 5 0.649 2009 6267.6 9.2 7.12 162 2.6 5 0.537 2010 6267.7 9.4 7.05 161 2.3 5 0.480 2011 6268.3 8.9 6.97 174 2.4 10 0.482 2012 6268.4 9.1 7.19 159 2.3 0.475 2013 6267.7 9.0 7.10 162 2.1 0.457 2014 6267.4 9.0 7.18 163 2.2 0.405 2015 6267.2 8.8 6.96 172 2.2 0.462 2016 6267.4 8.8 7.09 159 2.2 0.451 Maximum 6278.8 9.8 7.19 402 30.6 10 4.720 Minimum 6267.2 8.1 6.80 157 2.1 4 0.405 Average 6270.0 9.2 7.05 198 6.4 6 0.980 #Years 20 20 20 20 20 15 20 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: MW02-50 WATER QUALITY DATA Area: Emergency Pond MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6266.01 8.9 6.82 327 36.5 3.07 04/07/16 6266.54 10.1 6.53 306 36.4 3.04 07/01/16 6265.97 10.8 6.75 315 35.0 2.96 10/12/16 6266.43 9.6 6.65 299 36.9 2.65 Maximum 6266.54 10.8 6.82 327 36.9 0 3.07 Minimum 6265.97 8.9 6.53 299 35.0 0 2.65 Average 6266.24 9.9 6.69 312 36.2 2.93 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 6284.1 1985 1986 6271.7 8.6 6.56 470 46.3 4 12.28 1987 6272.4 10.5 6.51 584 63.3 7 12.72 1988 6273.3 10.7 6.60 574 60.8 9 9.68 1989 6265.9 8.6 8.53 630 62.5 5 13.51 1990 Dry 1991 Dry 1992 Dry 1993 Dry 1994 Dry 1995 Dry 1996 6269.4 9.3 6.78 528 53.2 2 12.40 1997 6270.3 10.4 6.53 588 59.2 4 13.92 1998 6269.1 10.1 6.53 557 55.0 < 5 12.82 1999 6269.2 9.8 6.41 456 43.3 6 10.22 2000 6268.5 10.2 6.69 404 37.6 5 8.60 2001 6268.3 10.3 6.59 391 36.9 5 8.40 2002 Dry 2003 Dry 2004 Dry 2005 6270.1 9.9 6.53 535 52.0 12 15.16 2006 6269.9 10.4 6.37 614 53.9 10 18.35 2007 6268.6 10.5 6.31 573 52.7 8 14.98 2008 6268.0 10.7 6.59 438 42.7 5 9.48 2009 6266.7 10.6 6.49 389 39.2 6 7.35 2010 6265.9 10.3 6.50 364 37.9 7 6.38 2011 6268.6 10.0 6.54 358 36.9 13 5.84 2012 6268.2 10.2 6.46 348 39.0 5.16 2013 6267.1 10.0 6.66 334 37.2 4.39 2014 6266.7 10.1 6.77 326 ;37.6 3.88 2015 6266.5 10.3 6.73 323 36.6 3.25 2016 6266.2 9.9 6.69 312 36.2 2.93 Maximum 6284.1 10.7 8.53 630 63.3 13 18.35 ' Minimum 6265.9 8.6 6.31 312 36.2 2 2.93 Average 6269.3 10.1 6.65 459 46.4 7 9.62 #Years 23 22 22 22 22 17 22 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: MW03-50 WATER QUALITY DATA Area: Emergency Pond MONITORING WELLS Mean Sea Temp EC Chloride ' COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6267.22 9.1 6.28 534 46.1 19.2 04/07/16 6267.44 10.2 6.16 457 40.6 14.6 07/01/16 6267.48 11.0 6.27 463 38.4 12.0 10/12/16 6267.21 9.8 6.19 443 41.2 12.7 Maximum 6267.48 11.0 6.28 534 46.1 0 19.2 Minimum 6267.21 9.1 6.16 443 38.4 0 12.0 Average 6267.34 10.0 6.23 474 41.6 14.6 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 6275.7 9.4 6.40 431 45.7 16 7.19 1985 6270.5 10.8 6.46 418 36.6 25 9.84 1986 6273.9 10.7 6.21 443 41.4 10 5.37 1987 6272.7 10.4 6.29 518 59.2 9 1.63 1988 6269.4 11.1 6.28 653 68.9 6 1.79 1989 6265.9 11.7 6.39 738 67.3 8 0.88 1990 6265.4 11.3 6.44 814 66.2 10 2.24 1991 6265.1 10.6 6.52 713 63.6 8 0.75 1992 6265.2 10.2 6.57 668 61.4 9 1.41 1993 6266.1 10.8 6.41 636 57.9 8 1.51 1994 6265.4 10.9 6.45 645 60.5 8 1.34 1995 6267.3 9.8 6.51 578 53.2 9 6.78 1996 6269.1 10.4 6.26 539 55.0 3 13.48 1997 6270.4 10.4 6.20 595 51.3 4 21.33 1998 6269.2 10.2 6.11 493 46.5 < 5 11.17 1999 6269.2 9.8 6.11 400 38.3 5 4.53 2000 6268.5 10.3 6.46 381 32.0 5 4.85 2001 6268.0 10.6 6.33 494 42.6 5 18.51 2002 6267.6 10.6 5.96 671 55.8 7 28.95 2003 6267.5 10.8 6.11 623 60.4 5 22.14 2004 6267.4 9.9 6.27 531 50.9 6 16.43 2005 6270.6 10.4 6.33 513 49.9 10 21.70 2006 6270.1 10.6 6.22 542 61.0 9 17.00 2007 6268.8 10.8 6.10 500 67.5 7 10.30 2008 6268.0 11.0 6.59 429 63.1 6 5.90 2009 6267.8 10.3 6.50 480 58.3 6 14.10 2010 6267.7 10.7 6.48 493 62.4 7 17.10 2011 6268.8 10.5 6.36 469 63.7 10 11.60 2012 6268.3 10.6 6.35 396 53.9 5.10 2013 6267.6 10.8 6.40 484 51.6 16.70 2014 6267.2 10.2 6.16 598 53.2 27.50 2015 6267.0 10.3 6.15 560 47.4 23.10 2016 6267.3 10.0 6.23 474 41.6 14.60 Maximum 6275.7 11.7 6.59 814 68.9 25 28.95 Minimum 6265.1 9.4 5.96 381 32.0 3 0.75 Average 6268.4 10.5 - 6.32 543 54.2 8 11.12 #Years 33 33 33 33 33 28 33 l SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: MW04-50 WATER QUALITY DATA Area: Emergency Pond MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6267.57 8.2 6.27 97.0 5.10 0.657 04/07/16 6268.19 9.1 6.16 87.3 5.18 0.717 07/01/16 6269.06 9.8 6.10 85.8 4.61 0.839 10/12/16 6268.58 8.7 6.09 91.0 4.87 1.090 Maximum 6269.06 9.8 6.27 97.0 5.18 0 1.090 Minimum 6267.57 8.2 6.09 85.8 4.61 0 0.657 Average 6268.35 9.0 6.16 90.3 4.94 0.826 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 6266.6 11.4 6.68 90 1.8 3 0.330 1985 1986 6266.9 7.2 6.18 75 3.8 4 0.570 1987 6265.6 8.9 6.14 208 31.7 6 1.720 1988 6263.8 8.7 5.96 306 44.9 8 1.350 1989 6261.6 9.5 6.12 284 36.5 6 1.190 1990 6263.0 8.7 6.20 272 35.9 6 1.494 1991 6263.2 8.5 6.39 286 46.6 5 1\.047 1992 6261.8 8.4 6.23 358 55.8 6 0!686 1993 6263.4 9.0 6.19 217 25.6 60 1637 1994 6263.7 9.1 6.16 190 21.9 7 0.565 1995 6267.5 8.6 6.70 146 12.9 11 0.365 1996 6269.5 8.7 6.38 85 4.8 3 0.070 1997 6271.4 8.9 6.37 77 5.3 4 0.070 1998 6270.1 8.4 6.15 140 6.0 < 5 0.060 1999 6270.1 8.6 6.04 77 5.5 < 5 0.070 2000 6267.9 8.3 6.58 76 5.3 < 5 0.070 2001 6267.6 9.1 6.48 77 4.8 < 5 0.100 2002 6267.3 8.8 6.06 80 4.4 6 0.100 2003 6267.6 9.1 6.32 79 5.5 5 0.080 2004 6267.8 6.6 6.27 74 4.2 5 0.050 2005 6269.8 8.7 6.32 80 4.2 9 0.061 2006 6271.8 8.9 6.48 81 6.2 8 0.026 2007 6269.4 9.1 6.57 81 6.6 6 0.027 2008 6268.7 9.1 6.78 80 6.5 5 0.027 2009 6268.3 8.7 6.21 80 5.9 7 0.037 2010 6268.6 9.0 6.14 82 5.5 6 0.037 2011 6271.0 9.1 6.11 81 5.4 6 0.037 2012 6269.4 8.6 6.19 79 6.3 0.042 2013 6268.8 8.9 6.17 78 5.4 0.116 2014 6268.3 8.9 6.31 81 5.1 0.298 2015 6267.9 8.9 6.27 91 4.9 0.608 2016 6268.4 9.0 6.16 90 4.9 0.826 Maximum 6271.8 11.4 6.78 358 55.8 11 1.720 Minimum 6261.6 6.6 5.96 74 1.8 3 0.026 Average 6267.4 8.8 6.29 131 13.4 6 0.399 #Years 32 32 32 32 32 27 32 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: MW07-50 WATER QUALITY DATA Area: Emergency Pond MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6274.36 7.3 7.61 206 12.6 0.460 04/07/16 6275.18 7.7 7.21 188 12.4 0.458 07/01/16 6271.43 11.6 6.56 193 12.9 0.502 10/12/16 6276.11 8.6 7.04 187 12.9 0.449 Maximum 6276.11 11.6 7.61 206 12.9 0 0.502 Minimum 6271.43 7.3 6.56 187 12.4 0 0.449 Average 6274.27 8.8 7.11 194 12.7 0.467 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 6282.7 1985 1986 6280.7 1987 6277.4 7.4 6.61 293 28.2 6 0.570 1988 6274.1 7.6 6.64 291 28.3 8 0.560 1989 6271.1 7.6 6.65 287 28.7 6 0.580 1990 6273.3 7.0 6.69 287 28.3 6 0.609 1991 6270.8 7.7 6.83 287 30.3 7 0.492 1992 6268.8 6.7 6.71 282 29.8 6 0.497 1993 6270.9 7.6 6.67 297 29.3 7 0.484 1994 6272.5 8.2 6.68 287 29.2 8 0.527 1995 6275.2 7.6 6.81 282 30.0 8 0.548 1996 6279.2 8.1 6.48 281 28.9 4 0.560 1997 6281.1 8.2 6.50 278 28.4 4 0.560 1998 6280.2 8.0 6.34 274 27.8 < 5 0.610 1999 6280.2 8.1 6.28 268 25.9 5 0.590 2000 6279.1 7.9 6.53 260 25.2 5 0.620 2001 6277.4 7.9 6.43 251 24.1 5 0.610 2002 6276.3 7.8 6.41 247 22.2 7 0.570 2003 6276.3 8.1 6.36 244 21.7 5 0.580 2004 6276.2 7.7 6.37 234 20.9 6 0.600 2005 6277.3 7.7 6.55 228 20.1 13 0.558 2006 6279.8 8.5 6.57 227 18.7 10 0.545 2007 6278.5 8.0 6.20 237 18.5 7 0.565 2008 6277.2 8.7 6.41 232 18.3 5 0.556 2009 6276.5 8.0 6.41 223 17.6 7 0.544 2010 6276.8 8.1 6.34 216 16.3 8 0.534 2011 6279.1 8.0 6.32 206 15.1 7 0.493 2012 6278.5 8.1 6.77 202 14.8 0.525 2013 6277.2 8.3 6.55 198 13.9 0.505 2014 6275.9 8.2 6.79 196 13.8 0.490 2015 6275.2 9.5 7.30 196 12.8 0.469 2016 6274.3 8.8 7.11 194 12.7 0.467 Maximum 6282.7 9.5 7.30 297 30.3 13 0.620 Minimum 6268.8 6.7 6.20 194 12.7 4 0.467 Average 6276.6 8.0 6.58 250 22.7 7 0.547 #Years 32 30 30 30 30 25 30 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: MW08-25 WATER QUALITY DATA Area: Treatment Plant MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6246.25 9.0 5.38 495 25.3 22.200 04/07/16 6247.10 8.9 5.63 257 8.1 4.550 07/01/16 6246.04 9.1 5.84 344 16.9 < 0.080 10/12/16 6244.62 11.0 6.15 622 19.8 < 0.080 Maximum 6247.10 11.0 6.15 622 25.3 0 22.200 Minimum 6244.62 8.9 5.38 257 8.1 0 < 0.080 Average 6246.00 9.5 5.75 430 17.5 6.728 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 6246.0 9.2 6.30 878 136.1 75 0.250 1985 6247.8 9.9 6.41 876 143.0 72 0.570 1986 6247.2 ' 9.8 6.38 878 126.4 72 0.570 1987 6246.5 9.2 6.28 811 119.0 59 0.280 1988 6247.4 9.4 6.37 828 102.0 57 0.180 1989 6247.7 10.2 6.33 753 101.0 57 0.080 1990 6247.4 9.3 6.35 742 93.5 50 0.094 1991 6246.8 8.7 6.40 701 84.8 43 0.067 1992 6246.6 8.0 6.50 766 73.1 56 0.064 1993 6246.9 8.8 6.38 715 54.9 61 0.014 1994 6246.8 9.5 6.35 827 50.1 65 < 0.010 1995 6248.5 8.9 6.48 830 41.2 72 0.020 1996 6248.3 9.8 6.39 940 42.3 81 0.030 1997 6248.2 10.1 6.33 971 51.3 76 0.010 1998 6248.2 9.7 6.24 1016 50.2 79 0.020 1999 6248.2 9.7 6.25 1017 49.9 85 < 0.010 2000 6247.3 10.2 6.36 1011 50.3 87 < 0.010 2001 6246.4 10.0 6.38 1017 51.3 86 0.040 2002 6246.5 10.0 6.34 967 41.3 90 0.030 2003 6246.8 9.9 6.44 960 36.6 91 0.020 2004 6246.3 9.7 6.43 907 32.4 93 0.020 2005 6247.4 9.4 6.47 828 29.7 90 0.026 2006 6247.9 9.7 6.47 918 27.7 92 0.018 2007 6246.5 10.3 6.37 956 27.6 102 0.018 2008 6244.7 10.8 6.55 872 22.9 93 0.021 2009 6245.5 10.3 6.18 759 20.1 77 2.988 2010 6246.4 9.3 5.80 528 21.7 48 5.659 2011 6247.4 9.3 5.96 489 12.2 26 0.140 2012 6246.4 9.7 6.28 724 17.8 0.074 2013 6245.2 10.4 6.54 823 17.6 0.016 2014 6245.1 10.0 6.34 690 20.3 0.795 2015 6244.3 10.6 6.43 761 19.5 0.011 2016 6246.0 9.5 5.75 430 17.5 6.728 Maximum 6248.5 10.8 6.55 1017 143.0 102 6.728 Minimum 6244.3 8.0 5.75 430 12.2 26 0.010 Average 6246.8 9.7 6.33 824 54.1 73 0.572 #Years 33 33 33 33 33 28 33 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 .Site: MW11 WATER QUALITY DATA Area: Buried Sludge MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6259.00 8.9 6.37 109 1.46 0.287 04/07/16 6259.06 11.4 6.33 104 1.49 0.348 07/01/16 6259.13 11.6 6.68 114 1.49 0.332 10/12/16 6259.00 10.9 6.19 110 1.62 0.263 Maximum 6259.13 11.6 6.68 114 1.62 0 0.348 Minimum 6259.00 8.9 6.19 104 1.46 0 0.263 Average 6259.05 10.7 6.39 109 1.52 0.308 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 1985 1986 1987 1988 1989 1990 1991 1992 6257.3 8.9 7.25 159 1.4 5.820 1993 6257.5 9.1 7.15 202 1.0 9.220 1994 6258.5 8.1 7.13 172 0.9 5.830 1995 6260.7 8.8 6.98 139 1.5 3.080 1996 6265.0 8.7 6.74 97 1.7 0.170 1997 6268.7 9.3 6.77 88 1.7 0.120 1998 6268.5 8.6 6.53 86 1.2 0.300 1999 6269.2 8.4 6.46 81 1.2 6 0.120 2000 6267.5 8.5 6.84 78 0.9 5 0.100 2001 6264.4 8.6 6.73 81 1.1 5 0.070 2002 6262.3 8.5 6.67 100 1.4 7 0.160 2003 6261.1 8.8 6.73 103 1.5 6 0.180 2004 6261.8 4.7 5.70 59 0.7 3 0.260 2005 6262.2 9.2 6.83 108 1.2 11 0.563 2006 6266.5 9.4 6.54 136 1.7 9 0.228 2007 6266.1 9.0 6.42 132 2.5 8 0.218 2008 6263.9 9.5 6.63 119 1.6 5 0.165 2009 6262.1 10.2 6.56 110 1.4 7 0.184 2010 6261.1 9.1 6.64 113 1.3 7 0.163 2011 6264.0 9.1 6.40 159 4.2 8 0.120 2012 6264.9 9.5 6.28 170 5.7 0.114 2013 6263.0 9.4 6.56 139 2.7 0.116 2014 6261.3 9.3 6.66 131 2.5 0.101 2015 6259.9 10.0 6.44 123 1.8 0.123 2016 6259.1 10.7 6.39 109 1.5 0.308 Maximum 6269.2 10.7 7.25 202 5.7 11 9.220 Minimum 6257.3 4.7 5.70 59 0.7 3 0.070 Average 6263.1 8.9 6.64 120 1.8 7 1.113 #Years 25 25 25 25 25 13 25 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: MW12 WATER QUALITY DATA Area: Buried Sludge MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6259.05 Dry Water level too low 04/07/16 6259.78 Dry Water level too low 07/01/16 6259.96 12.4 6.54 937.0 6.82 38.10 10/12/16 6257.71 Dry Water level too low Maximum 6259.96 12.4 6.54 937 6.82 0 38.10 Minimum 6257.71 12.4 6.54 937 6.82 0 38.10 Average 6259.13 12.4 6.54 937 6.82 38.10 4 1 1 1 1 0 1 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 1985 1986 1987 1988 1989 1990 1991 1992 6259.7 10.2 6.46 169 2.9 1.55 1993 6261.1 9.8 6.47 500 6.4 4.72 1994 6260.5 9.0 6.42 353 3.8 4.22 1995 6263.7 9.3 6.60 646 5.6 4.03 1996 6265.4 9.4 6.48 477 4.3 3.23 1997 6266.8 10.1 6.57 257 3.0 0.79 1998 6266.4 9.2 6.31 205 2.9 0.35 1999 6266.7 8.7 6.16 167 2.3 8 0.17 2000 6265.6 8.9 6.42 143 1.9 6 0.21 2001 6262.7 9.1 6.47 105 1.8 6 0.43 2002 6262.3 9.5 6.19 113 1.6 6 0.56 2003 6262.4 9.6 6.18 155 2.0 6 0.93 2004 6262.4 9.2 6.25 186 2.0 6 1.85 2005 6262.7 10.0 6.27 311 3.3 12 2.49 2006 6265.6 10.7 6.43 648 5.1 15 2.61 2007 6263.8 10.5 6.18 323 3.0 9 1.74 2008 6262.5 10.8 6.28 228 2.3 6 1.18 2009 6261.6 12.1 6.25 265 2.3 9 1.43 2010 6261.5 10.3 6.34 368 2.8 8 3.67 2011 6263.8 11.4 6.41 696 7.4 13 7.45 2012 6263.0 10.9 6.44 382 8.2 3.31 2013 6262.0 12.3 6.39 283 5.9 1.45 2014 6260.8 11.7 6.45 327 4.3 3.57 2015 6259.0 9.2 6.63 133 1.3 1.44 2016 6259.1 12.4 6.54 937 6.8 38.10 Maximum 6266.8 12.4 6.63 937 8.2 15 38.10 Minimum 6259.0 8.7 6.16 105 1.3 6 0.17 Average 6262.8 10.2 6.38 335 3.7 8 3.66 #Years 25 25 25 25 25 13 25 SOUTH TAHOE PUBLIC UTILITY DISTRICT 1/25/2017 Site: MW13 WATER QUALITY DATA Area: Buried Sludge MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 01/28/16 6255.75 6.4 6.86 515 17.5 5.47 04/07/16 6258.58 5.8 6.85 1068 18.2 60.30 07/01/16 6256.22 10.8 6.85 790 29.1 17.00 10/12/16 6253.92 10.9 6.59 601 27.8 3.60 • Maximum 6258.58 10.9 • 6.86 1068 29.1 0 60.30 Minimum 6253.92 5.8 6.59 515 17.5 0 3.60 Average 6256.12 8.5 6.79 744 23.2 21.59 4 4 4 4 4 0 4 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments , 1984 1985 1986 1987 1988 . 1989 1990 1991 1992 6255.0 8.9 6.82 1071 12.1 6.79 1993 6256.8 7.3 6.85 1310 6.3 43.39 1994 6255.3 7.8 6.82 942 6.3 17.72 1995 6257.4 7.2 6.83 1053 5.9 20.43 • 1996 6257.9 7.9 6.85 827 3.6 8.71 1997 6257.9 8.4 6.79 814 4.9 6.16 1998 6258.0 7.6 6.78 802 3.7 5.16 1999 6257.9 7.4 6.88 746 4.0 23 4.23 2000 6257.1 6.7 6.91 689 2.9 14 2.57 2001 6255.8 6.8 6.76 708 4.3 19 3.99 2002 6256.2 7.1 6.90 801 4.2 21 10.08 2003 6256.8 7.5 6.95 904 4.6 21 14.79 2004 6256.5 7.6 6.86 666 4.1 19 10.62 2005 6257.2 7.6 7.04 728 5.4 21 10.27 2006 6257.5 8.2 6.83 828 4.0 23 10.71 2007 6256.5 7.8 6.89 748 4.9 19 9.65 2008 6256.9 9.0 6.91 722 6.4 14 10.04 2009 6255.2 8.1 6.89 674 9.1 17 8.93 2010 6256.4 7.7 6.95 750 9.8 20 14.14 2011 6257.2 8.1 6.80 844 15.4 23 17.37 2012 6256.0 7.6 7.00 685 19.4 11.04 • 2013 6255.8 8.8 7.17 695 19.2 7.03 2014 6255.3 8.7 7.03 615 18.5 4.18 2015 6254.0 9.0 6.82 617 20.9 2.50 2016 6256.1 8.5 6.79 744 23.2 21.59 Maximum 6258.0 9.0 7.17 1310 23.2 23 43.39 Minimum 6254.0 6.7 6.76 615 2.9 14 2.50 Average 6256.5 7.9 6.88 799 8.9 20 11.28 #Years 25 25 25 25 25 13 25 SOUTH TAHOE PUBLIC UTILITY DISTRICT1/25/2017 Site: ERB WATER QUALITY DATA Area: Emergency Pond MONITORING WELLS Mean Sea Temp EC Chloride COD NO3-N Date Level C pH umhos mg/L mg/L mg/L Comments 07/21/16 19.0 7.63 725 66.7 0.234 09/21/16 15.9 7.48 " 631 62.7 2.430 Maximum 0.00 19.0 7.63 725 66.7 0 2.430 Minimum 0.00 15.9 7.48 631 62.7 0 0.234 Average 17.5 7.56 678 , 64.7 1.332 0 2 2 2 2 0 2 Mean Sea Temp EC Chloride COD NO3-N Year Level C pH umhos mg/L mg/L mg/L Comments 1984 1985 1986 9.0 7.35 622 81.2 66 0.580 1987 10.7 7.30 575 62.1 192 0.200 1988 4.6 6.50 713 108.9 35 1.240 1989 1990 6.85 325 25.8 125 0.080 1991 1992 1993 17.1 7.15 551 64.5 46 0.210 1994 20.7 9.47 484 72.2 20 0.100 1995 16.6 7.90 470 55.0 48 0.060 1996 12.2 7.33 434 40.9 29 0.540 1997 8.1 7.14 415 44.2 45 0.070 1998 21.9 6.63 556 44.9 24 0.040 1999 Dry 2000 2001 18.9 7.91 596 60.2 42 0.120 2002 Dry 2003 Dry 2004 3.0 3.37 174 20.2 9 0.040 2005 15.4 7.59 599 57.9 39 0.798 2006 16.78 MG stored 2007 Dry 2008 3.51 MG stored 2009 16.4 7.25 569 60.4 61 0.084 2010 19.6 7.81 629 45 2011 4.8 7.63 481 37.4 26 0.108 2012 Dry 2013 Dry 2014 14.4 7.47 607 67.3 0.423 2015 Dry 2016 17.5 7.56 678 64.7 1.332 Maximum 0.0 21.9 9.47 713 108.9 192 1.332 Minimum 0.0 3.0 3.37 174 20.2 9 0.040 Average 13.6 7.23 527 56.9 53 0.354 , #Years 0 17 18 18 17 16 17 ERB and Plant Monitoring Wells WATER LEVEL WATER LEVEL Mean Sea Level Mean Sea Level 6295- 6290 6285 6290 6280 6285 ♦ 6275 I 6280: 6270 W 6275 ti :• 6265 OL LL 6260 ' 6270 6255 6265 6250 6260 6245 .�f 6255 6240 —.—Control —.—MW01.5 —e—MW02 tMW03 tMW04 --MW07 —s—MW08 NITRATE-NITROGEN NITRATE-NITROGEN 30 5 25 4 20 J J OI 15 3 EA....,VE 2 10 1 I 5 A 01 —.—Control tMW01.5 ---MW02 --.—MW03 --•—•MWO4 --a—MW07 tMW08 ERB and Plant Monitoring Wells CHLORIDES CHLORIDES • 100 t 150 140= 90 130 : 80 120 110 r' 70- 100f 60 90 J _ / ` 80 E50 / E 70 40 60 50 : ■ 30 _ 40 20 30 - • ! • � 20 y 10 _ 10 0 0 i i 1 1 r °I .2 1 1 8 N g 1 w a a w r g m g m g&' m &' m S 8 A 8 N w w w w —e—Control —0--MW01.5 —•,—MW02 —0--MWO3 tMWO4 —•—•MWO7 —s—MWO8 CONDUCTIVITY CONDUCTIVITY 1000 1200 900- 1000 800 700 800 N 600 , N t500 - r ‘ t 600 E :■7 41.111\ E 7 400 �► 3 400 300 200; 200 •-• • •–! 100 • 0 i r 1 1 ' 1 il 8 S w $ N N N a N g N g i 1 1 S 8 � 8 8 w a N n •—•—•Control - MWO1.5 —e—MWO2 —6--MWO3 —.—MWO4 —a-MWO7 tMWO8 mg/L Feet O N O N O N NN NNNNN N (All Si On 01 O 000 CO O Ci CO 1992 F 1992 I 1993 1994 4 1993 1994 1995 1995 1996 I, 1996 1997 , 1997 f 1998 1999 I 1998 Tl 1999 • 2000 * g 2000 c 2001 C) G 2001 2002- , 1 I I� 2002 7 m f 2003. IF 2003 Cn 730 .. 2004 I CI E z� r r- * 2005 A RI N N 2995 A m 2006 O N 2006 r 2007 III 2007 2008 E 2008 • 2009 * 2009 , CJ- 2010 (q 2010 2011 2011 2012 2012 2013 2013 2014 2014 / 2015 2015 I / CO 2016 2016 ' "I CD CL E 0 •0 7� CO umhos mg/L C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 N O N O CO O N O GO O G 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 CD T 1992 1992 N 1993 1993 11110100 1994 1994 1995 1995 1996 1996 1997 1997 I f 1998, 1998 1999 1999IP CE 2000 C 2000 �}}�� j 20010 G 2001 [� 1 Z 2002 2002 0f ::: C 2003 2004 '1 CgC J+ 2004 .1 G C 2005 0 2005 I") 2006 N 2006 YI I, 2007 f2007 Z 2008 2008 C 2009. * 2009, 1 CJ 2010 - W 2010• 2011 2011• 2012 2012• 2013 2013 2014' 2014• / 2015 2015 2016 2016 e HARVEY PLACE RESERVOIR SOUTH TAHOE PUBLIC UTILITY DISTRICT HARVEY PLACE RESERVOIR DATA SUMMARY From: January 1,2016 To: December 31,2016 Temp NH3+ NH3-N Org-N TKN NO3-N NO2-N Total N PO4-P Total P Alk MBAS D.O. D.O.% Date pH C NH4 mg/I mg/I mg/I mg/I mg/I mg/L mg/I mg/I mg/I mg/I mg/I Saturation 01/05/16 01/14/16 7.56 6.1 19.40 0.095 1.80 21.2 '4.77 0.27 26.20 2.56 2.90 141 02/02/16 7.20 3.5 18.20 0.032 3.30 21.5 4.15 0.25 25.90 2.24 2.45 134 10.30 94.7 03/01/16 6.92 7.9 18.90 0.025 1.60 20.5 3.57 0.17 24.20 2.40 2.59 136 10.70 109.9 04/05/16 7.57 11.3 17.00 0.129 2.50 19.5 3.20 0.18 22.90 2.35 2.54 129 8.99 100.3 05/03/16 7.75 12.1 16.70 0.203 1.60 18.3 2.77 0.17 21.20 2.40 2.45 127 5.81 65.8 06/02/16 7.71 18.4 16.20 0.287 2.50 18.7 2.19 0.33 21.20 2.22 2.53 128 7.38 96.1 07/06/16 6.88 20.9 14.00 0.045 2.70 16.7 2.76 0.93 20.40 2.75 2.81 122 5.97 82.1 07/12/16 8.04 23.6 08/02/16 8.69 22.2 8.14 1.508 3.16 11.3 4.44 1.54 17.20 2.63 3.17 96 12.84 180.1 09/07/16 8.04 17.9 9.68 0.347 2.12 11.8 2.22 0.72 14.70 3.22 3.80 122 6.09 78.3 10/06/16 7.58 10.7 15.90 0.118 3.30 19.2 2.79 1.64 23.60 3.47 3.91 145 4.26 46.8 11/02/16 7.02 8.2 16.20 0.027 2.60 18.8 3.17 1.78 23.70 2.46 2.74 131 9.02 92.6 12/06/16 7.66 3.8 20.10 0.103 1.20 21.3 2.44 1.24 25.00 2.65 2.98 146 11.65 109.1 Maximum 8.69 23.6 20.10 1.508 3.30 21.5 4.77 1.78 26.20 3.47 3.91 146 12.84 180.1 Minimum 6.88 3.5 8.14 < 0.025 1.20 11.3 2.19 0.17 14.70 2.22 2.45 96 4.26 46.8 Average 7.59 12.8 15.87 0.243 2.37 18.2 3.21 0.77 22.18 2.61 2.91 130 8.46 96.0 #Years 13 13 12 12 12 12 12 12 12 12 12 12 0 11 11 SOUTH TAHOE PUBLIC UTILITY DISTRICT HARVEY PLACE RESERVOIR DATA SUMMARY From: January 1,2016 To: December 31,2016 Water COD BOD CL- TDS S.S. Turb EC Ca Na Mg SAR Level Flow % Ice Date mg/I mg/I mg/I mg/I mg/I NTU uS/cm mg/I mg/I mg/I ft. acre-ft Cover 01/05/16 35.0 75 01/14/16 5.36 52.8 262 15.20 3.00 590 18.0 54.1 4.29 2.97 36.6 40 02/02/16 3.28 50.7 251 6.01 4.80 548 16.1 46.1 3.70 2.69 41.0 10 03/01/16 5.26. 50.5 248 62.50 6.30 523 17.8 48.6 3.94 2.71 44.5 0 04/05/16 2.42 56.0 251 1.64 1.60 513 16.7 50.6 3.94 2.89 49.0 0 05/03/16 4.55 56.4 252 0.56 1.50 544 16.9 52.7 3.90 3.00 49.6 0 06/02/16 19.80 58.7 248 24.10 4.00 522 17.6 52.4 3.91 2.94 52.0 0 07/06/16 59.9 264 16.40 5.20 - 534 19.1 54.6 3.98 2.97 49.3 0 07/12/16 6.88 491 08/02/16 16.60 61.2 278 28.60 10.00 489 18.2 54.1 4.23 2.97 42.3 0 09/07/16 10.70 63.6 276 8.68 3.80 539 19.8 59.7 4.49 3.15 28.0 0 10/06/16 5.86 61.1 226 13.80 8.80 587 18.7 62.7 4.41 3.39 10.5 0 11/02/16 5.14 51.9 265 20.00 5.00 546 19.0 53.0 4.37 2.85 19.3 0 12/06/16 4.93 55.4 262 17.40 4.30 545 20.4 53.2 4.16 2.80 28.3 0 i Maximum 0.0 19.80 63.6 278 62.50 10.00 590 20.4 62.7 4.49 3.39 52.0 0 75 Minimum 0.0 2.42 50.5 226 0.56 1.50 489 16.1 46.1 3.70 2.69 10.5 0 0 Average 7.57 56.5 257 17.91 4.86 536 18.2 53.5 4.11 2.94 37.3 10 #Years 0 12 12 12 12 12 13 12 12 12 12 13 0 13 SOUTH TAHOE PUBLIC UTILITY DISTRICT HARVEY PLACE RESERVOIR DATA SUMMARY From: January 1,2016 To: December 31,2016 Coliforms Fecal Air Algae Weeds Total Fecal/E.coli Strep Temp SO4 Boron Date MPN MPN MPN C mg/L mg/L Comments 01/05/16 -0.1 01/14/16 No No 2,143 6.3 10.0 18.9 02/02/16 No Yes 196 < 1 -0.1 17.8 03/01/16 No No 1,050 20 25.0 17.8 04/05/16 No Yes 29 < 1 11.4 16.0 05/03/16 Yes No 148 2 7.0 16.5 06/02/16 Yes Yes 30,760 50.4 20.4 15.8 07/06/16 Yes Yes 173,290 6.3 14.3 16.3 07/12/16 08/02/16 Yes Yes > 2,419 79.8 29.0 15.6 09/07/16 Yes Yes 122 7.3 13.9 15.7 10/06/16 Yes Yes 1,120 920.8 11.6 19.7 11/02/16 Yes No 276 4.1 10.5 22.3 12/06/16 No No 1,860 1 18.5 21.0 Maximum > 173,290 920.8 0.0 29.0 22.3 0.00 Minimum < 29 < 1.0 < 0.0 -0.1 15.6 0.00 Average 17,784 91.7 13.2 17.8 #Years 14 14 12 12 0 13 12 0 SOUTH TAHOE PUBLIC UTILITY DISTRICT HARVEY PLACE RESERVOIR DATA SUMMARY From: 1989 To: 2016 Temp NH3+ NH3-N Org-N TKN NO3-N NO2-N Total N PO4-P Total P Alk MBAS D.O. D.O. Year pH C NH4 mg/I mg/I mg/I mg/I mg/I mg/L mg/I mg/I mg/I mg/I mg/I %SAT 89 8.10 13.6 8.59 0.264 1.63 10.22 4.94 0.14 15.29 1.94 2.21 70 0.040 8.64 101.02 90 8.40 14.5 6.71 1.012 4.58 11.30 5.86 0.22 17.37 2.73 3.20 72 0.080 8.51 102.85 91 7.72 13.9 2.78 0.103 1.63 4.41 9.93 0.27 14.61 2.52 2.89 53 0.060 7.23 87.49 92 7.73 14.3 4.69 0.083 1.61 6.30 8.25 0.32 14.87 3.60 3.86 61 0.070 7.30 86.26 93 7.76 12.3 7.84 0.119 1.20 9.04 5.03 0.23 14.30 2.90 3.05 70 0.060 7.49 84.49 94 7.80 11.1 15.53 0.223 1.65 16.82 2.85 0.32 19.99 3.16 3.18 118 0.080 7.25 80.39 95 7.82 13.0 16.25 0.308 2.86 18.55 0.82 0.13 19.51 2.26 2.49 119 0.060 8.11 93.85 96 7.80 13.8 14.06 0.472 1.88 15.85 1.12 0.27 17.24 2.06 2.13 116 0.060 7.44 89.74 97 7.71 12.2 12.26 0.165 0.88 12.28 1.37 0.23 13.88 1.77 2.03 100 0.030 7.48 83.93 98 7.65 11.7 13.90 15.58 1.73 0.31 17.63 2.27 2.28 110 0.070 7.83 90.18 99 7.51 12.3 14.47 0.121 1.78 15.69 1.39 0.34 17.42 2.05 2.26 106 0.060 6.63 69.93 00 7.95 12.9 15.74 0.696 2.83 18.23 0.93 0.31 19.47 2.26 2.50 110 0.070 8.29 99.53 01 7.94 12.8 15.57 0.608 2.10 17.51 1.26 0.49 19.26 2.33 2.57 107 8.36 103.10 02 7.79 13.2 12.87 0.408 2.33 15.21 2.10 0.52 17.83 2.22 2.51 99 8.64 104.13 03 7.76 12.5 15.98 0.287 2.49 18.29 1.20 0.56 20.05 2.26 2.44 113 7.31 77.82 04 7.85 11.9 17.37 0.477 19.57 1.10 0.31 20.84 2.55 2.75 116 7.52 75.17 05 7.96 11.6 15.21 0.617 1.28 16.23 1.16 0.36 17.76 2.66 2.70 130 8.63 97.22 06 7.68 11.9 14.57 0.391 1.68 16.23 0.93 0.21 17.37 2.22 2.36 127 8.37 92.53 07 8.41 12.5 16.72 1.456 2.35 19.26 0.56 0.29 20.11 2.85 3.06 151 9.65 104.52 08 8.21 11.2 15.05 0.974 1.55 16.60 1.69 0.62 18.91 2.86 3.08 133 7.82 82.84 09 8.07 11.1 16.56 0.526 1.70 18.10 1.97 0.51 20.58 2.87 3.07 139 6.82 76.61 10 7.93 10.7 15.92 0.430 0.38 15.07 1.75 0.54 17.35 2.58 2.79 140 6.66 71.41 11 7.90 11.3 12.64 0.430 2.49 14.97 1.96 0.72 17.65 2.00 2.26 117 7.38 82.91 12 7.60 12.0 15.36 0.291 17.90 18.20 2.90 0.61 21.70 2.53 2.59 133 6.54 72.70 13 8.17 11.4 12.02 0.943 5.51 17.53 3.87 0.60 22.01 2.13 2.44 113 8.97 94.88 14 8.23 11.3 14.45 1.106 2.50 16.95 2.80 0.49 20.24 2.56 2.98 130 7.37 77.79 15 7.86 12.0 15.23 0.388 2.63 17.86 4.84 0.45 23.13 2.64 2.87 124 8.55 95.65 16 7.59 12.8 15.87 0.243 2.37 18.23 3.21 0.77 22.18 2.61 2.91 130 8.46 95.98 Maximum 8.41 14.5 17.37 1.456 17.90 19.57 9.93 0.77 23.13 3.60 3.86 151 0.080 9.65 104.52 Minimum 7.51 10.7 2.78 0.083 0.38 4.41 0.56 0.13 13.88 1.77 2.03 53 0.030 6.54 69.93 Average 7.89 12.4 13.36 0.487 2.76 15.36 2.77 0.40 18.52 2.48 2.70 111 0.062 7.83 88.39 #Years 28 28 28 27 26 28 28 28 28 28 28 28 12 28 28 SOUTH TAHOE PUBLIC UTILITY DISTRICT HARVEY PLACE RESERVOIR DATA SUMMARY From: 1989 To: 2016 Water COD BOD Cr TDS SS Turb EC Ca Na Mg SAR Level Flow % Ice Year mg/I mg/I mg/I mg/I mg/I NTU uS/cm mg/I mg/I mg/I ft. acre-ft Cover 89 25.3 2.95 89.2 357 21.37 18.87 635 19.6 92.9 3.26 4.88 38.05 491 5 90 32.4 4.92 93.5 355 9.33 5.82 616 16.6 86.2 3.41 5.04 40.94 303 4 91 23.9 3.82 91.7 369 20.36 5.99 595 16.4 84.3 3.55 4.91 38.50 4 92 28.0 4.25 72.0 312 7.83 3.88 496 16.2 72.7 3.28 4.31 39.08 6 93 29.1 5.92 53.2 241 29.42 5.63 413 14.9 45.5 3.26 2.71 42.48 17 94 27.8 6.01 70.2 268 7.56 3.82 548 18.5 53.3 3.86 2.94 38.43 10 95 25.1 4.70 50.8 226 7.09 3.87 482 16.3 41.3 3.53 2.41 42.54 1 96 23.7 4.53 47.3 225 4.81 3.53 462 16.4 46.4 3.58 2.70 43.75 0 97 18.6 2.93 44.5 205 7.07 5.98 415 14.8 38.0 3.38 2.28 45.44 0 98 20.6 3.53 49.6 226 5.20 3.67 461 15.0 43.4 3.31 2.64 41.92 12 99 27.7 4.19 48.8 221 11.53 5.25 450 14.4 42.1 3.42 2.59 40.74 2 00 31.9 6.21 53.6 227 16.80 3.67 466 15.7 44.6 3.53 2.68 40.98 0 01 43.8 5.79 61.3 243 26.09 7.40 490 16.2 45.8 3.68 2.67 40.93 3 02 29.7 5.23 57.5 237 9.32 4.04 466 15.4 44.8 3.51 2.68 37.39 0 03 31.3 4.75 56.8 235 8.38 4.14 484 15.3 45.2 3.53 2.71 40.90 0 04 31.3 4.53 57.9 236 5.81 4.08 504 16.0 43.5 3.69 2.54 38.15 3 05 35.9 6.81 52.7 242 11.57 4.48 447 16.4 46.4 3.50 2.70 38.66 16 06 39.9 7.35 44.3 222 17.56 12.67 397 14.5 42.4 3.29 2.60 38.80 12 07 45.3 9.14 53.3 257 13.78 7.40 515 17.1 54.1 3.80 3.08 36.81 1 08 47.0 9.62 52.6 248 14.55 8.09 495 16.2 52.1 3.73 3.03 37.73 8 09 40.2 7.48 50.9 251 8.97 5.17 530 16.7 52.8 3.92 2.95 37.74 0 10 40.8 8.42 48.5 247 8.41 5.14 514 16.8 24.0 4.07 1.37 39.29 12 11 39.8 8.14 42.6 218 24.21 12.21 435 16.2 22.4 3.71 2.50 41.22 8 12 8.13 50.2 245 21.83 6.58 501 17.3 49.9 3.78 2.83 34.83 0 13 9.01 48.7 246 17.10 8.06 457 17.3 49.5 3.81 2.80 37.24 13 14 8.53 51.6 259 12.69 6.71 516 18.0 52.3 4.06 2.89 39.46 5 15 11.52 52.2 269 62.20 10.78 534 18.0 53.4 4.20 2.95 32.40 5 16 7.57 56.5 257 17.91 4.86 536 18.2 53.5 4.11 2.94 37.33 10 Maximum 47.0 11.52 93.5 369 62.20 18.87 635 19.6 92.9 4.20 5.04 45.44 491 17 Minimum 18.6 2.93 42.6 205 4.81 3.53 397 14.4 22.4 3.26 1.37 32.40 303 0 Average 32.1 6.28 57.2 255 15.31 6.49 495 16.4 50.8 3.63 2.98 39.35 397 6 #Years 23 28 28 28 28 28 28 28 28 28 28 28 2 28 SOUTH TAHOE PUBLIC UTILITY DISTRICT HARVEY PLACE RESERVOIR DATA SUMMARY From: 1989 To: 2016 Coliforms Fecal Air Algae Weeds Total Fecal/E coil Strep Temp SO4 Boron Year MPN MPN MPN C mg/L mg/L Comments 89 125 7 60 17.2 90 275 3 17 18.2 42.8 0.32 91 64 4 30 17.1 41.2 0.37 92 991 94 203 16.6 35.1 0.33 93 633 9 280 15.1 23.2 0.22 94 505 6 422 11.4 26.8 0.26 95 107 14 112 12.9 24.2 0.17 96 374 11 97 16.0 19.9 0.19 97 2 < 2 < 2 5.9 13.1 0.08 98 192 4 56 7.5 19.3 0.14 99 460 4 97 13.0 19.1 0.20 00 363 6 73 15.5 19.1 0.22 01 533 187 78 13.2 19.5 0.24 02 128 25 178 20.3 18.2 0.22 03 309 26 33 13.0 19.3 0.19 04 204 20 28 12.4 17.9, 0.25 05 1,516 46 194 13.5 16.8 0.24 06 341 53 168 14.5 14.3 0.16 07 111 57 34 12.5 15.4 0.22 08 197 35 164 14.0 16.4 0.24 09 393 16 6 12.1 17.6 0.17 10 539 83 5 10.4 16.2 0.18 11 477 8 29 9.9 13.0 0.15 12 745 168 30 11.7 17.1 0.16 13 556 18 20 13.6 16.7 0.16 14 403 47 52 10.4 16.4 0.19 15 24,369 77 12.6 20.1 0.22 16 17,784 92 13.2 17.8 Maximum 24,369 187 422 20.3 42.8 0.37 Minimum 2 2 2 5.9 13.0 0.08 Average 1882 40 95 13.3 20.6 0.23 #Years 0 0 28 28 26 28 27 26 HARVEY PLACE RESEREVOIR NO3-N &NH3-N Total Phosphorus 20 6 18 5 16 14 4 12 sth- 10 Tth 3 \Ark- V-i4-A-A 8 2 6 4 1 2 O O 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —A—NO3-N +NH3-N —t—Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 140 500 450 120 - 400 100 • 350 : - J 80 300 "en of 250 : --__sr E 60 • E 200 : 40 150 : 100 : 20 50 : • 0 0 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —A—Chlorides Linear(Chlorides) —A—TDS Linear(TDS) Harvey Place Reservoir Recycled Water Current Storage • Not including 200+/-acre-foot dead pool Maximum Storage,Acre-feet: 3,800 Stored Remaining Date Acre-feet Acre-feet 01/01/14 693 3,107 02/01/14 1,043 2,757 03/01/14 1,357 2,443 04/01/14 1,646 2,154 05/01/14 1,864 1,936 06/01/14 1,966 1,834 07/01/14 1,528 2,272 08/01/14 866 2,934 09/01/14 235 3,565 10/01/14 80 3,720 11/01/14 220 3,580 12/01/14 410 3,390 01/01/15 643 3,157 02/01/15 953 2,847 • 03/01/15 1,248 2,552 04/01/15 1,448 2,352 05/01/15 1,626 2,174 06/01/15 1,744 2,056 07/01/15 1,395 2,405 08/01/15 693 3,107 09/01/15 91 3,709 10/01/15 67 3,733 11/01/15 217 3,583 12/01/15 446 3,354 01/01/16 743 3,057 02/01/16 1,185 2,615 03/01/16 1,493 2,307 04/01/16 1,875 1,925 05/01/16 2,104 1,696 06/01/16 2,322 1,478 07/01/16 2,139 1,661 08/01/16 1,304 2,496 09/01/16 595 3,205 10/01/16 72 3,728 11/01/16 243 3,557 12/01/16 479 3,321 E:IHPR\HPR Current Storage-Lahontan_Reportads Acre-feet W W .P a, b U1 O 01 O 01 O O O O O O O O O O O O O O O O O O • 01/14 02/14 03/14 04/14 ' 05/14 06/14 07/14 08/14 70 09/14 CD ID 10/14 11/14 0 CD 12/14 C 01/15 O. 02/15 S. 03/15 � n na 04/15 05/15 • 06/15 _ I CD Cn 07/15 0 pia 0 08/15 • o O 09/15 10/15 CD n 11/15 • 12/15 • 01/16 02/16 03/16 04/16• 05/16 • 06/16 07/16 08/16 09/16 10/16 11/16 12/16 INDIAN CREEK RESERVOIR INDIAN CREEK RESERVOIR MONITORING Indian Creek Reservoir(ICR) is a 3,160 acre-foot capacity fresh water reservoir, located in the northeast portion of Alpine County, California (Figure 1). The ICR was constructed in 1967 for the temporary storage of treated wastewater. Since 1989, all make-up water for the ICR has been provided by fresh water diversions from Indian Creek and the West Fork of the Carson River. In 2002, the Lahontan Regional Water Quality Control Board (LRWQCB) adopted draft amendments to the water quality control plan for the Lahontan Region.These amendments included Interim Target and Final Target Total Maximum Daily Load (TMDL) numerical limits for five (5) indicator parameters at the ICR: Total Phosphorus (TP); Dissolved Oxygen (DO); Secchi Depth; Chlorophyll a; and Carlson Trophic State Index(TSI). In 2005, Alex Horne Associates consultant completed a pre-design for an in-reservoir oxygenation system (a hypolimnetic oxygenation system or HOS) for the ICR. Operation of the oxygenation system is designed to improve water quality by reducing phosphorus and chlorophyll a levels; improve fisheries habitat by increasing DO content within the hypolimnion; and lower the TSI of the ICR. ICR TMDL Ob'ectives Target Value Target value Indicator Long Term Interim Total Phosphorus, mg/L 0.02 0.04 Dissolved Oxygen: Not Depressed, percent or <_ 10 Saturation, percent or >_ 80 Concentration, mg/L >_ 7.0 30-day mean, mg/L 6.5 7-day minimum, mg/L 5.0 1-day minimum, mg/L 4.0 Secchi Depth, meters >_ 2 >_ 2 feet >_ 6.6 >_ 6.6 Chlorphyll a, mg/m3 <_ 10 <_ 10 Carlson Trophic Status Index s 45 <_ 45 The HOS is comprised of a Speece Cone, which was installed at ICR in Nov/December 2008. The equipment building, electrical and controls instrumentation installation was completed near the start of the 2nd quarter of 2009. Regular operation of the HOS started in June 2009. Indian Creek Reservoir Sample Sites .., 0...2, f, ..:,..4.. ...r"...• ;. '. • _ ...., . . . . * , ‘'.3S - 71 —Iihtte•• ••-•:.' • '; ' - .1 ..""1 T.. '..:::.... .1.4' ..-• -Je.i. •-).,, a ICR01.74t •Iikr.....41- , , '' .lirii- -- ---,--.-..,1,..*!..k -•,•.' , •_.. —.. ,,.,:r I..4••,-,1 ,r,,-,.1..., i ICR-06 . • ---tt:,. ' 1_,..- ...,00.-; -*V .4,414tit, % - ..----..4 . :1,r' ..!..4- "47•-;...A.3-- ,-, , • . . . , . .-0, = ' -..9,-, ii,..S., t . ,...' --...:... .k,ci-;. .."-y-: '17 • • . - ,,,,,.. .4.-;„ 4., 16,. „,...e,•:.% tr*:_ _..t ,-.43.* 4' is' --= --... ';-.'!-:--.A" -‘• idt,"•••• ...1.,:.. • *>ritic°4." ' ' • ICR-O7 . ., 4 't , TV4t I -.%- tt. t-,; -:• "'--•• iit. • `• 7''.. ' ,'„• -•.""-- ._-int,: .,•.,•. , : ' - •is k Aiti,1 4. ;'t :'_ -*/4"..4 4 1':ev.,‘• • ill... '.. ,.041'--•••••.1 it •.$: —7.- it.'••:-t-'1,r ' - ',•; Ali '-,.•'... le 40fr..f...; . -. ,1. -.. .74,...!... . . .; ., ...„. • 'R-os -, 4 . * dr -- , . 1 ,.. :, • . 1.1-:-..,*. - ,.• - ,, \ •-Ma - 1,.'4? .... teR•433 it 4,t lis . * , . Ii. 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' Eye ait 93 SOUTH TAHOE PUBLIC UTILITY DISTRICT INDIAN CREEK RESERVOIR DATA SUMMARY 2016 Secchl NH3+ Depth Total P D.O. D.O. Chlorophyll Depth NH4 NH3-N Org-N TKN NO3-N NO2-N Total N PO4-P Date Site Ft mq/I mq/I %SAT mg/m' ft. mq/L mg/I mg/I mq/I mq/I mq/I mq/L mq/I 02/10/16 ICR-01 0.5 0.037 11.40 86.3 7.0 7.50 0.068 < 0.020 0.758 0.826 0.110 < 0.010 0.936 0.011 02/10/16 ICR-01 18.0 0.045 11.40 86.1 5.0 0.067 < 0.020 0.693 0.760 0.110 < 0.010 0.870 0.012 02/10/16 ICR-01 36.0 0.034 11.30 85.4 4.0 0.067 < 0.020 0.669 0.736 0.113 < 0.010 0.849 0.012 02/10/16 ICR-03 0.5 0.036 11.60 90.5 6.0 6.81 0.056 < 0.020 0.673 0.729 0.109 < 0.010 0.838 0.011 02/10/16 ICR-03 21.0 0.042 11.40 87.1 6.0 0.059 < 0.020 0.706 0.765 0.108 < 0.010 0.873 0.012 02/10/16 ICR-05 0.5 0.034 11.70 90.7 6.0 6.90 0.051 "< 0.020 0.632 0.683 0.106 < 0.010 0.789 0.011 03/16/16 ICR-01 0.5 0.026 11.80 96.8 3.0 11.30 0.036 < 0.020 0.573 0.609 0.042 < 0.010 0.651 < 0.010 03/16/16 ICR-01 21.0 0.034 11.70 96.6 4.0 0.025 < 0.020 0.607 0.632 0.042 < 0.010 0.674 < 0.010 03/16/16 ICR-01 42.0 0.029 7.54 61.4 4.0 0.025 < 0.020 0.675 0.700 0.039 < 0.010 0.739 0 0.010 03/16/16 ICR-03 0.5 0.029 11.90 97.7 3.0 9.70 0.032 < 0.020 0.632 0.664 0.039 < 0.010 0.703 < 0.010 03/16/16 ICR-03 24.0 0.031 11.60 93.9 3.0 0.031 0 0.020 0.614 0.645 0.043 < 0.010 0.688 < 0.010 • 03/16/16 ICR-05 0.5 0.033 11.80 97.1 3.0 9.65 0.025 < 0.020 0.638 0.663 0.042 < 0.010 0.705 0 0.010 04/12/16 ICR-01 0.5 0.026 8.91 83.3 4.0 12.75 0.041 < 0.020 0.563 0.604 0.016 < 0.010 0.620 < 0.010 04/12/16 ICR-01 18.0 0.031 8.47 76.6 3.0 0.045 < 0.020 0.563 0.608 0.020 < 0.010 0.628 < 0.010 04/12/16 ICR-01 36.0 0.034 7.08 60.9 3.0 0.078 < 0.020 0.556 0.634 0.049 < 0.010 0.683 0.014 04/12/16 ICR-03 0.5 0.025 8.97 83.2 4.0 10.54 0.040 < 0.020 0.606 0.646 0.015 < 0.010 0.661 < 0.010 • 04/12/16 ICR-03 21.0 0.026 8.55 76.9 3.0 0.039 < 0.020 0.496 0.535 0.015 < 0.010 0.550 < 0.010 04/12/16 ICR-05 0.5 0.026 8.97 82.6 4.0 10.73 0.041 < 0.020 0.566 0.607 0.015 < 0.010 0.622 < 0.010 05/10/16 ICR-01 0.5 0.023 10.74 104.9 2.0 14.05 0 0.020 < 0.020 0.619 0.619 < 0.010 0 0.010 0.619 < 0.010 05/10/16 ICR-01 18.0 0.025 11.40 107.5 2.0 < 0.020 < 0.020 0.567 0.567 < 0.010 < 0.010 0.567 < 0.010 05/10/16 ICR-01 36.0 0.033 10.78 100.7 < 2.0 < 0.020 < 0.020 0.645 0.645 < 0.010 < 0.010 0.645 < 0.010 05/10/16 ICR-03 0.5 0.023 10.69 105.1 4.0 12.40 0.020 < 0.020 0.584 0.604 < 0.010 < 0.010 0.604 < 0.010 05/10/16 ICR-03 21.0 0.021 11.87 112.2 < 2.0 < 0.020 < 0.020 0.587 0.587 < 0.010 < 0.010 0.587 < 0.010 05/10/16 ICR-05 0.5 0.023 10.96 107.4 < 2.0 13.20 < 0.020 < 0.020 0.628 0.628 < 0.010 < 0.010 0.628 < 0.010 06/22/16 ICR-01 0.5 0.026 8.99 95.8 8.0 10.80 < 0.020 < 0.020 0.508 0.508 < 0.010 < 0.010 0.508 < 0.010 06/22/16 ICR-01 14.0 0.023 8.99 95.5 5.0 < 0.020 < 0.020 0.516 0.516 < 0.010 < 0.010 0.516 < 0.010 06/22/16 ICR-01 38.8 0.031 7.71 78.5 < 2.0 0.053 < 0.020 0.447 0.500 < 0.010 < 0.010 0.500 0.012 . 06/22/16 ICR-03 0.5 0.021 9.04 95.5 < 2.0 0.023 < 0.020 0.436 0.459 < 0.010 < 0.010 0.459 < 0.010 06/22/16 ICR-03 26.0 0.023 7.68 78.4 < 2.0 0.035 < 0.020 0.448 0.483 < 0.010 < 0.010 0.483 0.010 06/22/16 ICR-05 0.5 0.020 9.19 97.0 a 2.0 < 0.020 < 0.020 0.477 0.477 < 0.010 < 0.010 0.477 < 0.010 07/14/16 ICR-01 0.5 0.029 9.44 104.4 7.0 14.40 0.021 < 0.020 0.614 0.635 a 0.010 < 0.010 0.635 < 0.010 07/14/16 ICR-01 21.0 0.031 8.88 95.8 < 2.0 0.028 < 0.020 0.527 0.555 < 0.010 < 0.010 0.555 < 0.010 07/14/16 ICR-01 39.0 0.044 8.09 86.9 0 2.0 0.061 < 0.020 0.629 0.690 0.010 < 0.010 0.700 < 0.010 07/14/16 ICR-03 0.5 0.028 9.49 104.8 9.0 12.40 < 0.020 < 0.020 0.588 0.588 0.048 < 0.010 0.636 < 0.010 07/14/16 ICR-03 24.0 0.030 9.14 98.7 2.0 0.028 < 0.020 0.508 0.536 0.010 < 0.010 0.546 < 0.010 07/14/16 ICR-05 0.5 0.028 9.83 109.2 7.0 10.80 < 0.020 < 0.020 0.594 0.594 < 0.010 < 0.010 0.594 < 0.010 08/03/16 ICR-01 0.5 0.029 7.88 90.8 8.0 9.25 < 0.020 < 0.020 0.641 0.641 < 0.010 < 0.010 0.641 < 0.010 08/03/16 ICR-01 21.0 0.024 5.44 58.9 < 2.0 0.055 < 0.020 0.456 0.511 < 0.010 < 0.010 0.511 < 0.010 08/03/16 ICR-01 39.0 0.135 0.49 5.3 0 2.0 0.339 < 0.020 0.527 0.866 0.012 < 0.010 0.878 0.062 08/03/16 ICR-03 0.5 0.028 7.95 91.4 13.0 10.23 < 0.020 < 0.020 0.665 0.665 < 0.010 < 0.010 0.665 < 0.010 08/03/16 ICR-03 24.0 0.042 3.75 40.4 3.0 0.106 < 0.020 0.458 0.564 0.015 < 0.010 0.579 0.018 08/03/16 ICR-05 0.5 0.024 8.10 92.5 5.0 10.74 < 0.020 < 0.020 0.673 0.673 < 0.010 a 0.010 0.673 < 0.010 09/15/16 ICR-01 1.1 0.034 9.69 99.3 14.0 8.65 < 0.020 < 0.020 0.770 0.770 < 0.010 < 0.010 0.770 < 0.010 • 09/15/16 ICR-01 17.7 0.036 9.65 98.4 18.0 < 0.020 < 0.020 0.757 0.757 a 0.010 a 0.010 0.757 < 0.010 09/15/16 ICR-01 36.1 0.038 9.38 95.1 9.0 < 0.020 < 0.020 0.807 0.807 < 0.010 < 0.010 0.807 a 0.010 09/15/16 ICR-03 1.1 0.034 9.67 99.4 16.0 8.30 < 0.020 < 0.020 0.752 0.752 < 0.010 a 0.010 0.752 < 0.010 09/15/16 ICR-03 21.2 0.039 9.40 95.7 15.0 < 0.020 < 0.020 0.833 0.833 < 0.010 < 0.010 0.833 a 0.010 09/15/16 ICR-05 1.0 0.039 9.53 97.6 15.0 8.70 < 0.020 < 0.020 0.809 0.809 < 0.010 < 0.010 0.809 a 0.010 10/26/16. ICR-01 0.5 Too windy 11/03/16 ICR-01 0.5 0.055 9.67 82.9 130.0 4.50 < 0.020 < 0.020 1.520 1.520 0.020 < 0.010 1.540 < 0.010 11/03/16 ICR-01 18.0 0.052 9.31 79.4 36.0 < 0.020 < 0.020 1.120 1.120 0.015 < 0.010 1.140 < 0.010 11/03/16 ICR-01 36.0 0.040 9.27 78.9 39.0 < 0.020 < 0.020 0.977 0.977 0.013 < 0.010 0.990 < 0.010 11/03/16 ICR-03 0.5 0.041 9.37 80.0 45.0 6.39 0.025 < 0.020 0.927 0.952 0.013 < 0.010 0.965 a 0.010 11/03/16 ICR-03 21.0 0.039 9.21 78.5 25.0 0.022 < 0.020 0.928 0.950 0.014 < 0.010 0.964 < 0.010 11/03/16 ICR-05 0.5 0.033 9.34 79.6 24.0 5.95 0.030 < 0.020 0.887 0.917 0.013 < 0.010 0.930 < 0.010 12/28/16 ICR-01 Frozen Maximum 42.0 0.135 11.90 112.2 130.0 14.40 0.339 0.020 1.520 1.520 0.113 < 0.010 1.540 0.062 Minimum 0.5 0.020 0.49 5.3 < 2.0 4.50 < 0.020 < 0.020 0.436 0.459 < 0.010 < 0.010 0.459 < 0.010 Average 13.2 0.034 9.37 88.1 10.3 9.87 0.039 0.020 0.660 0.691 0.027 a 0.010 0.714 0.011 #Samples 55 54 54 54 54 25 54 54 54 54 54 54 54 54 SOUTH TAHOE PUBLIC UTILITY DISTRICT INDIAN CREEK RESERVOIR DATA SUMMARY 2016 Lake Depth Temp Alk MBAS COD BOD CL- TDS S.S. Turb EC Ca Na Mg SAR Level %Ice Date Site Ft C pH mg/I mg/I mq/I mg/I mg/I mg/I mgll NTU uS/cm mg/I mg/I mg/I ft. Cover Algae Weeds 02/10/16 ICR-01 0.5 3.8 7.90 50.3 1.77 78 1.37 2.80 104 0 No yes 02/10/16 ICR-01 18.0 3.7 7.82 49.9 1.75 78 1.69 2.80 104 02/10/16 ICR-01 36.0 3.8 7.66 50.1 - 1.74 76 1.64 2.80 104 02/10/16 ICR-03 0.5 4.8 7.94 49.9 1.74 76 1.84 3.00 104 02/10/16 ICR-03 21.0 3.9 7.93 50.3 1.72 79 1.71 2.90 104 02/10/16 ICR-05 0.5 4.6 7.96 50.7 1.75 77 1.89 3.10 103 03/16/16 ICR-01 0.5 7.9 6.81 2.14 2.50 101 0 Yes No 03/16/16 ICR-01 21.0 7.8 6.66 2.15 2.30 101 03/16/16 ICR-01 42.0 7.8 6.56 2.07 2.40 102 03/16/16 ICR-03 0.5 8.0 6.98 2.03 2.20 101 03/16/16 ICR-03 24.0 7.9 6.44 2.03 2.40 101 03/16/16 ICR-05 0.5 7.9 7.06 2.02 2.20 101 04/12/16 ICR-01 0.5 12.4 7.83 2.25 1.80 99 0 Yes No 04/12/16 ICR-01 18.0 10.9 7.95 2.22 1.90 98 04/12/16 ICR-01 36.0 8.7 7.67 2.24 2.40 103 04/12/16 ICR-03 0.5 12.0 8.00 2.19 1.80 99 04/12/16 ICR-03 21.0 10.6 7.92 2.16 1.90 98 04/12/16 ICR-05 0.5 11.7 7.90 2.16 1.80 99 05/10/16 ICR-01 0.5 14.3 8.63 45.4 1.54 66 0.54 1.40 94 0 Yes Yes 05/10/16 ICR-01 18.0 12.7 8.41 45.0 1.54 68 0.65 1.30 94 05/10/16 ICR-01 36.0 12.3 8.43 45.0 1.54 76 0.82 1.50 94 05/10/16 ICR-03 0.5 14.6 8.95 44.8 1.55 70 0.91 1.30 95 05/10/16 ICR-03 21.0 12.8 8.96 44.6 1.50 67 0.56 1.30 93 05/10/16 ICR-05 0.5 14.4 8.96 44.9 1.55 59 0.50 1.30 94 06/22/16 ICR-01 0.5 18.4 7.24 1.37 1.20 94 0 Yes No 06/22/16 ICR-01 14.0 18.3 7.76 1.36 1.10 94 06/22/16 ICR-01 38.8 16.2 7.20 1.36 1.30 94 06/22/16 ICR-03 0.5 18.0 8.16 1.36 0.82 94 06/22/16 ICR-03 26.0 16.3 7.71 1.36 0.97 94 06/22/16 ICR-05 0.5 17.9 7.98 1.36 1.10 94 07/14/16 ICR-01 0.5 20.3 8.87 1.37 1.60 98 0 Yes Yes 07/14/16 ICR-01 21.0 19.0 8.73 1.39 1.10 97 07/14/16 ICR-01 39.0 18.8 8.57 1.34 1.20 98 07/14/16 ICR-03 0.5 20.2 8.91 1.43 1.60 98 07/14/16 ICR-03 24.0 19.1 8.79 1.36 1.20 97 07/14/16 ICR-05 0.5 20.5 9.04 1.35 1.80 97 08/03/16 ICR-01 0.5 22.4 9.23 47.3 1.35 71 1.90 2.50 100 0 Yes Yes 08/03/16 ICR-01 21.0 19.2 8.39 46.6 1.31 66 0.44 0.71 98 08/03/16 ICR-01 39.0 18.5 7.61 50.0 1.34 75 1.68 1.80 106 08/03/16 ICR-03 0.5 22.3 9.22 47.2 1.38 67 2.36 4.00 99 08/03/16 ICR-03 24.0 18.9 8.07 47.8 1.32 68 0.38 1.00 100 08/03/16 ICR-05 0.5 21.9 9.24 47.2 1.33 67 1.10 1.90 99 09/15/16 ICR-01 1.1 16.5 9.50 1.33 2.20 101 0 Yes Yes 09/15/16 ICR-01 17.7 16.3 9.42 1.33 2.10 101 09/15/16 ICR-01 36.1 16.0 9.33 1.31 3.80 100 09/15/16 ICR-03 1.1 16.7 9.41 1.33 3.20 101 09/15/16 ICR-03 21.2 16.2 9.40 1.33 3.80 101 09/15/16 ICR-05 1.0 16.5 9.44 1.34 2.60 101 10/26/16 ICR-01 0.5 0 11/03/16 ICR-01 0.5 8.6 8.71 49.0 1.64 76 8.10 8.60 102 0 Yes Yes 11/03/16 ICR-01 18.0 8.4 8.65 49.4 1.65 81 6.38 4.70 102 11/03/16 ICR-01 36.0 8.3 8.57 48.8 1.63 78 4.48 3.30 102 11/03/16 ICR-03 0.5, 8.4 8.56 49.4 1.66 75 5.50 3.40 102 11/03/16 ICR-03 21.0 8.4 8.61 49.0 1.66 78 4.46 2.80 102 11/03/16 ICR-05 0.5 8.3 8.22 49.3 1.66 77 4.60 3.40 102 12/28/16 MR-01 80 Maximum 42.0 22.4 9.50 50.7 0.0 0.00 2.25 81 8.10 8.60 106 0.00 0.00 0.00 0.00 0.00 80 Minimum 0.5 3.7 6.44 44.6 0.0 0.00 1.31 59 0.38 0.71 93 0.00 0.00 0.00 0.00 0.00 0 Average 13.2 13.2 8.26 48.0 1.62 73 2.31 2.26 99 7 #Samples 55 54 54 24 0 0 54 24 24 54 54 0 0 0 0 0 11 56 56 SOUTH TAHOE PUBLIC UTILITY DISTRICT INDIAN CREEK RESERVOIR DATA SUMMARY 2016 Coliforms Fecal Air Depth Total Fecal/E.cot Strep Temp SO4 Boron Fe Mn Date Site Ft MPN MPN MPN C mq/L mq/L ug/L ug/L Comments 02/10/16 ICR-01 0.5 35 < 1 13.4 3.26 02/10/16 ICR-01 18.0 3.26 02/10/16 ICR-01 36.0 3.42 02/10/16 ICR-03 0.5 33 < 1 3.41 02/10/16 ICR-03 21.0 - 3.24 02/10/16 ICR-05 0.5 19 < 1 3.31 03/16/16 ICR-01 0.5 12 < 1 7.8 3.29 03/16/16 ICR-01 21.0 3.03 03/16/16 ICR-01 42.0 3.28 03/16/16 ICR-03 0.5 15 < 1 3.39 03/16/16 ICR-03 24.0 3.24 03/16/16 ICR-05 0.5 16 1 3.19 04/12/16 ICR-01 0.5 37 < 1 14.2 3.60 04/12/16 ICR-01 18.0 3.44 04/12/16 ICR-01 36.0 3.55 04/12/16 ICR-03 0.5 23 < 1 3.27 - _ 04/12/16 ICR-03 21.0 3.60 04/12/16 ICR-05 0.5 25 < 1 2.94 05/10/16 ICR-01 0.5 63 1 14.5 3.43 05/10/16 ICR-01 18.0 3.17 05/10/16 ICR-01 36.0 2.92 05/10/16 ICR-03 0.5 96 < 1 2.84 05/10/16 ICR-03 21.0 2.96 05/10/16 ICR-05 0.5 23 < 1 3.16 06/22/16 ICR-01 0.5 435 < 1 24.5 2.45 06/22/16 ICR-01 14.0 2.56 06/22/16 ICR-01 38.8 2.52 06/22/16 ICR-03 0.5 214 < 1 2.68 06/22/16 ICR-03 26.0 2.51 06/22/16 ICR-05 0.5 345 1 3.66 07/14/16 ICR-01 0.5 43 < 1 26.1 1.90 07/14/16 ICR-01 21.0 3.37 07/14/16 ICR-01 39.0 3.80 07/14/16 ICR-03 0.5 28 < 1 3.83 07/14/16 ICR-03 24.0 4.37 07/14/16 ICR-05 0.5 99 1 3.92 08/03/16 ICR-01 0.5 > 2419 < 1 22.4 3.10 08/03/16 ICR-01 21.0 3.24 08/03/16 ICR-01 39.0 - 2.97 08/03/16 ICR-03 0.5 > 2419 < 1 3.17 08/03/16 ICR-03 24.0 3.65 08/03/16 ICR-05 0.5 > 2419 < 1 3.90 09/15/16 ICR-01 1.1 86 < 1 18.6 5.73 09/15/16 ICR-01 17.7 1.89 09/15/16 ICR-01 36.1 1.76 09/15/16 ICR-03 1.1 72' < 1 1.86 _ 09/15/16 ICR-03 21.2 1.84 09/15/16 ICR-05 1.0 140 1 1.80 10/26/16 ICR-01 0.5 Too windy to sample 11/03/16 ICR-01 0.5 32 2 7.1 2.70 11/03/16 ICR-01 18.0 2.50 11/03/16 ICR-01 36.0 2.63 11/03/16 ICR-03 0.5 23 1 2.70 11/03/16 ICR-03 21.0 2.60 11/03/16 ICR-05 0.5 43 5 2.60 12/28/16 ICR-01 Frozen Maximum 42.0 > 2419 5 0 26.1 5.73 Minimum 0.5 < 12 < 1 0 7.1 1.76 Average 13.2 341 1 16.5 3.08 #Samples 55 27 27 0 9 54 0 0 0 SOUTH TAHOE PUBLIC UTILITY DISTRICT INDIAN CREEK RESERVOIR DATA SUMMARY From: 1980 To: 2016 Secchi NH3+ Total P D.O. D.O. Chlorophyll Depth NH4 NH3-N Org-N TKN NO3-N NO2-N Total N PO4-P Year mg/I mg/I %SAT mg/m3 ft. mg/L mg/I mg/I mg/I mg/I mg/I mg/L mg/I 80 0.305 8.75 88.8 1.227 0.080 1.351 2.578 3.465 0.201 6.244 0.212 81 0.267 10.26 122.8 0.404 0.148 1.335 1.692 7.454 0.315 9.405 0.176 82 0.531 9.77 113.5 0.925 0.105 1.521 2.417 4.329 0.190 6.916 0.421 83 0.575 10.22 116.6 0.474 0.139 1.223 1.697 3.419 0.125 5.241 0.472 . 84 0.459 10.35 115.8 0.476 0.120 1.350 1.799 3.356 0.154 5.309 0.339 85 0.219 9.93 112.6 0.629 0.142 1.585 2.212 2.722 0.118 5.052 0.092 86 0.164 9.54 111.0 1.277 0.273 1.577 2.854 3.080 0.147 6.082 0.059 87 0.145 9.00 101.7 2.927 0.331 1.755 4.683 3.590 0.174 8.447 0.058 88 0.095 9.13 105.3 4.661 0.097 2.194 6.855 6.406 0.161 13.421 0.023 89 0.075 9.26 107.5 2.970 0.160 1.053 4.023 4.892 0.108 9.023 0.020 90 0.154 9.02 104.9 0.140 0.052 1.178 1.318 0.705 0.028 2.051 0.078 91 0.299 8.91 102.9 0.206 0.074 1.889 2.095 0.289 0.015 2.374 0.143 92 0.318 8.90 105.4 0.082 0.040 2.828 2.910 0.038 0.011 2.959 0.136 93 0.778 8.72 102.6 0.171 0.029 8.453 8.624 0.150 0.013 8.054 0.115 94 0.179 8.15 91.0 0.138 0.038 1.573 1.711 0.039 0.014 1.764 0.080 95 0.344 8.57 102.1 0.203 0.050 5.542 5.744 0.068 0.012 5.823 0.061 96 0.600 9.00 106.3 0.100 0.030 6.110 6.220 0.040 0.010 6.260 0.020 97 0.062 9.05 102.4 0.185 0.015 0.883 1.068 0.083 0.029 1.181 0.018 98 0.049 8.61 102.1 0.088 0.013 0.655 0.743 0.089 0.010 0.840 0.011 99 0.076 8.50' 94.8 3.98 0.072 0.010 0.913 0.985 0.023 < 0.010 1.018 0.012 00 0.078 6.70 71.8 24.0 2.67 0.154 0.011 0.927 1.080 0.070 < 0.010 1.161 0.013 01 0.053 6.12 72.6 11.4 5.62 0.054 0.011 0.860 0.913 0.010 < 0.010 0.933 0.015 02 0.048 6.76 74.2 13.3 7.47 0.078 0.016 0.825 0.903 0.038 < 0.010 0.951 0.015 03 0.044 7.87 86.6 14.2 8.21 0.119 0.024 0.759 0.881 0.033 < 0.010 0.922 0.013 04 0.042 6.43 74.5 15.6 10.25 0.105 0.013 0.845 0.941 0.030 < 0.010 0.982 0.015 05 0.043 7.25 80.4 9.7 6.50 0.094 0.011 0.870 0.964 0.043 < 0.010 0.988 0.013 06 0.069 6.54 69.4 13.9 5.15 0.160 < 0.010 0.621 0.781 0.045 < 0.010 0.836 0.015 07 0.057 6.66 76.1 • 14.8 4.72 0.106 0.013 0.899 1.005 0.031 < 0.010 1.047 0.013 08 0.071 6.66 80.2 21.0 3.77 0.076 0.011 1.149 1.225 0.048 < 0.010 1.282 0.018 09 0.067 8.28 98.9 16.2 4.48 0.046 0.013 1.249 1.295 0.021 < 0.010 1.326 0.013 10 0.042 7.80 91.8 11.1 7.69 0.029 0.011 0.801 0.829 0.019 < 0.010 0.858 0.011 11 0.041 6.97 80.6 9.2 8.19 0.055 0.010 0.512 0.568 0.013 < 0.010 0.591 0.012 12 0.037 7.87 90.5 4.8 10.95 0.086 0.015 0.667 0.754 0.034 < 0.010 0.798 0.012 13 0.035 8.45 98.4 7.4 10.64 0.049 0.020 0.727 0.776 0.027 < 0.011 0.797 0.012 14 0.037 9.07 91.2 9.9 7.25 0.041 0.021 0.751 0.782 0.012 < 0.010 0.786 0.012 15 0.045 9.74 93.8 19.9 7.85 0.031 0.022 0.992 1.023 0.013 < 0.010 1.028 0.010 16 0.034 9.37 88.1 10.3 9.87 0.039 0.020 0.660 0.691 0.027 < 0.010 0.714 0.011 Maximum 0.778 10.35 122.8 24.0 10.95 4.661 0.331 8.453 8.624 7.454 0.315 13.421 0.472 Minimum 0.034 6.12 69.4 4.8 2.67 0.029 < 0.010 0.512 0.568 0.010 < 0.010 0.591 0.010 Average 0.177 8.44 95.4 13.3 6.96 0.505 0.059 1.597 2.098 1.209 0.055 3.337 0.075 #Years 37 37 37 17 18 37 37 37 37 37 37 37 37 Note:Chromogenic Substrate test for Total Coliform and E.coli begun in November 2014 SOUTH TAHOE PUBLIC UTILITY DISTRICT INDIAN CREEK RESERVOIR DATA SUMMARY From: 1980 To: 2016 Lake . Temp Alk MBAS COD BOD Cf TDS S.S. Turb EC Ca Na Mg SAR Level %Ice Algae Weeds Year C pH mg/I mg/I mg/I mq/I mg/I mq/I mg/I NTU uS/cm mq/I mg/I mg/I ft. Cover 80 12.9 8.47 75 0.05 24.8 2.80 132.2 459 8.16 2.20 605 64.53 72.33 2.37 2.38 49.81 4 81 14.4 9.3 78 0.04 24.1 2.23 103.1 457 5.74 2.22 653 72.00 48.50 1.94 1.53 49.20 0 82 12.6 8.74 91 0.04 25.7 2.73 82.4 363 8.84 3.74 579 59.34 42.95 2.46 1.47 52.36 7 83 12.3 9.15 101 0.03 22.8 2.28 81.2 344 4.69 3.56 553 55.39 43.94 2.57 1.56 51.86 1 84 12.4 9.12 115 0.03 24.1 3.03 92.2 381 8.35 3.67 627 61.83 61.36 2.52 2.07 51.42 2 85 13.5 9.04 75 0.05 31.1 4.63 107 405 15.64 6.62 682 43.43 83.58 2.73 3.44 49.38 8 86 14.2 8.88 55 0.05 28.9 3.71 72.9 315 19.44 10.73 517 23.43 73.96 2.75 3.83 48.87 0 87 12.9 8.4 74 0.03 28.8 4.69 114 450 14.34 4.44 766 29.75 110.92 3.14 5.21 46.10 8 88 13.6 7.74 60 0.03 14.7 5.12 138 509 19.00 3.01 891 24.50 134.17 3.26 6.74 45.99 4 89 12.9 8.84 47 0.02 21.8 2.05 113 457 7.10 3.68 786 24.26 111.58 2.88 5.69 41.43 13 90 13.8 9.55 67 0.02 27.8 2.42 82.5 426 8.33 4.38 687 35.08 92.33 3.03 4.02 27.00 14 91 13.1 9.23 69 0.02 42.2 8.27 27.6 205 20.36 17.38 297 22.45 32.00 2.61 1.68 17 92 13.8 9.55 74 0.03 46.3 3.50 18.6 166 13.75 5.48 257 21.58 24.50 2.43 1.34 15 93 13.1 8.73 55 0.03 129.3 21.00 5.93 109 81.91 24.43 135 12.98 9.69 2.17 0.66 13 94 11.4 9.42 67 0.02 38.7 5.12 8.10 130 7.16 5.35 168 18.29 13.07 2.46 0.76 15 95 13.2 8.66 54 0.02 31.4 6.59 3.86 98 28.68 8.02 124 12.83 8.28 2.27 0.55 44.48 8 96 13.3 9.12 47 0.02 99.4 17.48 1.70 70 71.90 19.45 108 11.29 6.46 2.23 0.46 50.05 0 97 12.5 8.77 40 0.02 19.1 2.97 1.47 64 12.86 6.08 91 9.70 5.51 1.91 0.42 47.44 2 98 12.3 8.32 43 0.02 16.1 2.43 1.50 66 8.47 4.34 99 9.97 5.88 1.77 0.45 45.65 11 99 13.1 8.17 43 0.02 20.3 2.83 1.33 82 14.63 11.13 97 10.29 5.92 1.97 0.44 45.50 00 10.3 8.24 48 19.3 2.09 1.32 96 11.58 15.15 105 10.70 5.92 1.96 0.44 01 13.2 8.25 50 24.2 1.68 1.41 79 9.16 12.47 109 02 11.0 8.46 48 21 1.50 1.42 77 4.19 5.79 105 03 10.0 8.29 48 19.7 1.74 1.82 71 3.06 4.33 106 04 14.0 8.45 48 17.9 1.78 2.05 68 4.50 3.81 104 10.10 7.46 1.91 0.56 05 11.5 8.15 48 18.2 1.73 1.89 72 3.71 3.78 102 0 06 10.0 7.65 42 24.3 1.80 1.38 72 5.64 9.35 91 2 07 12.6 8.41 51 29.2 2.97 1.66 85 6.00 8.34 113 11.03 6.89 2.20 0.50 9 08 13.4 8.53 54 26.4 2.09 103 6.48 17.21 118 2 09 13.9 8.85 52 32.5 2.09 89 6.65 10.38 119 0 10 13.4 8.38 48 26.9 1.83 75 4.59 5.97 105 0 11 13.7 7.60 40 21.2 1.02 70 3.19 2.95 81 0 12 13.2 8.37 49 0.92 73 1.92 2.47 96 0 13 12.8 8.43 50 1.12 71 2.22 1.73 99 12 14 12.2 8.61 49 1.17 66 3.35 2.81 102 0 15 14.3 9.13 52 1.35 75 3.04 3.73 111 9 16 13.2 . 8.26 48 1.62 73 2.31 2.26 99 7 Maximum 14.4 9.55 115 0.05 129.3 21.00 137.9 509 81.91 24.43 891 72.00 134.17 3.26 6.74 52.36 17 Minimum 10.0 7.60 40 0.02 14.7 1.50 0.9 64 1.92 1.73 81 9.70 5.51 1.77 0.42 27.00 0 Average 12.8 8.63 58 0.03 31.2 4.33 32.8 186 12.46 7.09 283 28.47 43.79 2.41 2.01 46.66 6 #Years 37 37 37 20 32 28 37 37 37 37 37 23 23 23 23 16 31 0 0 Note:Chro SOUTH TAHOE PUBLIC UTILITY DISTRICT INDIAN CREEK RESERVOIR DATA SUMMARY From 1980 To: 2016 Coliforms Fecal Air Total Fecal/E.coli Strep Temp SO4 Boron Fe Mn Year MPN MPN MPN C mg/L mg/L ug/L ug/L Comments 80 12.4 81 18.1 82 15.4 83 97 10 40 14.5 84 238 4 186 16.0 85 231 4 203 17.1 86 173 5 419 18.7 87 72 6 38 17.2 88 330 5 166 17.2 89 219 6 208 15.7 90 166 5 64 18.0 . 91 77 2 28 17.8 34.33 0.13 92 265 4 91 17.2 18.08 0.11 93 519 7 259 14.9 8.32 • 0.06 94 477 13 54 11.5 7.48 0.06 95 584 4 26 12.4 5.39 0.03 96 186 2 189 16.7 2.59 0.04 97 75 7 119 15.1 3.43 0.02 • 98 154 3 149 8.2 2.75 0.02 99 50 6 30 15.5 4.74 0.02 00 7 < 2 3 19.2 5.50 0.03 1,180 46 01 200 < 2 2 16.5 4.75 0.02 547 67 02 29 < 3 27 24.3 4.90 0.02 318 31 03 9 < 4 3 13.6 3.21 0.02 218 82 04 7 2 4 18.0 2.54 0.03 222 28 05 16 2 24 16.2 1.99 0.02 307 36 06 49 3 5 13.9 1.58 0.02 773 82 07 6 2 2 20.1 3.42 0.02 614 35 08 15 2 3 17.5 4.68 0.02 1,237 50 09 230 2 2 14.8 4.66 0.02 794 24 10 403 4 2 13.6 3.72 0.01 264 21 11 376 5 5 13.1 1.30 0.01 387 32 12 24 2 , 3 16.2 1.21 0.01 169 22 13 32 2 7 15.4 1.83 178 20 14 146 4 2 15.2 2.50 15 354 3 17.8 2.70 16 341 1 16.5 3.08 Maximum 584 13 419 24.3 34.33 0.13 1,237 82 Minimum 6 1 2 8.2 1.21 0.01 169 20 Average 181 4 74 16.0 5.41 0.03 515 41 #Years 34 34 32 37 26 22 14 14 Note:Chro INDIAN CREEK RESEREVOIR Total Phosphorus Chlorophyll a 0.20 50 0.15 40 M 30 - J p) 0.10 E °) E 20 7ippli,111111 0.05 10 0.00 0 97 98 99 OD 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 00 01 02 03 04 05, 06 07 08 09 10 11 12 13 14 15 16 —A—Serles1 —A—Chlorophyll a Linear(Chlorophyll a) Secchi Depth • NO3-N&NH3-N 0 - 10 - 5 4L-----LN 9 10 8 15 6 : IA 20 -) = E rn 5 - ° 25 E 4 )i 30 3 35 2 - 40 1 45 0 99 OD 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 80 81 82 8384 85 8687 88 89 90 91 92 93 94 9596 97 98 99 00 01 02 03 04 0506 07 08 09 10 11 12 13 14 15 16 --A—Secchl Depth Linear(Secchi Depth) —r—NO3-N +NH3-N INDIAN CREEK RESEREVOIR Chlorides Total Dissolved Solids 150 _ 700 140 650 130 _ 600 120 _ 550 110 500 = 100 450 90 \b. 400 $� _ 3504 11 60 _ E 300 50 250 40 200 30 150 1111110660*. 20 100 : 10 _ 50 0 80 81 82 83 84 85 86 87 8138990 91 92 93 94 95 96 97 989900 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 0 80 81 82 83 84 8586 87 8889 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 0607 08 09 10 11 12 13 14 15 16 —A—Chlorides Linear(Chlorides) —L—TDS Linear(TDS) pH 12 11 10 9 8 7 6 5 4 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 t pH INDIAN CREEK RESERVOIR . PROFILE MONITOR 02/10/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DD/YY HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 2/10/2016 11:24:54 0.5 3.8 7.90 104.3 11.36 86.3 7.5 2/10/2016 11:28:20 3.0 3.8 7.92 104.2 11.46 87.0 2/10/2016 11:29:00 6.0 3.7 7.91 104.2 11.47 86.9 2/10/2016 11:30:09 9.0 3.6 7.90 104.3 11.44 86.5 2/10/2016 11:30:53 12.0 3.7 7.88 104.2 11.41 86.3 2/10/2016 11:32:09 15.0 3.7 7.85 104.3 11.41 86.3 2/10/2016 11:32:48 18.0 3.7 7.82 104.2 11.38 86.1 2/10/2016 11:33:46 21.0 3.7 7.79 104.3 11.34 85.9 2/10/2016 11:34:41 24.0 3.7 7.77 104.3 11.33 85.8 2/10/2016 11:35:39 27.0 3.7 7.73 104.2 11.31 85.7 2/10/2016 11:36:37 30.0 3.8 7.70 104.2 11.29 85.6 2/10/2016 11:37:31 33.0 3.8 7.68 104.3 11.28 85.5 2/10/2016 11:38:28 36.0 3.8 7.66 104.2 11.26 85.4 2/10/2016 11:39:25 39.0 3.9 7.62 104.3 11.04 83.9 2/10/2016 11:40:12 40.6 3.9 7.54 104.4 10.50 79.8 ICR-03 2/10/2016 11:02:05 0.5 4.8 7.94 103.6 11.62 90.5 6.81 2/10/2016 11:03:42 3.0 4.4 7.98 104.0 11.68 90.1 2/10/2016 11:05:04 6.0 4.1 7.99 103.9 11.68 89.5 2/10/2016 11:05:30 9.0 4.1 7.98 103.8 11.68 89.4 2/10/2016 11:06:28 12.0 3.9 7.97 104.1 11.55 87.8 2/10/2016 11:07:14 15.1 3.9 7.95 104.0 11.52 87.6 2/10/2016 11:08:13 18.0 3.9 7.94 104.0 11.49 87.3 2/10/2016 11:09:32 21.0 3.9 7.93 103.9 11.45 87.1 2/10/2016 11:11:13 24.0 3.9 7.90 104.1 9.74 74.2 2/10/2016 11:12:39 24.9 4.0 7.82 104.1 5.25 40.0 ICR-05 2/10/2016 10:40:34 0.5 4.6 7.96 103.1 11.68 90.7 6.90 2/10/2016 10:41:04 0.9 4.6 7.96 103.2 11.72 90.8 2/10/2016 10:42:01 1.2 4.6 7.97 103.1 11.73 ., 90.9 2/10/2016 10:42:58 2.0 4.6 7.97 103.2 11.73 90.8 2/10/2016 10:43:55 3.0 4.5 7.97 103.2 11.73 90.7 2/10/2016 10:44:40 4.0 4.5 7.96 103.1 11.73 90.6 2/10/2016 10:45:18 5.1 4.4 7.95 103.1 11.74 90.6 2/10/2016 10:45:59 6.0 4.4 7.94 103.1 11.74 90.6 2/10/2016 10:46:42 7.0 4.4 7.93 103.1 11.74 90.5 2/10/2016 10:47:20 8.2 4.4 7.89 103.1 11.74 90.5 2/10/2016 10:47:57 9.0 4.4 7.88 103.1 11.73 90.4 2/10/2016 10:48:42 10.0 4.4 7.87 103.1 11.73 90.4 2/10/2016 10:49:34 11.0 4.4 7.87 103.1 11.73 90.4 2/10/2016 10:50:18 12.1 4.4 7.81 103.1 11.61 89.4 2/10/2016 10:51:08 13.0 4.4 7.73 104.2 9.61 74.1 02/10/2016 ICR-1 ICR-1 Temperature Dissolved Oxygen 0 0 _ l• 5 = 5 10 10 15 - 15 = 20 = c 20 i. m 25 - a 25 0 30 _ 0 30 35 35 - .1 40 = 40 45 = 45 50 1 I I { I { I i I I I I I III i i I 1 I 1 1 - -_ 0 5 10 15 20 25 50 ' 1 ' I ' I . I . I I ' I ' I I ' I ' I . - 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C mg/L D.O. ICR-3 ICR-3 Temperature Dissolved Oxygen 0 : 1 5 _ 0 __ 5 1 10 _ 101 • . 15 •_ a t 15 a - O 20 _ 0 20• _ 25 - ' 25 30 30 _ 35 1 1 1 1 1 1 1 1 1 I 1 I I 1 I 1 1 I I 1 1 1 - 35 ` 1 1 ' 1 1 1 I 1 1 ' 0 • 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L 02/10/2016 ICR-5 ICR-5 . Temperature Dissolved Oxygen 0 0 5 5 a 10 a 10 • - a 15 15 20 20 ' I ' I ' f ' 1 ' 1 ' 1 ' 1 ' 1 ' 1 ' 1 ' 1 ' 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L INDIAN CREEK RESERVOIR PROFILE MONITOR 03/16/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DD/YY HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 3/16/2016 10:29:42 3.0 7.9 6.81 101.0 11.80 96.8 11.30 3/16/2016 10:30:24 6.0 7.9 6.74 101.0 11.80 96.6 3/16/2016 10:31:05 9.0 7.8 6.72 101.0 11.78 96.4 3/16/2016 10:31:30 12.1 7.8 6.70 101.0 11.76 96.1 3/16/2016 10:31:50 15.1 7.8 6.68 101.0 11.74 95.9 3/16/2016 10:32:16 18.0 7.8 6.66 101.0 11.72 95.7 3/16/2016 10:32:45 21.0 7.8 6.66 101.0 11.70 95.6 3/16/2016 10:33:29 24.0 7.8 6.66 101.0 11.68 95.4 3/16/2016 10:34:01 27.0 7.8 6.65 101.0 11.67 95.3 3/16/2016 10:34:50 30.0 7.8 6.65 101.0 11.66 95.2 3/16/2016 10:35:30 32.8 7.8 6.64 100.9 11.64 95.1 3/16/2016 10:36:09 36.0 7.8 6.63 100.9 11.62 94.9 3/16/2016 10:36:39 39.0 7.8 6.59 100.9 11.59 94.5 j 3/16/2016 10:37:07 42.0 7.8 6.56 101.8 7.54 61.4 ICR-03 3/16/2016 11:11:42 2.8 8.0 6.98 101.0 11.86 97.7 9.70 3/16/2016 11:12:09 6.0 8.0 6.85 101.0 11.84 97.2 3/16/2016 11:12:50 9.0 8.0 6.74 101.0 11.80 96.6 3/16/2016 11:13:28 12.0 8.0 6.68 101.0 11.74 95.9 3/16/2016 11:14:25 15.0 7.9 6.63 101.0 11.71 95.6 3/16/2016 11:15:03 18.1 7.9 6.63 101.0 11.70 95.5 3/16/2016 11:15:48 20.9 7.9 6.58 101.0 11.67 95.2 ,i 3/16/2016 11:16:32 24.1 7.9 6.44 101.0 11.56 93.9 ICR-05 3/16/2016 11:29:04 2.8 7.9 7.06 101.0 11.76 97.1 9.65 3/16/2016 11:29:39 6.0 7.9 6.85 101.0 11.74 96.3 3/16/2016 11:30:21 1.0 8.0 7.06 101.0 11.75 97.0 3/16/2016 11:30:52 1.6 8.0 7.03 101.0 11.76 97.0 3/16/2016 11:31:20 2.6 8.0 7.01 101.0 11.75 96.9 3/16/2016 11:31:53 3.7 8.0 6.98 101.1 11.75 96.8 3/16/2016 11:32:54 4.9 8.0 6.93 101.0 11.74 96.6 3/16/2016 11:33:38 5.9 7.9 6.84 101.0 11.72 96.2 3/16/2016 11:34:15 6.7 7.9 6.79 101.0 11.71 96.0 3/16/2016 11:35:06 7.9 7.9 6.60 101.1 11.67 95.2 3/16/2016 11:35:40 8.6 7.9 6.59 101.0 11.65 95.0 3/16/2016 11:36:09 9.6 7.9 6.58 101.1 11.64 94.9 3/16/2016 11:36:41 10.7 7.9 6.56 101.1 11.63 94.8 3/16/2016 11:37:12 11.6 7.9 6.56 101.1 11.63 94.7 3/16/2016 11:37:50 12.8 7.9 6.56 101.0 11.32 92.3 ICR-06 3/16/2016 10:56:32 38.8 7.6 6.52 100.9 10.82 88.1 10.70 ICR-07 3/16/2016 11:02:01 36.0 7.9 6.48 101.1 10.88 88.5 9.85 ICR-08 3/16/2016 11:07:12 21.2 8.0 6.62 101.0 11.59 94.6 10.55 03/16/2016 ICR-1ICR-1 Temperature Dissolved Oxygen 0 0 _ . 5 5 10 - I10 15 - 15 - = 20 - • 20 _ 25 * « 25 - O. • a - O 30 • o 30 - • 35 _ • 35 - 40 - • A__________] • 40 45 _ 45 • 50 i t i 1 I i I i I I 1 I 1 I 1 1 I i 1 I 1 i i I , _ 0 5 10 15 20 25 50 ' I ' I ' i . I ' i ' I ' I ' 1 ' i ' i • 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C mg/L D.O. ICR-3 • • ICR-3 Temperature Dissolved Oxygen • 0 - 0 • - 5 - • 5 - 10 _ • 10 = 15 - • = 1.615 - _ t - O. - C 20 _ • C 20 _ 25 •• 25 30 - 30 _ 35 1 i 1 1 1 i i i 1 1 1 1 1 1 1 1 i I 1 1 i 1 I I 35 , i , i , i , i i i , i , i , i , 1 , i , 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C 1 D.O,mg/L 03/16/201.6 ICR-5 ICR-5 Temperature Dissolved Oxygen 0 -- 0 • •• - - t 5 5 - — - -- A a 10 :F. 10 15 15 -- — 20 A- 1 + i I + i i--i i i i I I I + i I I +- 1 I- I 20 1 1 1 1 1 1 - 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L • INDIAN CREEK RESERVOIR PROFILE MONITOR 04/12/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DD/YY HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 4/12/2016 11:12:58 0.9 12.4 7.83 99.1 8.91 83.3 12.75 4/12/2016 11:13:47 2.7 11.9 7.92 99.1 8.91 82.4 4/12/2016 11:14:48 5.8 11.7 7.97 99.0 8.90 82.1 4/12/2016 11:15:37 8.9 11.7 7.99 98.9 8.92 82.2 4/12/2016 11:16:39 11.9 11.6 8.02 98.8 8.94 82.2 4/12/2016 11:17:30 14.9 11.5 8.01 98.9 8.79 80.6 4/12/2016 11:18:21 17.9 10.9 7.95 98.2 8.47 76.6 4/12/2016 11:19:50 20.9 10.6 7.89 98.8 8.19 73.5 4/12/2016 11:20:54 24.0 9.9 7.81 100.7 7.92 70.1 4/12/2016 11:21:31 26.3 9.4 7.77 102.1 7.84 68.5 4/12/2016 11:22:14 30.1 9.1 7.73 102.4 7.65 66.3 4/12/2016 11:22:52 33.0 8.9 7.70 102.7 7.35 63.4 4/12/2016 11:23:24 36.0 8.7 7.67 102.9 7.08 60.9 4/12/2016 11:24:11 39.0 8.6 7.55 107.6 3.04 26.1 4/12/2016 11:24:39 39.3 8.6 7.48 111.7 3.33 28.6 ICR-03 4/12/2016 10:22:19 1.3 12.0 8.00 99.0 8.97 83.2 10.54 4/12/2016 10:23:48 3.0 11.9 8.02 98.9 8.98 83.1 4/12/2016 10:24:34 6.0 11.6 8.03 98.9 8.96 82.5 4/12/2016 10:25:35 9.0 11.6 8.03 98.9 8.94 82.2 4/12/2016 10:26:20 12.0 11.4 8.02 98.0 8.94 81.8 4/12/2016 10:27:36 15.0 11.3 8.01 96.7 8.97 81.9 4/12/2016 10:28:57 18.1 11.1 7.98 97.1 8.83 80.2 4/12/2016 10:29:56 21.0 10.6 7.92 98.3 8.55 76.9 4/12/2016 10:31:43 22.9 10.3 7.62 99.7 5.81 51.9 ICR-05 4/12/2016 10:00:46 0.9 11.7 7.90 98.5 8.97 82.6 10.73 Can see bottom at 10.73 feet 4/12/2016 10:00:57 0.9 11.7 7.91 98.4 8.97 82.6 4/12/2016 10:05:42 1.0 11.6 7.99 98.5 8.99 82.8 4/12/2016 10:06:48 2.0 11.4 7.99 98.3 8.97 82.0 4/12/2 10:07:35 3.0 11.2 7.97 - 98.3 8.92 81.2 4/12/ 16 10:08:29 4.0 11.1 7.95 98.2 8.87 80.6 4/1 2016 10:09:22 5.0 11.0 7.93 98.1 8.84 80.3 4//2016 10:10:38 6.1 11.0 7.92 98.0 8.85 80.3 /12/2016 10:12:27 7.0 11.0 7.91 98.0 8.84 80.1 4/12/2016 10:13:02 8.1 10.8 7.91 98.1 8.89 80.2 4/12/2016 10:13:39 9.1 10.6 7.93 98.1 9.05 81.4 4/12/2016 10:14:25 10.1 10.6 7.95 98.2 9.09 81.8 ICR-06 4/12/2016 11:08:25 36.0 8.7 7.39 104.2 5.54 47.6 13.21 ICR-07 4/12/2016 10:58:06 33.3 8.7 7.58 104.2 5.91 50.7 15.48 ICR-08 4/12/2016 10:49:25 21.1 10.9 7.83 98.2 8.38 75.9 13.04 04/12/2016 ICR-1 ICR-1 Temperature Dissolved Oxygen 0 0 5 5 10 10 15 15 V 20 - 02 _ 25 « 25 0,G 35 30 O 30 35 40 _• 40 45 _ 45 50 - II i I 1 1 1 1 I 1 i 1 1 1 1 1 1 1 1 1 1 1 1 0 5 10 15 20 25 50 1 1 -1 1 1 1 + 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C m9 IL D.O. • ICR-3 ICR-3 Temperature Dissolved Oxygen 0 _ 0 5 _ 5 - 10 _ 10 15 15 c r =_ 20 - 0 20 - 25 1 25 30 30 35 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 35 I I I- 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L 04/12/2016 ICR-5 ICR-5 Temperature, Dissolved Oxygen 0 0 51 • 5 = ( 10 a 10 a a) - o - - 15 15 20 I I I I 1 1 1 1 1 1 I 1 11 1 1 1 1 I ; 1 1 1 20 II I I A 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L INDIAN CREEK RESERVOIR PROFILE MONITOR 05/10/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DD/YY HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 5/10/2016 10:05:32 0.9 14.3 8.63 94.4 10.74 104.9 14.05 5/10/2016 10:08:34 0.9 14.3 8.69 94.4 10.74 104.9 5/10/2016 10:09:26 1.0 14.3 8.70 94.4 10.75 105.0 5/10/2016 10:10:15 2.3 13.9 8.72 94.6 10.84 104.9 5/10/2016 10:10:47 6.0 13.3 8.72 94.3 11.18 106.9 5/10/2016 10:11:42 8.8 13.1 8.66 94.2 11.39 108.3 5/10/2016 10:12:41 12.0 13.0 8.52 94.1 11.42 108.3 5/10/2016 10:13:30 15.0 12.9 8.46 94.1 11.39 107.8 5/10/2016 10:14:19 18.1 12.7 8.43 94.0 11.41 107.6 5/10/2016 10:17:29 15.6 12.9 8.41 94.0 11.46 108.4 5/10/2016 10:18:01 18.2 12.7 8.41 94.0 11.40 107.5 5/10/2016 10:19:23 20.9 12.6 8.43 93.9 11.34 106.8 5/10/2016 10:20:24 24.0 12.6 8.43 93.9 11.35 106.7 5/10/2016 10:21:16 27.2 12.5 8.43 93.9 11.31 106.3 5/10/2016 10:29:20 30.7 12.4 8.45 93.9 11.07 103.8 5/10/2016 10:30:13 33.2 12.3 8.45 93.8 10.90 101.9 5/10/2016 10:31:02 37.0 12.3 8.43 93.8 10.78 100.7 5/10/2016 10:34:27 40.2 12.2 7.29 94.3 8.92 83.1 ICR-03 5/10/2016 11:24:00 0.9 14.6 8.95 94.5 10.69 105.1 12.40 5/10/2016 11:24:26 1.1 14.5 8.95 94.5 10.69 104.9 5/10/2016 11:25:16 2.8 14.2 8.97 94.5 10.81 105.3 5/10/2016 11:25:50 5.9 13.6 8.98 93.4 10.98 105.8 5/10/2016 11:26:54 9.1 13.5 9.03 92.9 11.22 107.6 5/10/2016 11:27:27 12.1 13.4 9.01 93.2 11.33 108.5 5/10/2016 11:28:11 14.4 13.1 9.01 92.0 11.53 109.7 5/10/2016 11:29:10 18.1 12.8 8.99 93.2 11.79 111.5 5/10/2016- 11:30:08 21.0 12.8 8.96 93.2 11.87 112.2 5/10/2016 11:30:51 24.1 12.7 8.86 93.2 11.71 110.3 ICR-05 5/10/2016 11:42:18 1.0 14.4 8.96 94.3 10.96 107.4 >13.2 Can see bottom 5/10/2016 11:43:08 2.0 14.4 8.97 94.3 10.96 107.2 5/10/2016 11:43:42 2.7 14.3 8.97 94.2 10.98 107.4 5/10/2016 11:44:29 4.0 14.3 8.98 94.3 10.99 107.3 5/10/2016 11:45:13 5.2 14.3 8.98 94.2 11.01 107.5 5/10/2016 11:45:33 5.4 14.3 8.98 94.2 11.01 107.4 5/10/2016 11:46:10 6.9 14.2 8.98 94.2 11.03 107.6 5/10/2016 11:46:36 7.7 14.2 8.99 94.2 11.04 107.7 5/10/2016 11:47:07 8.7 14.2 8.99 94.2 11.08 108.1 5/10/2016 11:47:52 10.2 14.0 9.07 94.5 11.57 112.4 5/10/2016 11:48:28 11.0 13.9 9.10 94.7 11.82 114.4 5/10/2016 11:49:06 12.0 13.8 9.19 94.6 12.66 122.4 5/10/2016 11:49:53 13.2 13.7 9.11 91.8 4.13 39.8 ICR-06 5/10/2016 10:57:27 37.9 12.2 7.76 97.0 0.58 5.4 13.10 ICR-07 5/10/2016 11:13:34 28.6 12.5 8.78 93.8 11.08 103.9 13.15 ICR-08 5/10/2016 11:20:26 15.5 12.9 9.02 94.1 10.71 101.5 13.10 05/10/2016 ICR-1 ICR-1 Temperature Dissolved Oxygen 0 0 5 5 10 10 15 _ 15 = 20 = r 20 1 = 25 - a • m _ - 25 0 30 _ •— 30 35 _ 35 • 40 - 40 - — -- - -- ' 45 _ 45 50 11 I I I i I I i I I i I i I i 1 ; i I I 1 I i - 0 5 10 15 20 25 50 . I . I . I . I . I . I . f . l . l , i . i , l . i . l . 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Temperature,C • mg/L D.O. ICR-3 ICR-3 • Temperature Dissolved Oxygen 5 - 5 10 _ 10 15 _ 15 - a = W 20 20 o _ _ 25 1 25 30 30 35 1 I I i I i i 1 i i i i I i -I -I -I -f--I i I I 1 I • 35 , I , ,. ; . ; . ; . ; . ; . ; . ; ' ; . 1 . 1 . 1 , 1 ., 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Temperature,C D.O,mg/L 05/10/2016 ICR-5 ICR-5 Temperature Dissolved Oxygen 0 0 • - • t 5 : 5 • e 10 - • 15 15 20 1 I 1 1 1 1 1 i 1 I 1 1 1 1 I 1 1 1 1 1 1 1 1 1 20• I I I 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 • Temperature,C D.O,mg/L INDIAN CREEK RESERVOIR PROFILE MONITOR 06/22/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DD/YY HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 6/22/2016 11:02:49 1.1 18.4 7.24 93.8 8.99 95.8 10.80 6/22/2016 11:03:38 2.7 18.4 7.43 93.8 9.00 95.9 6/22/2016 11:04:13 6.0 18.4 7.52 93.8 9.02 96.1 6/22/2016 11:05:01 9.0 18.4 7.62 93.8 9.01 96.0 6/22/2016 11:05:55 11.8 18.4 7.70 93.8 9.00 95.8 6/22/2016 11:06:40 14.0 18.3 7.76 93.8 8.99 95.5 6/22/2016 11:07:49 17.7 17.1 7.71 93.4 8.80 91.2 6/22/2016 11:08:36 21.0 16.6 7.62 93.5 8.40 86.2 6/22/2016 11:09:26 23.7 16.5 7.52 93.5 8.27 84.6 6/22/2016 11:10:38 26.9 16.4 7.39 93.6 8.17 83.5 6/22/2016 11:11:24 29.3 16.4 7.32 93.6 8.12 82.9 6/22/2016 11:12:06 32.4 16.4 7.27 93.6 8.09 82.7 6/22/2016 11:12:40 34.7 16.4 7.24 93.7 8.03 82.0 6/22/2016 11:13:09 38.8 16.2 7.20 94.3 7.71 78.5 6/22/2016 11:13:40 41.8 16.1 7.14 96.3 6.39 64.9 6/22/2016 11:14:12 42.6 16.0 7.06 97.4 3.96 40.2 ICR-03 6/22/2016 11:45:53 1.2 18.0 8.16 93.5 9.04 95.5 Secchi tape broken 6/22/2016 11:46:42 2.9 18.0 8.18 93.5 9.02 95.4 6/22/2016 11:47:36 5.8 18.0 8.17 93.5 9.02 95.3 6/22/2016 11:48:42 8.4 18.0 8.16 93.5 9.01 95.2 6/22/2016 11:49:44 11.9 17.8 8.13 93.5 8.98 94.5 6/22/2016 11:50:16 13.5 17.3 8.09 93.6 8.83 92.0 6/22/2016 11:51:13 17.7 16.5 7.93 93.5 8.29 84.9 6/22/2016 11:52:05 20.8 16.4 7.82 93.6 8.11 82.9 6/22/2016 11:52:55 23.8 16.4 7.76 93.6 8.02 82.0 6/22/2016 11:53:35 26.0 16.3 7.71 94.3 7.68 78.4 6/22/2016 11:54:06 28.1 16.2 7.63 96.7 4.50 45.8 ICR-05 6/22/2016 12:05:00 1.0 17.9 7.98 93.6 9.19 97.0 Secchi tape broken 6/22/2016 12:05:20 1.0 17.9 8.02 93.6 9.05 95.5 6/22/2016 12:05:57 1.6 17.9 8.06 93.6 8.96 94.5 6/22/2016 12:06:06 1.9 17.9 8.06 93.6 8.92 94.2 6/22/2016 12:06:32 4.2 17.8 8.08 93.6 8.91 93.9 6/22/2016 12:07:02 4.6 17.8 8.09 93.6 8.86 93.2 6/22/2016 12:07:18 5.3 17.6 8.08 93.7 8.81 92.4 6/22/2016 12:07:42 7.2 16.9 8.05 93.5 8.60 88.8 6/22/2016 12:08:03 7.5 16.8 8.00 93.5 8.54 88.0 6/22/2016 12:08:18 8.0 16.8 7.97 93.5 8.50 87.6 6/22/2016 12:08:46 9.5 16.7 7.94 93.5 8.43 86.6 6/22/2016 12:09:21 10.7 16.6 7.91 93.5 8.45 86.8 6/22/2016 12:09:48 11.5 16.6 7.89 93.5 8.46 86.9 6/22/2016 12:10:09 12.4 16.7 7.87 93.5 8.46 86.9 6/22/2016 12:10:36 13.5 16.7 7.86 94.7 8.53 87.7 6/22/2016 12:10:51 14.1 16.7 7.82 94.7 3.59 36.9 • ICR-06 6/22/2016 10:58:23 0.0 12.03 16.04 16.0 10.80 Chemical data not used. ICR-07 6/22/2016 11:31:11 38.5 16.3 7.76 94.0 7.85 80.0 Secchi tape broken ICR-08 6/22/2016 11:39:03 32.5 16.4 7.73 93.6 8.07 82.4 Secchi tape broken 06/22/2016 ICR-1 • ICR-1 Temperature Dissolved Oxygen o _ t 0 _ i 5 - 5 • 10 - • 10 15 - 15 $ 20 _ g 20 11 25 _ D4.. 25 30 - 0 30 35 35 : J ( _ 40 - 40 45 • - 45 50 i I I i I i I I I I i i i 1 I i i I i I i I I i _ 0 5 10 15 20 25 50 ' I ' I I----I ' I . I ' I ' - I ' I ' I . I ' 0 1 2 3 4 5 6 7 8 9 10 11 12 • Temperature,C m9/L D.O. ICR-3 ICR-3 Temperature ,Dissolved Oxygen 0 - 0 5 - 5T 10 - 10 - • • • r 15 - r 15 p 20 - p 20 25 25 fr____...____----lif • 30 - 30 - 35 I i I i I i 1 I 1 I i i i I 1 i 1 i 1 I 1 i 1 I 35 I ' I ' 1 ' I ' I ' I ' I ' I ' I ' + ' I ' 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L 06/22/2016 ICR-5 ICR-5 Temperature Dissolved Oxygen 0 0 r ? _ 55 a 10 a 10 ( . - • 15 15 20 1 1 1 1 1 1 1 1 1 1 I 1 I 1 1 1 1 1 1 1 1 I 1 1 ' 20 I ' 1 ' I I ' 1 ' 1 ' 1 ' 1 ' 1 ' 1 ' 1 ' 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.0,mg/L INDIAN CREEK RESERVOIR PROFILE MONITOR 07/14/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DD/YY HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 7/14/2016 10:10:56 0.9 20.3 8.87 97.6 9.44 104.4 14.40 7/14/2016 10:12:07 3.1 20.0 8.90 97.5 9.46 104.1 7/14/2016 10:12:48 6.0 19.8 8.91 97.4 9.49 104.0 7/14/2016 10:13:34 9.0 19.8 8.90 97.4 9.48 103.8 7/14/2016 10:14:25 12.2 19.7 8.89 97.4 9.48 103.7 7/14/2016 10:15:14 15.0 19.2 8.80 97.3 8.86 95.9 7/14/2016 10:16:05 18.0 19.1 8.74 97.2 8.89 95.9 7/14/2016 10:16:58 20.5 19.0 8.73 97.2 8.88 95.9 7/14/2016 10:17:22 20.4 19.0 8.73 97.2 8.88 95.8 7/14/2016 10:18:15 24.0 19.0 8.73 97.2 8.88 95.8 7/14/2016 10:19:24 26.9 19.0 8.73 97.2 8.85 95.4 7/14/2016 10:19:54 30.0 18.9 8.71 97.2 8.75 94.3 7/14/2016 10:20:37 33.0 18.9 8.71 97.2 8.78 94.4 7/14/2016 10:21:34 36.0 18.8 8.69 97.4 8.59 92.4 7/14/2016 10:22:18 37.7 18.8 8.67 97.4 8.54 91.7 7/14/2016 10:23:04 39.7 18.8 8.57 97.6 8.09 86.9 ICR-03 7/14/2016 10:50:42 0.9 20.2 8.91 97.6 9.49 104.8 12.40 7/14/2016 10:51:22 2.9 19.9 8.90 97.5 9.43 103.5 7/14/2016 10:52:05 6.0 19.8 8.87 97.4 9.33 102.2 7/14/2016 10:52:34 9.0 19.7 8.88 97.4 9.40 102.7 7/14/2016 10:53:15 11.9 19.5 8.88 97.3 9.39 102.2 7/14/2016 10:53:53 14.9 19.3 8.87 97.2 9.34 101.4 7/14/2016 10:54:51 18.0 19.3 8.83 97.2 9.26 100.4 7/14/2016 10:55:37 21.1 19.2 8.80 97.1 9.11 98.6 7/14/2016 10:55:59 23.8 19.1 8.79 97.3 9.14 98.7 ICR-05 7/14/2016 11:06:46 1.0 20.5 9.04 97.4 9.83 109.2 10.80 7/14/2016 11:08:09 1.8 20.5 9.05 97.4 9.83 109.3 7/14/2016 11:09:04 3.0 20.5 9.05 97.4 9.83 109.3 7/14/2016 11:09:43 3.7 20.5 9.05 97.3 9.84 109.4 7/14/2016 11:10:14 3.6 20.5 9.05 97.4 9.84 109.4 7/14/2016 11:10:49 4.7 20.5 9.05 97.4 9.83 109.2 7/14/2016 11:11:12 5.4 20.4 9.05 97.3 9.85 109.2 7/14/2016 11:11:42 6.7 19.9 9.06 97.7 10.02 110.1 7/14/2016 11:12:19 7.8 19.5 9.08 97.3 10.29 112.1 7/14/2016 11:12:54 8.7 19.3 9.07 97.2 10.16 110.3 7/14/2016 11:13:24 9.6 19.3 9.05 97.1 10.07 109.1 7/14/2016 11:14:06 10.8 19.2 9.02 97.1 10.00 108.2 7/14/2016 11:14:50 12.1 19.0 9.27 96.2 11.66 125.7 ICR-06 7/14/2016 10:35:11 38.5 18.8 7.49 98.4 6.76 72.6 13.50 ICR-07 7/14/2016 10:41:11 36.0 18.9 8.40 97.6 8.06 86.7 12.30 ICR-08 7/14/2016 10:46:15 18.4 19.3 8.73 97.3 8.96 97.3 14.15 07/14/2016 ICR-1 ICR-1 Temperature Dissolved Oxygen 0 _ 0 • 5 _ I 5 _ f 10 - • 10 - 15 ri = 15 207. 20 a 25 - .e 25 - • m = c O 30 - • G 30 35 35 40 = 40 45 _ 45 _ — — 50 i I i i I i I 1 1 t 1 1 1 1 1 1 1 1 1 1 1 1 1 1 0 5 10 15 20 25 50 - ' I ' I I ' 1 ' I ' 1 ' I ' 1 • t ' 1 ' 1 ' 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C mg/L D.O. ICR-3 ICR-3 Temperature Dissolved Oxygen 0 - o — 5 _ 5 - 10 _ 10 E 15 15 11 .c = t = 0 20 - 0 20 _ 25 25 - - ' 30 30 _ 35 I I I I I I I I I I I I I I I I I I I I I I i i 35 ` 1 ' I ' I I ' 1 ' 1 ' I ' 1 ' 1 ' 1 ' 1 ' 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L 07/14/2016 ICR-5 ICR-5 Temperature Dissolved Oxygen 00 5 5 110 a 10 o - o - 15 15 20 20 I I I I 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D:O,mg/L INDIAN CREEK RESERVOIR PROFILE MONITOR 08/03/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DDM HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 8/3/2016 11:25:21 0.9 22.4 9.23 99.5 7.88 90.8 9.25 HiPox system off during profile 8/3/2016 11:26:20 3.0 22.0 9.28 99.4 7.98 91.3 HiPox system started at 11:30 8/3/2016 11:27:30 6.0 21.9 9.27 99.3 7.87 89.9 8/3/2016 11:28:13 9.0 21.6 9.22 98.9 7.48 84.8 8/3/2016 11:29:15 12.0 20.9 9.25 98.5 8.28 92.6 8/3/2016 11:30:13 12.2 20.8 9.23 98.4 8.31 92.9 8/3/2016 11:32:27 15.0 19.9 8.88 97.7 6.47 71.0 8/3/2016 11:33:28 18.1 19.5 8.65 97.8 5.93 64.5 8/3/2016 11:34:51 21.0 19.2 8.39 98.0 5.44 58.9 8/3/2016 11:36:02 24.0 19.1 8.24 98.5 4.92 53.1 8/3/2016 11:37:02 27.0 19.0 8.13 98.9 4.51 48.6 8/3/2016 11:38:04 30.0 18.9 8.02 99.3 4.12 44.3 8/3/2016 11:39:47 33.0 18.8 7.86 100.2 3.51 37.7 8/3/2016 11:41:06 36.2 18.7 7.71 103.5 1.63 17.5 8/3/2016 11:42:00 39.1 18.5 7.61 105.9 0.49 5.3 8/3/2016 11:44:07 41.8 18.3 7.25 130.9 0.11 1.2 ICR-03 8/3/2016 10:32:50 0.9 22.3 9.22 99.4 7.95 91.4 10.23 8/3/2016 10:34:23 3.0 22.1 9.27 99.3 7.99 91.5 8/3/2016 10:36:06 6.0 21.7 9.28 99.1 8.06 91.8 8/3/2016 10:37:22 9.0 21.5 9.26 98.8 7.91 89.5 8/3/2016 10:39:30 12.0 21.1 9.23 98.6 7.94 89.3 8/3/2016 10:40:51 15.0 20.2 9.04 97.6 7.34 81.0 8/3/2016 10:44:38 18.0 19.5 8.65 98.1 5.95 64.8 8/3/2016 10:45:33 21.0 19.2 8.38 99.2 4.58 49.6 8/3/2016 10:46:46 24.0 18.9 8.07 100.2 3.75 40.4 8/3/2016 10:48:35 26.0 18.8 7.30 124.9 0.23 2.5 ICR-05 8/3/2016 10:13:53 0.9 21.9 9.24 99.1 8.10 92.5 10.74 8/3/2016 10:15:03 2.1 21.9 9.26 99.0 8.08 92.2 8/3/2016 10:16:22 3.1 21.9 9.27 99.0 8.07 92.1 8/3/2016 10:17:25 4.1 21.8 9.27 99.0 8.06 91.8 8/3/2016 10:18:20 5.0 21.2 9.32 99.1 8.36 94.1 8/3/2016 10:19:06 5.9 21.0 9.34 98.9 8.46 94.9 8/3/2016 10:20:07 7.0 20.9 9.35 98.8 8.51 95.3 8/3/2016 10:20:53 8.1 20.8 9.35 98.6 8.54 95.4 8/3/2016 10:21:42 9.1 20.8 9.36 98.6 8.60 96.1 8/3/2016 10:22:53 10.0 20.8 9.36 98.6 8.67 96.9 8/3/2016 10:23:39 11.0 20.8 9.35 98.5 8.41 93.9 8/3/2016 10:24:27 12.0 20.5 8.90 99.8 2.91 32.4 ICR-06 8/3/2016 11:16:20 38.1 18.5 8.02 106.8 0.64 6.8 10.25 ICR-07 • 8/3/2016 11:10:40 35.8 18.7 7.75 104.8 1.70 18.2 8.75 ICR-08 8/3/2016 11:02:52 19.5 19.2 8.18 98.4 4.91 53.2 10.39 • 08/03/2016 ICR-1 ICR-1 Temperature Dissolved Oxygen 0 - - 0 5 = 5 10if 1 10 15 15 20 = 20 wD. 25 = a 25 : — - c 30 - o - 30 35 _ 35 40 1 40 45 _ 45 50 1 t 1 t I I i I i I I I i i I r 1 1 I I I I i i _ 0 5 10 15 20 25 50 ' 1 1 ' 1 ' 1 ' 1 ' 1 ' I ' 1 . 1 ' 1 ' t ' 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C mg/L D.O. ICR-3 ICR-3 Temperature Dissolved Oxygen • 0 _ 0 - 5 _ 5 -- 10 _ 10 / . ...- = = 15 - = 15 o. °' 20 20 O - 25 25 30 I 30 35 I I I I I I { { I I I I I I I I I I I I I I I I 35 ' 1 ' 1 ' 1 ' 1 1 ' 1 ' 1 ' 1 ' I - -I- ' I -' - 0 5 ,10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L • 08/03/2016 ICR-5 ICR-5 Temperature Dissolved Oxygen 0 0 • 5 5 Q. 10 a 10 0 - - • 15 15 - 20 11 i I I i lir 20 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C - D.O,mg/L INDIAN CREEK RESERVOIR PROFILE MONITOR 09/15/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DD/YY HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 9/15/2016 10:07:55 1.1 16.5 9.50 100.8 9.69 99.3 8.65 9/15/2016 10:11:10 2.4 16.5 9.48 100.7 9.71 99.3 9/15/2016 10:12:03 6.0 16.3 9.48 100.7 9.72 99.2 9/15/2016 10:12:48 9.2 16.3 9.46 100.7 9.76 99.6 9/15/2016 10:13:14 12.1 16.3 9.45 100.7 9.73 99.2 9/15/2016 10:13:53 15.0 16.3 9.44 100.7 9.69 98.8 9/15/2016 10:14:44 17.7 16.3 9.42 100.7 9.65 98.4 9/15/2016 10:15:22 20.2 16.3 9.41 100.7 9.56 97.4 9/15/2016 10:15:59 22.8 16.2 9.40 100.6 9.41 95.9 9/15/2016 10:16:27 27.0 16.2 9.38 100.6 9.32 94.9 9/15/2016 10:17:59 30.1 16.2 9.36 100.6 9.30 94.7 9/15/2016 10:18:17 33.0 16.2 9.36 100.7 9.32 94.8 9/15/2016 10:18:59 36.1 16.0 9.33 100.5 9.38 95.1 ICR-03 9/15/2016 10:49:51 1.1 16.7 9.41 100.8 9.67 99.4 8.30 9/15/2016 10:50:41 3.0 16.5 9.42 100.8 9.73 99.7 9/15/2016 10:51:16 6.0 16.4 9.43 100.7 9.72 99.3 9/15/2016 10:52:02 9.0 16.3 9.44 100.7 9.63 98.2 9/15/2016 10:52:28 12.0 16.3 9.43 100.6 9.58 97.7 9/15/2016 10:53:23 15.0 16.3 9.42 100.6 9.51 96.9 9/15/2016 10:54:58 18.1 16.3 9.41 100.6 9.44 96.2 9/15/2016 10:55:51 21.2 16.2 9.40 100.6 9.40 95.7 9/15/2016 10:56:45 24.1 16.2 9.36 97.5 7.40 75.3 ICR-05 9/15/2016 11:05:20 1.0 16.5 9.44 100.7 9.53 97.6 8.70 9/15/2016 11:06:20 2.1 16.5 9.44 100.7 9.56 98.0 9/15/2016 11:07:14 3.1 16.5 9.44 100.7 9.57 98.1 9/15/2016 11:07:50 4.0 16.5 9.43 100.7 9.65 98.8 9/15/2016 11:09:16 4.9 16.5 9.44 100.7 9.64 98.6 9/15/2016 11:10:33 5.9 16.3 9.45 100.7 9.71 99.1 9/15/2016 11:11:22 7.1 16.1 9.47 100.6 9.86 100.0 9/15/2016 11:12:18 8.0 16.0 9.46 100.7 10.00 101.4 9/15/2016 11:13:08 9.2 16.0 9.43 100.4 9.56 96.8 9/15/2016 11:14:04 10.4 15.9 9.21 99.4 7.59 76.7 ICR-06 9/15/2016 10:31:14 36.3 16.0 9.34 100.3 9.02 91.4 8.40 ICRF-07 9/15/2016 10:36:44 33.5 16.1 9.14 99.2 7.42 75.5 8.50 ICR-08 9/15/2016 10:45:46 20.06 16.266 9.38 100.3 8.95 91.2 8.55 09/15/2016 ICR-1 ICR-1 Temperature Dissolved Oxygen 0 - 0 = 5 5 10 1 10 (; 15 - — 15 20 _ - - — 20 o. 25 i r 25 m a GU 13 30 _ e 30 35 _ 1 35 40 _ 40 • 45 - 45 50 - f I I t 1 I 1 1 r I I I I i I I 1 I I I I 1 i t 0 • 5 , 10 15 20 25 50 - ' I I I I I I 1 ' 1 1 1 1 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C mg/L D.O. ICR-3 ICR-3 Temperature Dissolved Oxygen 0 _ 0 • 5 _ 5 - 10 _ — – 10 - 15 _ = 15 r t - _ I G 20 - • 0 20 = 25 25 30 30 35 i t I I 1 I I I I l I I I I I I I I I 1 i i t I 35 1 . 1 ' I . 1 ' 1 ' I ' 1 ' I I ' I ' I ' 0 5 10 15 • 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L ' 09/15/2016 ICR-5 ICR-5 Temperature Dissolved Oxygen 0 0 5 5 f. 10 = 10 Q G 0 15 15 20 1 1 I 1 1 t 1 1 1 1 1 1 I l I 1 1 1 1 1 1 1 1 20 1 1 . 1 ' 1 . 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C • D.O,mg/L INDIAN CREEK RESERVOIR PROFILE MONITOR 11/03/2016 Secchi Date Time Depth Temp pH SpCond DO DO 20 cm disc MM/DDM' HH:MM:SS feet deg C units uS/cm mg/L %Sat ft Comments ICR-01 11/3/2016 10:18:52 0.9 8.6 8.71 101.5 9.67 82.9 4.50 Oxygenation system off. 11/3/2016 10:19:39 3.0 8.5 8.73 101.6 9.63 82.3 11/3/2016 10:21:23 6.0 8.4 8.74 101.6 9.59 81.9 11/3/2016 10:22:26 9.0 8.4 8.73 101.6 9.54 81.4 11/3/2016 10:23:29 12.0 8.4 8.70 101.6 9.40 80.2 11/3/2016 10:24:41 15.0 8.4 8.66 101.6 9.33 79.6 11/3/2016 10:25:33 18.0 8.4 8.65 101.6 9.31 79.4 11/3/2016 10:26:16 21.0 8.4 8.63 101.6 9.29 79.2 11/3/2016 10:27:02 24.1 8.4 8.63 101.6 9.28 79.1 11/3/2016 10:28:29 27.0 8.4 8.61 101.6 9.29 79.1 11/3/2016 10:29:22 30.1 8.3 8.61 101.7 9.29 79.1 11/3/2016 10:30:28 33.1 8.3 8.59 101.7 9.28 79.1 11/3/2016 10:31:56 36.0 8.3 8.57 101.7 9.27 78.9 11/3/2016 10:34:15 38.3 8.2 8.44 101.5 8.73 74.2 ICR-03 11/3/2016 09:58:22 0.9 8.4 8.56 101.5 9.37 80.0 6.39 11/3/2016 09:59:36 3.0 8.4 8.60 101.6 9.33 79.7 11/3/2016 10:00:36 6.0 8.4 8.61 101.6 9.32 79.5 11/3/2016 10:02:12 9.0 8.4 8.63 101.6 9.30 79.3 11/3/2016 10:02:50 12.0 8.4 8.63 101.6 9.27 79.0 11/3/2016 10:03:35 15.0 8.4 8.62 101.6 9.25 78.8 11/3/2016 10:04:06 18.1 8.4 8.62 101.6 9.23 78.7 11/3/2016 10:04:48 21.0 8.4 8.61 101.6 9.21 78.5 11/3/2016 10:05:43 23.5 8.4 8.59 101.5 9.10 77.6 ICR-05 11/3/2016 09:42:19 0.9 8.3 8.22 101.8 9.34 79.6 5.95 11/3/2016 09:43:35 2.0 8.3 8.34 101.8 9.29 79.1 11/3/2016 09:44:20 3.0 8.3 8.39 101.8 9.28 79.0 11/3/2016 09:45:11 4.0 8.3 8.44 101.8 9.26 78.9 11/3/2016 09:45:55 5.0 8.3 8.47 101.8 9.26 78.8 11/3/2016 09:46:39 6.1 8.3 8.49 101.7 9.25 78.7 11/3/2016 09:47:50 7.0 8.3 8.52 101.8 9.24 78.6 11/3/2016 09:48:30 8.0 8.3 8.52 101.7 9.24 78.7 11/3/2016 09:49:28 9.0 8.3 8.53 101.8 9.23 78.6 11/3/2016 09:50:27 10.2 8.3 8.53 101.8 9.18 78.1 11/3/2016 09:51:26 10.9 8.3 8.46 101.3 8.94 76.1 11/03/2016 ICR-1 • ICR-1 Temperature Dissolved Oxygen 0 0 5 - 5 - 10 - 10 15 _ • 15 4 20 _ 1 20i . 0 25 1 « 25 a cu CI 30 _ ° 30 - 35 _ 35 40 _ 40 45 _ 45 - 50 1 1 1 1 I I I I I i I I I I I I I I I I { 1 1 1 • 0 5 10 15 20 25 50 ' 1 ' 1 ' 1 ' 1 ' 1 ' 1 ' +- I ' I ' I ' I ' 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C mg/L D.O. ICR-3 ICR-3 Temperature Dissolved Oxygen o _ •0 • 5 _ 5 10 _ 10 15 t 15 - .e - : 0 20 _ 20 _ 25 1 25 - — 30 I 30 35 1 i 1 1 1 1 i I i I I I 1 1 I i 1 I I 1 I I I t 35 ' 1 ' I ' I ' 1 ' 1 ' I ' 1 ' 1 ' 1 ' I ' 1 ' 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C D.O,mg/L 11/03/2016 ICR-5 ICR-5 Temperature Dissolved Oxygen 0 0 5 5 • a 10 a 10 ai 15 15 - 20 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 20 • '- • 0 5 10 15 20 25 0 1 2 3 4 5 6 7 8 9 10 11 12 Temperature,C • D.O,mg!L ALPINE COUNTY MONITORING ALPINE COUNTY MONITORING This monitoring program was developed with the assistance of the U.S. Department of Agriculture's Soil Conservation Service and the California State Water Quality Control Board, Lahontan Region. In each category of sample (soil, groundwater, and surfacewater), the sites are reported with tables showing the monthly results for 2016 and the yearly averages since monitoring was initiated. Trends are plotted for parameters indicative of wastewater. Groundwater, surfacewater and soil quality data for 2016 are summarized below. Fourteen new monitoring wells were drilled in Alpine County in 2011. These 14 new wells were first monitored monthly in 2012. Wells ACMW-20 thru ACMW-26 are require,d to be monitored in our reclamation permit. Several of these wells replaced domestic wells (GW-XX) and monitoring wells. In 2015 the regional Board reduced sampling frequency for all monitoring wells from monthly to quarterly. The Regional Board also replaced Total Coliform monitoring by the multiple tube fermentation method with E. coli monitoring using the Idexx Colilert QuantiTray method (chromogenic substrate). The water quality results obtained from monitoring wells ACMW-13 thru ACMW-19 will provide data needed to evaluate potential changes in water quality from the use of new irrigation fields designed for the application and temporary storage of reclaimed wastewater in Diamond Valley. The 2005 Arsenic results for the GW sites (domestic wells or potable water wells) should be viewed with caution; these results may be invalid. Domestic wells that previously showed no Arsenic had detectable Arsenic during 2005. The domestic wells that had previously showed detectable Arsenic all had significant increases in the concentration of Arsenic. This did not happen in the monitoring wells. All monitoring wells had either no detectable Arsenic or had the same concentration of Arsenic as in previous years. Surfacewaters Nitrate-N for surface waters was performed using the Brucine method prior.to March 1983. Beginning in March 1983, the cadmium reduction method was used for all Nitrate analyses on surfacewaters. For this reason, Nitrate-N data prior to 1983 should be used with caution. During 1997, a new sample type of bottle was used for dissolved nutrients, including Nitrate. These bottles were rinsed with HNO3. Due to the material of the sample bottles,the normal rinsing of the bottles was insufficient to remove all traces of Nitrate from the bottle. The spike in Nitrate results during 1997 can be attributed to this insufficient rinse. Beginning in 1998 the dissolved nutrient sample bottles were rinsed with HCI. Beginning in June 2000, Chloride, Nitrite-N, Nitrate-N, ortho-Phosphate-P and Sulfate were analyzed using ion chromatography. Starting in 2000, most surface water sites were sampled March-November, only. This may bias the annual averages to a higher value due to a higher percentage of months with irrigation occurring. Starting in 2001, monitoring was performed in irrigation ditches crossing the California / Nevada border. This was initiated following a request by the Nevada Department of Environmental Protection. Starting in 2002, a lower dilution was incorporated into the Total and Fecal Coliform test. This lowered the detection limit to 3 MPN/100mL. In 2015 The Regional Board replaced Total Coliform monitoring by the multiple tube fermentation method with E. coli monitoring using the Idexx Colilert Quanti-Tray method (chromogenic substrate). Soils In 2015 the Regional Board removed S8 from the list of soil sites to monitor. Sample Sites !SW-4.- .*.:. 4; : . Latitude 77"> Longitude^ , (natio, ' ..:' #wtF'a .,,, X15., . .r, ' .'4 ..:',,,r,1- 1.4.Fl rt,YpeSamp.e4*',, Alpine County Monitoring Wells ACMW-01AW 38.766952 -119.781561 Below Main Dam Monitoring Well ACMW-01BE 38.766333 -119.785321 Below Secondary Dam Monitoring Well ACMW-02N 38.772392 -119.776819 Access gate Monitoring Well ACMW-02S 38.772341 -119.776816 Access gate Monitoring Well ACMW-03W 38.815138 -119.778848 Fredericksburg D @Hwy 88 Monitoring Well ACMW-04W 38.836719 -119.779439 Gansberg Ranch Monitoring Well ACMW-06N 38.800522 -119.763225 Celio Ranch,along DV Rd Monitoring Well ACMW-06S 38.800481 -119.763195 Celio Ranch,along DV Rd Monitoring Well ACMW-07S 38.771882 -119.801658 Diamond Valley Ranch Monitoring Well ACMW-07D 38.771882 -119.801658 Diamond Valley Ranch Monitoring Well ACMW-08N 38.773618 -119.776847 Diamond Valley Ranch Monitoring Well ACMW-08S 38.773618 -119.776847 Diamond Valley Ranch Monitoring Well ACMW-09D 38.780489 -119.790314 Diamond Valley Ranch Monitoring Well ACMW-09S 38.780489 -119.790314 Diamond Valley Ranch Monitoring Well ACMW-10 38.773336 -119.794246 Diamond Valley Weather Station Monitoring Well ACMW-11 38.775595 -119.788216 Diamond Valley Ranch Monitoring Well ACMW-12 38.777644 -119.795388 Diamond Valley Ranch Monitoring Well ACMW-13 38.768977 119.797083 Diamond Valley Ranch Monitoring Well ACMW-14 38.767441 119.793215 Diamond Valley Ranch Monitoring Well ACMW-15 38.769600 119.784280 Diamond Valley Ranch Monitoring Well ACMW-16 38.773829 119.784173 Diamond Valley Ranch Monitoring Well ACMW-17 38.776273 119.790107 Diamond Valley Ranch Monitoring Well ACMW-18 38.779213 119.782997 Diamond Valley Ranch Monitoring Well ACMW-19 38.776249 119.762112 Diamond Valley Ranch Monitoring Well ACMW-20 38.808781 119.777665 Near SW-05 Monitoring Well ACMW-21 38.819915 119.777072 Emigrant Trail near Chambers Lane Monitoring Well ACMW-22 38.829022 119.783738 Fredericksburg Lane near S7 Monitoring Well ACMW-23 38.825384 119.760193 On road to SW-15,upstream(S) Monitoring Well ACMW-24 38.832193 119.757427 On road,downstream (N) of SW-15 Monitoring Well ACMW-25 38.830470 119.769901 Road between Brooke's&Neddenriep @ Neddenripp's Monitoring Well ACMW-26 38.840602 119.769677 Road between Brooke's&Neddenriep @ Stateline Monitoring Well Alpine County Domestic Well GW-01 38.761146 -119.810926 Cohen House Domestic Well GW-02 38.772195 -119.801259 DV Ranch Domestic well Domestic Well GW-03 38.789132 -119.752446 Springmeyer Ranch house Domestic Well GW-04 38.800343 -119.762579 Celio Ranch house Domestic Well GW-05 38.830897 -119.773807 Neddenriep Ranch house Domestic Well GW-07 38.838895 -119.794154 Gansberg,Jr,Ranch house Domestic Well GW-08 38.815528 -119.781095 Arant Ranch house Domestic Well GW-11 38.766522 -119.808540 Diamond Valley School Domestic Well GW-14 38.757140 -119.818462 Sierra Pines Store Domestic Well GW-17 DV Ranch Domestic well Domestic Well D:\Lahontan\Sample Sites\Lahontan Report-Sample Sites.xls Page 1 of 2 Sample Sites ,,c4 1.; xon'U e,� Location`: ` '`�";; '":. ' .v; : } '�°�si�` --trgjypeeSamp.e,. �a Alpine County Surfacewater Sites SW-01 38.768903 -119.838353 Carson River,W Fork,Crystal Springs Rd Surfacewater SW-02 38.756651 -119.806706 Indian Creek @ Diversion Surfacewater SW-03 38.773149 -119.772618 Indian Creek downstream of 1st bridge Surfacewater SW-04 38.776730 -119.760423 Indian Creek upstream of 2nd bridge Surfacewater SW-05 38.809525 -119.777030 Carson River,W Fork,Paynesville Surfacewater SW-06 38.840850 -119.764100 Carson River,W Fork,Stateline Surfacewater SW-07 38.854967 -119.786541 Fredericksburg Ditch Surfacewater SW-08 38.786579 -119.799800 Irrigation Ditch along Carson River Road Surfacewater SW-09 38.867242 -119.760810 Carson River,W Fork,Dressler Lane Surfacewater SW-10 38.788719 -119.750599 Indian Creek @ Springmeyer Ranch Surfacewater Alpine County Soils Sites S-2 38.800316 -119.764305 Celio Ranch Soil S-3 38.801156 -119.780333 Bentley Ranch Soil S-4 38.842761 -119.780047 Gansberg Ranch Soil S-5 38.836900 -119.780200 Gansberg Ranch Soil S-6 38.829075 -119.780010 Neddenriep Ranch Soil S-7 38.829190 -119.785420 Bruns Ranch Soil S-8 38.817425 -119.757000 On-Farm Soil Heavenly Valley Creek HVC-1 38.917861 -119.959632 Heavenly Valley Creek;Downstream of Pioneer Surfacewater HVC-2 38.920120 -119.969390 Heavenly Valley Creek;250'upstream of Pond#2 Surfacewater HVC-3 38.921373 -119.971421 Heavenly Valley Creek;25'downstream of Meadow Crest Dr Surfacewater HVC-4 38.920591 -119.969271 Heavenly Valley Creek;Effluent of drain from Lower Shop area Surfacewater HVC-5 38.921278 -119.971090 Heavenly Valley Creek;Effluent of drainage pipe along Meadow Crest Dr Surfacewater Tahoe Basin Monitoring Wells Control 38.9135951 -119.9623870 North east of post office @ Black Bart and Pioneer Trail Monitoring Well MW01-50 38.9131807 -119.9640739 SE corner of Emergency Retention Basin,At access gate to ERB Monitoring Well MW01.5 38.9129062 -119.9642166 SE corner of Emergency Retention Basin,At access gate to ERB Monitoring Well MW02-50 38.9128116 -119.9652141 South side of Emergency Retention Basin,on Black Bart Ave Monitoring Well MW03-50 38.9129187 -119.9657562 South side of Emergency Retention Basin,on Black Bart Ave Monitoring Well MW03.5 38.9140351 -119.9664341 W side of Emergency Retention Basin,off Hank Monk Ave Monitoring Well MW04-50 38.9148881 -119.9666463 W side of Emergency Retention Basin,off Hank Monk Ave Monitoring Well MW05-50 38.9157076 -119.9663302 NW corner of Emergency Retention Basin,off Hank Monk Ave Monitoring Well MW06/50 38.9157148 -119.9648075 North side of Emergency Retention Basin Monitoring Well MW07-50 38.9157020 -119.9639551 NE corner of Emergency Retention Basin Monitoring Well MW08-25 38.9213967 -119.9709800 SW corner of Pond#1,at south access gate to STPUD Monitoring Well MW11 38.9238680 -119.9677190 250 ft south east of North Gate(to Al Tahoe Blvd) Monitoring Well MW12 38.9226200 -119.9683700 110 ft south of Biosolids Building Monitoring Well MW13 38.9206200 -119.9692200 125 ft south east of Pond#2 Monitoring Well Ditch Sites DD-01 38.765624 -119.780543 Diamond Ditch @ beginning;HPR effluent Ditch SW-12 38.809127 -119.777411 Bruns Diversion Ditch SW-13 38.810082 -119.776900 Fredericksburg Ditch Ditch SW-14 38.866992 -119.794173 Fredericksburg Ditch Ditch SW-15 38.828440 -119.756263 Celio Tail water Ditch SW-16 38.866896 -119.783627 Drain Ditch @ Fairview Ln Ditch Reservoirs HPR 38.764500 -119.780450 Harvey Place Reservoir Reservoir D:\Lahontan\Sample Sites\Lahontan Report-Sample Sites.xls Page 2 of 2 '3u1'taoaadeyy`L661.(}1481.1?tdo3 .` +y No4YJ,r I55V1J OVO,: 000$1,17'17, LwunS ir>t84a9 WIL 5r�5a4:l „q � _ a. 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W:"!,:•:..t, : �,• ' j ' r:I \L_,:.." i_J lrrigatlon-Recylad-23 Water r t. ,.."....4;44,,.:..-;••.;•• -.: R '� J, + I1 .-.r A ,t ''...ii:-:. ;.� 1 :.• I .I lrriga9on-Blended Recycled -•',.• j \I., "r �ii.W `V; ,1� , I i v( i;'I II , ° ,.., 3 GGa SOUTH TAHOE PUBLIC UTILITY DISTRICT " RECYCLED WATER MONITORING PROGRAM • WELL LOCATIONS W%\E CARSON VALLEY GRUNDWAT, ER BASIN (6-6) ! ALPINE COUNTYCA ALPINE COUNTY SOILS Site S2a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Cello Type: KT 2016 Inches: 06-12 EC TKN NO3 P P2O5 K K2O Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Date pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg.Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 02/25/16 8.36 3.290 73.9 3,960 3.9 656 1,500 3,759 4,500 14 0.42 275 34.0 19 568 39 17.17 19.06 688 30.9 06/02/16 7.95 6.740 84.1 5,600 12.3 617 1,410 3,869 4,600 12 0.13 325 44.1 259 784 246 8.37 9.79 1,520 2.8 09/01/16 7.76 7.830 70.0 4,170 9.6 371 850 4,027 4,800 10 0.12 150 33.3 355 795 307 7.46 8.70 2,350 15.7 11/22/16 7.91 10.500 78.6 8,000 19.3 370 850 2,796 3,400 10 0.09 310 42.0 343 1120 583 8.54 9.98 3,140 19.2 Maximum 8.36 10.500 84.1 8,000 19.3 656 1,500 4,027 4,800 14 0.42 325 44.1 355 1120 583 17.17 19.06 3,140 30.9 Minimum 7.76 3.290 70.0 3,960 3.9 370 850 2,796 3,400 10 0.09 150 33.3 19 568 39 7.46 8.70 688 2.8 Average 8.00 7.090 76.7 5,433 11.3 504 1,153 3,613 4,325 11 0.19 265 38.4 244 817 294 10.39 11.88 1,925 17.2 #Tests 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Site 2a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Celio Type: KT From: 1981 Inches: 06-12 To: 2016 EC TKN NO3 P P2O5 K K2O Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Year pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg' mg/Kg mg/Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 1981 7.02 1.78 68.3 2,575 3.3 324 742 17,357 20,828 19 0.6 30 36 1982 6.95 1.38 66.9 3,487 3.7 666 1,525 15,155 18,186 18 0.4 37 28 1983 7.50 1.02 65.7 3,127 1.5 947 2,169 16,286 19,543 23 0.6 36 34 100 224 502 1984 7.97 1.59 62.7 2,585 1.7 664 1,521 14,255 17,106 17 0.3 13 29 92 126 53 2.52 2.4 350 1985 7.94 2.60 56.8 2,559 1.1 801 1,834 16,667 20,000 17 0.3 40 32 150 215 94 3.47 3.7 628 6.0 1986 7.86 3.00 63.7 2,827 1.0 818 1,873 13,183 15,820 17 0.3 104 33 157 276 103 4.10 4.5 658 6.9 1987 7.84 3.62 55.2 2,470 0.7 774 1,772 15,909 19,091 20 0.2 55 32 229 315 120 4.04 4.5_ 910 5.6 1988 7.76 5.90 63.0 2,938 1.0 815 1,866 13,183 15,820 19 0.2 132 32 323 597 218 6.20 7.3 1,625 7.6 1989 7.81 5.89 56.3 2,551 1.2 722 1,653 14,273 17,127 17 0.1 122 30 367 575 190 6.04 7.1 1,452 5.7 1990 7.87 5.81 58.3 2,491 1.2 696 1,594 13,875 16,650 13 0.1 109 31 328 566 190 6.08 7.1 1,513 5.1 1991 7.82 5.24 59.8 2,592 1.6 826 1,891 13,417 16,100 12 0.2 106 33 286 553 213 5.72 6.8 569 7.2 1992 7.86 5.33 58.5 2,376 1.8 832 1,905 13,583 16,300 10 0.1 120 25 253 652 152 7.91 9.3 1,440 6.3 1993 7.96 5.60 57.3 2,440 1.6 788 1,805 13,250 15,900 7 0.2 175 28 238 691 171 8.42 10.0 922 10.7 1994 7.96 5.12 61.2 2,365 1.7 888 2,034 14,500 17,400 8 0.1 130 33 210 628 171 7.45 8.7 1,382 .5.5 1995 8.00 3.23 53.3 2,217 3.4 851 1,948 13,771 16,444 14 0.7 48 36 164 356 100 5.41 6.3 740 5.4 1996 8.06 2.60 56.9 2,097 3.0 852 1,951 8 1.0 38 33 121 303 67 5.42 6.3 415 6.5 1997 8.19 1.85 69.2 2,346 2.4 833 1,908 8 1.0 83 34 69 246 43 5.61 6.5 399 4.3 1998 8.15 1.29 66.2 2,316 3.3 760 1,740 16 < 1.1 51 29 57 159 31 4.19 4.6 5.9 1999 8.11 1.38 63.5 2,433 8.0 903 2,067 17 1.5 41 33 60 168 28 4.47 4.9 5.0 2000 8.24 1.98 70.6 2,355 2.5 873 2,000 11,823 14,200 22 < 1.0 58 30 67 249 45 5.57 6.3 6.8 2001 8.24 2.13 64.1 2,200 3.0 758 1,735 11,550 13,875 29 1.8 48 32 69 315 55 6.90 8.0 455 5.8 2002 8.23 1.76 68.7 2,920 6.2 860 1,967 11,300 13,550 20 2.0 60 31 60 241 39 6.13 7.0 299 6.5 2003 8.25 0.93 61.9 1,965 4.1 883 2,020 13,250 15,875 22 1.0 33 31 53 121 26 3.37 3.5 177 7.3 2004 8.27 1.14 64.4 2,500 25.0 925 2,120 12,425 14,900 20 < 1.0 24 32 51 120 34 3.24 3.3 198 8.3 2005 8.03 1.50 60.7 1,745 2.1 948 2,170 13,050 15,675 23 < 1.0 16 32 69 151 45 3.46 3.6 302 9.1 2006 7.97 2.63 73.7 2,748 2.4 942 2,158 10,655 12,775 25 0.8 111 33 91 240 107 3.96 4.3 212 12.1 2007 8.06 1.41 67.5 3,035 1.8 929 2,128 6,948 8,325 21 0.1 35 67 157 51 3.52 3.7 263 10.7 2008 7.95 1.78 54.0 2,611 2.8 793 1,815 2,003 2,400 15 0.1 32 77 218 .51 4.65 5.2 249 17.7 ' 2009 8.16 3.32 68.9 3,185 4.3 778 1,780 2,735 3,250 9 , 0.1 65 30 80 477 88 8.57 9.9 879 11.0 2010 8.11 1.50 65.5 2,928 2.9 765 1,750 2,341 2,775 16 0.1 47 34 70 173 44 3.94 4.2 179 8.1 2011 8.10 1.93 65.2 2,838 3.0 702 1,610 2,800 3,400 17 0.1 102 34 68 300 57 6.51 7.5 311 10.1 2012 7.75 2.22 62.6 3,133 5.2 716 1,638 2,186 2,600 14 0.1 115 34 92 276 50 5.90 6.8 383 15.1 2013 7.87 3.59 68.1 3,098 5.1 699 1,600 2,830 3,400 14 0.2 115 30 178 377 109 5.48 6.2 1,046 9.8 2014 7.95 5.69 67.3 3,260 4.4 635 1,455 2,593 3,100 15 0.2 146 34 . 246 627 186 7.38 8.6 786 5.9 2015 7.86 8.41 68.7 5,008 7.3 603 1,383 2,515 3,025 15 0.1 264 34 231 1344 414 12.00 13.7 2,329 8.5 2016 8.00 7.09 76.7 5,433 11.3 504 1,153 3,613 4,325 11 0.2 265 38 244 817 294 10.39 11.9 1,925 17.2 Maximum 8.27 8.41 76.7 5,433 25.0 948 2,170 17,357 20,828 29 0 2.0 265 38 367 1344 414 12.00 13.7 2,329 17.7 Minimum 6.95 0.93 53.3 1,745 0.7 324 742 2,003 2,400 7 0.1 13 25 51 120 26 2.52 2.4 177 4.3 Average 7.93 3.15 63.6 2,771 3.8 780 1,785 10,415 12,493 16 0.5 86 32 148 378 110 5.70 6.5 758 8.2 #Tests 36 36 36 36 36 36 36 32 32 36 36 34 36 34 34 33 33 33 31 32 Site: S2a Ranch : Celio pH Salinity 11 10 10 9 9 8 7 = -- 8 - 6 o7 5 6 - 4 3 5 2 4 1 3 ',N,�.a.rn.rn,n,m, N rnaN, s00000nrnrno.'.N� �rn�, S O S 0 0 0 0 0 0 m g m o m m 0' O Z 0 0 0 0 3 0-N"'O N b rn rn m rn m m rn rn rn m m m rn m rn rn rn rn rn o N N N N N N N N N N N N N N N .-F F F F�F F2 F F T-F F F F F F.- N N N N N N N N N N N N N N N N N —6—pH —Linear(pH) +Salinity Linear(Salinity) Cation Exchange Capacity Sodium Adsorption Ratio 50 20 40 15 rn 30 -— o - = 10 - E 20 — N 5 �� ��� 10 0 m m m m V N�O A r nl<N BOO 0 i0 a0 m m N N O N rn m m rn m rn m m rn m m m rn m rn rn rn m N N N N N N N N N N N N N N N N R i N E I O .-I.- N N N N N N N N N N N N N N N N N —6—CEC —Linear(CEC) —6—SAR —Linear(SAR) Site S3a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Hall Type: SMB 2016 Inches: 06-12 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Date pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg.Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 02/25/16 5.58 0.403 38.0 2,120 4.5 571 1,310 1,541 1,800 16 0.27 15.0 22.4 9.3 41.8 4.74 2.78 2.70 49 36.1 06/02/16 5.52 0.288 31.8 1,550 4.0 793 1,820 1,964 2,400 14 0.14 12.0 19.2 14.6 35.6 3.03 2.21 1.91 13 25.6 09/01/16 5.92 0.208 31.0 1,590 3.4 621 1,420 2,419 2,900 10 0.26 3.0 13.4 14.9 18.4 3.44 1.12 < 1.00 8 54.5 11/22/16 5.72 0.351 35.6 2,250 2.0 240 550 1,322 1,600 18 0.03 11.0 18.6 21.9 34.7 5.14 1.73 1.24 41 12.6 Maximum 5.92 0.403 38.0 2,250 4.5 793 1,820 2,419 2,900 18 0.27 15.0 22.4 21.9 41.8 5.14 2.78 2.70 49 54.5 Minimum 5.52 0.208 31.0 1,550 2.0 240 550 1,322 1,600 10 0.03 3.0 13.4 9.3 18.4 3.03 1.12 < 1.00 8 12.6 Average 5.69 0.313 34.1 1,878 3.5 556 1,275 1,812 2,175 15 0.18 10.3 18.4 15.2 32.6 4.09 1.96 1.71 28 32.2 #Tests 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Site S3a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Hall Type: SMB From: 1981 Inches: 06-12 To: 2016 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Year pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 1981 5.68 1.44 31.4 1,411 0.6 420 962 5,716 6,859 40 0.7 24 23 1982 5.81 0.96 31.3 1,225 3.0 720 1,649 15,887 19,064 37 0.5 33 19 1983 5.93 0.66 44.4 1,928 0.5 790 1,809 14,210 17,052 29 0.5 59 20 61 1984 5.69 0.58 37.9 1,378 0.7 732 1,676 16,818 20,182 20 0.4 32 15 42 34 3 1.21 0.5 54 1985 5.86 0.80 36.2 1,479 0.6 774 1,772 19,036 22,843 18 0.6 26 18 60 54 20 1.59 1.0 103 10.5 1986 5.64 0.73 41.3 1,685 0.7 705 1,614 17,510 21,012 19 0.4 25 19 51 54 17 1.66 1.5 111 12.7 1987 5.30 0.67 35.7 1,435 0.4 768 1,759 18,182 21,818 19 0.5 27 17 52 56 17 1.65 1.5 103 12.2 1988 5.67 1.51 43.2 1,898 0.5 761 1,743 17,600 21,120 21 0.5 49 18 123 139 32 2.96 3.0 265 15.1 1989 5.51 1.73 38.6 1,605 0.5 695 1,591 18,000 21,600 19 0.3 57 17 112 165 40 3.46 3.7 322 9.1 1990 5.84 1.73 35.7 1,613 0.7 720 1,650 16,500 19,800 13 0.3 41 18 99 172 35 4.00 4.4 331 9.0 1991 5.85 2.08 36.5 1,551 0.6 789 1,807 18,167 21,800 13 0.5 46 21 141 182 54 3.39 3.6 428 10.9 1992 6.11 3.47 36.3 1,411 0.9 803 1,838 17,333 20,800 12 0.3 44 20 255 264 100 3.70 4.0 388 16.8 1993 5.90 1.61 37.2 1,712 0.8 716 1,640 16,818 20,182 8 0.3 33 18 105 121 40 2.59 2.6 280 12.6 1994 5.92 1.65 36.1 1,153 1.1 798 1,826 18,167 21,800 9 0.2 33 19 128 168 84 2.72 2.8 521 13.2 1995 6.10 1.20 33.7 1,439 4.5 782 1,790 16,694 19,889 14 0.7 26 21 80 100 31 2.54 2.5 168 7.6 1996 6.37 0.76 35.8 1,427 2.9 826 1,892 9 1.0 17 20 47 74 17 2.40 2.2 124 9.2 1997 5.97 0.56 35.7 1,188 1.4 738 1,688 10 1.0 15 17 33 49 12 1.96 1.8 68 15.4 1998 6.10 0.45 35.9 1,292 1.6 1,010 2,310 18 < 1.2 13 17 32 34 11 1.45 1.3 15.3 1999 5.99 0.36 36.4 1,403 2.8 1,078 2,470 24 < 1.0 6 18 23 28 6 1.45 1.3 17.5 2000 6.33 0.45 36.2 1,278 1.3 1,085 2,485 16,675 20,000 31 1.3 8 18 26 46 9 2.00 1.6 16.5 2001 6.19 0.30 35.2 1,167 1.2 860 1,970 16,600 19,925 33 2.8 4 18 27 33 9 1.43 < 1.0 25 16.3 2002 6.07 0.44 33.8 1,362 3.6 925 2,115 16,450 19,775 30 2.3 9 18 29 30 10 1.23 < 1.0 52 18.7 2003 6.46 0.26 35.7 1,400 1.2 1,023 2,343 16,667 20,000 59 1.0 6 20 22 23 5 1.14 1.0 16 11.4 2004 6.17 0.37 33.1 1,200 1.7 1,040 2,380 17,275 20,725 31 1.3 9 20 24 30 8 1.38 1.0 31 15.1 2005 5.69 0.34 36.5 1,300 1.0 1,095 2,508 15,850 19,025 30 1.3 16 20 26 24 8 1.03 < 1.0 23 21.4 2006 5.75 0.33 33.7 886 2.2 1,008 2,307 12,893 15,467 35 0.7 16 18 27 21 8 0.88 < 1.0 25 13.2 2007 5.58 0.38 41.0 1,898 2.1 930 2,130 5,854 7,025 25 0.1 22 26 33 8 1.45 < 1.1 35 14.5 2008 5.62 0.29 34.9 1,322 1.5 730 1,673 1,174 1,400 17 0.1 18 22 21 7 1.01 < 1.0 23 12.5 2009 5.90 0.22 33.1 1,016 1.5 766 1,753 1,504 1,800 11 0.1 10 18 14 17 5 0.71 < 1.0 16 6.3 2010 5.67 0.26 40.9 1,701 2.2 704 1,613 1,438 1,700 17 0.1 26 21 16 20 6 1.06 < 1.0 27 8.5 2011 5.57 0.29 38.5 1,730 1.3 741 1,695- 1,782 2,150 17 0.1 35 20 20 18 8 0.90 < 1.0 30 40.4 2012 6.10 0.33 34.4 1,557 0.8 654 1,500 1,040 1,267 15 0.2 42 19 43 14 8 0.65 < 1.0 15 10.3 2013 5.74 0.26 34.1 1,132 0.4 607 1,390 1,353 1,625 16 0.1 22 18 22 19 5 0.92 < 1.0 16 5.7 2014 5.97 0.38 32.4 997 0.5 691 1,585 1,508 1,825 16 0.2 21 17 23 36 7 1.73 < 1.4 17 5.6 2015 5.90 0.44 34.5 1,691 0.7 562 1,285 1,698 2,050 15 0.1 19 18 21 36 15 1.48 < 1.1 32 27.6 2016 5.69 0.31 34.1 1,878 3.5 556 1,275 1,812 2,175 15 0.2 10 18 15 33 4 1.96 1.7 28 32.2 Maximum 6.46 3.47 44.4 1,928 4.5 1,095 2,508 19,036 22,843 59 2.8 59 23 255 264 100 4.00 4.4 521 40.4 Minimum 5.30 0.22 31.3 886 0.4 420 962 1,040 1,267 8 0.1 4 15 14 14 3 0.65 0.5 15 5.6 Average 5.88 0.79 36.1 1,437 1.4 794 1,819 11,819 14,180 21 0.6 25 19 54 65 20 1.81 1.7 122 14.5 #Tests 36 36 36 36 36 36 36 32 32 36 36 34 36 34 33 33 33 33 30 32 Site: • S3a Ranch : Hall • pH Salinity 11 10 10 9 9 8 = 7 8 - 6 y 0 n 7 = E 5 6 E 4 5 3 = = 2 4 1 3 E N M V E T OMi m N M M I� M 8 0 0 0 0 0 0 8 O O N M <N 10 N m m t0 I� mdN ro O OO O o 00 O O N V N M M M M M M M M M W OI OMi M M M M M N N N R N R R N R N N N N R R N R M M M M M M M M M OI WA m M M NN N N NN N N N N N N N N N N N tpH Linear(pH) Salinity Linear(Salinity) Cation Exchange Capacity - Sodium Adsorption Ratio 50 20 40 - 15 — ao 30 - o - - o - a 10 � 20 ��� N - 5 10 0 7N M$2 2 h M V N 10 N M Q 2, 13 mo 0 O'^Cl N:D 0 N M V N tp t�ro b 1�N OI N M O •-N M O N ro M rn rn rn rn o o M rn m rn m rn rn m rn M M M M M M M M M $i i i N$ a R ����� �� N N N N N N N N N N N N N N N M N N N M N N N N N N N N N —�CEC Linear(CEC) --e—SAR Linear(SAR) Site S4a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Gansberg Type: DI 2016 Inches: 06-12 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Date pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg.Kg me/100g mg/L mg/L m./L SAR Na% m./L m./L 02/25/16 6.53 0.609 45.4 3,600 11.0 172 390 6,162 7,400 25 0.16 16.0 23.0 13.9 53.1 8.8 2.75 2.65 19 25.9 06/02/16 7.78 2.710 40.8 3,590 7.2 425 970 5,271 6,300 25 0.07 41.0 24.4 122.0 340.0 32.7 7.06 8.22 456 9.7 09/01/16 6.49 0.854 46.3 3,930 2.7 310 710 6,583 7,900 15 0.13 14.0 20.8 56.9 76.4 13.5 2.36 2.12 132 24.3 11/22/16 5.92 1.260 39.3 2,520 23.4 244 560 8,686 10,400 16 0.09 19.0 20.5 78.3 80.5 22.1 2.07 1.71 119 16.3 Maximum 7.78 2.710 46.3 3,930 23.4 425 970 8,686 10,400 25 0.16 41.0 24.4 122.0 340.0 32.7 7.06 8.22 456 25.9 Minimum 5.92 0.609 39.3 2,520 2.7 172 390 5,271 6,300 15 0.07 14.0 20.5 13.9 53.1 8.8 2.07 1.71 19 9.7. Average 6.68 1.358 43.0 3,410 11.1 288 658 6,676 8,000 20 0.11 22.5 22.2 67.8 137.5 19.3 3.56 3.68 182 19.0 #Tests 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Site S4a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY-SOIL QUALITY DATA Ranch: Gansberg Type: DI From: 1981 Inches: 06-12 To: 2016 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Year pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 1981 5.80 0.92 47.0 1,533 1.2 206 472 20,757 24,908 28 1.4 17 14 1982 5.92 0.76 45.3 1,938 5.6 473 1,083 20,766 24,919 25 0.8 24 14 1983 6.37 0.36 44.3 1,907 1.5 440 1,008 19,075 22,890 28 0.5 22 16 39 51 89 1984 6.19 0.39 37.6 1,392 1.3 349 799 23,191 27,829 29 0.4 10 17 34 23 8 1.02 0.4 36 1985 6.18 0.41 37.7 1,710 0.8 455 1,042 23,075 27,690 27 0.3 9 19 33 34 7 1.39 0.8 52 6.4 1986 6.08 0.52 39.4 1,625 1.0 436 998 20,800 24,960 26 0.3 11 18 55 52 9 1.98 1.9 125 6.5 1987 6.23 1.00 38.4 1,837 0.6 354 811 24,455 29,346 29 0.3 14 17 91 68 20 1.78 1.5 262 10.6 1988 6.18 1.44 41.9 2,051 0.5 399 914 22,500 27,000 30 0.4 20 18 115 104 25 2.35 2.2 317 9.9 1989 6.35 3.26 39.2 1,920 0.7 311 712 23,455 28,145 28 0.2 34 17 219 205 48 3.22 3.3 699 11.1 1990 6.69 1.29 37.5 1,742 1.2 392 899 19,125 22,950 21 0.2 20 17 99 107 23 2.48 2.5 389 14.6 1991 6.57 0.97 38.1 1,860 2.4 381 872 21,667 26,000 20 0.3 12 20 65 82 15 2.38 2.2 171 11.4 1992 6.55 0.98 37.8 1,765 1.5 419 960 21,917 26,300 20 0.3 12 19 72 78 15 2.10 1.8 183 12.3 1993 6.47 0.68 35.8 1,670 2.9 392 897 23,417 28,100 14 0.2 9 19 48 49 15 1.69 1.4 66 9.9 1994 6.53 0.67 35.8 1,381 2.4 423 969 22,500 27,000 14 0.1 10 18 46 65 10 2.25 2.0 214 9.7 1995 6.44 1.15 33.5 1,330 8.0 445 1,020 22,194 26,667 21 0.5 9 13 74 72 17 -1.94 1.8 148 6.4 1996 6.82 1.13 36.6 1,594 7.4 470 1,078 14 1.0 11 18 75 91 17 2.39 2.4 82 14.6 1997 6.51 0.51 37.1 1,434 5.1 398 913 16 1.0 4 17 36 47 8 1.84 1.7 40 11.0 1998 6.58 0.81 35.7 1,235 5.0 620 1,420 28 1.2 6 17 45 72 10 2.61 2.4 12.0 1999 6.73 0.97 38.5 1,650 6.9 570 1,305 37 1.8 7 19 66 82 15 2.47 2.3 13.4 2000 6.94 1.63 39.0 1,725 6.6 568 1,300 22,800 27,350 46 < 1.0 16 19 77 136 21 3.55 3.7 19.0 2001 6.83 1.11 37.3 1,585 5.3 515 1,177 22,700 27,225 53 2.0 8 21 86 102 20 2.69 2.7 152 16.7 2002 6.49 0.46 37.3 1,753 3.8 555 1,272 17,300 20,750 40 1.8 3 19 38 47 9 1.85 1.7 52 19.4 2003 6.82 0.55 36.6 1,515 3.2 538 1,230 22,125 26,575 69 1.5 4 19 34 69 7 2.78 2004 6.33 1.09 33.6 1,428 3.8 595 1,363 23,775 28,525 44 1.0 7 19 24 65 16 2.58 2.4 80 11.8 2005 6.49 0.54 36.8 1,550 3.2 643 1,473 22,050 26,450 42 1.0 7 21 32 54 6 2.30 2.1 61 10.3 2006 6.17 0.43 41.7 1,711 8.8 639 1,463 . 18,460 22,150 42 1.0 6 19 30 41 6 1.88 1.5 29 13.9 2007 6.23 0.46 42.0 2,195 1.2 482 1,105 9,518 11,400 31 0.1 22 35 56 7 2.29 2.0 50 9.4 2008 6.34 0.51 34.4 1,270 2.1 335 765 5,049 6,050 23 0.1 18 31 65 6 2.75 2.6 60 6.5 2009 6.54 0.65 38.3 2,058 6.2 457 1,048 6,487 7,800 15 0.1 10 20 30 85 8 3.54 3.7 69 13.3 2010 6.54 0.63 38.8 2,000 5.1 366 835 5,847 7,025 25 0.1 19 20 30 57 6 2.44 2.4 54 9.1 2011 6.44 0.55 38.6 1,800 6.8 507 1,160 6,973 8,333 27 0.1 55 20 31 70 7 2.94 2.9 35 5.8 2012 6.85 1.16 38.3 2,023 5.8 415 948 5,630 6,750 23 0.2 41 19 57 141 14. 4.47 5.0 195 6.5 2013 6.54 0.68 40.4 1,920 7.4 278 638 6,827 8,175 23 0.2 22 16 43 80 8 2.91 2.9 46 6.4 2014 6.46 0.60 37.8 1,835 7.9 348 798 5,579 6,700 24 0.2 19 17 38 72 8 2.89 2.8 28 8.3 2015 6.14 0.94 40.8 2,793 9.8 352 805 5,266 6,325 25 0.1 23 20 42 80 17 2.60 2.4 84 13.7 2016 6.68 1.36 43.0 3,410 11.1 288 658 6,676 8,000 20 0.1 23 22 68 138 19 3.56 3.7 182 19.0 Maximum 6.94 3.26 47.0 3,410 11.1 643 1,473 24,455 29,346 69 2.0 54.667 22 219 205 48 4.47 5.0 699 19.4 Minimum 5.80 0.36 33.5 1,235 0.5 206 472 5,049 6,050 14 0.1 3 13 24 23 6 1.02 0.4 28 5.8 Average 6.44 0.88 38.7 1,782 4.3 439 1,006 16,936 20,321 29 0.6 15 18 57 78 14 2.48 2.3 135 11.3 #Tests 36 36 36 36 36 36 36 32 32 36 36 34 36 34 34 33 33 32 30 31 Site: S4a Ranch : Gansberg pH Salinity 11 10 10 9 • 8 9 7 8 6 _ _ O a E 7 5 _ 3 5 2 4 1 3 O , 1 , , mmmOmTmOOOmmmmSONNNNNN NrrN OOmO0OOOiOOm NON O N N N O NN�O tpH Linear(pH) — Salinity Linear(Salinity) Cation Exchange Capacity Sodium Adsorption Ratio 50 20 40 15 co 30 - o - o - a 10 - 20 A. 5 10 OO N t+l V N 0 ERE EOmE ENN NONNNNONONO b m W O E OmS M O N O m NN N N. .... ... .... .......N NNNNNNN —.—CEC Linear(CEC) --.—SAR Linear(SAR) Site S5a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Gansberg Type: HRB 2016 Inches: 06-12 EC TKN NO3 P No, K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI. Exch P Date pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg.Kg me/100g mg/L mg/L_ mg/L SAR Na% mg/L mg/L 02/25/16 6.08 0.371 38.7 1,970 13.1 555 1,270 3,598 4,300 19 0.25 11.0 16.4 9.4 48.7 4.08 3.34 3.46 17 19.2 06/02/16 6.12 0.346 37.5 1,980 - 7.7 471 1,080 3,959 4,800 20 0.08 12.0 17.9 21.8 40.6 3.99 2.10 1.75 9 5.7 09/01/16 5.98 0.411 35.4 2,020 8.3 310 710 3,488 4,200 14 0.14 5.0 14.0 26.9 43.9 4.94 2.04 1.67 36 9.1 11/22/16 5.96 0.466 36.5 1,550 6.5 418 960 3,769 4,500 16 0.14 11.0 17.9 27.0 55.4 5.39 2.55 2.37 64 6.3 Maximum 6.12 0.466 38.7 2,020 13.1 555 1,270 3,959 4,800 20 0.25 12.0 17.9 27.0 55.4 5.39 3.34 3.46 64 19.2 Minimum 5.96 0.346 35.4 1,550 6.5 310 710 3,488 4,200 14 0.08 5.0 14.0 9.4 40.6 3.99 2.04 1.67 9 5.7 Average 6.04 0.399 37.0 1,880 8.9 439 1,005 3,704 4,450 17 0.2 9.8 16.6 21.3 47.2 4.60 2.51 2.31 31 10.1 #Tests 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Site S5a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Gansberg Type: HRB From: 1981 Inches: 06-12 To: 2016 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Year pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 1981 5.80 1.08 31.2 997 1.4 233 534 19,729 23,675 21 10.9 19 12 1982 6.05 0.60 29.5 1,011 2.4 455 1,042 20,944 25,133 21 0.7 17 10 1983 6.14 0.18 29.5 982 0.9 462 1,058 18,362• 22,034 22 0.6 9 10 24 33 42 1984 6.12 0.23 29.6 1,019 0.8 462 1,058 21,827 26,192 26 0.7 5 11 18 20 3 1.15 0.5 27 1985 6.27 0.35 28.1 1,031 0.9 501 1,147 22,575 27,090 21 0.6 5 11 24 39 4 2.05 1.7 42 5.8 1986 6.12 0.33 29.5 1,048 0.6 440 1,008 21,100 25,320 20 0.5 7 11 27 33 3 1.68 1.6 35 6.2 1987 6.22 0.63 29.6 1,037 0.5 470 1,076 24,727 29,672 21 0.6 9 13 30 58 4 2.56 2.5 74 6.5 1988 6.16 0.65 29.4 1,137 0.8 475 1,088 21,667 26,000 24 0.6 13 12 31 93 5 4.34 4.9 74 7.6 1989 6.02 0.79 28.9 1,128 1.1 398 912 21,727 26,073 19 0.4 11 11 47 90 7 3.32 3.5 92 7.6 1990 6.26 0.56 28.0 1,140 1.2 467 1,068 21,500 25,800 14 0.4 8 10 27 77 4 3.71 4.0 74 6.7 1991 6.21 0.44 29.8 1,143 2.9 467 1,070 22,083 26,500 15 0.7 6 12 21 68 4 3.62 3.9 16 11.8 1992 6.32 0.41 29.1 1,220 3.6 556 1,273 20,917 25,100 16 0.7 5 14 19 57 4 3.17 3.4 17 9.6 1993 6.08 0.37 29.2 1,146 3.2 510 1,168 20,250 24,300 10 0.4 6 14 19 45 3 2.57 2.5 37 9.9 1994 6.08 0.42 28.8 917 4.9 570 1,305 23,083 27,700 8 0.3 5 12 25 47 4 2.31 2.1 41 7.8 1995 6.18 0.35 28.2 951 5.2 585 1,341 20,644 24,778 16 1.5 4 13 16 42 4 2.58 2.5 32 7.7 1996 6.20 0.35 29.7 996 6.2 572 1,310 8 1.0 1 13 26 37 4 1.90 1.7 21 4.5 1997 6.18 0.28 32.9 1,006 5.2 513 1,175 11 1.0 1 13 20 28 4 1.48 1.1 16 6.7 1998 6.23 0.51 32.9 1,158 9.7 850 1,950 20 1.3 4 11 42 34 8 1.37 1.1 15.2 1999 6.20 0.37 30.6 1,047 6.6 813 1,860 28 1.8 2 12 40 28 6 1.10 < 1.0 16.3 2000 6.12 0.28 31.8 1,135 6.0 810 1,855 18,825 22,575 33 1.0 3 15 19 28 4 1.54 1.1 10.5 2001 6.00 0.47 32.2 1,015 8.5 708 1,620 20,675 24,825 36 1.5 2 15 31 48 6 2.14 1.8 35 9.7 2002 6.26 0.29 30.7 1,114 5.0 705 1,615 19,775 23,750 31 2.3 2 15 16 38 3 2.37 2.2 20 9.6 2003 6.34 0.28 32.2 1,200 4.0 740 1,693 19,663 23,625 30 2.0 3 14 17 35 3 2.10 1.8 27 7.2 2004 6.14 0.27 32.0 1,163 3.8 930 2,130 20,850 25,025 37 1.5 5 17 12 37 2 2.51 2.3 19 7.6 2005 6.27 0.23 33.3 1,093 2.5 895 2,050 18,675 22,400 35 2.0 4 16 12 32 2 2.28 2.0 13 6.3 2006 6.16 0.24 35.1 1,095 3.1 818 1,875 16,070 19,300 37 1.0 8 14 16 29 3 1.79 1.3 10 8.6 2007 5.98 0.30 33.7 1,200 1.7 557 1,273 7,886 9,450 24 0.1 15 18 . 34 3 1.88 1.6 27 6.6 2008 6.06 0.38 31.9 1,052 6.1 434 993 2,975 3,550 18 0.1 14 22 51 3 2.72 2.6 25 7.3 2009 6.04 0.38 32.6 1,228 6.2 588 1,345 2,816 3,375 12 0.2 9 16 19 55 4 3.09 3.1 31 7.7 2010 6.09 0.36 33.3 1,400 6.5 500 1,145 2,953 3,525 19 0.1 16 15 23 46 5 2.33 2.1 19 5.0 2011 6.03 0.27 35.6 1,340 6.2 595 1,363 3,733 4,475 21 0.1 32 15 18 34 4 1.91 1.5 10 7.5 2012 6.01 0.34 35.6 1,618 5.9 446 1,020 2,615 3,175 17 0.1 29 15 23 38 5 1.94 1.6 21 6.5 2013 5.80 0.42 36.3 1,488 5.6 598 1,370 3,479 4,150 17 0.1 26 15 33 39 6 1.68 1.3 25 8.3 2014 5.98 0.33 34.1 1,260 5.5 489 1,120 2,887 3,475 20 0.3 15 14 20 42 4 2.25 2.0 9 7.4 2015 5.70 0.56 35.3 1,720 6.4 449 1,028 3,231 3,875 20 0.1 16 16 39 59 8 2.38 2.1 68 5.2 2016 6.04 0.40 37.0 1,880 8.9 439 1,005 3,704 4,450 17 0.2 10 17 21 47 5 2.51 2.3 31 10.1 Maximum 6.34 1.08 37.0 1,880 9.7 930 2,130 24,727 29,672 37 10.9 32 17 47 93 8 4.34 4.9 92 16.3 Minimum 5.70 0.18 28.0 917 0.5 233 534 2,615 3,175 8 0.1 1 10 12 20 2 1.10 0.5 9 4.5 Average 6.11 0.41 31.6 1,170 4.2 569 1,304 15,373 18,449 21 1.0 9 13 24 45 4 2.31 2.1 33 8.2 #Tests 36 36 36 36 36 36 36 32 32 36 36 34 36 34 34 33 33 33 31 32 Site: S5a • Ranch : Gansberg pH Salinity • 11 10 10 9 8 : 9 7 = 8 6 y _ O D. 7 _ E 5 6 E 4 3 5 2 4 1 • 4 • • • 3 0 r mNO7Ommmm mOOONNCNNNNNNNV OOmnWO00mOmmENNNNNNoN N N N N N N N pH Linear(pH) +Salinity Linear(Salinity) Cation Exchange Capacity Sodium Adsorption Ratio 50 20 40 - 15 30 - o - - _ a 10 - rn E 20 5 10 0 O EREME§ V00000MoONNNNNN " N dO °" ° §gili b m m o i N NNNNNNNO NNN —.—CEC Linear(CEC) --e—SAR Linear(SAR) Site S6a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Neddenriep Type: DWB 2016 Inches: 06-12 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Date pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg.Kg mei mg/L mg/L mg/L SAR Na% mg/L mg/L 02/25/16 6.78 0.415 46.3 2,310 8.6 372 850 3,982 4,800 30 0.37 14.0 19.1 4.5 72.3 3.54 6.20 7.16 19 19.1 06/02/16 7.55 0.539 45.9 2,670 14.1 244 560 5,870 7,000 29 0.04 22.0 22.4 58.9 36.2 8.61 1.17 < 1.00 5 20.4 09/01/16 7.26 1.340 42.9 3,110 35.9 421 960 4,389 5,300 20 0.15 18.0 16.7 126.0 108.0 17.30 2.39 2.16 131 14.0 11/22/16 5.75 1.600 46.9 3,480 35.9 358 820 4,748 5,700 25 0.03 15.0 19.2 109.0 154.0 20.30 3.55 3.74 223 24.7 Maximum 7.55 1.600 46.9 3,480 35.9 421 960 5,870 7,000 30 0.37 22.0 22.4 126.0 154.0 20.30 6.20 7.16 223 24.7 Minimum 5.75 0.415 42.9 2,310 8.6 244 560 3,982 4,800 20 0.03 14.0 16.7 4.5 36.2 3.54 1.17 < 1.00 5 14.0 Average 6.84 0.974 45.5 2,893 23.6 349 798 4,747 5,700 _ 26 0.15 17.3 19.4 74.6 92.6 12.44 3.33 3.52 95 19.6 #Tests 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Site S6a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Neddenriep Type: DWB From: 1981 Inches: 06-12 To: 2016 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Year pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 1981 4.96 1.55 29.3 1,509 0.9 500 1,145 18,357 22,028 28 0.5 17 15 1982 5.60 1.27 56.3 2,145 3.2 672 1,539 17,111 20,533 30 0.2 42 15 1983 6.07 0.69 45.1 1,786 0.9 702 1,608 17,395 20,874 28 0.2 32 15 30 101 123 1984 5.94 0.30 43.6 1,797 0.7 701 1,605 19,055 22,866 28 0.4 15 17 10 43 2 3.30 3.5 35 1985 6.04 0.33 44.0 2,019 0.8 754 1,727 21,633 25,960 28 0.2 10 17 12 51 3 3.66 4.0 43 27.4 1986 6.08 0.31 42.7 1,780. 1.2 611 1,399 18,908 22,690 28 0.3 10 15 16 43 2 3.27 3.6 38 33.8 1987 6.13 0.59 41.6 1,815 0.5 732 1,676 20,000 24,000 32 0.3 15 15 26 84 5 4.16 4.6 112 37.7 1988 6.18 1.22 41.3 1,787 0.6 748 1,713 19,000 22,800 29 0.3 24 16 48 173 13 6.16 7.2 256 28.8 1989 6.12 0.83 39.5 1,672 0.6 614 1,405 20,727 24,873 29 0.2 17 14 28 123 6 5.61 6.5 155 23.3 1990 6.27 0.49 38.8 1,622 0.9 664 1,521 16,625 19,950 23 0.2 12 14 28 95 5 4.73 5.4 69 26.6 1991 5.97 0.69 37.9 1,534 1.6 680 1,557 19,833 23,800 22 0.2 12 17 23 111 5 5.46 6.3 132 56.4 1992 6.25 0.80 36.9 1,443 1.4 663 1,519 19,833. 23,800 22 0.2 26 15 26 113 6 5.62 6.6 348 29.3 1993 6.54 0.60 36.4 1,369 2.3 603 1,382 19,833 23,800 17 0.2 10 18 19 100 5 5.49 6.4 90 37.2 1994 6.11 0.89 39.2 1,360 4.0 712 1,630 20,333 24,400 15 0.2 11 14 32 134 7 6.02 7.0 292 44.0 1995 6.01 0.78 36.4 1,322 9.2 684 1,567 20,126 24,111 24 0.5 11 14 36 99 12 4.65 5.2 91 27.8 1996 6.22 0.61 37.6 1,299 8.4 687 1,573 14 1.0 4 16 30 79 6 3.92 4.3 39 31.1 1997 6.03 0.30 42.5 1,157 2.6 556 1,273 21 1.0 7 14 12 40 2 3.26 3.5 27 36.9 1998 5.99 0.27 41.7 1,342 3.2 620 1,420 38 1.2 8 11 10 35 2 3.10 3.2 32.8 1999 6.38 0.31 42.7 1,490 3.1 740 1,697 34 1.5 4 16 15 39 3 2.57 2.4 39.4 2000 6.04 0.26 44.1 1,416 5.3 723 1,655 19,550 23,475 44 < 1.0 8 18 16 27 6 1.69 1.4 37.0 2001 6.38 0.42 42.1 1,358 3.4 690 1,582 17,125 20,550 42 2.3 4 17 17 60 4 3.46 3.6 65 36.3 2002 6.58 0.50 44.2 1,586 3.1 803 1,837 18,975 22,775 37 1.5 4 19 20 76 4 4.01 4.3 63 40.8 2003 6.47 0.36 45.0 1,553 1.9 858 1,965 19,055 22,850 35 1.0 9 18 17 47 3 3.07 3.1 . 42 35.0 2004 6.27 0.42 43.3 1,493 5.2 858 1,965 18,650 22,375 43 1.3 7 17 15 59 3 3.67 3.9 55 25.4 2005 6.29 0.43 41.3 1,525 3.8 908 2,080 18,950 22,725 42 1.0 9 17 26 44 4 2.35 2.1 56 21.2 2006 5.96 0.46 43.9 1,380 4.2 857 1,963 15,443 18,525 44 0.9 13 18 15 78 3 5.21 5.9 56 38.4 2007 6.48 0.46 44.8 1,760 2.3 693 1,585 8,630 10,350 35 0.1 19 19 81 3 4.66 5.2 57 17.3 2008 6.46 0.47 41.2 1,347 3.7 698 1,598 3,592 4,300 24 0.1 18 18 83 3 4.92 5.5 46 26.2 2009 6.39 0.54 44.6 1,885 8.2 703 1,610 3,223 3,875 14 0.1 11 19 15 90 3 5.59 6.4 56 23.2 2010 6.24 0.64 44.8 2,113 12.8 729 _1,668 3,466 4,150 25 0.1 28 20 26 88 5 4.44 4.9 64 26.2 2011 6.12 0.50 43.0 1,660 13.3 554 1,268 4,913 5,875 29 0.1 44 18 28 57 6 2.85 2.9 24 25.0 2012 6.38 0.92 44.2 1,983 12.0 690 1,580 3,092 3,725 24 0.2 45 19 48 107 11 4.21 4.6 157 19.8 2013 6.26 0.56 46.0 1,838 8.9 584 1,338 3,888 4,675 23 0.3 23 18 27 77 4 3.68 3.9 60 19.3 2014 6.44 0.55 44.5 1,998 7.7 615 1,408 4,473 5,375 25 0.3 17 17 29 74 6 3.54 3.7 33 22.2 2015 6.18 0.64 41.2 2,067 11.2 420 965 4,229 5,075 30 0.1 21 17 25 97 15 4.37 4.8 42 12.8 2016 6.84 0.97 45.5 2,893 23.6 349 798 4,747 5,700 26 0.1 17 19 75 93 12 3.33 3.5 95 19.6 Maximum 6.84 1.55 56.3 2,893 23.6 908 2,080 21,633 25,960 44 2.3 44.5 20 75 173 15 6.16 7.2 348 56.4 Minimum 4.96 0.26 29.3 1,157 0.5 349 798 3,092 3,725 14 0.1 4 11 10 27 2 1.69 1.4 24 12.8 Average 6.18 0.61 42.1 1,669 4.9 677 1,550 14,399 17,277 29 0.5 16 17 25 79 5 4.12 4.5 91 29.9 #Tests 36 36 36 36 36 36 36 32 32 36 36 34 36 34 34 33 33 33 31 32 Site: S6a Ranch : Neddenriep pH Salinity 11 10 10 9 8 9 _- — — 7 - 8 6 0 a E 5 6 E 4 3 5 = 2 4 1 N4_,..."4„, 3 m rn m m m m m `N m V 0 0 0 0 0 0 0 0 N Ol O ro 0 N $ is N th V ul�D Ri O�00 r ON O d OO ro o O N M O�()10 m m N N N N N N N N N N N N N N N N N O O m m O O m m O O m O m m m m N N R N R N R N N N N N N N N N N t pH Linear(pH) t Salinity Linear(Salinity) Cation Exchange Capacity Sodium Adsorption Ratio 50 20 40 - 15 co 30 — - o - 10 E 20 0 'O W m N N m m 0 0 0 0 0 0 0 0 0 0 0 N th <N ro 0 'W W< C1 m N 00 o N t7 o C O o W m W m m m O N R N O m m m O N N N N N N N N N N N N N N N N m m m O m O E O m O O E O O W O m m N N N N N N N ON N N R N N N N N N --•--CEC —Linear(CEC) —CSAR —Linear(SAR) Site S7a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Bruns Type: JaC 2016 Inches: 06-12 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Date pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg_/Kg mg.Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 02/25/16 5.79 0.207 43.7 2,810 7.7 553 1,270 4,847 5,800 28 0.30 11.0 15.0 4.0 7.74 3.91 0.66 < 1.00 <4 27.4 06/02/16 5.72 0.227 38.1 2,320 6.4 604 1,380 6,186 7,400 27 0.13 24.0 17.3 22.9 8.19 4.48 0.41 < 1.00 3.5 6.1 09/01/16 5.77 0.235 47.3 3,010 3.4 493 1,130 5,560 6,700 18 0.13 5.0 17.5 34.7 5.92 6.48 0.24 < 1.00 5.7 13.5 11/22/16 5.76 0.374 39.1 2,310 9.6 240 550 8,826 10,600 25 0.06 10.0 15.0 37.9 6.06 9.72 0.23 < 1.00 10.6 8.5 Maximum 5.79 0.374 47.3 3,010 9.6 604 1,380 8,826 10,600 28 0.30 24.0 17.5 37.9 8.19 9.72 0.66 < 1.00 10.6 27.4 Minimum 5.72 0.207 38.1 2,310 3.4 240 550 4,847 5,800 18 0.06 5.0 15.0 4.0 5.92 3.91 0.23 < 1.00 0.0 6.1 Average 5.76 0.261 42.1 2,613 6.8 473 1,083 6,355 7,625 24 0.16 12.5 16.2 24.9 6.98 6.15 0.39 < 1.00 5.0 13.9 #Tests 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 Site S7a SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY SOIL QUALITY DATA Ranch: Bruns - _ Type: JaC From: 1981 Inches: 06-12 To: 2016 EC TKN NO3 P P205 K K20 Cu Mo SO4 CEC Ca Na Mg Exch CI Exch P Year pH mmho Sat% mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg mg/Kg me/100g mg/L mg/L mg/L SAR Na% mg/L mg/L 1981 5.58 0.67 37.5 1,384 0.9 301 689 20,371 24,445 305 0.8 17 13 1982 5.77 0.26 39.4 1,728 4.5 520 1,191 18,522 22,226 33 0.5 14 13 1983 5.98 0.15 41.2 1,864 0.8 611 1,399 19,125 22,950 31 0.6 17 16 17 12 22 1984 5.87 0.17 40.8 1,858 0.9 574 1,314 21,964 26,357 31 0.7 8 15 14 19 3 1.29 1.0 12 1985 5.83 0.20 41.7 2,085 0.7 678 1,553 21,717 26,060 29 0.4 5 14 15 14 3 0.83 0.1 15.0 7.7 1986 5.84 0.18 40.4 1,946 0.5 606 1,388 20,067 24,080 32 0.4 6 14 15 11 3 0.70 < 1.0 15.0 7.2 1987 5.93 0.18 40.1 1,907 0.3 645 1,477 21,909 26,291 31 0.5 5 14 17 12 4 0.68 < 1.0 17.0 8.7 1988 6.05 0.24 40.9 2,098 0.5 630 1,443 20,000 24,000 33 0.5 9 15 27 15 6 0.66 < 1.0 15.0 10.1 1989 6.10 0.20 39.7 2,003 0.6 549 1,257 21,636 25,964 31 0.2 7 14 24 9 6 0.45 1.0 20.0 8.0 1990 6.30 0.19 39.1 3,063 0.7 564 1,291 18,625 22,350 23 0.4 7 14 21 10 5 0.49 1.0 20.0 5.8 1991 6.30 0.22 39.0 1,765 1.6 649 1,487 21,083 25,300 24 0.6 6 14 26 10 6 0.47 < 1.0 10.0 9.7 1992 6.27 0.30 37.9 1,882 3.1 668 1,530 20,667 24,800 23 0.6 5 17 32 11 8 0.44 < 1.0 22.0 9.5 1993 6.13 0.20 35.4 1,583 1.8 598 , 1,368 22,417 26,900 17 0.3 5 17 18 7 4 0.40 < 1.0 8.0 12.9 1994 6.14 0.18 37.4 1,607 1.4 683 1,563 23,083 27,700 14 0.3 7 15 20 9 5 0.46 < 1.0 7.0 7.3 1995 6.11 0.23 35.7 1,464 3.4 698 1,576 19,756 23,667 22 0.8 4 15 21 9 5 0.47 1.0 7.0 4.8 1996 6.15 0.26 36.1 1,445 2.7 644 1,475 15 1.0 1 15 24 17 6 0.64 1.1 7.0 4.1 1997 6.15 0.16 39.8 1,472 2.9 639 1,464 18 1.0 1 13 15 8 4 0.52 1.0 5.0 3.5 1998 6.21 0.13 39.9 1,511 32.4 900 2,060 32 1.2 33 11 12 9 3 0.60 < 1.0 5.1 1999 6.12 0.15 43.6 1,898 12.1 885' 2,027 65 1.8 2 17 16 10 3 0.63 < 1.0 8.6 2000 6.29 0.15 39.3 1,683 2.8 850 1,945 20,225 24,300 45 < 1.0 51 16 12 13 3 0.92 < 1.0 5.8 2001 6.06 0.28 42.8 1,788 5.2 815 1,867 20,150 24,200 47 2.3 2 18 29 11 6 0.51 < 1.0 9.0 11.1 2002 6.14 0.37 38.9 1,705 9.9 790 1,810 20,325 24,400 40 1.3 2 17 35 14 8 0.64 < 1.0 8.0 10.7 2003 6.46 0.21 40.0 1,578 3.2 845 1,938 20,950 25,150 41 1.5 3 16 22 6 5 0.32 1.0 4.6 9.0 2004 6.33 0.20 41.1 1,725 2.9 978 2,240 21,150 25,375 48 1.3 4 18 19 7 4 0.36 < 1.0 6.3 10.9 2005 6.25 0.16 43.4 1,800 2.8 1,023 2,343 19,900 23,875 46 1.3 3 18 17 6 3 0.36 < 1.0 3.4 8.4 2006 6.10 0.15 42.7 1,598 2.6 910 2,085 17,084 20,500 49 0.8 2 14 14 6 3 0.37 < 1.0 3.3 8.5 2007 5.96 0.19 44.1 2,058 1.2 699 1,600 8,629 10,350 34 0.2 17 22 9 4 0.47 < 1.0 7.9 6.0 2008 6.03 0.22 41.8 1,715 4.7 622 1,425 4,547 5,425 25 0.1 17 28 9 5 0.43 < 1.0 6.3 6.1 2009 5.78 0.21 42.7 1,938 4.1 674 1,545 5,502 6,625 15 0.2 7 17 18 11 4 0.62 < 1.0 7.9 5.6 2010 6.09 0.24 41.9 2,285 3.6 632 1,448 5,120 6,150 29 0.1 9 17 27 8 6 0.36 < 1.0 6.2 5.4 2011 5.82 0.25 39.8 1,705 7.5 548 1,255 6,217 7,450 31 0.1 38 16 23 8 5 0.39 < 1.0 5.2 4.5 2012 5.87 0.25 40.4 1,727 7.6 505 1,155 4,920 5,900 25 0.1 43 15 24 9 5 0.46 < 1.0 7.1 7.6 2013 5.76 0.27 41.7 1,833 4.6 465 1,063 6,225 7,450 25 0.3 19 14 30 9 5 0.43 < 1.0 13.5 6.3 2014 5.75 0.26 43.7 2,183 6.7 574 1,315 4,683 5,600 26 0.2 14 16 27 8 5 0.38 < 1.0 4.8 7.2 2015 5.55 0.45 41.7 2,758 13.3 556 1,273 4,305 5,150 29 0.2 20 17 42 12 24 0.37 < 1.0 3.8 10.4 2016 5.76 0.26 42.1 2,613 6.8 473 1,083 6,355 7,625 24 0.2 13 16 25 7 6 0.39 < 1.0 5.0 13.9 Maximum 6.46 0.67 44.1 3,063 32.4 1,023 2,343 23,083 27,700 305 2.3 51 18 42 19 24 1.29 1.1 22.0 13.9 Minimum 5.55 0.13 35.4 1,384 0.3 301 689 4,305 5,150 14 0.1 1 11 12 6 3 0.32 0.1 3.3 3.5 Average 6.02 0.23 40.4 1,868 4.5 667 1,526 15,851 19,019 38 0.7 11 15 22 10 5 0.53 1.0 9.8 7.8 #Tests 36 36 36 36 36 36 36 32 32 36 36 34 36 34 34 33 33 33 31 32 Site: S7a Ranch : Bruns pH Salinity 11 10 10 9 = 9 8 7 _ 8 - • 6 N o 7 - E 5 E 4 5 3 2 4 - 1 3 E N E d N E i O O an d VA ET;2 0 0'O N O N 8 A m? O N t7 d h l0 0 N d N t0 �NtId N O O�N n'l d N b p O N t7 d N 10 Oi Oi Oi Oi Ol Oi Ol O�Oi Oi Ol O Oi O OI 01 01 01 O O 8 0 0 0 0 r 8 t0 of OOiOi O Of 01 OiOOi IOi o O S N O S O O O O O N N N N N N N N N N N N N N N N N � �������� r r '-� � N N N N N N N N N N N N N N t pH Linear(pH) —+—Salinity Linear(Salinity) Cation Exchange Capacity Sodium Adsorption Ratio 50 20 40 15 rn 30 o - en r4 10 E 20 •- _ ''4 T 5 10 0 0 ErnEd0mhlmagNmdmmmOONNNNNNNOO 0o 0N i N -d I -w � o$N$oN I N m ; N N d N N --t-CEC Linear(CEC) –+–SAR Linear(SAR) ALPINE COUNTY MONITORING WELLS Site: ACMW-01AW SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/14/2016 6.84 5486.3 10.1 6.54 36.4 0.023 < 0.050 < 0.020 < 0.010 0.704 0.624 04/06/2016 4.68 5488.5 11.6 6.40 34.3 0.023 < 0.050 < 0.020 < 0.010 0.908 0.746 07/12/2016 5.93 5487.2 11.4 6.59 33.2 0.028 < 0.050 < 0.020 < 0.010 0.326 0.298 10/11/2016 7.70 5485.4 12.6 6.73 37.8 0.053 < 0.070 < 0.020 < 0.010 0.230 0.284 Maximum 7.70 5488.5 12.6 6.73 37.8 0.053 < 0.070 < 0.020 < 0.010 0.908 0.746 Minimum 4.68 5485.4 10.1 6.40 33.2 0.023 < 0.050 < 0.020 < 0.010 0.230 0.284 Average 6.29 5486.8 11.4 6.57 35.4 0.032 < 0.055 < 0.020 < 0.010 0.542 0.488 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-01AW SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/14/2016 131 229.0 1.57 5.55 < 1 < 1 04/06/2016 81 83.2 2.08 5.69 < 1 < 1 07/12/2016 81 74.1 1.38 5.68 1 < 1 10/11/2016 85 85.1 1.48 4.27 35.4 < 1 Maximum 131 229 2.08 5.69 35.4 < 1 Minimum 81 74.1 1.38 4.27 < 1 < 1 Average 95 117.9 1.63 5.30 9.6 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-01AW SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 1989 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 89 9.0 5480.7 10.4 6.86 41.0 26 46.02 0.142 0.107 0.027 < 0.010 0.306 0.387 90 • 7.7 5481.1 11.1 6.91 61.0 54 36.80 0.090 0.084 0.021 < 0.010 0.278 0.373 91 7.1 5481.6 11.1 7.26 41.0 38 32.73 0.087 0.106 0.040 0.012 0.233 0.350 92 7.8 5480.9 11.4 6.79 58.0 52 1.52 0.035 0.106 0.026 0.010 0.211 0.327 93 7.2 5481.5 11.3 6.85 52.0 51 16.25 0.036 0.116 0.027 0.011 0.588 0.715 94 7.9 5481.9 10.2 6.82 46.0 39 3.77 0.028 0.088 0.029 0.010 0.229 0.326 95 6.5 5482.2 11.6 6.55 64.0 63 1.60 0.023 0.103 0.031 0.011 1.054 1.168 96 6.3 5482.4 12.2 6.50 64.0 58 16.87 0.074 0.097 0.022 0.010 0.542 0.648 97 7.4 5481.3 11.9 6.49 55.0 49 2.93 0.033 0.104 0.037 0.011 1.013 1.129 98 6.3 5482.4 11.3 6.27 44.0 48 1.07 0.028 0.132 0.021 0.012 0.312 0.457 99 6.3 5482.4 11.2 6.26 44.0 44 2.23 0.026 0.108 < 0.020 < 0.010 0.204 0.322 00 6.2 5482.5 10.8 6.71 43.0 52 1.26 0.041 0.160 0.020 < 0.010 0.604 0.701 01 6.8 5481.9 10.7 6.82 35.0 45 9.89 0.062 0.142 0.036 < 0.020 0.380 0.578 02 6.3 5482.4 10.5 6.50 34.0 54 14.63 0.038 0.126 < 0.017 0.611 1.011 03 6.9 5481.8 11.2 6.93 39.1 1.85 0.024 0.112 < 0.015 0.870 1.263 04 6.0 5482.7 10.1 6.77 42.7 63 3.40 0.025 0.110 0.020 < 0.015 1.215 1.633 05 6.1 5482.6 9.7 6.75 41.8 48 10.25 0.033 0.129 < 0.009 0.516 0.629 06 5.0 5483.7 10.8 6.74 38.2 33 15.77 0.045 0.440 < 0.010 0.132 0.309 , 07 6.1 5482.6 11.0 6.48 41.8 37 11.45 0.032 0.055 < 0.011 0.362 0.400 08 5.6 5483.1 10.5 6.64 42.4 35 26.04 0.050 0.081 < 0.013 1.282 1.329 09 5.7 5483.0 9.4 6.63 36.7 37 23.53 0.068 0.081 < 0.010 0.683 0.813 10 5.3 5483.4 9.3 6.33 44.0 63 10.75 0.030 0.065 < 0.020 1.989 2.041 11 5.3 5483.4 10.1 6.79 40.5 33 19.65 0.041 < 0.055 < 0.012 0.491 0.484 12 6.7 5486.5 10.6 6.75 31.7 0.049 0.072 0.022 < 0.010 0.177 0.275 13 6.3 5486.9 10.7 6.75 46.0 0.042 0.102 0.028 < 0.010 0.108 0.176 14 7.5 5485.6 10.7 6.73 38.1 0.153 0.082 0.021 < 0.011 0.143 0.165 15 11.2 5482.0 11.0 6.67 33.8 0.022 0.054 0.020 < 0.010 0.121 0.152 16 6.3 5486.8 11.4 6.57 35.4 0.032 < 0.055 < 0.020 < 0.010 0.542 0.488 Maximum 11.2 5486.9 12.2 7.26 64.0 63 46.02 0.153 0.440 0.040 < 0.020 1.989 2.041 Minimum 5.0 5480.7 9.3 6.26 31.7 26 1.07 0.022 0.054 0.020 < 0.009 0.108 0.152 Average 6.7 5482.8 10.8 6.68 44.1 46 13.49 0.050 0.110 0.026 < 0.012 0.543 0.666 #Tests 28 28 28 28 28 22 23 28 28 19 28 28 28 • Site: ACMW-01AW SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 89 78 97 1.6 5 6.35 3 < 2 90 94 123 1.5 6 5.43 < 5 2 < 2 91 84 88 1.5 < 5 6.95 < 5 3 < 2 92 87 122 2.0 < 5 3.33 < 5 2 < 2 93 92 120 2.8 5 5.52 < 5 2 2 < 2 94 77 106 3.0 < 5 4.42 10 2 < 2 95 106 162 7.6 5 3.02 5 7 2 96 109 147 5.0 2 4.39 5 12.3 1 97 97 132 4.3 2 3.28 5 2.3 1 98 77 101 2.6 < 5 1.84 < 5 3.4 < 1.1 99 77 104 1.7 < 5 3.03 5 2.3 1.1 00 79 101 3.3 < 5 1.86 < 5 1.2 < 1.1 01 76 83 2.9 8 2.28 30 1.7 < 1.1 02 78 89 4.3 < 5 2.58 < 5 1.3 < 1.1 03 84 104 4.6 5 2.62 5 1.1 1.1 04 89 119 7.1 6 2.77 10 1.3 < 1.1 05 82 108 4.6 < 5 3.64 18 1.2 < 1.1 06 84 92 1.8 < 5 3.83 1.3 < 1.1 07 79 95 1.7 7 2.33 < 1.1 < 1.1 08 91 107 3.7 < 5 2.80 60 < 1.3 < 1.1 09 86 94 3.1 6 2.74 r 1.5 < 1.1 10 96 132 7.3 < 5 2.61 1.1 < 1.1 11 90 99 2.5 5 4.01 1.2 < 1.1 12 81 70 1.1 2.31 1.7 < 1.1 13 83 96 1.3 3.24 1.4 < 1.1 14 75 83 1.4 3.78 , 1.9 < 1.1 15 70 79 1.4 4.73 2.4 < 1.0 16 95 118 . 1.6 5.30 9.6 < 1.0 Maximum 109 162 7.6 8 6.95 60 12.3 2.0 < 2 Minimum 70 70 1.1 2 1.84 < 5 1.1 1.0 < 2 Average 86 106 3.1 5 3.61 11 2.6 1.3 < 2 #Tests 28 28 28 23 28 17 28 28 1 Site ACMW-01AW Nitrate-Nitrogen and Water Level Chlorides 5 5495 50 4 5490 - 40 3 5485 d J _ a 30 J • 2 5480 16 20 1 5475 10 p 5470 p 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —•—•Nitrate t Water Level Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 400 0.40 300 0.30 _ J J O) - E - E - 200 0.20 100o ` Y�. 0.10 0 0.00 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —o—TDS Linear(TDS) Total P Linear(Total P) Annual Metals Report ACMW-01 AW Main Dam Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-01AW 10/31/1988 12 3.6 1.1 6.8 2400 <4 40 <10 <0.1 <10 <20 11/28/1989 9.4 4.1 1 6.1 1300 <10 110 <10 <1 <10 <50 08/01/1990 12 3.7 1.5 7.1 1100 <4 84 <10 <0.1 <10 <20 08/21/1991 9 3.1 1 5.2 600 <4 61 <10 <0.1 <10 <20 07/21/1992 14 4 1 7.2 76 <4 55 <10 <0.1 <10 <20 07/12/1994 11 3.2 0.9 5.4 660 <2 45 <10 0.1 <10 <20 08/15/1995 15 4.4 1.1 6.8 310 <1 65 <10 <0.1 <10 <10 06/19/1996 18 5.3 1.2 6.9 120 <1 76 <10 <0.1 <10 <10 06/16/1997 14 4.3 1.4 7.2 250 <2 56 <10 <0.5 <10 <25 07/21/1998 12.3 3.36 0.918 5.15 <25 <2 <100 <10 <0.5 <10 <20 06/20/1999 5.71 1.76 0.548 2.99 530 <2 <100 <1 <10 0.28 <10 <20 07/18/2000 7.4 2.84 0.928 5.38 <2 <100 <10 <20 06/19/2001 6.65 2.01 0.76 4.25 <2 <100 <10 <20 06/18/2002 6.61 2.13 0.878 4.32 400 <2 35 <0.2 <10 <0.2 <1 <20 06/17/2003 7.18 2.42 0.938 4.84 300 <2 35.7 <0.2 <10 <0.2 <1 <20 05/18/2004 7.78 2.46 0.866 4.83 440 <2 <100 <0.2 <10 <0.2 <1 <20 06/14/2005 8.73 2.72 0.793 4.64 <2 <100 <10 <20 06/01/2006 7.84 2.76 1.11 4.91 1200 3.42 <2 <10 <2 <2 <20 06/19/2007 8.9 2.53 0.894 5.11 420 <2 37 <1 <10 <0.5 <1 <20 06/04/2008 9.84 3.3 1.24 6.13 4300 2.92 68 <1 <10 <0.5 <1 <20 06/17/2009 8.15 2.46 0.932 5.68 830 <2 41 <1 <10 <0.5 <1 <20 06/09/2010 14 4.2 1.1 6.8 88 <1 63 <1 <0.5 <0.5 <1 <2 06/14/2011 8.41 2.86 1.01 5.58 2430 <1 47.9 <1 <0.5 <0.5 <1 <2 06/14/2012 854 6.02 87.5 <1 <0.5 8.42 06/18/2013 9.77 2.70 1.05 5.53 06/17/2014 7.79 2.48 <1 5.05 151 1.46 36.5 <1 <0.5 <0.5 <1 <2 07/15/2015 8.13 2.51 <1 4.56 218 <1 40.1 <1 <0.5 <0.5 <1 <10 07/12/2016 7.63 2.47 1.03 4.26 1960 <1 46.9 <1 <0.5 <0.5 1.03 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-01AW 10/31/1988 820 <0.2 90 <5 <50 <1 <1 <10 11/28/1989 1700 <1 120 <10 <5 <50 08/01/1990 860 <0.2 100 1 <1 <10 08/21/1991 550 <0.2 64 2 <1 <10 07/21/1992 72 <0.2 <10 <1 <1 <10 07/12/1994 410 <0.2 7.1 <1 <1 7.2 08/15/1995 160 <0.2 <5 <1 <1 <5 06/19/1996 <30 <0.2 <5 <1 <1 <5 06/16/1997 200 <0.5 <10 <5 <5 <50 07/21/1998 83.4 <0.5 <20 <2.5 <5 <25 06/20/1999 115 <0.2 <20 <5 <2.5 <1 <3 <1 <10 07/18/2000 367 <20 <2.5 <10 06/19/2001 548 <20 <2.5 <10 06/18/2002 372 0.02 <20 <1 <2.5 <2 <1 <0.2 <10 06/17/2003 242 <0.01 <20 <1 <2.5 <2 <1 <0.2 <10 05/18/2004 339 0.01 <20 <1 <2.5 <2 <1 <0.2 <10 06/14/2005 507 <20 <2.5 <10 06/01/2006 1890 <0.2 23.8 <2 2 <2.5 <10 <2 <1 2 169 06/19/2007 25.3 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/04/2008 141 <0.2 26.8 <2 <5 <2.5 <5 <1 <1 <3 <10 06/17/2009 416 <0.2 33.9 <2 <5 <2.5 <5 <1 <1 <3 11.3 06/09/2010 56 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2011 1100 <0.2 8.11 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2012 <0.2 5.47 13.4 <5 <1 <1 13.3 06/17/2014 405 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/15/2015 179 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/12/2016 1610 <0.2 16.7 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-01BE SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/14/2016 7.74 5495.8 8.1 6.31 84.9 0.025 < 0.050 < 0.020 < 0.010 0.207 0.147 04/06/2016 5.90 5497.7 7.5 6.31 74.7 0.034 < 0.050 < 0.020 < 0.010 0.263 0.214 07/12/2016 8.08 5495.5 9.1 6.29 72.2 0.172 < 0.050 < 0.020 < 0.010 0.202 0.189 10/11/2016 13.48 5490.1 9.1 6.43 73.0 0.071 < 0.070 < 0.020 < 0.010 0.181 0.175 Maximum 13.48 5497.7 9.1 6.43 84.9 0.172 < 0.070 < 0.020 < 0.010 0.263 0.214 Minimum 5.90 5490.1 7.5 6.29 72.2 0.025 < 0.050 < 0.020 < 0.010 0.181 0.147 Average 8.80 5494.8 8.5 6.34 76.2 0.076 < 0.055 < 0.020 < 0.010 0.213 0.181 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-01BE SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/14/2016 115 177 1.50 3.08 < 1 < 1 04/06/2016 120 150 1.68 2.88 < 1 < 1 07/12/2016 109 145 1.63 3.33 < 1 < 1 10/11/2016 139 150 1.69 2.04 < 1 < 1 Maximum 139 177 1.69 3.33 < 1 < 1 Minimum 109 145 1.50 2.04 < .1 < 1 Average 121 156 1.63 2.83 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-01BE SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 1989 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 89 10.5 5491.8 9.8 7.05 72.0 50 8.22 0.040 0.109 0.035 < 0.012 0.371 0.456 90 10.1 5491.0 9.1 7.02 51.0 40 4.37 0.025 0.085 0.025 < 0.010 0.157 0.252 91 18.2 5482.9 9.7 7.23 57.0 46 18.50 0.063 0.093 0.038 0.011 0.185 0.288 82 12.9 5488.2 10.4 6.91. 50.0 39 24.00 0.053 0.113 0.028 0.010 0.163 0.287 83 10.8 5490.3 10.2 6.87 63.0 67 7.75 0.031 0.069 0.021 0.010 0.728 0.807 94 11.1 5490.0 10.4 6.62 60.0 56 2.07 0.030 0.083 0.025 0.010 0.318 0.410 95 8.1 5493.0 9.8 6.67 69.0 66 0.73 0.025 0.197 0.047 0.011 0.405 0.613 96 7.9 5493.2 11.2 6.44 67.0 66 1.74 0.018 0.099 0.020 0.011 0.438 0.548 97 11.1 5490.1 11.0 6.35 68.0 68 1.50 0.019 0.088 0.021 0.018 0.821 0.928 98 8.4 5492.7 10.1 6.24 52.0 47 3.10 0.022 0.116 < 0.020 < 0.010 0.541 0.668 99 9.0 5492.1 10.1 6.29 56.0 55 0.76 0.021 0.111 < 0.020 < 0.010 0.449 0.570 00 9.7 5491.4 10.6 6.81 47.0 39 5.80 0.029 0.100 0.022 < 0.010 0.169 0.233 01 11.6 5489.5 10.2 6.80 43.0 31 3.91 0.031 0.109 0.020 < 0.010 0.200 0.319 02 9.9 5491.2 8.6 6.52 37.0 30 10.11 0.029 0.126 < 0.010 0.142 0.284 03 11.5 5489.6 9.8 6.84 39.6 7.77 0.026 0.099 0.012 0.587 0.687 04 10.0 5491.1 9.8 6.57 43.6 25 4.25 0.039 0.119 < 0.020 < 0.010 0.128 0.263 05 9.5 5491.6 11.1 6.47 42.4 35 4.35 0.027 0.089 < 0.010 0.204 0.222 06 5.8 5495.3 11.3 6.41 44.9 38 12.40 0.027 0.203 < 0.010 0.425 0.580 07 10.5 5490.6 11.1 6.31 38.7 30 13.80 0.037 0.055 < 0.010 0.125 0.163 08 11.6 5489.5 9.4 6.53 33.2 33 9.35 0.039 0.073 < 0.010 0.193 0.233 09 12.3 5488.8 9.3 6.50 40.2 34 6.07 0.144 0.084 < 0.010 0.198 0.250 10 10.5 5490.6 9.7 6.47 46.7 38 7.95 0.031 < 0.050 < 0.010 0.242 0.279 11 8.0 5493.1 10.3 6.17 56.7 59 7.10 0.039 < 0.060 < 0.010 0.886 0.849 12 12.7 5490.9 8.5 6.27 53.9 0.027 < 0.046 0.023 < 0.010 0.279 0.373 13 10.8 5492.7 7.3 6.29 47.6 0.067 < 0.080 0.025 < 0.009 0.177 0.228 14 12.4 5491.2 8.2 6.50 50.0 0.043 0.052 0.021 < 0.011 0.151 0.139 15 13.9 5489.7 10.5 6.81 61.1 0.026 < 0.050 0.020 < 0.010 0.143 0.159 16 8.8 5494.8 8.5 6.34 76.2 0.076 < 0.055 < 0.020 < 0.010 0.213 0.181 Maximum 18.2 5495.3 11.3 7.23 76.2 68 24.00 0.144 0.203 0.047 0.018 0.886 0.928 Minimum 5.8 5482.9 7.3 6.17 33.2 25 0.73 0.018 0.046 < 0.020 < 0.009 0.125 0.139 Average 10.6 5491.0 9.9 6.58 52.4 45 7.20 0.039 0.093 0.025 0.011 0.323 0.402 #Tests 28 28 28 28 28 22 23 28 28 19 28 28 28 Site: ACMW-01 BE SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 89 101 168 3.1 5 4.63 < 2 < 2 90 75 112 1.5 6 3.64 < 5 < 2 < 2 91 88 118 1.7 < 5 6.01 < 5 3 < 2 82 80 105 1.4 6 5.17 < 5 2 < 2 83 103 140 1.7 13 4.49 < 5 < 2 2 < 2 94 85 129 1.7 < 5 3.54 < 4 < 2 < 2 95 94 144 1.9 5 2.90 5 2 2 96 99 140 1.8 2 2.19 5 1 1 97 102 145 2.1 4 2.89 5 1 1 98 80 111 1.1 < 5 2.05 < 5 < 1.0 < 1.1 99 86 121 1.3 < 5 2.63 < 5 < 1.2 < 1.1 00 77 97 0.9 < 5 1.49 < 5 < 1.1 < 1.1 01 69 85 1.4 8 1.27 13 < 1.1 < 1.1 ' 02 66 81 2.5 < 5 1.29 10 < 1.1 < 1.1 03 77 90 1.9 5 1.62 8 1.1 1.1 04 79 91 1.7 < 5 1.76 8 < 1.1 < 1.1 05 75 92 1.5 < 5 1.56 5 < 1.1 < 1.1 06 83 97 1.3 < 5 1.33 < 1.1 < 1.1 07 74 83 1.2 5 1.39 < 1.1 < 1.1 08 71 74 1.8 < 5 1.61 20 < 1.4 < 1.1 09 83 89 1.5 5 1.13 < 1.1 < 1.1 10 79 103 1.3 < 5 1.22 < 1.1 < 1.1 11 95 125 1.9 < 7 1.33 < 1.1 < 1.1 12 97 112 1.4 1.95 < 1.1 < 1.1 13 86 100 1.4 1.98 < 1.1 < 1.1 14 . 89 101 1.4 2.31 < 1.1 < 1.1 15 98 128 1.4 3.03 < 1.0 < 1.0 16 121 156 1.6 2.83 < 1.0 < 1.0 Maximum 121 168 3.1 13 6.01 20 3.0 2.0 < 2 Minimum 66 74 0.9 2 1.13 < 4 < 1.0 < 2 Average 86 112 1.6 6 2.47 • 7 1.4 1.3 < 2 #Tests 28 28 28 23 28 17 28 28 1 Site ACMW-01 BE Nitrate-Nitrogenand Water Level Chlorides 5 5510 50 4 5500 40 3lik1 t 5490 30 \Yj u, lin _ 2 5480 x 20 ( - 1 5470 10 0 5460 p al SCO X10 ,N. ,CD SCO ,10 .r, .0) 0) gym, ,10 ,N. ,0) .00 ,10 .N. ,0) CO Orn CO CO 0 rn O 0 0 0 0 CO m CO m m 03 O 0 0 0 0 r A- -. ...Nitrate —*--Water Level —.—Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.20 400 i - 0.15 300 _ ...I J - 3 - 0). 0. 10 - E -200 - 100 ./' 0.05AL A.„or o 0.00 rn �a, ,In ,I- gym, �a, SIC ,n, .CI ��, ,I, m• .m. ,U, �^, gym, ,a, ,U ,N. ,C) ��, ,Lb m rn CO m m m 0 0 0 0 0 CO rn CO rn rn al 0 0 0 0 0 A- A- --*---TDS —Linear(TDS) —*—Total P —Linear(Total P) Annual Metals Report ACMW-01 BE Secondary Dam Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-01BE 10/31/1988 10 4.6 1.4 7.1 700 <4 30 <10 <0.1 <10 <20 11/28/1989 12.5 5 1 13.8 110 <10 <100 <10 <1 <10 <50 08/01/1990 8.8 3.3 0.6 5.3 90 <4 34 <10 <0.1 <10 <20 08/21/1991 11 5 0.9 5.4 210 <4 49 <10 <0.1 <10 <20 07/21/1992 10 4.1 0.8 5.4 200 <4 45 <10 <0.1 <10 <20 07/19/1994 11 4.4 0.8 5.8 500 <2 54 <10 0.1 <10 <20 08/15/1995 13 5.3 0.8 6.5 64 <1 59 <10 <0.1 <10 <10 06/19/1996 18 7.5 1 7.6 140 <1 88 <10 <0.1 <10 <10 06/16/1997 17 7.4 1.2 8.9 170 <2 97 <10 <0.5 <10 <25 07/21/1998 7.85 3.25 0.687 5.52 58 <2 <100 <10 <0.5 <10 <20 06/20/1999 12.3 5.9 1.04 8.05 160 <2 <100 <1 <10 <0.1 <10 <20 07/18/2000 5.94 3.05 0.694 10.3 <2 <100 <10 <20 06/19/2001 7.08 2.86 0.6 5.82 <2 <100 <10 <20 06/18/2002 6.6 2.54 •0.589 5.7 110 <2 37 <0.2 <10 <0.2 <1 <20 06/17/2003 5.86 2.95 1.02 5.99 300 <2 39.9 <0.2 <10 <0.2 <1 <20 05/18/2004 8.1 3.49 0.635 6.44 210 <2 <100 <0.2 <10 <0.2 <1 <20 06/14/2005 10.2 4.2 0.562 7 <2 <100 <10 <20 06/01/2006 9.89 4.08 0.791 7.11 120 <2 <2 <10 <2 <2 <20 06/19/2007 7.34 2.93 0.659 5.96 88 2.12 37 <1 <10 <0.5 <1 <20 06/04/2008 5.09 2.2 0.557 5.11 1200 <2 35 <1 <10 <0.5 <1 <20 06/17/2009 7.54 3.35 1.04 6.63 1500 2.22 47 <1 <10 <0.5 <1 <20 06/09/2010 9.2 3.9 <1 6.9 110 <1 44 <1 <0.5 <0.5 <1 2.3 06/14/2011 14.1 6.16 1 9.04 42.6 <1 60.4 <1 <0.5 <0.5 <1 <2 06/14/2012 24.9 <1 56.2 <1 <0.5 <1 06/18/2013 7.35 2.91 0.562 5.69 06/17/2014 9.60 4.35 <1 6.89 457 1.56 51.4 <1 <0.5 <0.5 <1 <2 07/15/2015 11.0 5.36 1.37 7.30 3600 <1 85.3 <1 <0.5 <0.5 3.83 <10 07/12/2016 14.8 6.30 <1 8.32 867 <1 76.8 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-01BE 10/31/1988 690 <0.2 420 <5 <50 <1 <1 <10 11/28/1989 150 <1 120 <10 <5 <50 08/01/1990 37 <0.2 25 <1 <1 <10 08/21/1991 180 <0.2 54 <1 <1 <10 07/21/1992 230 <0.2 49 <1 <1 <10 07/19/1994 330 <0.2 53 <1 <1 6.1 08/15/1995 ,180 <0.2 80 <1 <1 9.5 06/19/1996 220 <0.2 77 <1 <1 <5 06/16/1997 480 <0.5 <10 <5 <5 <50 07/21/1998 333 <0.5 37.2 <2.5 <5 <25 06/20/1999 171 <0.2 38.2 <5 <2.5 <1 <3 <1 <10 07/18/2000 348 <20 <2.5 <10 06/19/2001 <100 <20 <2.5 <10 06/18/2002 135 0.02 <20 <1 <2.5 <2 <1 <0.2 <10 06/17/2003 330 <0.01 <20 <1 <2.5 <2 <1 <0.2 <10 05/18/2004 126 0.01 <20 <1 <2.5 <2 <1 <0.2 <10 06/14/2005 121 <20 <2.5 <10 06/01/2006 328 <0.2 <20 <2 <2 <2.5 <10 <2 <1 <2 <10 06/19/2007 601 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/04/2008 626 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/17/2009 2820 <0.2 179 <2 <5 <2.5 <5 <1 <1 <3 17.5 06/09/2010 220 <0.2 7 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2011 545 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2012 <0.2 <2 <5 <5 <1 <1 <3 06/17/2014 579 <0.2 23.7 <2 <5 <0.5 <5 <1 <1 <3 <20 07/15/2015 4660 <0.2 106 2.24 <5 1.71 <5 <1 <1 8.92- - <20 07/12/2016 885 <0.2 15.3 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-02N SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L ' 01/14/2016 12.83 5456.9 12.3 6.49 66.9 0.023 < 0.050 < 0.020 < 0.010 0.189 0.187 04/06/2016 9.57 5460.1 13.0 6.81 87.9 0.029 < 0.050 < 0.020 < 0.010 0.203 0.190 07/12/2016 6.86 5462.8 13.9 6.45 46.5 0.021 0.200 < 0.020 < 0.010 3.610 3.810 10/11/2016 7.99 5461.7 15.0 6.62 49.0 0.029 < 0.070 < 0.020 < 0.030 3.750 3.650 Maximum 12.83 5462.8 15.0 6.81 87.9 0.029 0.200 < 0.020 < 0.030 3.750 3.810 Minimum 6.86 5456.9 12.3 6.45 46.5 0.021 < 0.050 < 0.020 < 0.010 0.189 0.187 Average 9.31 5460.4 13.6 6.59 62.6 0.026 0.093 < 0.020 < 0.015 1.938 1.959 #Tests 4 ' 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-02N SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/14/2016 86 150 2.50 2.67 < 1 < 1 04/06/2016 127 189 2.66 2.39 < 1 < 1 07/12/2016 91 125 5.29 7.23 < 1 < 1 10/11/2016 105 142 1.77 2.72 < 1 < 1 Maximum 127 189 5.29 7.23 < 1 < 1 Minimum 86 125 1.77 2.39 < 1 < 1 Average 102 152 3.06 3.75 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-02N SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 1989 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 89 7.1 5458.7 12.4 8.47 89.0 58 7.29 0.039 0.086 0.031 < 0.010 0.108 0.174 90 6.8 5458.6 12.1 8.99 106.0 60 17.98 0.035 0.097 0.021 < 0.010 0.082 0.189 91 7.0 5458.4 11.9 7.96 79.0 56 2.48 0.023 0.098 0.041 0.015 0.093 0.207 92 7.0 5458.4 11.6 7.40 71.0 48 0.57 0.020 0.099 0.037 0.012 0.091 0.202 93 6.3 5462.3 11.9 7.28 68.0 48 1.25 0.017 0.096 0.024 0.013 0.085 0.195 94 7.1 5458.3 11.7 6.92 70.0 53 1.01 0.022' 0.092 0.025 0.013 0.071 0.174 95 6.2 5459.2 12.2 6.84 63.0 45 0.68 0.020 0.106 0.023 0.011 0.086 0.203 96 5.8 5459.6 12.8 6.64 64.0 48 1.50 0.016 0.102 0.028 0.011 0.093 0.206 97 6.8 5458.6 12.7 6.55 65.0 54 0.94 0.017 0.094 0.020 0.011 0.091 0.198 98 6.0 5459.4 12.0 6.48 63.0 48 1.75 0.020 0.114 < 0.020 < 0.010 0.113 0.239 99 6.2 . 5459.2 11.9 6.49 59.0 47 0.40 0.021 0.117 < 0.020 < 0.010 ' 0.135 0.262 00 6.2 5459.2 12.3 6.71 59.0 45 0.71 0.017 0.122 0.025 < 0.010 0.091 0.167 01 7.0 5458.4 12.4 6.70 60.0 45 1.12 0.017 0.113 < 0.020 < 0.010 0.059 0.184 02 6.5 5458.9 11.8 6.67 58.0 42 1.31 0.016 0.116 < 0.010 0.084 0.209 03 6.8 5458.6 12.8 6.77 53.7 1.60 0.015 0.094 < 0.010 0.104 0.205 04 6.6 5458.8 11.4 6.86 54.6 29 0.81 0.018 0.128 < 0.020 < 0.010 0.057 0.195 05 7.0 5458.4 11.0 6.63 51.7 41 0.39 0.015 0.097 < 0.010 0.149 0.278 06 6.5 5458.9 12.0 6.67 53.5 41 0.99 0.017 0.240 < 0.010 0.135 0.385 07 7.5 5457.9 12.5 6.50 56.5 43 1.09 0.017 0.050 < 0.010 0.093 0.128 08 7.7 5457.7 12.2 6.60 56.0 39 1.16 0.024 0.060 < 0.018 0.150 0.193 09 8.0 5457.4 11.9 6.41 55.8 45 0.71 0.016 < 0.050 0.011 0.198 0.233 10 7.5 5457.9 11.6 6.51 54.0 44 0.97 0.022 0.056 < 0.010 0.194 0.232 11 8.6 5456.8 12.3 6.51 57.1 45 0.81 0.021 0.058 < 0.011 0.142 0.143 12 9.7 5460.0 12.2 6.64 62.9 0.026 < 0.047 0.023 < 0.010 0.148 0.202 13 10.4 5459.3 12.3 6.63 65.5 0.042 0.075 0.028 < 0.009 0.119 0.173 14 9.9 5459.8 12.6 6.61 60.2 0.024 0.055 0.026 < 0.011 0.235 0.246 15 11.3 5458.4 13.4 6.58 59.6 0.021 < 0.050 < 0.020 < 0.010 0.391 0.396 16 9.3 5460.4 13.6 6.59 62.6 0.026 0.093 < 0.020 < 0.015 1.938 1.959 Maximum 11.3 5462.3 13.6 8.99 106.0 60 17.98 0.042 0.240 0.041 0.018 1.938 1.959 Minimum 5.8 5456.8 11.0 6.41 51.7 29 0.39 0.015 0.047 < ,0.020 < 0.009 0.057 0.128 Average 7.5 5458.8 12.2 6.88 63.5 47 2.07 0.021 0.093 0.025 0.011 0.190 0.278 #Tests 28 28 28 28 28 22 23 28 28 19 28 28 28 Site: ACMW-02N SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 89 130 231 5.9 .5 9.73 < 2 < 2 90 113 195 4.9 < 5 6.56 5 < 2 < 2 91 113 165 4.8 < 5 5.40 < 5 < 2 < 2 92 99 157 3.5 < 5 5.09 < 5 < 2 < 2 93 100 145 2.4 8 4.94 < 5 3 < 2 < 2 94 100 150 2.9 < 5 4.72 < 4 < 2 < 2 95 90 135 2.3 5 4.29 5 2 2 - 96 95 136 2.5 2 3.11 5 1 1 97 97 147 6.8 2 4.83 5 1 1 98 95 141 3.5 < 5 3.32 < 5 1.4 < 1.1 99 90 134 3.2 < 5 2.77 < 5 3.6 2.4 2.0 00 90 129 2.8 < 5 3.15 < 5 < 1.1 < 1.1 01 87 128 3.0 9 3.01 10 < 1.1 < 1.1 02 85 122 2.6 < 5 2.56 5 < 1.1 < 1.1 03 85 118 3.0 < 5 2.38 < 5 < 1.1 < 1.1 04 82 114 2.7 < 5 2.29 6 < 1.1 < 1.1 05 79 115 2.9 < 5 2.29 < 5 < 1.1 < 1.1 06 85 120 2.8 6 2.30 < 1.1 < 1.1 07 84 124 2.9 < 5 2.24 < 1.1 < 1.1 08 85 119 2.9 < 5 2.25 < 5 < 1.1 < 1.1 09 84 122 2.6 < 5 2.18 < 1.1 < 1.1 10 82 117 2.1 5 2.26 < 1.1 < 1.1 11 88 121 2.2 5 2.36 < 1.1 < 1.1 12 97 133 2.9 2.71 < 1.1 < 1.1 13 99 140 3.1 2.86 < 1.2 < 1.1 14 93 129 2.7 2.75 2.9 < 1.1 15 95 137 2.5 2.81 < 1.0 < 1.0 16 102 152 3.1 3.75 < 1.0 < 1.0 Maximum 130 231 6.8 9 9.73 10 3.6 2.4 2.0 Minimum 79 114 2.1 2 2.18 < 4 1.0 1.0 < 2.0 Average 94 138 3.2 5 3.53 5 1.5 1.4 2.0 #Tests 28 28 28 23 28 17 28 28 2 Site ACMW-02N Nitrate-Nitrogen and Water Level Chlorides 5 5470 50 4 — 5465 40 3 — 5460 a 30 J J 2 J 1 — 5455 E 20 1 0 — • - - '4 �, 5450 10 'Olm N is- CO m to n a, m N m rn CO CO m 0, o 0 0 0 0 L- 1 5445 -- • • • 0 . rn m 0n n rnm mLO CO m 0, 0, m CI) o 0 0 0 0 0 0 0 —.--Nitrate --N—Water Level Linear(Nitrate) —•—Chloride —Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.20 400 0.15 300 J J - rn rn 0.10 E - E 200 100 - ^� • 0.05 • f 0.00 co N n CO 0 0 0 0 m to W m 01 n rn 0 0 N. 0) Co CO COm m CO 0) 0) 0) 0 0 0 0 .- � � 00 01 0) 01 CO m 00 0 0 0 0 — TDS Linear(TDS) —.—Total P Linear(Total P) Annual Metals Report ACMW-02N Access Gate Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-02N 11/02/1988 11 5.1 3.5 28 4200 <4 76 <10 <0.1 <10 <20 11/28/1989 18.1 4.6 1.7 9.2 <100 <10 <100 <10 <1 <10 <50 08/01/1990 28 2.7 3.2 15 180 <4 120 <10 <0.1 <10 <20 08/21/1991 30 4.3 2.8 12 89 <4 140 <10 <0.1 <10 <20 07/21/1992 14 3.1 1.8 14 <50 <4 76 <10 <0.1 <10 <20 07/19/1994 15 3.6 1.3 13 180 <2 61 <10 <0.1 <10 <20 08/15/1995 13 3 1.4 12 <50 <1 55 <10 <0.1 <10 <10 06/19/1996 14 3.5 1.4 12 120 <1 58 <10 <0.1 <10 <10 06/16/1997 15 3.8 1.5 12 100 <2 <50 <10 <0.5 <10 <25 07/21/1998 14.5 3.28 1.21 10.7 119 <2 <100 <10 <0.5 <10 <20 06/20/1999 10.9 3.17 1.33 10.9 96 <2 <100 <1 <10 <0.1 <10 <20 07/18/2000 6.01 1.61 3.07 24.9 <2 <100 <10 <20 06/19/2001 11.6 3.56 1.22 9.99 <2 <100 <10 <20 06/18/2002 11 2.69 1.38 10.2 50 <2 43 <0.2 <10 <0.2 <1 <20 06/17/2003 9.37 3.01 1.23 9.11 100 <2 41.4 <0.2 <10 <0.2 <1 <20 05/18/2004 10.9 2.89 1.05 8.77 30 <2 <100 <0.2 <10 <0.2 <1 <20 06/14/2005 10.1 2.7 0.968 8.18 <2 <100 <10 <20 06/01/2006 9.91 2.85 1.12 8.77 60 <2 <2 <10 <2 <2 <20 06/19/2007 12.4 3.18 1.14 8.38 49 <2 38 <1 <10 <0.5 <1 <20 06/04/2008 12.3 3.13 1.19 8.73 100 <2 48 <1 <10 1.5 6.8 <20 06/17/2009 12.5 3.16 0.991 8.5 58 <2 41 <1 12.3 <0.5 <1 <20 06/09/2010 12 3.3 1.1 7.4 260 <1 39 <1 <0.5 <0.5 <1 400 06/14/2011 12 3.48 1.13 9.17 28.6 <1 37.6 <1 <0.5 <0.5 <1 <2 06/14/2012 <20 <1 49.3 <1 <0.1 <1 06/18/2013 13.7 3.30 1.06 9.66 06/17/2014 13.3 3.54 1.23 8.76 33.5 <1 38.9 <1 <0.5 <0.5 <1 <2 07/15/2015 15.7 3.59 1.03 9.78 87.6 <1 39.9 <1 <0.5 <0.5 <1 <10 07/12/2016 13.0 3.68 1.02 7.91 105 <1 41.0 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-02N 11/02/1988 3800 <0.2 550 7 <50 3 <1 16 11/28/1989 580 <1 530 <10 <5 <50 08/01/1990 280 <0.2 230 <1 <1 <10 08/21/1991 180 <0.2 260 <1 <1 <10 07/21/1992 40 <0.2 120 <1 <1 <10 07/19/1994 140 <0.2 110 <1 <1 <5 08/15/1995 <30 <0.2 15 <1 <1 <5 06/19/1996 <30 <0.2 66 <1 <1 <5 06/16/1997 74 <0.5 72 <5 <5 <50 07/21/1998 56.4 <0.5 65.8 <2.5 <5 <25 06/20/1999 <100 <0.2 59.4 <5 <2.5 <1 <3 <1 <10 07/18/2000 92.8 <20 <2.5 <10 06/19/2001 <100 114 <2.5 <10 06/18/2002 <100 0.02 38.8 <1 <2.5 <2 <1 <0.2 <10 06/17/2003 <100 <0.01 56.1 <1 <2.5 <2 <1 <0.2 <10 05/18/2004 <100 0.02 28.6 <1 <2.5 <2 <1 <0.2 <10 06/14/2005 <100 <20 <2.5 <10 06/01/2006 128 <0.2 62.9 <2 <2 <2.5 <10 <2 <1 <2 <10 06/19/2007 <50 <0.2 34.5 <2 <5 <2.5 <5 <1 <1 <3 <10 06/04/2008 86.5 <0.2 91.2 6.5 <5 <2.5 <5 3.5 1.3 6.6 <10 06/17/2009 <50 <0.2 43 <2 <5 <2.5 <5 <1 <1 <3 <10 06/09/2010 33 <0.2 65 <2 <5 <0.5 <5 <1 <1 <3 28 06/14/2011 <20 <0.2 27.9 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2012 <0.2 <2 <5 <5 <1 <1 <3 06/17/2014 <20 <0.2 8.63 <2 <5 <0.5 <5 <1 <1 <3 <20 07/15/2015 <20 <0.2 17.6 <2 <5 <0.5 <5 <1 <1 <3 <20 07/12/2016 19.8 <0.2 25.0 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. • Site: ACMW-02S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/14/2016 15.22 5456.4 12.2 6.17 47.4 0.018 < 0.050 < 0.020 < 0.040 1.34 1.330 04/06/2016 7.87 5463.7 11.8 6.18 42.4 0.033 < 0.050 < 0.020 < 0.040 3.08 2.460 07/12/2016 • 4.68 5466.9 15.6 6.17 35.6 0.021 0.120 < 0.020 < 0.040 3.32 3.440 10/11/2016 7.88 5463.7 15.9 6.20 40.6 0.026 < 0.070 < 0.020 < 0.030 1.59 1.610 Maximum 15.22 5466.9 15.9 6.20 47.4 0.033 0.120 < 0.020 < 0.040 3.32 3.440 Minimum 4.68 5456.4 11.8 6.17 35.6 0.018 < 0.050 < 0.020 < 0.030 1.34 1.330 Average 8.91 5462.7 13.9 6.18 41.5 0.025 0.073 < 0.020 < 0.038 2.33 2.210 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-02S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/14/2016 46 123 1.90 6.00 < 1 < 1 04/06/2016 66 112 1.86 6.46 224.7 < 1 07/12/2016 83 109 1.59 5.98 8.6 < 1 10/11/2016 85 104 1.45 5.00 6.3 < 1 Maximum 85 123 1.90 6.46 224.7 < 1 Minimum 46 104 1.45 5.00 < 1 < 1 Average 70 112 1.70 5.86 60.2 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-02S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 1989 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 89 7.1 5460.5 11.7 6.70 58.0 38 5.11 0.028 0.088 0.030 < 0.015 0.193 0.267 90 7.0 5460.2 11.8 ' 7.07 55.0 38 2.06 0.021 0.094 0.023 < 0.010 0.155 0.259 91 7.0 5460.2 12.2 7.01 56.0 41 0.57 0.020 0.098 0.036 0.010 0.219 0.328 92 6.9 5460.3 11.6 6.76 49.0 37 0.76 0.022 0.094 ' 0.029 0.010 0.093 0.197 93 6.6 5460.5 11.4 6.86 57.0 42 1.83 0.022 0.098 0.024 0.011 0.079 0.188 94 7.4 5459.8 12.5 6.84 54.0 42 2.92 0.030 0.114 0.027 < 0.010 0.087 0.210 95 6.8 5460.5 12.0 6.57 51.0 36 0.98 0.030 0.118 0.054 0.010 0.101 0.228 96 6.0 5461.2 12.6 6.37 54.0 42 1.35 0.036 0.137 0.029 0.011 0.081 0.229 97 7.4 5459.8 12.5 6.50 50.0 40 1.25 0.018 0.098 0.021 0.011 0.103 0.213 98 6.3 5460.9 12.0 6.28 50.0 36 0.83 0.021 0.128 < 0.021 < 0.010 0.138 0.277 99 6.6 5460.6 12.3 6.34 47.0 35 0.62 0.017 0.141 < 0.020 < 0.010 0.042 0.193 00 6.5 5460.7 12.3 6.62 46.0 41 0.68 0.016 0.118 < 0.024 < 0.010 0.035 0.110 01 7.7 5459.5 12.5 6.57 47.0 38 1.28 0.014 0.111 0.021 < 0.010 0.018 0.145 02 6.6 5460.6 12.4 6.45 48.0 38 0.99 0.014 0.149 < 0.010 0.186 0.370 03 6.9 5460.3 12.3 6.66 43.1 2.35 0.015 0.103 < 0.010 0.077 0.153 04 6.6 5460.6 11.3 6.52 46.9 28 0.61 0.017 0.157 0.020 < 0.010 0.139 0.347 05 7.3 5459.9 10.7 6.44 46.8 38 0.87 0.017 0.104 < 0.018 0.119 0.210 06 6.9 5460.3 12.5 6.34 47.2 36 1.82 0.016 0.309 < 0.010 0.123 0.444 07 8.1 5459.1 12.7 6.22 44.3 36 0.95 0.016 0.055 < 0.010 0.231 0.268 08 8.1 5459.1 11.9 6.34 46.0 39 1.02 0.018 0.058 < 0.010 0.341 0.375 09 8.4 5458.8 11.8 6.16 47.7 41 0.95 0.015 0.110 < 0.010 0.155 0.220 10 7.4 5459.8 11.7 6.33 45.4 37 0.78 0.021 0.078 < 0.010 0.096 0.145 11 9.6 5457.6 12.2 6.48 45.7 38 0.47 0.018 0.056 < 0.010 0.078 0.080 12 11.5 5460.1 12.2 6.54 46.4 0.021 0.059 0.023 < 0.010 0.201 0.263 13 12.4 5459.2 12.4 6.54 50.9 0.032 0.080 0.028 < 0.012 0.752 0.863 14 10.6 5461.0 13.0 6.29 38.9. 0.024 0.058 0.025 < 0.012 1.565 1.185 15 12.4 5459.2 13.8 6.15 42.0 0.019 0.108 < 0.020 < 0.020 3.038 3.093 16 8.9 5462.7 13.9 6.18 41.5 0.025 0.073 < 0.020 < 0.038 2.333 2.210 Maximum 12.4 5462.7 13.9 7.07 58.0 42 5.11 0.036 0.309 0.054 0.038 3.038 3.093 Minimum 6.0 5457.6 10.7 6.15 38.9 28 0.47 0.014 0.055 < 0.020 < 0.010 0.018 0.080 Average 7.9 5460.1 12.2 6.50 48.4 38 1.35 0.021 0.107 0.026 0.012 0.385 0.467 #Tests 28 28 28 28 28 22 23 28 28 19 28 28 28 Site: ACMW-02S SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep . Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 89 85 133 1.8 5 4.78 4 < 2 90 80 123 1.5 5 3.80 5 < 2 < 2 91 84 121 1.8 < 5 5.34 < 5 < 2 < 2 92 77 103 1.6 6 3.70 < 5 < 2 < 2 93 91 118 1.4 < 5 3.58 < 5 6 < 2 < 2 94 83 118 1.4 < 5 3.88 6 2 < 2 95 78 111 1.9 5 3.35 5 2 2 96 80 116 1.7 2 2.08 5 1.5 1.0 97 78 107 1.8 4 2.96 5 3.7 1.0 98 74 108 2.0 < 5 2.71 < 5 5.3 < 1.1 99 70 101 1.5 < 5 2.52 < 5 3.7 < 1.1 00 72 97 1.6 < 5 1.41 < 5 2.5 < 1.1 01 _ 69 97 1.7 7 1.38 8 1.3 < 1.1 02 75 103 2.5 < 5 1.51 5 4.0 1.2 03 70 96 2.3 < 5 1.49 < 5 1.4 < 1.1 04 76 101 2.7 < 5 1.41 7 3.1 < 1.1 05 73 101 2.4 < 5 1.85 5 < 1.1 < 1.1 06 77 105 2.2 < 5 1.38 < 1.2 < 1.1 07 73 102 2.6 6 1.75 2.9 1.2 08 75 101 2.3 < 5 2.22 < 5 3.5 < 1.1 09 74 108 1.9 6 2.53 < 4.8 < 1.1 10 72 106 1.6 6 2.56 < 9.1 < 1.1 11 76 100 1.4 7 1.96 2.3 < 1.1 12 75 99 1.4 2.52 < 1.1 < 1.1 13 88 119 2.5 4.76 < 1.3 < 1.1 14 82 101 1.9 4.83 7.7 1.2 15 89 126 1.7 4.56 3.2 < 1.0 16 70 112 1.7 5.86 60.2 < 1.0 Maximum 91 133 2.7 7 5.86 8 60.2 2.0 < 2 Minimum 69 96 1.4 2 1.38 < 5 < - 1.1 1.0 < 2 Average 77 108 1.9 5 2.95 5 5.2 1.3 < 2 #Tests 28 28 28 23 28 17 28 28 1 Site ACMW-02S Nitrate-Nitrogen and Water Level Chlorides 5 - 5470 50 4 - 40 — 5465 - 3 i — 5460 m 30 J - > 2 E = _ J - — 5455 (02 20 - = 10 0 —— — 5450 _ .. 0) 0) 0 it 0) o 0 0 0 0 --- 0 5445 CO a a. t Nitrate —a—Water Level Linear(Nitrate) —a—Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.20 400 0.15 300 J o) = E 0.10 E - • 200 - 0.05 100 0 0.00 1 “1 W O, O, n, 0 gym, N' ^, -. ,�. 0) ,moi U) D. ,0) V , U) r, ,0) .m. ,t, CO 00)) 0) 0) 0) 0) 0 0 0 0 0 CO 0) at at at 0) 0 0 0 0 0 —+—TDS Linear(TDS) —+—Total P Linear(Total P) I Annual Metals Report ACMW-02S Access Gate _Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-02S 10/31/1988 9.7 3 2.1 9.9 200 <4 30 <10 <0.1 <10 <20 11/28/1989 10.7 3.8 1.3 16 <100 <10 <100 <10 <1 <10 <50 08/01/1990 11 2.8 1.9 9.2 <50 <4 57 <10 <0.1 <10 <20 08/21/1991 11 3 1.9 7.1 <50 <4 53 <10 ` <0.1 <10 <20 07/21/1992 12 2.8 1.8 8.4 <50 <4 55 <10 <0.3 <10 <20 07/19/1994 13 3.2 1.8 7.1 310 <2 69 <10 0.1 <10 <20 08/15/1995 12 2.9 1.8 6.8 <50 <1 59 <10 0.2 <10 <10 06/19/1996 12 2.8 1.8 6 78 <1 54 <10 <0.1 <10 <10 06/16/1997 9.7 2.4 1.8 6.5 75 <2 <50 <10 7.4 <10 <25 07/21/1998' 11.1 2.36 1.77 6.31. 65 <2 <100 <10 <0.5 <10 <20 06/20/1999 7.93 3.43 1.7 5.73 <50 <2 <100 <1 <10 <0.1 <10 <20 07/18/2000 45.6 16.2 1.76 44.9 <2 <100 <10 <20 06/19/2001 9.14 2.06 1.61, 5.15 <2 <100 <10 <20 06/18/2002 8.88 2.03 1.68 5:17 20 <2 44 <0.2 <10 <0.2 <1 <20 06/17/2003 9.58 2.53 1.44 5.57 <10 <2 51.7 <0.2 <10 <0.2 <1 <20 05/18/2004 8.71 2.15 1.66 4.99 20 <2 <100 <0.2 <10 <0.2 <1 <20 06/14/2005 9.02 2.02 1.4 4.97 <2 <100 <10 <20 06/01/2006 9.11 2.23 1.72 5.54 50 <2 <2 <10 <2 <2 <20 06/19/2007 10.1 2.2 1.73 5.54 62 <2 46 <1 <10 <0.5 <1 <20 06/04/2008 9.61 2.15 1.79 5.2 78 <2 49 <1 <10 <0.5 <1 <20 06/17/2009 10.5 2.42 1.75 5.67 39 <2 51 <1 15.4 <0.5 <1 <20 06/09/2010 10 2.4 1.7 5.2: 91 <1 46 <1 <0.5 <0.5 <1 <2 06/14/2011 9.56 2.4 1.71 5.19 43.9 <1 41.9 <1 <0.5 <0.5 <1 <2 06/14/2012 40.9 <1 43.2 <1 <0.5 <1 06/18/2013 12.6 2.77 1.96 5.32 06/17/2014 7.08 1.80 1.63 4.39 315 1.46 34.6 <1 <0.5 <0.5 <1 <2 07/15/2015 12.1 2.67 1.70 5.10 <20 <1 <2 <1 <0.5 <0.5 <1 <10 07/12/2016 11.7 2.73 1.87 5.58 279 <1 55.7 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-02S 10/31/1988 260 <0.2 190 6 <50 <1 <1 <10 11/28/1989 <100 <1 <10 <10 <5 <50 08/01/1990 <30 <0.2 28 <1 <1 <10 08/21/1991 <30 <0.2 10 <1 <1 <10 07/21/1992 <0.2 <1 <1 <10 07/19/1994 320 <0.2 76 <1 <1 6 08/15/1995 <30 <0.2 <5 <1 <1 <5 06/19/1996 <30 <0.2 <5 <1 <1 <5 06/16/1997- <50 <0.5 <10 <5 <5 ` <50 07/21/1998 63.9 <0.5 <20 <2.5 <5 - <25 06/20/1999 <100 <0.2 <20 <5 <2.5 <1 <3 \ <1 <10 07/18/2000 1295 <20 <2.5 <10 06/19/2001 <100 <20 <2.5 <10 06/18/2002 <100 0.02 <20 <1 <2.5 <2 <1 <0.2 <10 06/17/2003 <100 <0.01 <20 <1 <2.5 <2 <1 <0.2 <10 05/18/2004 <100 <0.01 <20 <1 <2.5 <2 ( <1 <0.2 <10 06/14/2005 <100 <20 <2.5 <10 06/01/2006 163 <0.2 <20 <2 <2 <2.5 <10 <2 <1 <2 <10 06/19/2007 112 <0.2 <2 <2 <5 <2.5 <5 <1 <1 <3 <10 06/04/2008 249 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/17/2009 92.6 <0.2 <20 <2 <5 - <2.5 <5 <1 <1 <3 12.8 06/09/2010 62 <0.2 3 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2011 358 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2012 <0.2 <2 <5 <5 <1 <3 <3 06/17/2014 1080 <0.2 2.47 <2 <5 <0.5 <5 <1 <1 <3 <20 07/15/2015 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/12/2016 189 <0.2 2.14 <2 <5 1.66 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-04W SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/14/2016 21.72 4898.2 12.2 5.95 41.8 0.020 < 0.050 < 0.020 < 0.030 1.77 1.80 04/06/2016 22.08 4897.8 12.0 6.10 41.0 0.021 0.160 < 0.020 < 0.040 1.99 2.15 07/12/2016 9.91 4910.0 13.0 6.05 36.0 0.020 0.140 < 0.020 < 0.040 1.74 1.88 10/11/2016 14.13 4905.8 13.5 6.04 41.0 0.025 < 0.070 < 0.020 < 0.030 1.39 1.42 Maximum 22.08 4910.0 13.5 6.10 41.8 0.025 0.160 < 0.020 < 0.040 1.99 2.15 Minimum 9.91 4897.8 12.0 5.95 36.0 0.020 < 0.050 < 0.020 < 0.030 1.39 1.42 Average 16.96 4902.9 12.7 6.04 40.0 0.022 0.105 < 0.020 < 0.035 1.72 1.81 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 • Site: ACMW-04W SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/14/2016 140 229 21.7 19.20 < 1 < 1 04/06/2016 152 226 21.3 19.20 4.1 < 1 07/12/2016 135 202 23.0 15.60 9.7 < 1 10/11/2016 140 201 18.8 19.00 12.2 < 1 Maximum 152 229 23.0 19.20 12.2 < 1 Minimum 135 201 18.8 15.60 < 1, < 1 Average 142 215 21.2 18.25 6.8 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-04W SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 1989 To: 2016 . Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 89 14.2 4901.7 11.3 6.10 34.0 77 61.58 0.163 0.127 0.028 < 0.010 0.82 0.958 90 14.0 4902.7 12.4 6.25 33.0 97 4.90 0.034 0.104 0.020 < 0.010 0.99 1.100 91 15.1 4900.8 12.3 6.37 33.0 98 7.20 0.028 0.133 0.053 0.010 1.51 1.652 92 15.4 4900.5 11.9 6.24 34.0 96 3.10 0.038 0.118 0.026 0.012 1.74 1.868 93 12.2 4903.7 11.8 6.18 38.0 83 4.75 0.028 0.111 0.025 0.010 2.22 2.337 94 15.2 4900.7 12.2 6.23 40.0 76 1.27 0.069 0.121 0.033 0.011 3.55 3.676 95 12.9 4903.0 12.3 6.20 39.0 66 0.69 0.029 0.165 0.029 0.010 4.42 4.593 96 13.2 4902.7 12.5 6.11 43.0 62 3.08 0.028 0.181 0.021 0.013 3.03 3.219 97 11.9 4904.0 12.0 6.14 49.0 62 1.88 0.026 0.108 0.020 0.011 2.51 2.634 98 13.2 4902.7 12.0 5.82 53.0 52 5.30 0.027 0.203 < 0.024 < 0.010 3.20 3.416 99 13.4 4902.5 11.8 5.80 53.0 49 3.87 0.031 0.238 < 0.021 < 0.010 2.61 2.860 00 14.0 4901.9 11.6 6.23 52.0 47 1.75 0.018 0.118 0.021 < 0.011 2.65 2.721 01 14.2 4901.7 11.8 6.26 49.0 45 8.19 0.037 0.143 < 0.020 < 0.019 2.41 2.640 02 13.9 4902.0 12.0 6.15 46.0 47 4.46 0.024 0.343 < 0.019 2.29 2.651 03 13.8 4902.1 12.4 6.55 43.0 1.64 0.014 0.086 < 0.020 1.79 1.880 04 15.0 4900.9 11.3 6.21 44.2 29 0.33 0.019 0.133 < 0.020 < 0.020 1.70 1.862 05 14.7 4901.2 11.7 6.30 42.8 43 1.60 0.028 0.155 < 0.019 1.96 2.135 06 13.4 4902.5 12.2 6.15 39.6 42 1.55 0.015 0.138 < 0.049 5.31 5.086 07 15.7 4900.2 13.0 6.14 38.6 41 0.91 0.015 0.064 < 0.083 7.46 7.570 08 16.4 4899.5 12.2 6.24 42.8 33 3.90 0.021 0.057 < 0.064 5.49 5.573 09 15.1 4900.8 11.9 5.97 44.5 47 1.43 0.015 < 0.050 < 0.051 4.43 4.505 10 14.3 4901.6 12.6 6.10 48.6 43 1.07 0.020 < 0.050 < 0.040 3.57 3.636 11 12.9 4903.0 11.5 6.08 48.7 38 0.81 0.022 < 0.066 < 0.028 2.40 2.364 12 15.3 4904.6 12.3 5.99 47.4 0.021 < 0.093 0.023 < 0.028 2.34 2.508 13 15.3 4904.6 12.4 6.02 42.9 0.043 0.113 0.029 < 0.023 2.53 2.557 14 15.0 4904.9 11.8 6.18 40.1 0.018 0.100 0.029 < 0.019 1.90 1.920 15 17.2 4902.7 12.5 6.05 39.6 0.017 0.053 < 0.020 < 0.020 1.80 1.830 16 17.0 4902.9 12.7 6.04 40.0 0.022 0.105 < 0.020 < 0.035 1.72 1.813 Maximum 17.2 4904.9 13.0 6.55 53.0 98 61.58 0.163 0.343 0.053 0.083 7.46 7.570 Minimum 11.9 4899.5 11.3 5.80 33.0 29 0.33 0.014 0.050 < 0.020 < 0.010 0.82 0.958 Average 14.4 4902.2 12.1 6.15 42.8 58 5.45 0.031 0.124 0.025 0.024 2.80 2.913 #Tests 28 28 28 28 28 22 23 28 28 19 28 28 28 Site: ACMW-04W SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 89 244 310 52.2 5 18.65 9 < 2 90 230 329 53.1 6 29.30 < 5 2 < 2 91 222 313 50.5 < 5 31.42 < 5 2 < 2 92 222 311 49.5 7 32.04 < 5 4 < 2 93 204 301 37.6 6 29.75 < 5 7 < 2 < 2 94 181 271 29.3 < 5 25.85 7 12 < 2 95 176 268 29.9 5 22.95 5 6 2 96 163 240 24.4 3 19.95 5 18.1 1.1 97 151 220 20.1 2 15.30 5 7.8 3.6 98 144 211 14.3 < 5 13.95 < 5 15.1 < 1.1 99 135 199 12.4 6 10.45 < 5 7.4 < 1.1 00 134 192 13.8 5 8.84 < 5 3.9 1.1 01 131 192 18.3 6 7.50 < 5 1.2 < 1.1 02 139 207 25.4 16 6.93 10 5.1 < 1.1 03 136 199 25.1 < 5 8.60 5 9.3 < 3.1 04 134 193 22.1 < 5 9.62 6 3.9 < 1.1 05 135 183 23.1 < 5 9.94 < 5 1.8 < 1.1 06 143 212 19.0 < 5 9.75 < 1.1 < 1.1 07 146 213 12.6 < 5 10.20 15.7 < 2.9 08 137 181 13.5 < 5 9.70 5 7.4 < 1.1 09 147 233 22.9 6 8.46 1.5 < 1.1 10 145 215 21.3 < 5 7.96 6.3 < 1.1 11 138 196 17.0 < 5 7.99 8.5 1.6 12 129 180 12.7 9.77 11.2 < 1.1 13 132 183 13.9 13.42 7.2 < 1.1 14 129 185 14.2 17.46 5.0 < 1.1 15 138 202 16.4 20.05 78.3 < 1.0 16 142 215 21.2 18.25 6.8 < 1.0 Maximum 244 329 53.1 16 32.04 10 78.3 3.6 < 2 Minimum 129 180 12.4 2 6.93 < 5 1.1 < 1.0 < 2 Average 157 227 24.5 6 15.50 5 9.4 1.6 < 2 #Tests 28 28 28 23 28 17 28 28 1 Site ACMW-04W Nitrate-Nitrogen and Water Level Chlorides 10 - 4910 100 9 - 4908- 90 8 - 4906 80 • 7 - 4904 70 6 4902 D so - 5 _ ilikkalillikIL 4900 m so ~4""► E 4 "_ 4898 m 40 3 _ r 4896 30 �� AIL 2 - -...., 4894 20 Al. _ 1 - - 4892 0 . - 4890 0 CO a) Is. C0 LO .0 0) CO 0 10 O )CO 0 0 0 0 0 r C01 O co .10 N. 0) C) N. 0 0 A- A- 10 .– CO 0) 0) CO o 0 0 0 0 -. Nitrate --a—Water Level Linear(Nitrate) —6—Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 400 - 0.40 . 3000.30 J - J 61OI 1= 200 0.20 . 100 — 0.10 i — 0.00 - —, CDA- 0) LO ^, 0) m N CO • CO) CO co rn 0) CD rn o, 0 0 0 0 0 ' coo , COM N r W o, m m o, o N n CO CO LO 0 0 0 0 —+—TDS —Linear(TDS) —.—Total P Linear(Total P) Annual Metals Report ACMW-04W Gansberq. Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-04W 10/31/1988 20 5.4 3.8 12 1300 <4 120 <10 <0.1 <10 <20 11/28/1989 31.4 7.7 4 40.6 130 <10 220 <10 <1 <10 <50 08/01/1990 27 6 4.2 16 170 <4 180 <10 <0.1 <10 <20 08/21/1991 25 6.3 4.2 15 <50 <4 160 <10 <0.1 <10 <20 07/21/1992 30 6.5 4.4 20 230 <4 190 <10 0.1 <10 <20 07/12/1994 22 4.8 3.7 20 350 <2 140 <10 <0.1 <10 <20 08/15/1995 21 4.7 3.8 20 51 <1 150 <10 0.1 <10 <10 06/19/1996 19 4.3 3.5 19 95 1 140 <10 <0.1 <10 <10 06/16/1997 17 4 4.2 20 67 <2 120 <10 <0.5 <10 <25 07/21/1998 16.1 3.36 3.35 19.4 133 <2 <100 <10 <0.5 <10 <20 06/20/1999 11.4 2.02 3.16 17.7 82 '<2 <100 <1 <10 <0.1 <10 <20 07/18/2000 9.41 2.73 3.03 17.9 <2 122 <10 <20 06/19/2001 12.9 2.82 3.13 19.7 <2 <100 <10 <20 06/18/2002 13.7 2.92 3.6 22.4 <10 <2 98 <0.2 <10 <0.2 <1 <20 06/17/2003 11.5 2.83 2.84 21.8 <10 <2 106 <0.2 <10 <0.2 <1 <20 05/18/2004 10.9 2.6 2.95 20 <10 <2 <100 <0.2 <10 <0.2 <1 <20 06/14/2005 11 2.55 2.87 19.3 <2 <100 <10 <20 06/01/2006 12.5 2.47 3 19.7 <50 <2 <2 <10 27 <2 <20 06/19/2007 12.1 2.55 3.11 22.8 21 <2 85 <1 <10 <0.5 <1 <20 06/04/2008 10.7 2.25 / 3.15 20.8 42 <2 110 <1 <10 <0.5 <1 <20 06/18/2009 12.9 2.96 3.37 23.1 33 <2 100 <1 13.7 <0.5 <1 <20 06/09/2010 14 3.1 3.1 24 <20 <1 100 <1 <0.5 <0.5 <1 <2 06/14/2011 12.4 2.98 3.14 25.2 45.4 <1 92.8 <1 <0.5 <0.5 <1 <2 06/14/2012 <20 <1 81.5 <1 <0.5 <1 06/18/2013 9.60 1.90 2.80 21.8 06/17/2014 10.6 2.44 2.92 24.2 ' <20 <1 78.9 <1 <0.5 <0.5 <1 <2 07/15/2015 9.33 2.18 2.64 21.9 <20, <1 85.5 <1 <0.5 <0.5 <1 <10 07/12/2016 11.2 2.66 2.91 24.9 <20< <1 91.6 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-04W 10/31/1988 790 <0.2 430 <5 <50 1 <1 <10 11/28/1989 140 <1 17 <10 <5 <50 08/01/1990 120 <0.2 13 <1 <1 <10 08/21/1991 <30 <0.2 <10 <1 <1 <10 07/21/1992 340 <0.2 14 <1 <1 ' <10 07/12/1994 290 <0.2 6.5 <1 <1 <5 08/15/1995 <30 <0.2 <5 <1 <1 <5 06/19/1996 <30 <0.2 <5 <1 <1 <5 06/16/1997 83 <0.5 <10 <5 <5 - <50 07/21/1998 73.9 <0.5 <20 <2.5 <5 <25 06/20/1999 <100 <0.2 <20 <5 <2.5 2 <3 <1 10.2 07/18/2000 119 <20 <2.5 <10 06/19/2001 <100 <20 <2.5 ' <10 06/18/2002 <100 0.02 <20 <1 <2.5 <2 <1 <0.2 <10 06/17/2003 <100 <0.01 <20 <1 <2.5 <2 <1 <0.2 <10 05/18/2004 <100 <0.01 <20 <1 <2.5 <2 <1 <0.2 <10 06/14/2005 <100 <20 <2.5 <10 06/01/2006 <100 <0.2 <20 <2 <2 <2.5 <10 <2 <1 <2 10.2 06/19/2007 <50 <0.2 <20 <2 <5 <2.5 <5 <2 <1 <3 <10 06/04/2008 66 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/18/2009 94.2 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 15.1 06/09/2010 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2011 464 <0.2 2.01 <2 <5 <0.5 <5 <1 <1 <3 <20 06/14/2012 <0.2 <2 <5 <5 <1 <1 <3 06/17/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/15/2015 26.4 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/12/2016 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-06S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/14/2016 15.58 5207.9 11.6 8.77 159 0.021 0.167 0.081 0.022 0.168 0.357 04/06/2016 15.77 5207.7 12.1 10.18 86 0.021 0.202 0.117 0.028 0.173 0.403 07/12/2016 16.61 5206.9 14.4 7.69 198 0.049 0.095 < 0.020 < 0.010 0.057 0.152 10/11/2016 16.62 5206.9 13.5 7.39 226 0.048 0.104 < 0.020 < 0.010 0.023 0.127 Maximum 16.62 5207.9 14.4 10.18 226 0.049 0.202 0.117 < 0.028 0.173 0.403 Minimum 15.58 5206.9 11.6 7.39 86 0.021 0.095 < 0.020 < 0.010 < 0.023 < 0.127 Average 16.15 5207.4 12.9 8.51 167 0.035 0.142 0.060 < 0.018 0.105 0.260 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-06S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/14/2016 317 558 64.8 32.8 04/06/2016 257 436 68.2 36.3 < 1 < 1 07/12/2016 359 537 57.5 29.3 1 < 1 10/11/2016 385 632 57.4 27.9 < 1 < 1 Maximum 385 632 68.2 36.3 1 < 1 Minimum 257 436 57.4 27.9 < 1 < 1 Average 330 541 62.0 31.6 1.0 < 1.0 #Tests 4 4 4 0 4 0 I 3 3 0 Site: ACMW-06S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 1989 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 89 14.8 5205.9 11.9 9.29 209 170 29.13 0.060 0.253 0.119 < 0.010 0.028 0.292 90 14.9 5205.9 12.7 8.12 207 276 12.33 0.069 0.152 0.028 0.010 0.065 0.227 91 14.5 5206.2 12.2 8.20 207 136 34.00 0.064 0.413 0.169 0.015 0.066 0.494 92 14.9 5205.8 12.1 8.57 195 344 2.30 0.049 0.288 0.068 0.012 0.066 0.366 93 14.6 5206.1 12.0 8.84 196 226 16.60 0.039 0.342 0.129 0.015 0.075 0.433 94 14.9 5205.8 12.1 9.00 182 230 19.07 0.056 0.347 0.092 0.017 0.068 0.433 95 15.9 5204.8 12.3 7.83 228 270 0.89 0.055 0.250 0.076 0.011 0.079 0.340 96 14.9 5205.8 12.5 8.55 243 299 12.10 0.056 0.647 0.231 0.017 0.035 0.699 97 14.7 5206.0 12.0 8.79 201 228 18.23 0.070 1.404 0.410 0.031 0.044 1.479 98 15.6' 5205.1 11.3 9.36 175 163 29.30 0.037 0.506 0.181 0.032 0.049 0.589 99 15.9 5204.8 11.6 7.84 258 302 0.96 0.091 0.358 0.097 0.025 0.061 0.444 00 16.1 5204.6_ 11.5 7.04 253 330 0.80 0.048 0.176 0.047 0.020 0.021 0.137 01 16.4 5204.3 12.2 6.98 250 259 1.28 0.041 0.237 0.021 0.023 0.042 0.324 02 15.9 5204.8 11.8 7:90 225 181 26.02 0.041 0.297 0.014 0.050 0.365 03 15.5 5205.2 12.5 7.87 203 9.55 0.027 0.209 0.024 0.067 0.290 04 15.9 5204.8 11.9 7.78 194 152 9.43 0.037 0.236 0.108 0.072 0.074 0.372 05 15.5 5205.3 11.5 7.97 186 191 6.26 0.050 0.303 0.035 0.079 0.421 06 15.6 5205.1 12.2 7.52 205 244 0.65 0.045 0.210 0.039 0.065 0.303 07 16.1 5204.6 12.8 7.96 179 152 6.30 0.031 0.192 0.064 0.078 0.239 08 15.7 5205.0 12.6 7.74 215 256 1.04 0.056 0.223 0.059 0.050 0.201 09 15.5 5205.2 11.6 7.32 203 221 4.53 0.038 0.232 0.034 0.074 0.224 10 15.7 5205.0 12.0 8.13 186 166 13.30 0.048 0.270 0.022 0.060 0.217 11 15.2 5205.5 11.6 8.21 169 254 1.16 0.044 0.150 0.022 0.078 0.226 12 15.7 5207.8 12.4 8.00 190 0.054 0.162 0.059 0.029 0.058 0.239 13 15.6 5207.9 12.7 7.20 227 0.090 0.182 0.041 0.016 0.044 0.216 14 15.8 5207.7 12.3 7.59 229 0.074 0.094 0.029 0.015 0.034 0.114 15 16.2 5207.3 12.5 8.07 191 0.032 0.140 0.037 < 0.010 0.092 0.232 16 16.1 5207.4 12.9 8.51 167 0.035 0.142 0.060 < 0.018 0.105 0.260 Maximum 16.4 5207.9 12.9 9.36 258 344 34.00 0.091 1.404 0.410 0.072 0.105 1.479 Minimum 14.5 5204.3 11.3 6.98 167 136 0.65 0.027 0.094. 0.021 < 0.010 0.021 0.114 Average 15.5 5205.7 12.1 8.08 206 230 11.10 0.051 0.300 0.105 0.025 0.061 0.363 #Tests 28 28 28 28 28 22 23 28 28 19 28 28 28 Site: ACMW-06S SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 89 359 666 70.3 6 37.1 < 2 < 2 90 422 673 75.9 6 33.1 < 5 9 4 91 408 654 86.4 < 5 22.4 5 8 3 92 424 705 90.7 < 5 25.2 13 3 < 2 93 401 679 86.1 7 24.8 < 5 6 < 2 < 2 94 368 643 93.4 5 25.4 < 4 4 2 95 430 719 92.5 5 28.0 8 3 2 96 437 667 85.9 17 29.0 5 12.1 7 97 368 568 77.6 10 25.2 8 12.6 2.8 98 315 555 76.8 6 25.0 < 5 17.6 2.6 99 415 680 76.6 < 5 46.3 5 5.8 < 1.1 00 454 741 74.9 < 5 32.8 < 5 < 1.1 < 1.1 01 440 722 72.8 7 30.5 < 5 < 1.1 < 1.1 02 393 640 69.2 6 27.1 10 < 1.1 < 1.1 03 381 639 69.3 < 5 26.5 < 5 < 1.1 < 1.1 04 377 572 67.8 6 26.1 8 2.9 < 1.1 05 358 542 68.9 < 5 25.8 5 1.9 < 1.1 06 382 638 63.5 < 9 25.7 1.3 < 1.1 07 356 604 61.4 5 25.1 < 1.1 < 1.1 08 378 625 62.0 6 25.8 12 1.2 < 1.1 09 366 578 . 61.0 < 5 24.7 < 1.1 < 1.1 10 351 574 60.3 6 23.0 1.4 < 1.1 11 336 570 61.2 8 22.4 8.7 < 1.1 12 366 598 59.6 23.7 1.3 < 1.1 13 380 617 56.8 25.2 5.1 < 1.1 14 387 642 58.2 26.8 1.7 < 1.1 15 355 592 60.7 28.6 7.4 < 1.0 16 330 541 62.0 31.6 1.0 < 1.0 Maximum 454 741 93.4 17 46.3 13 17.6 7.0 < 2 Minimum 315 541 56.8 < 5 22.4 < 4 < 1.0 < 1.0 < 2 Average 383 630 71.5 7 27.6 7 4.4 1.8 < 2 #Tests 28 28 28 23 28 17 28 28 1 Site ACMW-06S Nitrate-Nitrogen &Water Level Chlorides 5 5210 200 180 4 5208 160 140 5206 TT 120 - - > J E _ j - 100 2 5204 0 80 60 - 1 5202 40 20 0 5200 p . . , . „ ,LO co LO � 0. m mIN. � .0 .o, ,0 ,p, gym, co co rn rn rn CD 0 0 0 0 0 m m rn co m rn o o 0 o o Nitrate t Water Level Linear(Nitrate) t Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 1000 _ 0.4 900 800 0.3 700 - 600 J - J E 500 - 3 0.2 400 300 = 0.1 200 _ ~ter 100 ° 0.0 � cn ,m. ,0� � 0, m. �, I, SCO 0 rn m m rnm 0 CO 0) m 0) m m o 0 0 0 0 CO CD CO 0) 0) 0) o 0 0 0 0 —+—TDS —Linear(TDS) —.—Total P —Linear(Total P) Annual Metals Report ACMW-06S Cello Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-06S 11/02/1988 56 25 10 46 1100 <4 77 <10 <0.1 <10 <20 11/28/1989 103 15.4 10.1 39.8 <100 <10 390 <10 <1 <10 <50 08/01/1990 72 28 8.2 37 <50 <4 160 <10 <0.1 <10 <20 08/21/1991 76 33 8.2 37 230 <4 250 <10 0.1 <10 <20 07/21/1992 78 16 8.2 41 <50 <4 200 <10 <0.1 <10 <20 07/19/1994 75 17 8.3 50 440 <2 200 <10 0.7 <10 <20 08/15/1995 96 30 7.6 44 87 1.4 290 <10 <0.1 <10 <10 06/19/1996 81 32 9.1 52 74 1 36 <10 0.2 <10 <10 06/16/1997 81 18 9 40 46 <2 190 <10 <0.5 <10 <25 07/21/1998 60 12.5 8.03 40.1 <25 6 190 <10 <0.5 <10 <20 06/20/1999 63.6 17.2 8.12 41 66 <2 216 <1 <10 <0.1 <10 <20 06/19/2001 35.5 26 7.47 38.3 <2 115 <10 <20 06/18/2002 58.1 15.7 7.4 37 50 <2 170 <0.2 <10 <0.2 3 <20 06/17/2003 56.6 12.6 6.48 39.5 160 <2 139 <0.2 <10 <0.2 3 <20 05/18/2004 83.4 14.6 6.88 35.6 240 <2 173 <0.2 <10 <0.2 3 <20 06/14/2005 58.3 13.2 7.08 34 <2 <100 <10 <20 06/01/2006 58 23.5 7.08 33.8 <50 <2 <2 <10 <2 <2 <20 06/19/2007 63.8 25.1 7.21 32.8 <20 3.45 200 <1 <10 <0.5 <1 <20 ) 06/04/2008 69.1 24.5 7.92 33.8 48 2.54 210 <1 <10 <0.5 <1 <20 06/17/2009 64.3 15.7 7.71 34.3 970 2.39 150 <1 14.2 <0.5 <1 <20 06/09/2010 62 17 6.9 35 200 <1 150 <1 <0.5 <0.5 <1 2.2 06/14/2011 57.9 11.3 7.25 36.7 263 <1 100 <1 <0.5 <0.5 1.1 <2 06/14/2012 408 2.72 193 <1 <0.5 <1 06/18/2013 57.9 18.7 6.92 32.0 06/17/2014 60.8 22.3 6.78 31.8 85.0 1:96 172 <1 <0.5 <0.5 <1 2.29 07/15/2015 44.7 12.6 6.72 31.6 137 <1 148 <1 <0.5 <0.5 <1 <10 07/12/2016 52.3 21.8 6.58 30.3 20.8 1.16 159 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-06S 11/02/1988 1900 <0.2 590 14 <50 2 <1 13 11/28/1989 <100 <1 250 <10 <5 <50 08/01/1990 <30 <0.2 47 <1 <1 <10 08/21/1991 190 <0.2 200 1 <1 <10 07/21/1992 33 <0.2 54 <1 <1 <10 07/19/1994 230 <0.2 140 <1 <1 , 8 08/15/1995 58 <0.2 280 <1 <1 <5 06/19/1996 2400 <0.2 360 <1 <1 <5 06/16/1997 <50 <0.5 73 <5 <5 <50 07/21/1998 <30 <0.5 <20 <2.5 <5 26.3 06/20/1999 <100 <0.2 123 <5 <2.5 <1 <3 <1 <10 06/19/2001 <100 74 <2.5 <10 06/18/2002 <100 0.02 <20 2 <2.5 <2 <1 <0.2 <10 06/17/2003 134 <0.01 345 3 <2.5 <2 <1 <0.2 <10 05/18/2004 156 0.03 140 2 <2.5 <2 <1 <0.2 <10 06/14/2005 935 311 <2.5 <10 06/01/2006 <100 <0.2 <20 2 3 <2.5 <10 <2 <1 <2 <10 06/19/2007 106 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/04/2008 127 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/17/2009 1030 <0.2 115 8.1 <5 <2.5 <5 <1 <1 <3 13.7 06/09/2010 <20 <0.2 35 5.7 <5 <0.5 <5 <1 <1 <3 <20 06/14/2011 <20 <0.2 8.46 7.83 <5 <0.5 <5 <1 <1 <3 <20 06/14/2012 <0.2 2.51 <5 <5 <1 <1 <3 06/17/2014 <20 <0.2 5.82 2.26 <5 <0.5; <5 <1 <1 <3 <20 07/15/2015 <20 <0.2 9.76 5.01 <5 <0.5 <5 <1 <1 <3 <20 07/12/2016 <20 <0.2 181 2.64 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. • Site: ACMW-20 SOUTH TAHOE PUBLIC UTILITY DISTRICT . ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/26/16 15.03 5075.27 12.6 6.27 32.9 0.052 < 0.050 < 0.020 < 0.020 6.380 6.190 05/04/16 5.75 5084.55 11.2 6.09 22.7 0.045 1.300 < 0.020 < 0.060 13.900 15.200 07/27/16 10.66. 5079.64 13.8 6.02 34.0 0.065 < 0.050 < 0.020 < 0.160 0.505 0.531 11/08/2016 14.76 5075.54 14.9 6.20 33.8 0.071 < 0.100 < 0.020 < 0.010 0.590 0.583 Maximum 15.03 5084.55 14.9 6.27 34.0 0.071 1.300 < 0.020 < 0.160 13.900 15.200 Minimum 5.75 5075.27 11.2 6.02 22.7 0.045 < 0.050 < 0.020 < 0.010 0.505 0.531 Average 11.55 5078.75 13.1 6.15 30.9 0.058 0.375 < 0.020 < 0.063 5.344 5.626 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-20 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/26/16 107 156.0 2.28 3.32 < 1 < 1 05/04/16 171 189.0 4.28 4.14 < 1 < 1 07/27/16 81 91.1 2.07 4.29 21.6 < 1 11/08/2016 69 84.7 1.95 3.14 < 1 < 1 Maximum 171 189 4.28 4.29 21.6 < 1 Minimum 69 84.7 1.95 3.14 1 < 1 Average 107 130.2 2.65 3.72 6.2 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-20 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 10.9 5079.4 11.5 6.11 33.4 1.20 0.054 0.073 0.025 < 0.010 0.516 0.599 13 10.6 5079.7 11.6 6.20 31.4 0.085 0.051 0.026 < 0.013 0.623 0.856 14 12.7 5077.6 12.2 6.31 29.7 0.066 0.065 0.025 < 0.013 0.946 1.334 15 13.2 5077.1 12.8 6.17 31.5 0.066 0.057 0.020 0.011 0.512 0.561 16 11.6 5078.8 13.1 6.15 30.9 0.058 0.375 < 0.020 < 0.063 5.344 5.626 Maximum 13.2 5079.7 13.1 6.31 33.4 1.20 0.085 0.375 0.026 0.063 5.344 5.626 Minimum 10.6 5077.1 11.5 6.11 29.7 1.20 0.054. 0.051 0.020 0.010 0.512 0.561 Average 11.8 5078.5 12.2 6.18 31.4 1.20 0.066 0.124 0.023 0.022 1.588 1.795 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-20 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 67 78 1.32 2.20 1 < 1 13 70 78 1.62 2.42 1 < 1 14 66 77 1.65 2.27 1 < 1 • 15 67 85 2.02 2.96 32 < 1 16 107 130 2.65 3.72 6 < 1 Maximum 107 130 2.65 3.72 32 1 Minimum 66 77 1.32 2.20 1 < 1 Average 75 90 1.85 2.72 8 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-20 Nitrate-Nitrogen &Water Level Chlorides 20 - 5088 50 16 5084 40 125080 IT 30 y J - J of £ E 8 . 5076 2 20 45072 10 p • 5068 p 12 13 14 15 1612 13 14 15 16 —4—Nitrate --.—Water Level —.—Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 400 1 0.40 300 _ 0.30 _ J J 6) Of _ E - E - 200 0.20 100 0.10 00.00 12 13 14 15 16 12 13 14 15 16 —o—TDS Total P Annual Metals Report ACMW-20 Diamond Valley Rd - Paynesville Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-20 06/20/2012 8.73 1.87 2.27 5.05 62.3 <1 21.7 <1 <10 <0.5 <1 <20 06/11/2013 5.50 1.22 1.83 3.84 07/08/2014 6.55 1.62 2.04 4.34 103 1.54 19.9 <1 <0.5 <0.5 <1 2.32 , 08/18/2015 8.28 2.11 2.50 5.25 61.6 <1 22.4 <1 <0.5 <0.5 <1 <2 07/27/2016 8.20 2.04 2.21 5.24 41.6 <1 20.9 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-20 06/20/2012 113 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 07/08/2014 502 <0.2 3.41 <2 <5 <0.5 <5 <1 <1 <3 <20 08/18/2015 91.6 <0.2 <2 2.11 <5 <0.5 <5 <1 <1 <3 <20 07/27/2016 33.7 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-21 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/26/2016 20.43 4990.90 10.0 6.36 36.9 0.039 < 0.050 < 0.020 < 0.020 , 0.883 0.875 05/04/2016 13.27 4998.06 10.0 6.36 36.6 0.060 < 0.050 < 0.020 < 0.020 0.809 0.739 07/27/2016 8.02 5003.31 10.9 6.13 39.8 0.076 < 0.050 < 0.020 < 0.010 0.838 0.846 11/08/2016 13.04 4998.29 12.5 6.29 39.0 0.076 < 0.100 < 0.020 < 0.010 0.931 0.978 Maximum 20.43 5003.31 12.5 6.36 39.8 0.076 < 0.100 < 0.020 < 0.020 0.931 0.978 Minimum 8.02 4990.90 10.0 6.13 36.6 0.039 < 0.050 < 0.020 < 0.010 0.809 0.739 Average 13.69 4997.64 10.9 6.29 38.1 0.063 < 0.063 < 0.020 < 0.015 0.865 0.860 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-21 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coil Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/26/2016 82 112 3.49 4.36 < 1 < 1 05/04/2016 78 97 4.79 3.86 < 1 < 1 07/27/2016 88 124 8.68 2.25 < 1 < 1 11/08/2016 85 119 6.72 5.06 < 1 < 1 Maximum 88 124 8.68 5.06 < 1 < 1 Minimum 78 97 3.49 2.25 < 1 < 1 Average 83 -113 5.92 3.88 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-21 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 13.4 4997.9 10.4 6.13 37.4 2.30 0.031 0.113 0.024 < 0.022 2.065 2.201 13 14.9 4997.0 10.1 6.29 34.2 0.047 0.099 0.025 < 0.016 1.003 1.124 14 13.3 4998.0 9.2 6.45 38.1 0.042 0.124 0.021 < 0.013 1.033 1.491 15 17.7 4993.6 10.1 6.30 41.5 0.053 0.081 < 0.020 0.018 1.320 1.391 16 13.7 4997.6 10.9 6.29 38.1 0.063 < 0.063 < 0.020 < 0.015 0.865 0.860 Maximum 17.7 4998.0 10.9 6.45 41.5 2.30 0.063 0.124 0.025 0.022 2.065 2.201 Minimum 13.3 4993.6 9.2 6.13 34.2 2.30 0.031 0.063 0.020 0.013 0.865 0.860 Average 14.6 4996.8 10.1 6.29 37.8 2.30 0.047 0.096 0.022 0.017 1.257 1.413 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-21 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 99 143 12.1 5.76 6 < 1 13 83 114 8.2 4.16 1 < 1 14 84 119 7.6 4.06 1 < 1 15 96 135 7.4 4.94 < 1 < 1 16 83 113 5.9 3.88 < 1 < 1 Maximum 99 143 12.1 5.76 6 1 Minimum 83 113 5.9 3.88 1 < 1 Average 89 125 8.2 4.56 2 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-21 Nitrate-Nitrogen &Water Level Chlorides 10 -_ 5000 50 8 - 4998 40 V 6 4996 ) 30 d J 01 J 44994 R 20 2 _ 4992 10 _ ~\• • • • 0 4990 0 , 12 13 14 15 16 12 13 14 15 16 —6—Nitrate —11)—Water Level —6—Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 -- 400 0.40 300 _ 0.30 _ J J 11 _ O1 E - E - 200 0.20 100 _ 4- • • • • 0.10 0 0.00 , 12 13 14 15 16 12 13 14 15 16 —6—TDS Total P Annual Metals Report ACMW-21 River Ranch Rd Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-21 06/20/2012 5.69 1.5 1.57 11.9 110 <1 20 <1 <10 <0.5 <1 <20 06/11/2013 4.91 1.23 1.32 8.66 07/08/2014 7.09 1.98 1.57 10.1 22.1 <1 19.4 <1 <0.5 <0.5 <1 <2 08/18/2015 12.5 3.53 2.14 14.7 <20 <1 37.3 <1 <0.5 <0.5 <1 <2 07/27/2016 7.78 2.20 1.84 12.3 55.0 <1 23.4 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-21 06/20/2012 89.4 <0.2 <20 3.08 <5 <2.5 <5 <1 <1 <3 <10 07/08/2014 29.8 <0.2 <2 3.97 <5 <0.5 <5 <1 <1 <3 <20 08/18/2015 <20 <0.2 <2 2.91 <5 <0.5 <5 <1 <1 <3 <20 07/27/2016 27.3 <2 2.95 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-22 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/26/2016 31.03 4988.25 12.4 6.16 38.2 0.015 < 0.050 < 0.020 < 0.020 2.83 2.830 05/04/2016 24.42 4994.86 13.2 6.17 39.8 0.021 < 0.050 < 0.020 < 0.020 2.66 2.500 07/27/2016 28.88 4990.40 13.7 6.04 38.6 0.014 0.310 < 0.020 < 0.030 2.32 2.630 11/08/2016 35.51 4983.77 13.2 6.19 38.4 0.017 < 0.100 < 0.020 < 0.030 2.66 2.640 Maximum 35.51 4994.86 13.7 6.19 39.8 0.021 0.310 < 0.020 < 0.030 2.83 2.830 Minimum 24.42 4983.77 12.4 6.04 38.2 0.014 < 0.050 < 0.020 < 0.020 2.32 2.500 Average 29.96 4989.32 13.1 6.14 38.8 0.017 0.128 < 0.020 < 0.025 2.62 2.650 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-22 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 . Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coll E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/26/2016 81 128 4.19 1.66 1 < 1 05/04/2016 95 113 4.22 1.81 < 1 < 1 07/27/2016 81 114 3.01 1.70 < 1 < 1 11/08/2016 88 116 3.74 1.92 < 1 < 1 Maximum 95 128 4.22 1.92 1 < 1 Minimum 81 113 3.01 1.66 < 1 < 1 Average 86 118 3.79 1.77 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-22 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 30.5 4988.8 10.1 6.28 31.2 2.60 0.026 0.057 0.028 < 0.010 0.58 0.646 13 32.5 4986.7 10.9 6.18 34.0 0.062 0.057 0.027 < 0.019 1.61 1.365 14 32.6 4986.7 11.9 6.24 36.7 0.017 0.102 0.023 < 0.019 2.02 2.053 15 33.3 4986.0 11.8 6.15 37.4 0.017 0.072 < 0.020 < 0.020. 2.36 2.413 16 30.0 4989.3 13.1 6.14 38.8 0.017 0.128 < 0.020 < 0.025 2.62 2.650 Maximum 33.3 4989.3 13.1 6.28 38.8 2.60 0.062 0.128 0.028 0.025 2.62 2.650 Minimum 30.0 4986.0 10.1 6.14 31.2 2.60 0.017 0.057 0.020 0.010 0.58 0.646 Average 31.8 4987.5 11.5 6.20 35.6 2.60 0.028 0.083 0.024 0.019 1.84 1.825 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-22 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 63 73 1.12 4.10 < 1 < 1 13 75 94 2.86 1.81 < 1 < 1 14 81 106 3.89 1.72 1 < 1 15 84 118 4.15 1.68 4 < 1 16 86 118 3.79 1.77 1 < i 1 Maximum 86 118 4.15 4.10 4 1 Minimum 63 73 1.12 1.68 < 1 < 1 Average 78 102 3.16 2.22 2 1 #Tests 5 5 5 0 5 0 5 5 0 Site AC MW-22 Nitrate-Nitrogen &Water Level Chlorides 10 5000 50 8 4995 40 6 - 4990 m 30 ith d J J Of 4 - 4985 R £ 20 • -_ 2 • — 4980 10 0 - - 4975 0 12 13 14 15 16 12 13 14 15 16 --*--Nitrate t Water Level Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 400 I 0.40 300 0.30 J _ J _ E E - 200 0.20 100 _ • 0.10 0 0.00 ' ' 12 13 14 15 16 12 13 14 15 16 —o—TDS — Total P Annual Metals Report ACMW-22 Fredericksburg Ln Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-22 06/20/2012 7.18 1.6 2.06 4.13 127 <1 16.9 <1 <10 <0.5 <1 <20 06/11/2013 8.95 1.57 2.34 4.66 07/08/2014 10.9 2.49 2.57 5.43 <20 <1 27.2 <1 <0.5 <0.5 <1 <2 08/18/2015 10.6 2.49 2.33 5.11 <20 <1 26.6 <1 <0.5 <0.5 <1 <2 07/27/2016 11.3 2.66 2.64 5.6 <20 <1 26.4 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-22 06/20/2012 127 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 07/08/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 08/18/2015 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/27/2016 <20 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. - Site: ACMW-23 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/26/2016 19.98 4958.37 14.5 7.35 173 0.029 < 0.050 < 0.020 < 0.010 1.01 0.968 05/04/2016 17.63 4960.72 15.5 7.27 174 0.030 < 0.050 < 0.020 < 0.010 1.02 0.917 07/27/2016 10.79 4967.56 16.2 7.17 172 0.034 < 0.050 < 0.020 • < 0.010 1.01 1.000 11/08/2016 19.69 4958.66 16.2 7.36 173 0.029 < 0.100 < 0.020 < 0.010 1.02 1.020 Maximum 19.98 4967.56 16.2 7.36 174 0.034 < 0.100 < 0.020 < 0.010 1.02 1.020 Minimum 10.79 4958.37 14.5 7.17 172 0.029 < 0.050 < 0.020 < 0.010 1.01 0.917 Average 17.02 4961.33 15.6 7.29 173 0.031 < 0.063 < 0.020 < 0.010 1.02 0.976 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-23 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/26/2016 264 391 4.02 19.2 < 1 < 1 05/04/2016 270 360 4.27 20.1 < 1 < 1 07/27/2016 261 374 4.18 19.4 < 1 < 1 11/08/2016 270 368 4.40 20.5 < 1 < 1 Maximum 270 391 4.40 20.5 1 < 1 Minimum 261 360 4.02 19.2 < 1 < 1 Average 266 373 4.22 19.8 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-23 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 18.6 4959.7 15.1 7.39 177 16.00 0.250 0.068 0.026 < 0.014 1.06 1.142 13 18.9 4959.5 14.9 7.31 175 0.152 0.091 0.024 < 0.013 1.04 1.079 14 19.0 4959.4 15.6 7.34 175 0.100 0.062 0.026 < 0.010 1.00 1.010 15 21.8 4956.6 15.0 7.35 174 0.033 0.054 < 0.020 < 0.010 1.02 1.050 16 17.0 4961.3 15.6 7.29 173 0.031 < 0.063 < 0.020 < 0.010 1.02 0.976 Maximum 21.8 4961.3 15.6 7.39 177 16.00 0.250 0.091 0.026 < 0.014 1.06 1.142 Minimum 17.0 4956.6 14.9 7.29 173 16.00 0.031 0.054 0.020 < 0.010 1.00 0.976 Average 19.1 4959.3 15.2 7.34 175 16.00 0.113 0.068 0.023 < 0.012 1.03 1.051 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-23 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 269 378 4.22 17.8 1 < 1 13 271 379 4.15 19.7 1 < 1 14 271 379 4.23 19.8 1 < 1 15 273 384 4.14 19.2 9 < 1 16 266 373 4.22 19.8 1 < 1 Maximum 273 384 4.23 19.8 9 1 Minimum 266 373 4.14 17.8 1 < 1 Average 270 379 4.19 19.3 3 < 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-23 Nitrate-Nitrogen &Water Level Chlorides 10 - 4970 50 8 i 4965 40 x 6 . a 4960 c, 30 J -........7 . d £ 4 ass5 20 2 • 4950 10 • • • • ♦ - • • • • • 0 ' , 4945 0 , 12 13 14 15 16 12 13 14 15 16 —6—Nitrate tWater Level —6—Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 -- 400 0.40 -I- 300 300 0.30 -_ J J OI of 200 0.20 100 i 0.10 • 0 0.00 - , 12 13 14 15 16 12 13 14 15 16 —o—TDS Total P Annual Metals Report ACMW-23 Scott Brooke's Ranch by Irrigation Ditch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-23 06/20/2012 31.4 12.6 4.47 33.1 582 2.58 90.4 <1 <10 <0.5 1.16 <20 06/11/2013 30.0 13.2 5.38 32.2 07/08/2014 33.8 17.3 6.79 31.8 6630 <10 122 <10 <5 <5 <10 20.2 08/18/2015 32.7 13.2 4.70 29.3 2430 3.54 107 <1 <0.5 <0.5 3.66 15.2 07/27/2016 30.5 14.0 4.63 31.5 1670 2.68 110 <1 <0.5 <0.5 3.47 7.54 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-23 06/20/2012 1020 <0.2 <20 2.4 <5 <2.5 <5 <1 <1 13 <10 07/08/2014 12700 <0.2 220 <20 <50 <5 <50 <10 <10 38.6 <200 08/18/2015 4990 <0.2 99.3 2.54 <5 0.830 <5 <1 <1 22.4 <20 07/27/2016 3610 59.6 2.04 <5 <0.5 <5 <1 <1 16.4 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-24 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/26/2016 25.80 4927.45 13.2 6.61 152 0.076 0.140 < 0.020 < 0.020 1.88 2.020 05/04/2016 22.66 4930.59 13.6 6.46 164 0.074 < 0.050 < 0.020 < 0.020 1.40 1.320 07/27/2016 23.82 4929.43 14.9 6.37 162 0.073 0.220 < 0.020 < 0.020 1.45 1.670 11/08/2016 25.80 4927.45 13.7 6.51 162 0.082 0.170 < 0.020 < 0.020 1.80 1.970 Maximum 25.80 4930.59 14.9 6.61 164 0.082 0.220 < 0.020 < 0.020 1.88 2.020 Minimum 22.66 4927.45 13.2 6.37 152 0.073 < 0.050 < 0.020 < 0.020 1.40 1.320 Average 24.52 4928.73 13.9 6.49 160 0.076 0.145 < 0.020 < 0.020 1.63 1.745 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-24 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/26/2016 315 525 45.6 21.5 < 1 < 1 05/04/2016 403 620 79.9 31.5 < 1 < 1 07/27/2016 348 570 69.8 28.5 < 1 < 1 11/08/2016 350 535 56.4 25.5 < 1 < 1 Maximum 403 620 79.9 31.5 < 1 < 1 Minimum 315 525 45.6 21.5 < 1 < 1 Average 354 563 62.9 26.8 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-24 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 24.4 4928.9 13.0 6.64 168 12.00 0.268 0.166 0.028 0.025 2.11 2.298 13' 25.4 4927.9 13.5 6.59 165 0.127 0.124 0.024 < 0.019 2.09 2.171 14 25.2 4928.0 13.9 6.62 162 0.200 0.128 0.025 < 0.018 2.18 2.283 15 25.3 4927.9 13.7 6.58 155 0.080 0.079 < 0.020 0.018 1.91 1.975 16 24.5 4928.7 13.9 6.49 160 0.076 0.145 < 0.020 < 0.020 1.63 1.745 Maximum 25.4 4928.9 13.9 6.64 168 12.00 0.268 0.166 0.028 0.025 2.18 2.298 Minimum 24.4 4927.9 13.0 6.49 155 12.00 0.076 0.079 0.020 0.018 1.63 1.745 Average 25.0 4928.3 13.6 6.58 162 12.00 0.150 0.128 0.024 0.020 1.98 2.095 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-24 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 334 523 39.1 38.4 2 < 1 13 342 535 46.6 31.3 1 < 1 14 352 552 55.1 28.8 < 1 < 1 15 345 531 49.1 31.1 < 1 < 1 16 354 563 62.9 26.8 < 1 < 1 Maximum 354 563 62.9 38.4 2 1 Minimum 334 523 39.1 26.8 1 1 Average 345 541 50.6 31.3 1 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-24 Nitrate-Nitrogen &Water Level Chlorides 10 4940 100 -. 90 : 8 4935 80 70 6 4930 > 60 : ■ J E d Cn 50 4 4925 3 40 : ..- 30 30 : 2 • • e---________„ • _4920 20 : 10 04915 0 12 13 14 15 16 12 13 14 15 16 —•—Nitrate —re—Water Level --•—Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 400 i 0.40 • 300 • 0.30 J Of Of - EE 2000.20 100 i 0.10 • p0.00 , 12 13 14 15 16 12 13 14 15 16 —•—TDS —.6—Total P Annual Metals Report ACMW-24 Scott Brooke's Ranch by Irrigation Ditch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-24 06/20/2012 46.1 19 4.04 39.4 719 2.32 121 <1 <10 <0.5 <1 <20 06/11/2013 43.8 18.4 3.64 37.9 07/08/2014 52.0 26.0 5.12 42.3 4200 6.38 264 <2 <1 <1 4.52 6.02 08/18/2015 44.2 19.1 3.39 38.0 40.4 1.46 190 <1 <0.5 <0.5 <1 <2 07/27/2016 47.6 21.9 4.34 45.2 1420 2.09 208 <1 <0.5 <0.5 11.3 3.20 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-24 06/20/2012 874 <0.2 89 <2 <5 <2.5 <5 <1 <1 10.6 <10 07/08/2014 4760 <0.2 181 <4 <10 1.30 <10 <2 <2 23.9 <40 08/18/2015 180 <0.2 4.56 <2 <5 <0.5 <5 <1 <1 8.77 <20 07/27/2016 1940 67.9 <2 <5 <0.5 <5 <1 <1 13.8 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-25 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/26/2016 8.33 4933.91 11.7 6.34 41.6 0.038 0.480 < 0.020 < 0.020 3.28 3.760 05/04/2016 7.82 4934.42 11.6 6.25 42.8 0.039 0.180 < 0.020 < 0.030 6.00 6.180 07/27/2016 9.46 4932.78 15.5 6.20 49.2 0.050 0.070 < 0.020 < 0.010 2.44 2.510 11/08/2016 9.29 4932.95 17.0 6.30 46.8 0.044 0.210 < 0.020 < 0.020 2.65 2.860 Maximum 9.46 4934.42 17.0 6.34 49.2 0.050 0.480 < 0.020 < 0.030 6.00 6.180 Minimum 7.82 4932.78 11.6 6.20 41.6 0.038 0.070 < 0.020 < 0.010 2.44 2.510 Average 8.73 4933.52 14.0 6.27 45.1 0.043 0.235 < 0.020 < 0.020 3.59 3.828 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-25 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/26/2016 100 182 11.80 5.87 1 < 1 05/04/2016 144 194 13.30 7.06 < 1 < 1 07/27/2016 124 178 12.00 6.07 3 3 11/08/2016 128 174 13.00 6.04 < 1 < 1 Maximum 144 194 13.30 7.06 3 3 Minimum 100 174 11.80 5.87 < 1 < 1 Average 124 182 12.53 6.26 1.5 1.5 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-25 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 8.7 4933.5 13.8 6.41 47.7 0.38 0.049 0.137 0.025 < 0.040 3.13 3.303 13 8.8 4933.4 13.4 6.30 47.8 0.078 0.053 0.026 0.025 1.98 2.056 14 9.5 4932.8 13.2 6.38 46.7 0.053 0.124 0.023 < 0.018 1.68 1.897 15 9.8 4932.4 14.0 6.32 44.3 0.047 0.073 < 0.020 < 0.018 1.50 1.553 16 8.7 4933.5 14.0 6.27 45.1 0.043 0.235 < 0.020 < 0.020 3.59 3.828 Maximum 9.8 4933.5 14.0 6.41 47.8 0.38 0.078 0.235 0.026 0.040 3.59 3.828 Minimum 8.7 4932.4 13.2 6.27 44.3 0.38 0.043 0.053 0.020 0.018 1.50 1.553 Average 9.1 4933.1 13.7 ' 6.34 46.3 0.38 0.054 0.124 0.023 0.024 2.38 2.527 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 , Site: ACMW-25 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016' Total Fecal/ Fecal— TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 125 163 9.0 6.46 3 < 1 13 121 159 10.1 6.51 1 < 1 14 119 158 10.9 7.23 2 < 1 15 111 150 9.6 5.54 < 1 < 1 16 124 182 12.5 6.26 2 2 Maximum 125 182 12.5 7.23 3 2 Minimum 111 150 9.0 5.54 1 1 Average 120 162 10.4 6.40 2 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-25 Nitrate-Nitrogen &Water Level 1 Chlorides 10 4950 50 8 4945 40 - x 6 4940 > 30 . m th E d E _ 4 4935 3 20 2 -4930 10 0 - 4925 0 _ , , 12 13 14 15 16 12 13 14 15 16 —•—Nitrate —is—Water Level t Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 -- 400 0.40 300 _ 0.30 _ J J 01 - 0) - E - E - 200 0.20 100 • • • • 0.10 • • - 0 0.00 , 12 13 14 15 16 12 13 14 15 16 --•--TDS Total P Annual Metals Report ACMW-25 cess road between Neddenriep & Brooke ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-25 06/20/2012 14 4.24 3.46 12 <20 <1 43.2 <1 <10 <0.5 <1 <20 06/11/2013 12.4 3.79 3.44 10.8 07/08/2014 13.6 4.63 3.26 11.9 <20 <1 40.5 <1 <0.5 <0.5 <1 2.36 08/18/2015 10.5 3.72 2.91 10.6 28.1 <1 33.0 <1 <0.5 <0.5 <1 <2 07/27/2016 12.9 4.47 3.38 12.1 <20 <1 39.6 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-25 06/20/2012 66.4 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 07/08/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 3.02 <20 08/18/2015 20.0 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/27/2016 <20 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-26 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/26/2016 15.61 4879.99 11.1 6.42 62.2 0.074 0.110 < 0.020 < 0.020 2.910 3.020 05/04/2016 8.48 4887.12 10.7 6.31 38.6 0.074 0.390 < 0.020 < 0.030 2.220 2.610 07/27/2016 9.91 4885.69 18.0 6.51 79.7 0.282 0.384 < 0.020 0.035 0.981 1.400 11/08/2016 15.56 4880.04 15.5 6.50 69.9 0.155 0.196 < 0.020 0.043 0.961 1.200 Maximum 15.61 4887.12 18.0 6.51 79.7 0.282 0.390 < 0.020 0.043 2.910 3.020 Minimum 8.48 4879.99 10.7 6.31 38.6 0.074 0.110 < 0.020 < 0.020 0.961 1.200 Average 12.39 4883.21 13.8 6.44 62.6 0.146 0.270 < 0.020 0.032 1.768 2.058 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-26 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/26/2016 159 260 22.3 9.46 < 1- < 1 05/04/2016 177 251 23.9 35.00 125 10.8 07/27/2016 151 219 10.2 7.87 2 < 1 11/08/2016 153 230 19.4 8.34 < 1 < 1 Maximum 177 260 23.9 35.00 125 10.8 Minimum 151 219 10.2 7.87 < 1 < 1 Average 160 240 19.0 15.17 32.3 3.5 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-26 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 11.4 4884.2 12.4 6.36 62.6 1.00 0.095 0.153 0.023 0.031 1.296 1.481 13 12.7 4882.9 13.4 6.38 65.4 0.107 0.229 0.026 0.026 1.411 2.087 14 13.8 4881.8 ' 13.0 6.46 60.7 0.101 0.160 0.023 0.033 1.777 1.983 15 14.1 4881.5 12.0 6.36 57.4 0.079 . 0.146 < 0.020 0.020 3.533 3.675 16 12.4 4883.2 13.8 6.44 62.6 0.146 0.270 < 0.020 0.032 1.768 2.058 Maximum 14.1 4884.2 13.8 6.46 65.4 1.00 0.146 0.270 0.026 0.033 3.533 3.675 Minimum 11.4 4881.5 12.0 6.36 57.4 1.00 0.079 0.146 0.020 0.020 1.296 1.481 Average 12.9 4882.7 12.9 6.40 61.7 1.00 0.106 0.192 0.022 0.028 1.957 2.257 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-26 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 137 200 16.3 6.66 7 6 13 149 219 17.0 7.94 6 3 14 150 227 21.3 8.42 7 3 15 164 254 24.1 10.65 4 1 16 160 240 19.0 15.17 32 3 Maximum 164 254 24.1 15.17 32 6 Minimum 137 200 16.3 6.66 4 1 Average 152 228 19.5 9.77 11 3 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-26 Nitrate-Nitrogen &Water Level - Chlorides 10 4895 50 _ 8 4890 40 6 4885 d 30 - JJ J E 4 4880 g E 20 2 4875 10 - 0 4870 0 12 13 14 15 16 12 13 14 15 16 —.--Nitrate —a—Water Level t Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.50 400 0.40 300 0.30 -J _ J _ O) _ E E p) _ - 200 0.20 100 _ 0.10 — ----......- 0 ---....i0 ( , , 0.00 , , , 12 13 14 15 16 12 13 14 15 16 --*—TDS —4—Total P Annual Metals Report ACMW-26 cess road between Neddenriep & Brooke ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-26 06/20/2012 16.1 4.31 4.14 20.6 54.2 <1 47.9 <1 <10 <0.5 <1 <20 06/11/2013 12.8 3.43 4.25 19.3 07/08/2014 19.5 5.57 5.42 27.3 <20 <1 58.0 <1 <0.5 <0.5 <1 4.72 08/18/2015 14.0 4.28 4.03 20.3 24.6 <1 51.2 <1 <0.5 <0.5 <1 <2 07/27/2016 15.0 4.51 5.76 21.0' <20 <1 44.7 <1 <0.5 <0.5 <1 3.27 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-26 06/20/2012 54 <0.2 25.9 <2 <5 <2.5 <5 <1 <1 3.16 <10 07/08/2014 26.6 <0.2 80.0 1.99 <5 <0.5 <5 <1 <1 4.20 <20 08/18/2015 24.8 <0.2 20.7 <2 <5 <0.5 <5 <1 <1 <3 <20 07/27/2016 <20 89.4 3.85 <5 <0.5 <5 <1 <1 5.03 <20 Cations reported as mg/L.All other metals reported as ug/L. J DIAMOND VALLEY RANCH MONITORING WELLS Site: ACMW-07S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L - 02/03/2016 65.22 5509.17 05/11/2016 63.42 5510.97 11.5 6.72 46.8 0.050 < 0.050 < 0.020 < 0.010 0.280 0.282 08/10/2016 63.04 5511.35 11.9 6.65 44.4 0.044 < 0.050 < 0.020 < 0.010 0.286 0.278 11/15/2016 64.38 5510.01 10.8 6.49 44.0 0.044 < 0.100 < 0.020 < 0.010 0.282 0.235 Maximum 65.22 5511.35 11.9 6.72 46.8 0.050 < 0.100 < 0.020 < 0.010 0.286 0.282 Minimum 63.04 5509.17 10.8 6.49 44.0 0.044 < 0.050 < 0.020 < 0.010 0.280 0.235 Average 64.02 5510.38 11.4 6.62 45.1 0.046 < 0.067 < 0.020 < 0.010 0.283 0.265 #Tests 4 4 3 3 3 0 0 3 3 _ 3 3 3 3 Site: ACMW-07S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 02/03/2016 Unable to pump water 05/11/2016 89 100 1.50 2.40 < 1 < 1 08/10/2016 89 97.3 1.46 2.30 < 1 < 1 11/15/2016 100 99.2 1.52 2.40 < 1 < 1 Maximum 100 100 1.52 2.40 < 1 < 1 Minimum 89 97 1.46 2.30 < 1 < 1 Average 93 99 1.49 2.37 < 1 < 1 #Tests 3 3 3 0 3 0 3 3 0 Site: ACMW-07S SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2009 To: 2016 • Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 09 61.1 5513.3 11.9 7.60 54 43 1.53 0.049 0.073 < 0.010 0.286 0.329 10 61.2 5512.0 11.2 7.34 50 0.040 < 0.050 < 0.010 0.205 0.255 11 60.5 5513.9 10.9 6.42 43 8.90 0.043 0.075 < 0.010 0.379 0.464 12 64.8 5509.6 10.8 6.52 51 2.80 0.092 0.069 < 0.020 < 0.010 0.344 0.423 13 63.6 5510.8 13.5 6.99 48 0.075 < 0.050 0.021 < 0.010 0.284 0.273 14 62.5 5511.9 11.2 7.02 46 0.050 0.066 0.029 < 0.010 0.285 0.283 15 64.7 5509.7 11.3 6.81 44 0.053 < 0.050 < 0.020 < 0.010 0.283 0.272 16 64.0 5510.4 11.4 6.62 45 0.046 < 0.067 < 0.020 < 0.010 0.283 0.265 Maximum 64.8 5513.9 13.5 7.60 54 43 8.90 0.092 0.075 0.029 0.010 0.379 0.464 Minimum 60.5 5509.6 10.8 6.42 43 43 1.53 0.040 < 0.050 0.020 < 0.010 0.205 0.255 Average 62.8 5511.5 11.5 6.92 48 43 4.41 0.056 0.062 0.022 0.010 0.294 0.320 #Tests 8 8 8 8 8 1 3 8 8 5 8 8 8 Site: ACMW-07S SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E. coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 09 96 106 1.33 8 3.23 < 1 < 1 First year of sampling 10 82 109 1.25 2.73 183 < 1 11 75 98 1.52 1.99 1 < 1 12 96 115 1.54 3.44 < 1 < 1 13 91 98 1.41 2.65 < 1 < 1 14 85 101 1.43 2.52 < 1 < 1 15 87 104 1.40 2.34 < 1 < 1 16 93 99 1.49 2.37 < 1 < 1 Maximum 96 115 1.54 8 3.44 183 < 1.0 Minimum 75 98 1.25 8 1.99 < 1 < 1.0 Average 88 104 1.42 8 2.66 24 < 1.0 #Tests 8 8 8 1 8 0 • 8 8 0 Site ACMW-07S Nitrate-Nitrogen &Water Level Chlorides 5 5520 50 4 5515 40 3 5510 > 30 Zn D) E d E 2 5505 3 20 5500 10 0 5495 0 -r • • • ° • • ---- • • 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 —4—Nitrate —11--Water Level Linear(Nitrate) —4—Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 400 0.3 300 J - J rn - rn 0.2 E - E 200 0.1 100 T 0 • 0.0 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 tTDS Linear(TDS) —6—Total P Linear(Total P) Annual Metals Report ACMW-07S Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-07S 06/18/2009 14.1 1.39 1.73 7.74 33 <2 19 <1 14.4 <0.5 <1 <20 07/08/2010 13 1.6 <1 3.6 44 <1 27 <1 <0.5 <0.5 <1 <2 07/13/2011 12.5 2.65 1.07 4.27 327 <1 30.9 <1 <0.5 <0.5 <1 <2 07/26/2012 13.6 2.5 1.29 5.49 323 <1 24.8 <1 <10 <0.5 <1 <20 07/09/2014 12.5 2.17 1.34 5.88 26.6 <1 23.3 <1 <0.5 <0.5 <1 <2 08/19/2015 11.5 2.04 1.28 5.41 88.2 <1 25.1 <1 <0.5 <0.5 <1 <2 08/10/2016 11.2 2.13 1.21 5.44 47.0 <1 23.4 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-07S 06/18/2009 76.1 <0.2 <20 <2 <5 <2.5 <5 <1 <1 16 13.8 07/08/2010 35 <0.2 4.7 <2 <5 <0.5 <5 <1 <1 4.4 <20 07/13/2011 247 <0.2 12.9 <2 <5 <0.5 <5 <1 <1 <3 <20 07/26/2012 116 <0.2 <20 2.21 <5 <2.5 <5 <1 <1 6.39 <10 07/09/2014 26.3 <0.2 <2 <2 <5 <0.5 <5 <1 <1 5.08 <20 08/19/2015 91.9 <0.2 4.19 <2 <5 <0.5 <5 <1 <1 5.32 <20 08/10/2016 21.1 <0.2 <2 <2 <5 <0.5 <5 <1 <1 3.76 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-08N SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 02/03/2016 7.76 5456.69 12.1 6.75 81.1 0.045 < 0.050 < 0.020 < 0.010 0.592 0.574 05/11/2016 4.03 5460.42 12.4 6.73 74.9 0.047 0.068 < 0.020 < 0.010 0.619 0.687 08/10/2016 5.08 5459.37 12.9 6.83 76.1 0.043 < 0.050 < 0.020 < 0.010 0.597 0.566 11/15/2016 5.51 5458.94 12.4 6.58 73.3 0.042 < 0.100 < 0.020 < 0.010 0.573 0.529 Maximum 7.76 5460.42 12.9 6.83 81.1 0.047 < 0.100 < 0.020 < 0.010 0.619 0.687 Minimum 4.03 5456.69 12.1 6.58 73.3 0.042 < 0.050 < 0.020 < 0.010 0.573 0.529 Average 5.60 5458.86 12.5 6.72 76.4 0.044 0.067 < 0.020 < 0.010 0.595 0.589 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-08N SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 02/03/2016 118 152 0.98 1.08 < 1 < 1 05/11/2016 120 149 1.13 1.03 < 1 < 1 08/10/2016 123 155 1.17 1.06 14.5 < 1 11/15/2016 133 152 1.37 1.12 < 1 < 1 Maximum 133 155 1.37 1.12 15 < 1 Minimum 118 149 0.98 1.03 < 1 < 1 Average 124 152 1.16 1.07 4 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-08N SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2009 To: 2016 • Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 09 4.3 5460.2 11.7 6.50 62 53 0.22 0.040 < 0.050 < 0.010 0.361 0.391 10 4.1 5460.3 12.4 6.62 68 0.042 0.127 < 0.010 0.450 0.536 11 4.7 5459.8 12.0 6.90 80 0.04 0.040 < 0.058 < 0.010 0.626 0.693 12 5.7 5458.7 12.0 7.02 81 0.08 0.044 < 0.055 < 0.020 < 0.010 0.744 0.808 13 6.3 5458.2 12.2 6.90 83 0.052 < 0.050 0.022 < 0.010 0.689 0.701 14 6.3 5458.2 12.0 6.98 79 0.039 0.074 0.025 < 0.010 0.672 0.679 15 7.9 5456.6 12.2 6.81 78 0.045 < 0.050 < 0.020 < 0.010 0.643 0.630 16 5.6 5458.9 12.5 6.72 76 0.044 0.067 < 0.020 < 0.010 0.595 0.589 Maximum 7.9 5460.3 12.5 7.02 83 53 0.22 0.052 0.127 0.025 < 0.010 0.744 0.808 Minimum 4.1 5456.6 11.7 6.50 62 53 0.04 0.039 0.050 0.020 < 0.010 0.361 0.391 Average 5.6 5458.9 12.1 6.80 76 53 0.11 0.043 0.066 0.021 < 0.010 0.597 0.628 #Tests 8 8 8 8 8 1 3 8 8 5 8 8 8 Site: ACMW-08N SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E. coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 09 106 142 5.46 6 1.00 3.5 < 1 First year of sampling 10 110 170 3.35 1.25 2.5 < 1 11 120 164 0.77 1.80 5.4 < 1 12 130 165 0.83 1.46 < 1.0 < 1 13 125 167 0.97 1.48 23.4 < 1 14 112 162 0.91 1.17 6.4 < 1 15 120 163 1.08 1.13 147.4 < 1 16 124 152 1.16 1.07 4.4 < 1 Maximum 130 170 5.46 6 1.80 147.4 < 1.0 Minimum 106 142 0.77 < 6 1.00 < 1.0 < 1.0 Average 118 161 1.82 6 1.29 24.3 < 1.0 #Tests 8 8 8 1 8 0 8 8 0 Site ACMW-08N Nitrate-Nitrogen &Water Level Chlorides 5 5475 40 4 5470 30 : x 3 5465 m d °f J ' 20 - - 2 5460 3 1 5455 10 0 5450 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 t Nitrate —E—Water Level -t-Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 400 0.3 300 J - J rn ' 0.2 £ £ 200 - • 0.1 -- 100 • 9. 0 0.0 - — , 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 — TDS —Linear(TDS) P —Linear(Total P) Annual Metals Report ACMW-08N Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-08N 06/18/2009 13.7`_ 4.1 1.5 8.95 <20 <2 39 <1 17:2 <0.5 <1 <20 08/10/2010 15 5 1.6 9.5 <20 <1 34 <1 <0.5 <0.5 <1 <2 07/13/2011 16.7 5.8 1.86 10.8 <20 <1 37 <1 <0.5 <0.5 <1 <2 07/26/2012 15.6 5.34 1.88 10.2 <20 <1 36.2 <1 <10 <0.5 <1 <20 07/10/2013 16.1 5.60 1.78 10.1 07/09/2014 16.0 5.46 1.91 10.5 <20 <1 38.2 <1 <0.5 <0.5 <1 <2 08/19/2015 14.8 5.25 1.64 9.81 <20 <1 36.6 <1 <0.5 <0.5 <1 <2 08/10/2016 14.8 5.21 1.70 9.83 <20 <1 _33.8 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-08N 06/18/2009 43.5 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 08/10/2010 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/13/2011 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/26/2012 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 07/09/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 08/19/2015 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 08/10/2016 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-09D SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/09/2016 34.48 5476.08 12.0 6.07 33.0 0.061 < 0.050 < 0.020 < 0.010 1.120 0.745 05/24/2016 24.33 5486.23 12.6 6.41 32.3 0.058 < 0.100 < 0.020 < 0.010 0.969 0.812 08/16/2016 31.85 5478.71 14.0 6.39 33.0 0.058 < 0.050 < 0.020 < 0.010 0.908 0.759 11/30/2016 35.26 5475.30 11.9 6.36 32.1 0.057 < 0.110 < 0.020 < 0.010 0.873 0.875 Maximum 35.26 5486.23 14.0 6.41 33.0 0.061 < 0.110 < 0.020 < 0.010 1.120 0.875 Minimum 24.33 5475.30 11.9 6.07 32.1 0.057 < 0.050 < 0.020 < 0.010 0.873 0.745 Average 31.48 5479.08 12.6 6.31 32.6 0.059 < 0.078 < 0.020 < 0.010 0.968 0.798 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-09D SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/09/2016 85 76.6 1.63 3.86 < 1 < 1 05/24/2016 81 78.7 1.41 3.18 < 1 < 1 08/16/2016 80 79.2 1.43 4.20 < 1 < 1 11/30/2016 84 83.2 1.46 2.55 517.2 < 1 Maximum 85 83 1.63 4.20 517 < 1 Minimum 80 77 1.41 2.55 < 1 < 1 Average 83 79 1.48 3.45 130 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-09D SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2009 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 09 27.4 5483.2 13.1 6.37 32 25 4.43 0.059 0.052 < 0.010 0.865 0.808 10 30.1 5478.7 12.9 6.22 33 0.058 < 0.050 < 0.010 0.870 0.920 11 34.3 5476.2 12.2 6.32 34 0.83 0.057 0.100 < 0.015 1.077 1.167 12 38.7 5471.9 13.1 6.68 32 1.60 0.107 0.121 0.020 < 0.010 0.750 0.880 13 35.4 5475.2 12.7 6.36 32 0.067 < 0.050 0.022 < 0.010 0.701 0.661 14 32.8 5477.7 13.2 6.57 32 0.067 0.060 0.027 < 0.010 0.716 0.722 15 36.9 5473.6 13.3 6.43 31 0.058 < 0.050 < 0.020 < 0.010 0.882 0.741 16 31.5 5479.1 12.6 6.31 33 0.059 < 0.078 < 0.020 < 0.010 0.968 0.798 Maximum 38.7 5483.2 13.3 6.68 34 25 4.43 0.107 0.121 0.027 < 0.015 1.077 1.167 Minimum 27.4 5471.9 12.2 6.22 31 25 0.83 0.057 < 0.050 0.020 < 0.010 0.701 0.661 Average 33.4 5477.0 12.9 6.41 32 25 2.29 0.066 0.070 0.022 < 0.011 0.853 0.837 #Tests 8 8 8 8 8 1 3 8 8 5 8 8 8 Site: ACMW-09D SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E. coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 09 81 79 1.37 < 5 2.29 5.0 2.8 First year of sampling 10 79 81 1.28 2.59 5.2 2.3 11 84 85 1.61 2.78 < 1.0 < 1.0 12 87 79 1.39 2.83 < 1.0 < 1.0 13 83 76 1.35 3.26 < 1.0 < 1.0 14 80 76 1.41 3.57 < 1.0 < 1.0 15 82 81 1.41 3.56 < 1.0 < 1.0 16 83 79 1.48 3.45 130.1 < 1.0 Maximum 87 85 1.61 5 3.57 130.1 2.8 Minimum 79 76 1.28 < 5 2.29 < 1.0 < 1.0 Average 82 80 1.41 5 3.04 18.1 1.4 #Tests 8 8 8 1 8 0 8 8 0 Site ACMW-09D Nitrate-Nitrogen &Water Level Chlorides 5 5485 50 4 i 5480 40 3 5475 ar 30 J > J E . v E 2 i 5470 0 20 1 «� 5465 10 0 - 5460 0 _ ♦ I • -. • • • • • 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 —•—Nitrate —a—Water Level Linear(Nitrate) t Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 400 - 0.3 300 J - I J in* - o) 0.2 E - I E 200 0.1 100 o _ •— • • • • • ♦ • • 0 . 0.0 - - . 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 —.—TDS —Linear(TDS) —.--Total P —Linear(Total P) Annual Metals Report ACMW-09D Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-09D 06/18/2009 6.2 1.7 0.951 6.48 760 2.48 27 <1 16.6 <0.5 <1 <20 07/08/2010 7.3 2 <1 6.8 570 <1 28 <1 <0.5 <0.5 <1 <2 07/13/2011 6.85 1.78 1 7.89 132 <1 23.4 <1 <0.5 <0.5 <1 <2 07/26/2012 6.16 1.17 0.91 7.54 79.6 <1 21.3 <1 <10 <0.5 <1 <20 08/01/2014 6.34 1.74 <1 7.15 105 1.74 21.2 <1 <0.5 <0.5 <1 <2 06/11/2015 6.30 1.70 1.12 7.74 102 1.95 16.4 <1 <0.5 <0.5 <1 <2 08/16/2016 6.22 1.69 <1 7.68 95.8 1.01 21.1 <1 <0.5 0.671 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-09D 06/18/2009 632 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 14.5 07/08/2010 690 <0.2 14 <2 <5 0.54 <5 <1 <1 <3 <20 07/13/2011 85.1 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/26/2012 170 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 08/01/2014 296 <0.2 5.62 <2) <5 <0.5 <5 <1 <1 <3 <20 06/11/2015 231 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 08/16/2016 35.4 <0.2 <2 <2 <5 0.618 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-10 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/09/2016 29.66 5504.53 12.4 6.05 75.0 0.039 < 0.050 < 0.020 < 0.010 1.200 1.17 05/24/2016 26.45 5507.74 12.7 6.41 73.6 0.042 < 0.100 < 0.020 < 0.010 1.220 1.23 08/16/2016 29.00 5505.19 13.8 6.53 73.7 0.039 < 0.050 < 0.020 < 0.010 0.389 0.359 11/30/2016 31.24 5502.95 12.4 6.35 72.3 0.036 < 0.110 < 0.020 < 0.010 0.381 0.375 Maximum 31.24 5507.74 13.8 6.53 75.0 0.042 < 0.110 < 0.020 < 0.010 1.220 1.230 Minimum 26.45 5502.95 12.4 6.05 72.3 0.036 < 0.050 < 0.020 < 0.010 0.381 0.359 Average 29.09 5505.10 12.8 6.34 73.7 0.039 < 0.078 < 0.020 < 0.010 0.798 0.784 #Tests 4 4 4.0 4 4.0 0 0 4 4 4 4 4 4 Site: ACMW-10 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/09/2016 136 174 5.09 2.84 < 1 < 1 05/24/2016 140 178 5.32 3.18 < 1 < 1 08/16/2016 122 156 4.36 3.44 < 1 < 1 11/30/2016 113 167 5.07 3.74 < 1 < 1 Maximum 140 178 5.32 3.74 < 1.0 < 1.0 Minimum 113 156 4.36 2.84 < 1.0 < 1.0 Average 128 169 4.96 3.30 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 t Site: ACMW-10 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2009 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 09 26.1 5508.1 11.8 6.46 113 100 1.51 0.044 < 0.050 < 0.010 0.141 0.171 10 25.7 5505.9 12.1 6.39 97 0.046 < 0.050 < 0.010 0.148 0.198 11 30.0 5504.2 10.8 6.52 85 0.044 < 0.050 < 0.010 0.145 0.218 12 34.3 5499.9 12.7 6.47 91 1.20 0.212 0.122 < 0.020 < 0.010 0.113 0.245 13 31.4 5502.8 12.0 6.43 82 0.035 0.056 < 0.020 < 0.010 0.150 0.156 14 30.7 5503.4 12.6 6.53 72 0.040 0.079 0.030 < 0.010 0.231 0.280 15 33.4 5500.8 13.1 6.36 76 0.040 < 0.050 < 0.020 < 0.010 0.260 0.257 16 29.1 5505.1 12.8 6.34 74 0.039 <• 0.078 < 0.020 < 0.010 0.798 0.784 Maximum 34.3 5508.1 13.1 6.53 113 100 1.51 0.212 0.122 0.030 < 0.010 0.798 0.784 Minimum 25.7 5499.9 10.8 6.34 72 100 1.20 0.035 0.050 0.020 < 0.010 0.113 0.156 Average 30.1 5503.8 12.2 6.44 86 100 1.35 0.062 0.067 0.022 < 0.010 0.248 0.289 #Tests 8 8 8 8 8 1 2 8 8 5 8 8 8 Site: ACMW-10 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 09 162 248 5.28 < 5 3.42 < 1.0 < 1.0 First year of sampling 10 145 208 4.91 3.60 < 1.0 < 1.0 11 131 190 4.99 3.43 < 2.4 < 1.0 12 153 193 4.48 2.54 < 1.0 < 1.0 13 124 176 4.03 2.31 < 1.0 < 1.0 14 114 159 4.51 3.35 < 1.0 < 1.0 15 129 175 4.56 2.88 < 1.0 < 1.0 16 128 169 4.96 3.30 < 1.0 < 1.0 Maximum 162 248 5.28 < 5 3.60 < 2.4 < 1.0 Minimum 114 159 4.03 < 5 2.31 < 1.0 < 1.0 Average 136 190 4.71 < 5 3.10 < 1.2 < 1.0 #Tests 8 8 8 1 8 0 8 8 0 Site ACMW-10 - Nitrate-Nitrogen &Water Level Chlorides 1.0 5515 50 0.8 5510 40 u 0.6 5505 d 30 J - a J . -J E Oil . v E 0.4 - 5500 3 20 0.2 5495 10 0.0 - 5490 0 , 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 — Nitrate tWaterLevel Linear(Nitrate) —4--Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 400 - 0.3 300 J rn - 3) 0.2 E E 200 0.1 100 0 0.0 - . 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 +TDS —Linear(TDS) —*—Total P —Linear(Total P) Annual Metals Report ACMW-10 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-10 06/18/2009 35.1 7.51 1.46 10.4 130 <2 31 <1 21.5 <0.5 <5 <20 07/08/2010 24 6.4 <1 7.5 330 <1 27 <1 <0.5 <0.5 <1 <2 • 07/26/2012 20.4 6.05 1.22 9.11 324 <1 34.7 <1 <10 <0.5 <1 <20 08/01/2014 18.8 5.30 1.16 8.58 <20 <1 30.0 <1 <0.5 <0.5 <1 <2 06/11/2015 16.5 4.84 <1 7.88 <20 <1 30.7 <1 <0.5 <0.5 <1 <2 08/16/2016 17.1 5.08 <1 7.62 51.2 <1 26.9 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-10 06/18/2009 137 <0.2 <20 2.9 <5 <2.5 <5 <1 <1 <3 <10 07/08/2010 580 <0.2 20 <2 <5 <0.5 <5 <1 <1 <3 <20 07/26/2012 135 <0.2 <20 <2 <5. <5 <1 <1 <3 <10 08/01/2014 24.1 <0.2 2.71 <2 ' <5 <0.5 <5 <1 <1 <3 <20 06/11/2015 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 08/16/2016 85.0 <0.2 3.20 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. • Site: ACMW-11 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/09/2016 21.44 5481.57 10 5.87 22.6 0.023 < 0.050 < 0.020 < 0.020 3.940 2.5 05/24/2016 11.84 5491.17 9.9 6.33 22.1 0.020 < 0.100 < 0.020 < 0.040 3.110 2.91 08/16/2016 17.72 5485.29 16.4 6.31 28.8 0.028 < 0.050 < 0.020 < 0.040 0.814 0.739 11/30/2016 22.09 5480.92 14.8 6.15 29.5 0.012 0.560 < 0.020 < 0.020 3.860 4.42 Maximum 22.09 5491.17 16.4 6.33 29.5 > 0.028 0.560 < 0.020 < 0.040 3.940 4.420 Minimum 11.84 5480.92 9.9 5.87 22.1 0.012 < 0.050 < 0.020 < 0.020 0.814 0.739 Average 18.27 5484.74 12.8 6.17 25.8 0.021 0.190 < 0.020 < 0.030 2.931 2.642 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-11 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/09/2016 71 96.0 2.62 6.28 < 1 < 1 05/24/2016 68 86.7 2.62 4.00 < 1 < 1 08/16/2016 55 70.5 1.25 3.45 < 1 < 1 11/30/2016 83 113.0 2.59 4.14 < 1 < 1 Maximum 83 113.0 2.62 6.28 < 1 < 1 Minimum 55 70.5 1.25 3.45 < 1 < 1 Average 69 91.6 2.27 4.47 < 1 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-11 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2009 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 09 19.6 5485.4 11.4 6.10 40 36 1.23 0.026 < 0.050 < 0.010 0.258 0.290 10 17.2 5483.6 11.4 5.95 35 0.031 < 0.050 < 0.010 0.422 0.472 11 23.7 5479.3 9.7 6.14 41 3.60 0.016 0.117 < 0.010 0.366 0.450 12 27.1 5475.9 11.1 6.60 32 1.50 0.123 0.207 0.021 < 0.010 0.554 0.771 13 23.2 5479.8 11.3 6.24 30 0.023 0.053 0.023 < 0.010 1.767 1.647 14 20.7 5482.3 13.6 6.27 28 0.029 0.138 0.032 < 0.025 2.773 2.873 15 24.9 5478.1 9.7 6.29 28 0.018 0.050 < 0.020 < 0.020 1.278 1.135 16 18.3 5484.7 12.8 6.17 26 0.021 0.190 < 0.020 < 0.030 2.931 2.642 Maximum 27.1 5485.4 13.6 6.60 41 36 3.60 0.123 0.207 0.032 0.030 2.931 2.873 Minimum 17.2 5475.9 9.7 5.95 26 36 1.23 0.016 0.050 0.020 < 0.010 0.258 0.290 Average 21.8 5481.1 11.3 6.22 33 36 2.11 0.036 0.107 0.023 0.016 1.293 1.285 #Tests 8 8 8 8 8 1 3 8 8 5 8 8 8 Site: ACMW-11 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 09 68 93 1.63 < 5 1.85 < 1.0 < 1.0 First year of sampling 10 63 83 1.45 2.39 < 1.0 < 1.0 11 67 90 1.71 2.37 < 1.0 < 1.0 12 140 79 1.71 2.60 < 1.0 < 1.0 13 69 83 1.95 3.06 < 1.0 < 1.0 14 75 94 3.17 4.55 < 1.0 < 1.0 15 66 82 1.95 4.40 1.0 < 1.0 16 69 92 2.27 4.47 < 1.0 < 1.0 Maximum 140 94 3.17 5 4.55 < 1.0 < 1.0 Minimum 63 79 1.45 < 5 1.85 < 1.0 < 1.0 Average 77 87 1.98 5 3.21 < 1.0 < 1.0 #Tests 8 8 8 1 8 0 8 8 0 Site ACMW-11 Nitrate-Nitrogen &Water Level Chlorides 5 5495 50 4 5490 40 x 3 5485 m 30 J J E ;^ .d E 2 1 5480 0 20 1 5475 10 - 05470 0 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 t Nitrate —F Water Level —*-=Chloride —Linear(Chloride) Total Dissolved Solids (TDS) Total.Phosphorus 500 0.4 400 0.3 300 J - J rn - o) 0.2 E - E 200 0 100 .1 _ __.______4___4„/IN.,,F„....______•______. 00.0 - - 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 —*--TDS —Linear(TDS) --e—Total P —Linear(Total P) • • Annual Metals Report ACMW-11 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-11 07/15/2009 8.8 2.5 1.3 4.5 <20 <2 25 <1 <0.5 <0.5 <1 <2 07/08/2010 7.7 2.4 1.3 4.4 600 <1 29 <1 <0.5 <0.5 <1 <2 07/13/2011 8.64 2.58 1.25 4.67 258 <1 27.2 <1 <0.5 <0.5 <1 <2 07/26/2012 7.27 1.92 1.28 4.5 49.8 <1 21.6 <1 <10 <0.5 <1 <20 08/01/2014 12.1 3.39 1.78 6.54 <20 <1 39.8 <1 <0.5 <0.5 <1 <2 06/11/2015 8.62 2.60 1.31 4.71 188 1.59 22.3 <1 <0.5 <0.5 <1 <2 08/16/2016 6.20 1.77 1.28 4.91 145 <1 20.7 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-11 07/15/2009 <50 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/08/2010 840 <0.2 19 <2 <5 <0.5 <5 <1 <1 <3 ' <20 07/13/2011 210 <0.2 6.52 <2 <5 <0.5 <5 <1 <1 <3 <20 07/26/2012 80.5 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 08/01/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 06/11/2015 253 <0.2 4.40 <2 <5 <0.5 <5 <1 <1 <3 <20 08/16/2016 123 <0.2 3.19 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 02/03/2016 29.23 5495.81 12.1 6.62 52.3 0.042 < 0.050 < 0.020 < 0.010 0.538 0.532 05/11/2016 22.42 5502.62 12.2 6.56 51.0 0.047 < 0.050 < 0.020 < 0.010 0.461 0.490 08/10/2016 29.40 5495.64 12.2 6.62 49.3 0.036 < 0.050 < 0.020 < 0.010 0.437 0.402 11/15/2016 30.47 5494.57 11.4 6.41 49.8 0.037 < 0.100 < 0.020 < 0.010 0.435 0.335 Maximum 30.47 5502.62 12.2 6.62 52.3 0.047 < 0.100 < 0.020 < 0.010 0.538 0.532 Minimum 22.42 5494.57 11.4 6.41 49.3 0.036 < 0.050 < 0.020 < 0.010 0.435 0.335 Average 27.88 5497.16 12.0 6.55 50.6 0.041 < 0.063 < 0.020 < 0.010 0.468 0.440 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 02/03/2016 97 113 . 1.62 2.60 < 1 < 1 05/11/2016 100 109 1.75 2.66 < 1 < 1 08/10/2016 102 109 1.67 2.59 < 1 < 1 11/15/2016 116 114 1.75 2.75 < 1 < 1 Maximum 116 114 1.75 2.75 < 1 < 1 Minimum 97 109 1.62 2.59 < 1 < 1 Average 104 111 1.70 2.65 < 1 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2009 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 09 30.9 5494.1 12.3 6.82 64 60 0.30 0.034 < 0.050 < 0.010 0.774 0.804 10 30.7 5492.0 11.9 6.59 61 0.034 < 0.050 < 0.010 0.713 0.763 11 33.1 5491.9 11.5 6.70 57 0.21 0.032 < 0.058 < 0.010 0.602 0.669 12 34.9 5490.1 11.1 6.89 52 0.04 0.036 0.081 0.024 < 0.010 0.588 0.678 13 30.9 5494.2 11.5 6.83 53 0.053 0.232 0.023 < 0.010 0.553 0.758 14 30.8 5494.2 11.9 6.81 51 0.034 0.072 0.025 < 0.010 0.557 0.585 15 33.9 5491.1 12.1 6.63 50 0.041 < 0.050 < 0.020 < 0.010 0.558 0.551 16 27.9 5497.2 12.0 6.55 51 0.041 < 0.063 < 0.020 < 0.010 0.468 0.440 Maximum 34.9 5497.2 12.3 6.89 64 60 0.30 0.053 < 0.232 0.025 < 0.010 0.774 0.804 Minimum 27.9 5490.1 11.1 6.55 50 60 0.04 0.032 < 0.050 0.020 < 0.010 0.468 0.440 Average 31.6 5493.1 11.8 6.73 55 60 0.18 0.038 < 0.082 0.022 < 0.010 0.602 0.656 #Tests 8 8 8 8 8 1 3 8 8 5 8 8 8 Site: ACMW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 1989 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E. coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 09 114 142 1.89 7 4.26 < 1.0 < 1.0 First year of sampling 10 108 138 1.64 3.90 < 1.0 < 1.0 11 103 130 1.53 3.50 < 1.0 < 1.0 12 107 119 1.53 3.29 < 1.0 < 1.0 13 105 119 1.48 3.14 < 1.0 < 1.0 14 99 115 1.58 2.92 < 1.0 < 1.0 15 100 119 1.63 2.70 < 1.0 < 1.0 16 104 111 1.70 2.65 < 1.0 < 1.0 Maximum 114 142 1.89 7 4.26 < 1.0 < 1.0 Minimum 99 111 1.48 7 2.65 < 1.0 < 1.0 Average 105 124 1.62 7 3.29 < 1.0 < 1.0 #Tests 8 8 8 1 8 0 8 8 0 Site ACMW-12 Nitrate-Nitrogen &Water Level Chlorides 5 5505 50 - 4 5500 40 3 5495 d 30 JJ 01 O7 E 2 ` 5490 co 20 1 5485 10 0 5480 0 09 10 11 12 13 14 . 15 16 09 10 11 12 13 14 15 16 —0—Nitrate —f—Water Level —0—Chloride Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 400 0.3 300 J - J rn co 0.2 _ E - E 200 0.1 100 -' 0 0.0 , 09 10 11 12 13 14 15 16 09 10 11 12 13 14 15 16 TDS —0—Total P Annual Metals Report ACMW-12 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-12 06/18/2009 15.5 4.04 1.9 5.75 22 <2 21 <1 <10 <0.5 <1 <20 07/08/2010 16 4 1.4 4.9 <20 <1 21 <1 <0.5 <0.5 <1 <2 07/13/2011 15 3.81 1.56 4.79 <20 <1 19.2 <1 <0.5 <0.5 <1 <2 07/26/2012 12.9 3.27 1.51 4.56 <20 <1 19.4 <1 <10 <0.5 <1 <20 07/10/2013 13.0 3.25 1.37 4.46 07/09/2014 13.5 3.66 1.59 4.82 <20 <1 23.0 <1 <0.5 <0.5 <1 <2 08/19/2015 12.7 3.62 1.28 4.58 <20 <1 22.1 _ <1 <0.5 <0.5 <1 <2 08/10/2016 12.1 3.52 1.32 4.52 <20 <1 22.3 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-12 06/18/2009 81.7 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 07/08/2010 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/13/2011 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 07/26/2012 <50 <0.2 <20 <2 ,<5 <2.5 <5 <1 <1 <3 <10 07/09/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 08/19/2015 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 08/10/2016 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals,reported as ug/L. 1 Site: ACMW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 02/03/2016 9.91 5544.64 9.0 6.20 43.2 0.029 0.066 < 0.020 < 0.010 0.050 0.116 05/11/2016 9.53 5545.02 10.1 6.01 38.2 0.028 0.119 < 0.020 < 0.010 0.080 0.199 08/10/2016 12.34 5542.21 12.0 6.17 36.6 0.023 0.063 < 0.020 < 0.010 0.075 0.138 11/15/2016 11.23 5543.32 10.6 5.89 38.4 0.025 < 0.100 < 0.020 < 0.010 0.066 0.164 Maximum 12.34 5545.02 12.0 6.20 43.2 0.029 0.119 < 0.020 < 0.010 0.080 0.199 Minimum 9.53 5542.21 9.0 5.89 36.6 0.023 < 0.063 < 0.020 < 0.010 0.050 0.116 Average 10.75 5543.80 10.4 6.07 39.1 0.026 0.087 < 0.020 < 0.010 0.068 0.154 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 02/03/2016 102 90.4 1.46 2.20 < 1 < 1 05/11/2016 127 88.6 2.02 2.16 < 1 < 1 08/10/2016 99 79.6 1.58 2.17 < 1 < 1 11/15/2016 111 84.5 1.34 2.68 < 1 < 1 Maximum 127 90.4 2.02 2.68 < 1 < 1 Minimum 99 79.6 1.34 2.16 < 1 < 1 Average 110 85.8 1.60 2.30 < 1 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 10.9 5543.6 10.6 6.15 42 54.80 0.550 0.089 0.023 < 0.010 0.113 0.212 13, 10.4 5544.1 8.7 6.45 40 0.658 0.135 0.027 0.014 0.092 0.223 14 11.3 5543.3 10.2 6.38 37 0.419 0.098 0.027 < 0.010 0.045 0.135 15 12.5 5542.1 10.7 6.21 38 0.025 0.068 < 0.020 < 0.010 0.050 0.115 16 10.8 5543.8 10.4 6.07 39 0.026 0.087 < 0.020 < 0.010 0.068 0.154 Maximum 12.5 5544.1 10.7 6.45 42 54.80 0.658 0.135 0.027 0.014 0.113 0.223 Minimum 10.4 5542.1 8.7 6.07 37 54.80 0.025 0.068 0.020 < 0.010 0.045 0.115 Average 11.2 5543.4 10.1 6.25 39 54.80 0.336 0.095 0.023 0.011 0.073 0.168 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E. coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 109 90 1.40 2.24 1 < 1.0 First year of sampling 13 145 86 1.38 2.62 < 1 < 1 14 98 80 1.36 2.23 < 1 < 1 15 103 88 1.42 2.06 < 1 < 1 16 110 86 1.60 2.30 < 1 < 1 Maximum 145 90 1.60 2.62 1 < 1.0 Minimum 98 80 1.36 2.06 1 < 1.0 Average 113 86 1.43 2.29 1 < 1.0 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-13 Nitrate-Nitrogen &Water Level Chlorides 2.5 5550 50 2.0 5545 40 1.5 5540 > 30 J J J E . a`, E 1.0 5535 3 20 0.55530 10 0.0 4 • •• •• 5525 0 e • --. • • • . 12 13 14 15 16 12 13 14 15 16 —0—Nitrate —0—Water Level —.--Chloride —Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 1.0 — 400 0.8 300 0.6 J th - a) E - E - 200 0.4 100 ♦ sr_______. 0.2 • 00.0 • 12 13 14 15 16 12 13 14 15 16 —*--TDS —Linear(TDS) —s--Total P —Linear(Total P) Annual Metals Report ACMW-13 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-13 06/19/2012 9.07 2.9 2.3 5.36 3500 <1 55.9 <1 <10 <0.5 1.24 <20 07/10/2013 4.85 6.47 6.92 5.70 07/09/2014 7.80 2.71 2.08 4.90 387 1.43 34.5 <1 <0.5 <0.5 1.01 <2 08/19/2015 9.57 6.44 5.62 5.62 13000 1.92 176 <1 <0.5 <0.5 11.5 11.8 08/10/2016 8.22 3.08 2.43 4.89 3810 <1 62.4 <1 <0.5 <0.5 3.98 4.34 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-13 06/19/2012 3840 <0.2 106 <2 <5 <2.5 <5 <1 <1 6.03 18.5 07/09/2014 3610 <0.2 30.6 <2 <5 <0.5 <5 <1 <1 <3 <20 08/19/2015 22700 <0.2 497 <2 5.93 5.30 <5 <1 <1 29.3 48.2 08/10/2016 5260 <0.2 110 <2 <5 1.26 <5 <1 <1 8.06 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-14 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/09/2016 17.03 5530.17 10.9 5.69 26.7 0.023 < 0.050 < 0.020 < 0.010 2.360 2.240 05/24/2016 17.18 5530.02 9.8 6.15 25.7 0.020 0.190 < 0.020 < 0.040 2.320 2.510 08/16/2016 20.14 5527.06 12.9 6.19 34.0 0.025 0.093 < 0.020 < 0.040 0.795 0.888 11/30/2016 19.14 5528.06 12.3 6.03 35.7 0.017 < 0.110 < 0.020 < 0.020 0.563 0.601 Maximum 20.14 5530.17 12.9 6.19 35.7 0.025 0.190 < 0.020 < 0.040 2.360 2.510 Minimum 17.03 5527.06 9.8 5.69 25.7 0.017 < 0.050 < 0.020 < 0.010 0.563 0.601 Average 18.37 5528.83 11.5 6.02 30.5 0.021 0.111 < 0.020 < 0.028 1.510 1.560 #Tests 4 4 4 4 4 0 0 4 4 • 4 4 4 4 Site: ACMW-14 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E.coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/09/2016 82 82.1 1.99 2.72 < 1 < 1 05/24/2016 82 88.3 2.32 2.73 < 1 < 1 08/16/2016 71 82.0 1.65 2.84 < 1 < 1 11/30/2016 72 91.2 1.23 3.70 < 1 < 1 Maximum 82 91.2 2.32 3.70 < 1 < 1 Minimum 71 82.0 1.23 2.72 < 1 < 1 Average 77 85.9 1.80 3.00 < 1 < 1 _ #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-14 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 19.3 5527.9 10.8 6.12 42 0.75 0.042 0.054 0.023 < 0.010 0.475 0.539 13 18.2 5529.0 10.8 6.20 37 0.056 0.052 0.025 < 0.012 0.706 0.698 14 19.5 5527.7 11.2 6.29 37 0.044 0.078 0.026 < 0.010 0.429 0.497 15 21.0 5526.2 11.4 6.23 38 0.042 < 0.050 < 0.020 < 0.010 0.565 0.568 16 18.4 5528.8 11.5 6.02 31 0.021 0.111 < 0.020 < 0.028 1.510 1.560 Maximum 21.0 5529.0 11.5 6.29 42 0.75 0.056 0.111 0.026 0.028 1.510 1.560 Minimum 18.2 5526.2 10.8 6.02 31 0.75 0.021 0.050 0.020 < 0.010 0.429 0.497 Average 19.3 5527.9 11.1 6.17 37 0.75 0.041 0.069 0.023 0.014 0.737 0.772 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-14 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 77 94 1.25 1.95 1 < 1 First year of sampling 13 71 85 1.45 1.73 < 1 < 1 14 69 84 1.33 2.70 < 1 < 1 15 74 93 1.20 2.37 < 1 < 1 16 77 86 1.80 3.00 < 1 < 1 Maximum 77 94 1.80 3.00 1 < 1 Minimum 69 84 1.20 1.73 1 < 1 Average 74 88 1.41 2.35 1 < 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-14 Nitrate-Nitrogen &Water Level Chlorides 5 5545 50 4 5540 40 3 5535 2 30 a 1 E a 2 5530 3 20 1 5525 10 0 - 5520 0 • • 12 13 14 15 16 12 13 14 15 16 t Nitrate --0—Water Level — Chloride —Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 - 400 • 0.3 300 J J rn - m 0.2 E - E 200 0.1 100 0 0.0 12 13 14 15 16 12 13 14 15 16 — TDS —Linear(TDS) —.—Total P —Linear(Total P) Annual Metals Report ACMW-14 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-14 06/19/2012 9.04 2.52 0.545 5.82 23.9 <1 41.8 <1 <10 <0.5 <1 <20 08/01/2014 9.11 2.87 <1 5.82 76.7 1.58 47.7 <1 <0.5 <0.5 <1 <2 06/11/2015 8.98 2.80 <1 6.15 98.7 1.67 43.8 <1 <0.5 <0.5 <1 <2 08/16/2016 7.86 2.53 <1 5.03 181 <1 44.8 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-14 06/19/2012 62.4 <0.2 <20 <2 <5 <2.5 <5 (' <1 <1 <3 <10 08/01/2014- 268 <0.2 5.17 <2 <5 <0.5 <5 <1 <1 <3 <20 06/11/2015 182 <0.2 5.27 <2 <5 <0.5 <5 <1 <1 <3 <20 08/16/2016 216 <0.2 4.82 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. I / Site: ACMW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P _ TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/15/2016 25.63 5474.97 12.2 5.96 27.3 0.033 < 0.050 < 0.020 < 0.030 2.98 2.96 05/17/2016 6.69 5493.91 10.8 5.91 16.3 0.020 0.800 < 0.020 < 0.040 13.90 14.70 08/30/2016 12.90 5487.70 16.9 5.99 30.2 0.028 0.160 < 0.020 < 0.100 4.36 4.52 12/21/2016 17.81 5482.79 14.4 5.90 25.3 0.031 0.330 < 0.020 < 0.060 3.18 3.51 Maximum 25.63 5493.91 16.9 5.99 30.2 0.033 0.800 < 0.020 < 0.100 13.90 14.70 Minimum 6.69 5474.97 10.8 5.90 16.3 0.020 < 0.050 < 0.020 < 0.030 2.98 2.96 Average 15.76 5484.84 13.6 5.94 24.8 0.028 0.335 < 0.020 < 0.058 6.11 6.42 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/15/2016 76 89.6 2.36 2.70 < _ 1 < 1 05/17/2016 156 172.0 < 2.00 < 2.00 1 < 1 08/30/2016 88 103.0 < 5.00 < 5.00 9.6 1 12/21/2016 75 92.6 < 3.00 < 3.00 < 1 < 1 Maximum 156 172.0 5.00 5.00 9.6 < 1 Minimum 75 89.6 2.00 < 2.00 < 1 < 1 Average 99 114.3 3.09 3.18 3 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 23.6 5477.0 12.3 5.97 31 4.60 0.042 0.055 0.024 < 0.010 0.659 0.724 13 23.7 5476.9 12.2 6.12 28 0.042 0.088 0.032 < 0.012 0.934 1.018 14 25.6 5475.0 13.1 6.11 27 0.037 0.055 0.022 < 0.013 1.160 1.185 15 27.8 5472.8 12.7 6.06 27 0.024 0.059 < 0.020 < 0.017 1.557 1.610 16 15.8 5484.8 13.6 5.94 25 0.028 0.335 < 0.020 < 0.058 6.105 6.423 Maximum 27.8 5484.8 13.6 6.12 31 4.60 0.042 0.335 0.032 0.058 6.105 6.423 Minimum 15.8 5472.8 12.2 5.94 25 4.60 0.024 < 0.055 0.020 < 0.010 0.659 0.724 Average 23.3 5477.3 12.8 6.04 28 4.60 0.035 0.118 0.024 0.022 2.083 2.192 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coll E. coil Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 65 73 1.46 1.82 < 1 < 1 First year of sampling 13 65 72 1.62 1.78 < 1 < 1 14 61 72 1.58 1.82 < 1 < 1 15 68 86 1.64 1.81 < 1 < 1 16 99 114 3.09 3.18 3 < 1 Maximum 99 114 3.09 3.18 < 3 < 1 Minimum 61 72 1.46 1.78 < 1 < 1 , Average 72 84 1.88 2.08 < 1 < 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-15 Nitrate-Nitrogen &Water Level Chlorides 10 5490 20 8 5485 - 15 10 6 5480 m o d J � rn - . d E 5 4 5475 - 2 - - 5470 • 0 - 5465 0 12 13 14 15 16 12 13 14 15 16 -t Nitrate —0—Water Level t Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 400 - 0.3 300 J - J -en - 0 0.2 E - E 200 0.1 100 — ,...------4 • 0 r 0.0 12 13 14 15 16 12 13 14 15 16 — TDS Linear(TDS) Total P —Linear(Total P) Annual Metals Report ACMW-15 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-15 06/19/2012 7.63 1.72 1.17 4.38 561 <1 38.2 <1 <10 <0.5 <1 <20 06/12/2013 6.41 1.59 1.20 4.12 06/05/2014 7.08 1.67 1.15 4.44 69.8 <1 30.6 <1 <0.5 <0.5 <1 <2 06/02/2015 7.49 1.75 1.08 4.24 35.0 <1 34.0 <1 <0.5 <0.5 <1 <2 08/30/2016 11.1 2.56 1.59 5.04 22.3 <1 42.4 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-15 06/19/2012 376 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/05/2014 67.6 <0.2 3.52 <2 <5 <0.5 <5 <1 <1 <3 <20 06/02/2015 46.2 <0.2 2.15 <2 <5 <0.5 <5 <1 <1 <3 <20 08/30/2016 21.3 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/15/2016 16.80 5467.73 11.5 6.30 54.4 0.063 0.160 < 0.020 < 0.030 1.100 1.260 05/17/2016 8.72 5475.81 10.4 6.23 21.5 0.044 1.700 < 0.020 < 0.030 17.900 19.600 08/30/2016 10.22 5474.31 16.2 6.30 44.6 0.045 0.490 < 0.020 < 0.100 6.140 6.630 12/21/2016 11.36 5473.17 12.8 6.22 48.8 0.050 0.380 < 0.020 < 0.060 3.380 3.760 Maximum 16.80 5475.81 16.2 6.30 54.4 0.063 1.700 < 0.020 < 0.100 17.900 19.600 Minimum 8.72 5467.73 10.4 6.22 21.5 0.044 < 0.160 < 0.020 < 0.030 1.100 1.260 Average 11.78 5472.76 12.7 6.26 42.3 0.051 0.683 < 0.020 < 0.055 7.130 7.813 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/15/2016 99 122 2.85 2.21 < 1 < 1 05/17/2016 199 236 3.61 5.74 < 1 < 1 08/30/2016 124 152 < 5.00 < 5.00 24.3 < 1 12/21/2016 110 143 < 3.00 < 3.00 8.5 < 1 Maximum 199 236 5.00 5.74 24.3 < 1 Minimum 99 122 2.85 2.21 < 1 < 1 Average 133 163 3.62 3.99 9 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 17.1 5467.4 11.6 6.24 66 5.60 0.156 0.061 0.024 < 0.010 0.403 0.474 13 16.6 5468.0 11.7 6.43 75 0.118 0.069 0.029 < 0.012 0.310 0.356 14 15.2 5469.3 11.9 6.41 52 0.071 0.188 0.023 < 0.010 2.128 2.290 15 18.0 5466.6 12.1 6.41 53 0.061 0.060 < 0.020 < 0.013 0.776 0.795 16 11.8 5472.8 12.7 6.26 42 0.051 0.683 < 0.020 < 0.055 7.130 7.813 Maximum 18.0 5472.8 12.7 6.43 75 5.60 0.156 0.683 0.029 0.055 7.130 7.813 Minimum 11.8 5466.6 11.6 6.24 42 5.60 0.051 < 0.060 0.020 < 0.010 0.310 0.356 Average 15.7 5468.8 12.0 6.35 58 5.60 0.091 0.212 0.023 - 0.020 2.149 2.345 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 116 135 3.46 1.33 2 < 1 First year of sampling 13 128 156 3.55 0.82 1 < 1 14 109 132 3.64 1.26 1 < 1 15 98 128 2.38 1.32 1 < 1 16 133 163 3.62 3.99 9 < 1 Maximum 133 163 3.64 3.99 9 < 1 Minimum 98 128 2.38 0.82 < 1 < 1 Average 117 143 3.33 1.74 3 < 1 #Tests 5 5 5 0 5 0 5 5 , 0 Site ACMW-16 Nitrate-Nitrogen &Water Level Chlorides 10 5485 40 8 — 5480 30 6 5475 v -J w J rn - a 20 E d E = 4 - 5470 10 2 5465 0 5460 0 - 12 13 14 15 16 12 13 14 15 16 --+—Nitrate t Water Level —4—Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 - 400 0.3 - 300 J - J rn rn 0.2 - E E 200 100 = 0.1 0 0.0 12 13 14 15 16 12 13 14 15 16 — TDS —Linear(TDS) +Total P —Linear(Total P) Annual Metals Report ACMW-16 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd , Cr Cu ACMW-16 06/19/2012 14.1 3.79 1.4 7.11 849 <1 39.8 <1 <10 <0.5 <1 <20 06/12/2013 16.1 4.15 1.21 7.97 06/05/2014 14.2 4.33 1.68 7.01 109 1.88 42.0 <1 <0.5 <0.5 <1 <2 06/02/2015 13.2 4.00 1.21 6.89 212 2.10 27.6 <1 <0.5 <0.5 <1 <2 08/30/2016 15.0 4.12 3.83 7.50 62.7 <1 80.0 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-16 06/19/2012 830 <0.2 22.5 <2 <5 <2.5 , <5 <1 <1 <3 <10 06/05/2014 466 <0.2 3.88 <2 <5 <0.5 <5 <1 <1 <3 <20 06/02/2015 41.6 <0.2 4.35 <2 <5 <0.5 <5 <1 <1 <3 <20 08/30/2016 56.4 <0.2 2.06 <2 <5 <0.5 <5 - <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-17 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/15/2016 12.42 5492.50 11.7 6.29 37.4 0.025 < 0.050 0.236 < 0.030 1.020 1.030 05/17/2016 6.17 5498.75 12.1 6.23 32.5 0.026 < 0.100 < 0.020 < 0.030 1.540 1.620 08/30/2016 12.83 5492.09 13.7 6.14 33.2 0.026 < 0.120 < 0.020 < 0.030 0.961 0.945 12/21/2016 12.62 5492.30 11.2 6.23 35.7 0.029 < 0.150 < 0.020 < 0.010 0.611 0.531 Maximum 12.83 5498.75 13.7 6.29 37.4 0.029 < 0.150 0.236 < 0.030 1.540 1.620 Minimum 6.17 5492.09 11.2 6.14 32.5 0.025 < 0.050 < 0.020 < 0.010 0.611 0.531 Average 11.01 5493.91 12.2 6.22 34.7 0.027 < 0.105 < 0.074 < 0.025 1.033 1.032 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-17 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/15/2016 79 90 1.86 2.56 < 1 < 1 05/17/2016 78 97 1.67 2.97 < 1 < 1 08/30/2016 79 83 < 1.50 2.96 < 1 < 1 12/21/2016 71 93 1.90 3.51 < 1 < 1 Maximum 79 97 1.90 3.51 < 1 < 1 Minimum 71 83 < 1.50 2.56 < 1 < 1 Average 77 91 1.73 3.00 < 1 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-17 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 17.5 5487.4 11.8 6.20 41 2.80 0.031 < 0.050 0.023 < 0.017 1.449 1.516 13 15.2 5489.7 10.9 6.40 39 0.054 < 0.055 0.030 < 0.018 1.395 1.429 14 11.5 5493.4 11.9 6.38 36 0.037 < 0.050 0.022 < 0.010 0.864 0.880 15 17.3 5487.6 11.0 6.30 36 0.025 < 0.050 < 0.020 < 0.013 0.450 0.455 16 11.0 5493.9 12.2 6.22 35 0.027 < 0.105 < 0.074 < 0.025 1.033 1.032 Maximum 17.5 5493.9 12.2 6.40 41 2.80 0.054 0.105 0:074 0.025 1.449 1.516 Minimum 11.0 5487.4 10.9 6.20 35 2.80 0.025 < 0.050 0.020 < 0.010 0.450 0.455 Average 14.5 5490.4 11.6 6.30 37 2.80 0.035 0.062 0.034 0.017 1.038 1.062 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-17 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E. coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 78 105 2.25 2.26 1 < 1 First year of sampling 13 79 100 2.17 2.44 1 < 1 14 72 87 1.65 2.79 1 < 1 15 70 90 1.59 2.82 1 < 1 16 77 91 1.73 3.00 < 1 < 1 Maximum 79 105 2.25 3.00 1 < 1 Minimum 70 87 1.59 < 2.26 < 1 < 1 Average 75 95 1.88 2.66 1 < 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-17 Nitrate-Nitrogen &Water Level Chlorides 5 5500 40 4 1 5495 30 _ x 3 5490 m , J a rn J m 20 E 2 5485 1 • 5480 10 0 5475 0 12 13 14 15 16 12 13 14 15 16 —•—Nitrate —a—Water Level —•—Chloride —Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 400 0.3 300 J - J rn a 0.2 - • 200 0.1 - 100 0 0.0 12 13 14 15 16 12 13 14 15 16 —•—TDS —Linear(TDS) — Total P —Linear(Total P) Annual Metals Report ACMW-17 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-17 06/19/2012 10.3 2.77 1.59 5.56 199 <1 28 <1 <10 <0.5 <1 <20 06/12/2013 9.15 2.25 1.65 5.25 06/05/2014 8.40 2.53 1.35 4.72 86.2 1.12 24.1 <1 <0.5 <0.5 <1 <2 06/02/2015 7.69 2.23 1.06 4.28 27.8 <1 20.8 <1 <0.5 <0.5 <1 <2 08/30/2016 8.50 2.36 1.54 4.99 <20 <1 23.4 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-17 06/19/2012 149 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/05/2014 327 <0.2 6.29 <2 <5 <0.5 <5 <1 <1 <3 <20 06/02/2015 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 08/30/2016 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-18 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/15/2016 9.33 5461.23 11.6 6.43 32.3 0.028 0.130 < 0.020 < 0.030 2.360 2.490 05/17/2016 6.56 5464.00 12.6 6.30 24.9 0.028 0.410 < 0.020 < 0.030 5.570 5.980 08/30/2016 8.44 5462.12 13.8 6.48 27.8 0.029 0.120 < 0.020 < 0.050 1.680 1.800 12/21/2016 8.55 5462.01 11.4 6.37 34.3 0.036 < 0.150 < 0.020 < 0.030 0.571 0.569 Maximum 9.33 5464.00 13.8 6.48 34.3 0.036 0.410 < 0.020 < 0.050 5.570 5.980 Minimum 6.56 5461.23 11.4 6.30 24.9 0.028 0.120 < 0.020 < 0.030 0.571 0.569 Average 8.22 5462.34 12.4 6.40 29.8 0.030 0.203 < 0.020 < 0.035 2.545 2.710 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-18 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep _ Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/15/2016 73 94.1 1.84 2.49 < 1 < 1 05/17/2016 94 108.0 1.70 2.74 < 1 < 1 08/30/2016 58 74.9 < 2.50 < 2.50 12.2 < 1 12/21/2016 64 86.1 < 1.50 2.68 < 1 < 1 Maximum 94 108.0 2.50 2.74 12.2 < 1 Minimum 58 74.9 1.50 2.49 < 1 < 1 Average 72 90.8 1.89 2.60 4 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-18 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 11.3 5459.2 12.6 6.18 37 5.20 0.037 0.135 0.023 < 0.010 0.940 1.085 13 10.2 5460.3 11.9 6.51 36 0.049 0.052 0.028 < 0.015 1.023 1.041 14 8.5 5462.1 12.9 6.48 33 0.031 0.061 0.021 < 0.015 1.500 1.558 15 10.3 5460.3 12.9 6.43 37 0.031 < 0.050 < 0.020 < 0.013 0.401 0.413 16 8.2 5462.3 12.4 6.40 30 0.030 0.203 < 0.020 < 0.035 2.545 2.710 Maximum 11.3 5462.3 12.9 6.51 37 5.20 0.049 0.203 0.028 0.035 2.545 2.710 Minimum 8.2 5459.2 11.9 6.18 30 5.20 0.030 0.050_ 0.020 < 0.010 0.401 0.413 Average 9.7 5460.8 12.5 6.40 34 5.20 0.036 0.100 0.022 0.018 1.282 1.361 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-18 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E. coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 64 86 1.47 2.23 2 < 1 First year of sampling 13 67 89 1.87 2.27 < 1 < 1 14 67 85 1.62 2.45 1 < 1 15 63 91 1.49 2.50 3 < 1 16 72 91 1.89 2.60 4 < 1 Maximum 72 91 1.89 2.60 4 < 1 Minimum 63 85 1.47 2.23 1 < 1 Average 67 88 1.67 2.41 2 < 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-18 • Nitrate-Nitrogen &Water Level Chlorides 5 5475 40 4 5470 30 3 5465 d J y J 13) -' rn 20 E d E 2 'J 5460 10 1 5455 0 - 5450 0 - 12 13 14 15 16 12 13 14 15 16 —0—Nitrate —E -Water Level t Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 e 0.4 - 400 0.3 300 J J rn - rn 0.2 E E 200 0.1 100 0 0.0 12 13 14 15 16 12 13 14 15 16 —.—TDS —Linear(TDS) Total P —Linear(Total P) Annual Metals Report ACMW-18 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-18 06/19/2012 9.3 2.38 1.05 3.74 433 <1 22 <1 <10 <0.5 <1 <20 06/12/2013 9.07 2.51 0.984 3.72 06/05/2014 10.8 2.87 1.15 4.39 <20 <1 20.3 <1 <0.5 <0.5 <1 <2 06/02/2015 10.1 3.35 1.61 4.15 2450 2.12 44.0 <1 <0.5 <0.5 5.22 2.66 08/30/2016 8.37 2.19 1.08 3.69-- 36.3 <1 16.6 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni. Pb Se ,Sb TI V Zn ACMW-18 06/19/2012 321 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 <10 06/05/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 06/02/2015 3580 <0.2 76.2 1.95 <5 1.59 <5 <1 <1 5.49 <20 08/30/2016 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. Site: ACMW-19 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 03/15/2016 8.02 5409.23 12.2 6.76 99.6 0.088 0.063 0.047 < 0.030 < 0.050 0.063 05/17/2016 8.16 5409.09 11.2 6.72 102.0 0.095 0.150 0.051 < 0.010 < 0.010 0.150 08/30/2016 7.03 5410.22 14.9 6.82 109.0 0.113 0.164 0.052 < 0.010 < 0.010 0.164 12/21/2016 7.39 5409.86 12.5 6.69 110.0 0.113 0.177 0.050 < 0.010 < 0.010 0.177 Maximum 8.16 5410.22 14.9 6.82 110.0 0.113 0.177 0.052 < 0.030 < 0.050 0.177 Minimum 7.03 5409.09 11.2 6.69 99.6 0.088 0.063 0.047 < 0.010 < 0.010 0.063 Average 7.65 5409.60 12.7 6.75 105.2 0.102 0.139 0.050 < 0.015 < 0.020 0.139 #Tests 4 4 4 4 4 0 0 4 4 4 4 4 4 Site: ACMW-19 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Coli E. coli Fecal TDS EC Chloride COD SO4 Color Chromo Chromo Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 03/15/2016 128 198 3.56 2.35 < 1 < 1 05/17/2016 138 209 3.66 3.17 < 1 < 1 08/30/2016 144 217 3.26 2.90 13.2 < 1 12/21/2016 142 226 3.40 3.23 7.4 < 1 Maximum 144 226 3.66 3.23 13.2 < 1 Minimum 128 198 3.26 2.35 < 1 < 1 Average 138 213 3.47 , 2.91 6 < 1 #Tests 4 4 4 0 4 0 4 4 0 Site: ACMW-19 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From: 2012 To: 2016 Depth Water Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year ft Level C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 12 7.4 5409.9 12.9 6.75 106 6.70 0.092 0.106 0.050 < 0.010 0.010 0.126 13 7.1 5410.2 12.4 6.88 105 0.129 0.159 0.067 0.012 < 0.009 0.160 14 7.7 5409.6 12.5 6.80 129 0.111 0.121 0.041 0.010 < 0.010 0.123 15 8.3 5409.0 13.1 6.84 93 0.104 0.126 0.050 < 0.010 < 0.010 0.128 16 7.7 5409.6 12.7 6.75 105 0.102 0.139 0.050 < 0.015 < 0.020 0.139 Maximum 8.3 5410.2 13.1 6.88 129 6.70 0.129 0.159 0.067 0.015 0.020 0.160 Minimum 7.1 5409.0 12.4 6.75 93 6.70 0.092 < 0.106 0.041 < 0.010 0.009 0.123 Average 7.6 5409.6 12.7 6.80 108 6.70 0.108 0.130 0.052 0.011 0.012 0.135 #Tests 5 5 5 5 5 0 1 5 5 5 5 5 5 Site: ACMW-19 SOUTH TAHOE PUBLIC UTILITY DISTRICT PINE COUNTY GROUNDWATER QUALITY DA From 2012 To: 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E. coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 12 144 221 2.81 2.87 2 < 1 First year of sampling 13 154 241 2.97 1.62 1 < 1 14 152 253 2.47 2.00 • 3 < 1 15 120 192 2.46 2.29 < 1 < 1 16 138 213 3.47 2.91 6 < 1 Maximum 154 253 3.47 2.91 6 < 1 Minimum 120 192 2.46 1.62 1 < 1 Average 141 224 2.84 2.34 3 < 1 #Tests 5 5 5 0 5 0 5 5 0 Site ACMW-19 Nitrate-Nitrogen &Water Level Chlorides 1.00 5425 40 0.80 5420 30 0.60 5415 d J > J J lib 20 E m` 0.40 F 5410 10 0.20 5405 0.00 ' • • • • 5400 0 12 13 14 15 16 12 13 14 15 16 —�Nitrate —a—Water Level Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Phosphorus 500 0.4 400 0.3 300 = (En - E 0.2 200 - 100 0.1 ✓0 , 0.0 , — 12 13 14 15 16 12 13 14 15 16 —*—TDS —Linear(TDS) —40—Total P —Linear(Total P) Annual Metals Report ACMW-19 Diamond Valley Ranch Ca Mg K Na Al As Ba Be Ag Cd Cr Cu ACMW-19 06/19/2012 20.5 5.87 2.08 10.3 358 1.2 32.8 <1 <10 <0.5 <1 <20 06/12/2013 21.7 7.01 2.07 9.86 06/05/2014 31.8 10.1 2.35 10.1 255 2.33 103 <2 <1 <1 <2 <4 06/02/2015 18.4 5.77 1.44 7.06 <20 <1 80.0 <1 <0.5 <0.5 <1 <2 08/30/2016 23.9 7.21 2.14 8.44 <20 <1 108 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn ACMW-19 06/19/2012 611 <0.2 1690 3.08 <5 <2.5 <5 <1 <1 <3 <10 06/05/2014 750 <0.2 4980 <4 <10 <1 <10 <2 <2 <6 <40 06/02/2015 138 <0.2 2400 3.77 <5 <0.5 <5 <1 <1 <3 <20 08/30/2016 212 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 <20 Cations reported as mg/L.All other metals reported as ug/L. ALPINE COUNTY POTABLE WATER WELLS Site: GW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Temp Alk. Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 02/02/2016 7.4 6.96 63.7 0.053 0.168 < 0.020 < 0.060 4.30 4.47 05/04/2016 12.7 6.24 61.7 0.045 < 0.050 < 0.020 < 0.060 4.37 4.10 08/16/2016 14.8 6.41 60.1 0.043 0.390 < 0.020 < 0.040 3.89 4.28 11/30/2016 11.0 6.30 60.6 0.029 0.410 < 0.020 < 0.040 4.18 4.59 Maximum 14.8 6.96 63.7 0.053 0.410 < 0.020 < 0.060 4.37 4.59 Minimum 7.4 6.24 60.1 0.029 < 0.050 < 0.020 < 0.040 3.89 4.10 Average 11.5 6.48 61.5 0.043 0.255 < 0.020 < 0.050 4.19 4.36 #Tests 4 4 4 0 0 4 4 4 4 4 4 Site: GW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 02/02/2016 183 290 27.8 10.8 < 1 < 1 05/04/2016 180 274 28.8 11.3 < 1 < 1 08/16/2016 176 264 24.8 10.5 < 1 < 1 11/30/2016 173 278 27.8 11.3 < 1 < 1 Maximum 183 290 28.8 11.3 < 1 < 1 Minimum 173 264 24.8 10.5 < 1 < 1 Average 178 277 27.3 11.0 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: GW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From 1981 To: 2016 Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 81 12.0 6.59 48.0 0.10 0.040 0.177 0.040 0.940 1.120 82 - 9.8 6.40 47.0 0.040 0.070 0.010 0.960 1.030 83 11.1 6.60 49.0 91 1.50 0.040 0.063 0.020 < 0.010 0.840 0.860 84 12.0 6.41 52.0 88 0.22 0.040 0.108 0.040 < 0.010 0.710 0.830 85 11.5 6.60 55.0 89 0.22 0.034 0.083 0.034 < 0.010 0.808 0.901 86 11.3 6.71 55.0 92 0.32 0.030 0.078 0.028 < 0.010 0.861 0.949 87 11.6 6.63 55.0 97 0.21 0.032 0.086 < 0.020 < 0.010 0.970 1.316 88 11.5 6.51 56.0 111 0.25 0.030 0.105 0.029 < 0.010 1.002 1.117 89 11.1 6.49 55.0 112 0.25 0.028 0.099 0.037 < 0.010 1.036 1.145 90 11.5 6.74 53.0 126 0.15 0.042 0.097 < 0.020 < 0.010 1.324 1.431 91 11.1 6.93 55.0 133 0.19 0.033 0.094 0.031 0.010 1.421 1.525 92 11.9 6.75 55.0 132 0.28 0.031 0.087 0.024 0.012 1.578 1.678 93 10.6 6.86 56.0 123 0.13 0.031 0.113 0.030 0.012 1.962 2.086 94 11.6 6.63 57.0 124 0.24 0.028 0.070 0.023 0.011 2.364 2.445 95 10.9 6.69 59.0 112 0.20 0.050 0.094 0.030 0.010 2.440 2.540 96 12.1 6.56 59.0 111 0.17 0.031 0.109 0.021 0.'011 2.926 3.046 97 11.7 6.44 60.0 105 0.21 0.029 0.116 0.021 0.011 3.073 3.201 98 10.7 6.40 62.0 94 0.53 0.032 0.131 < 0.021 < 0.010 3.022 3.162 99 11.6 6.33 61.0 93 0.11 0.033 0.139 < 0.020 < 0.010 3.180 3.329 00 11.2 6.74 62.0 84 0.12 0.037 0.189 0.021 < 0.012 3.585 3.700 01 11.8 6.48 62.0 83 0.15 0.033 0.100 < 0.020 < 0.028 3.388 3.480 02 11.6 6.54 62.0 78 0.02 0.030 0.113 < 0.053 3.303 3.482 03 11.9 6.79 59.1 76 0.02 0.034 0.076 < 0.053 3.295 3.385 04 11.8 6.67 59.0 80 0.05 0.036 0.124 < 0.030 3.473 3.565 05 11.2 6.62 58.3 79 0.06 0.034 0.101 < 0.030 3.642 3.760 06 11.1 6.63 56.9 77 0.17 0.032 0.066 < 0.032 3.814 3.889 07 10.9 6.63 58.7 82 0.08 0.029 0.067 < 0.035 4.608 4.676 08 11.4 6.67 61.5 89 0.09 0.035 < 0.058 < 0.044 5.179 5.248 09 11.3 6.36 61.5 90 0.06 0.037 < 0.050 < 0.048 5.609 5.682 10 11.3 6.46 60.9 83 0.09 0.037 0.052 < 0.048 5.245 5.329 11 11.5 6.29 61.2 78 0.18 0.040 0.058 < 0.043 4.522 4.545 12 12.3 6.46 62.7 83 0.09 0.037 0.184 < 0.020 < 0.049 4.673 4.822 13 11.6 6.39 62.6 0.039 0.127 0.026 < 0.042 4.864 4.857 14 12.1 6.42 61.8 0.036 0.358 0.025 < 0.040 4.565 4.868 15 12.3 6.45 61.0 0.042 0.108 < 0.020 < 0.040 4.735 4.703 16 11.5 6.48 61.5 0.043 0.255 < 0.020 < 0.050 4.185 4.360 Maximum 12.3 6.93 62.7 133 1.50 0.050 0.358 0.040 0.053 5.609 5.682 Minimum 9.8 6.29 47.0 76 0.02 0.028 0.050 0.010 < 0.010 0.710 0.830 Average 11.5 6.57 57.8 96 0.21 0.035 0.111 0.025 0.025 2.892 3.002 #Tests 36 36 36 30 31 36 36 26 34 36 36 Site: GW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From 1981 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD m SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 81 171 238 35.0 1 < 5 3.9 < 2.2 82 187 256 3 5.0 < 2.2 83 155 252 38.0 1 5 < 2.2 < 2.2 84 172 247 34.0 1 < 5 < 2.2 < 2.2 85 171 250 32.9 1 < 5 2.6 < 2.2 86 175 255 38.5 2 < 5 2.3 < 2.2 87 188 270 35.8 3 < 5 < 2.2 < 2.2 88 208 310 41.6 5 < 5 < 2.2 < 2.2 89 213 316 42.4 5 < 5 < 2.0 < 2.0 90 233 348 48.2 < 5 < 5 < 2.0 < 2.0 91 251 357 50.8 5 < 5 3.2 < 2.0 92 250 366 49.9 < 5 < 5 3.2 < 2.0 93 245 356 44.6 < 5 < 5 2.3 < 2.0 94 240 365 49.8 < 5 4 4.6 < 2.0 95 222 336 40.0 7 < 5 2.0 < 2.0 96 209 326 37.8 2 5 3.0 1.2 97 194 304 33.9 4 5 1.6 1.0 98 186 291 30.1 < 5 < 5 < 1.1 < 1.1 99 181 279 26.6 < 5 < 5 1.6 1.1 00 174 268 23.6 < 5 10.8 < 5 < 1.1 < 1.1 01 167 256 23.6 < 5 13.1 < 5 1.1 1.1 02 166 251 22.8 < 5 12.2 < 5 < 1.1 < 1.1 03 164 245 24.4 6 11.8 < 5 < 1.1 < 1.1 04 168 252 26.3 < 5 11.7 < 5 < 1.1 < 1.1 05 172 238 28.1 < 5 11.8 < 5 < 1.1 < 1.1 06 174 241 29.5 < 6 11.3 < 5 < 1.1 < 1.1 07 189 281 32.9 < 5 11.8 5 < 1.1 < 1.1 08 195 308 34.3 < 5 12.1 5 < 1.1 < 1.1 09 197 305 34.2 < 5 11.9 5 < 1.1 < 1.1 10 195 296 31.3 11 12.4 < 5 < 1.1 < 1.1 11 183 280 27.7 6 11.8 < 5 < 1.1 < 1.1 12 183 278 28.2 11.7 < 5 < 1.1 < 1.1 13 188 285 29.0 11.5 < 1.1 < 1.1 14 184 283 28.3 11.2 < 1.1 < 1.1 15 187 287 29.6 11.9 7.3 < 1.0 16 178 277 27.3 11.0 < 1.0 < 1.0 Maximum 251 366 50.8 11 13.1 5 7.3 2.2 Minimum 155 238 22.8 1 10.8 4 < 1.0 1.0 Average 192 288 34.0 4 11.8 5 2.1 1.5 #Tests 36 36 35 31 17 31 36 36 0 Site GW-05 Nitrate-Nitrogen Chlorides 10 _ 100 9 : 90 8 : 80 7 : 70 6 -_ 60 -: • 4 _ - 40 3 = -r A'' 30 : ,-rte 2 _ 20 1 : - - 10 - 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —40—Nitrate Linear(Nitrate) t Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Coliform Bacteria 500 25 400 20 300 E 15 J O O : E 200 a 10 • 2 100 5 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 — TDS Linear(TDS) tTotal Coliforms Linear(Total Coliforms) Annual Metals Report GW-05 Neddenriep Ca Mg K Na Al As Ba Be Ag Cd Cr 'Cu GW-05 09/15/1987 28 9.2 3.5 9.2 <4 60 50 <0.1 <20 <20 07/20/1988 27 8.6 3.9 9.8 <4 64 <10 <0.1 <10 <20 11/21/1989 30.1 3.8 4.5 12.2 <100 <10 <100 <10 <1 <10 <50 07/05/1990 27.7 10.2 5.3 14.7 <100 <10 <100 <10 <1 <10 <50 08/13/1991 33 12 4.3 13 <50 <4 71 <10 <0.1 <10 <20 06/08/1992 34 10 4 13 <50 <4 72 <10 <0.1 <10 <20 07/12/1994 31 9.6 3.8 16 <50 <2 68 <10 <0.1 <10 <20 11/01/1995 28 8.4 4.1 16 <50 <1 66 <10 <0.1 <10 <10 06/11/1996 28 8.4 3.5 15 72 <1 64 <10 - <0.1 <10 <10 06/10/1997 28 9.3 4.4 17 <25 <2 58 <10 <0.5 <10 <25 06/09/1998 21 7.89 3.47 15.7 <25 <2 <100 <10 <0.5 <10 <20 07/06/1999 22.9 7.55 3.72 15.9 <50 <2 <100 <1 <10 <0.1 <10 <20 06/01/2000 21.2 7.2 3.46 14 <2 <100 <10 <20 06/11/2001 19.9 6.16 3.54 15.8 <2 <100 22.9 <20 06/11/2002 19.1 6.26 3.5 16.4 <10 <2 <100 <0.2 <10 <0.2 <1 22.4 06/10/2003 20.2 6.41 3.43 16.2 <10 <2 <100 <0.2 <10 <0.2 <1 <20 06/08/2004 18.3 6.26 3.51 16.1 <10 <2 <100 <0.2 <10 <0.2 <1 <20 06/01/2005 19.1 6.27 3.4 16.6 3.7 <100 <10 <20 06/07/2006 19 6.56 3.55 18.9 <50 <2 <2 <10 <2 <2 <20 06/12/2007 21.6 6.9 3.66 19.7 <20 <2 180 <1 13.8 <0.5 <1 <20 06/18/2008 24.1 7.04 4.02 20.5 <20 <2 53 <1 <10 <0.5 <1 <20 06/09/2009 23.2 7.34 3.9 22.6 <20 <2 55 <1 <10 <0.5 <1 <20 06/08/2010 23 7.3 3.5 21 <20 <1 55 <1 <0.5 <0.5 <1 3.4 06/01/2011 21.1 7.25 3.67 22.2 <20 <1 47.9 <1 <0.5 <0.5 <1 2.56 07/05/2012 17.3 6.12 3.62 20.4 <20 <1 47.8 <1 <10 <0.5 <1 <20 06/11/2013 20.5 6.20 3.68 22.2 07/08/2014 20.8 6.64 3.65 23.7 <20 <1 49.0 <1 <0.5 <0.5 <1 2.41 08/18/2015 20.4 6.76 4.02 25.2 <20 <1 49.1 <1 -<0.5 <0.5 <1 2.08 08/16/2016 17.4 5.73 3.45 22.9 <20 <1 46.4 <1 <0.5 <0.5 <1 <2 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn GW-05 09/15/1987 <30 48 <10 <1 <1 10 10/21/1987 <0.2 07/20/1988 <30 0.2 <10 <1 <1 10 11/21/1989 540 <1 <10 <10 <5 <50 07/05/1990 <100 <1 <10 <10 <5 _ 66 08/13/1991 <30 <0.2 <10 <1 <1 <10 06/08/1992 <30 <0.2 <10 <1 <1 <10 07/12/1994 <30 <0.2 <5 <1 <1 <5 11/01/1995 <30 <0.2 <5 <1 <1 <5 06/11/1996 <30 <0.2 <5 <1 <1 <5 06/10/1997 <50 <0.5 <10 <5 <5 <50 06/09/1998 <30 <0.5 <20 <2.5 <5 17.7 07/06/1999 <50 <0.2 <20 <5 <2.5 <1 <3 <1 <10 06/01/2000 <50 <20 <2.5 <10 06/11/2001 <50 20.5 <2.5 <10 06/11/2002 <50 <0.01 <20 <1 <2.5 <2 <1 <0.2 47.7 06/10/2003 <50 0.01 <20 <1 <2.5 <2 <1 <0.2 73.7 06/08/2004 <50 0.01 <20 <1 <2.5 <2 <1 <0.2 37.7 06/01/2005 <50 <2.5 82.5 06/07/2006 <50 <0.2 <20 <2 <2 <2.5 <10 <2 <1 2 60.6 06/12/2007 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 5.1 72.2 06/18/2008 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 68.4 06/09/2009 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 55.6 06/08/2010 <20 <0.2 2 <2 <5 <0.5 <5 <1 <1 <3 55 06/01/2011 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 82.5 07/05/2012 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 44 07/08/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 3.38 43.5 08/18/2015 <20 <0.2 <2 <2 <5 0.521 <5 <1 <1 <3 77.9 08/16/2016 <20 <0.2 <2 <2 <5 1.65 <5 <1 <1 3.14 123 Site: GW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 02/02/2016 7.0 6.90 49.5 0.047 0.190 < 0.020 < 0.080 8.15 8.34 05/04/2016 16.7 6.07 44.2 0.044 < 0.050 < 0.020 < 0.080 14.10 11.60 • 08/16/2016 16.7 6.19 . 46.6 0.050 < 0.050 < 0.020 < 0.080 8.83 8.51 11/30/2016 14.7 6.24 48.3 0.041 0.260 < 0.020 < 0.080 7.98 8.24 Maximum 16.7 6.90 49.50.050 0.260 < 0.020 < 0.080 14.10 11.60 Minimum 7.0 6.07 44.2 0.041 < 0.050 < 0.020 < 0.080 7.98 8.24 Average 13.8 6.35 47.2 0.046 0.138 < 0.020 < 0.080 9.77 9.17 #Tests 4 4 4 0 0 4 4 4 4 4 4 Site: GW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 02/02/2016 204 340 46.5 19.5 < 1.0 < 1 05/04/2016 237 351 54.0 22.4 < 1.0 < 1 08/16/2016 194 316 37.5 17.6 < 1.0 < 1 11/30/2016 196 299 37.0 20.6 < 1.0 < 1 Maximum 237 351 54.0 22.4 < 1.0 < 1 Minimum 194 299 37.0 17.6 < 1 < 1 Average 208 327 43.8 20.0 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: GW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From 1981 To: 2016 Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 81 11.4 6.42 39.0 0.80 0.040 0.116 0.020 1.280 1.340 82 9.5 6.30 42.0 0.060 0.134 0.020 1.790 1.920 83 9.9 6.42 48.0 99 1.32 0.030 0.063 0.020 < 0.010 1.530 1.600 84 11.2 6.38 49.0 88 1.69 0.090 0.138 0.030 < 0.010 1.240 1.390 85 10.0 6.50 46.0 84 0.81 0.049 0.107 0.028 < 0.010 1.081 1.198 86 10.9 6.48 47.0 106 1.50 0.039 0.090 0.020 < 0.010 1.313 1.413 87 12.7 6.56 45.0 100 1.67 0.055 0.141 < 0.021 < 0.010 1.340 1.844 88 13.9 6.57 45.0 102 1.40 0.039 0.152 0.030 < 0.010 1.536 1.698 89 10.9 6.54 46.0 121 5.22 0.081 0.104 0.024 < 0.010 2.638 2.752 90 12.0 6.79 48.0 103 2.38 0.045 0.102 0.020 < 0.010 3.414 3.525 91 11.7 7.01 52.0 86 0.95 0.074 0.125 0.033 < 0.010 2.937 3.072 92 12.1 6.76 54.0 85 0.31 0.038 0.121 0.023 0.010 3.711 3.842 93 11.8 6.95 57.0 72 0.73 0.041 0.125 0.024 0.011 4.054 4.189 94 11.7 6.78 57.0 68 0.54 0.032 0.100 0.028 0.010 4.505 4.615 95 12.2 6.66 58.0 60 2.32 0.050 0.090 0.030 0.010 5.500 5.600 96 13.3 6.52 59.0 58 1.09 0.057 0.207 0.020 0.011 6.526 6.743 97 11.6 6.51 58.0 59 0.51 0.048 0.139 0.020 0.011 6.586 6.738 98 11.5 6.48 57.0 46 1.31 0.048 0.163 < 0.021 < 0.010 4.617 4.791 99 12.0 6.35 51.0 42 0.54 0.044 0.111 < 0.020 < 0.010 3.996 4.117 00 12.1 6.77 52.0 48 1.40 0.073 0.198 0.021 < 0.012 5.176 5.295 01 12.5 6.47 50.0 48 3.43 0.073 0.125 0.028 < 0.033 5.142 5.246 02 11.9 6.54 49.0 55 0.36 0.058 0.212 < 0.051 6.282 6.645 03 12.4 7.06 47.6 49 36.70 0.077 0.084 < 0.045 5.266 5.383 04 13.0 6.70 50.1 53 4.92 0.113 0.149 < 0.043 5.715 5.872 05 12.3 6.53 49.5 60 2.65 0.046 0.096 < 0.047 7.136 7.218 06 12.3 6.45 51.2 62 8.84 0.056 0.168 < 0.067 9.035 9.060 07 13.4 6.26 51.7 60 2.50 0.041 0.089 < 0.091 9.036 9.171 08 13.8 6.46 52.1 55 0.71 0.074 < 0.058 < 0.088 7.759 7.873 09 13.9 6.19 48.5 58 4.74 0.061 < 0.050 < 0.068 7.118 7.210 10 12.9 6.31 48.1 55 0.34 0.069 0.064 < 0.060 6.949 7.180 11 14.0 6.20 49.6 57 0.66 0.045 0.072 < 0.052 7.376 7.279 12 14.9 6.24 49.3 62 0.16 0.046 < 0.051 < 0.020 < 0.063 7.544 7.656 13 14.5 6.20 47.5 0.050 0.652 0.027 < 0.069 7.984 8.275 14 14.7 6.22 47.1 0.049 0.052 0.024 < 0.071 6.683 6.377 15 14.2 6.24 45.6 0.047 0.295 < 0.020 0.055 7.675 7.400 16 13.8 6.35 47.2 0.046 0.138 < 0.020 < 0.080 9.765 9.173 Maximum 14.9 7.06 . 59.0 121 36.70 0.113 0.652 0.033 0.091 9.765 9.173 Minimum 9.5 6.19 39.0 42 0.16 0.030 < 0.050 0.020 < 0.010 1.081 1.198 Average 12.4 6.50 49.8 70 2.98 0.055 0.136 0.024 0.034 5.034 5.131 #Tests 36 36 36 30 31 36 36 26 34 36 36 Site: GW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From 1981 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coll E.coil Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 81 237 351 45.0 2 < 5 5.6 < 2.2 82 206 326 3 7.7 < 2.2 83 188 303 44.0 2 < 5 13.2 6.8 90 84 177 285 41.0 2 < 5 14.5 2.1 7.1 85 180 286 41.5 1 < 5 2.7 < 2.2 < 2.2 86 227 350 51.6 2 < 5 < 2.2 < 2.2 < 2.2 87 211 344 45.6 3 < 5 < 2.2 < 2.2 < 2.2 88 221 365 51.3 6 < 5 5.1 < 2.2 89 242 389 54.0 5 < 5 < 2.0 < 2.0 90 234 379 48.2 < 5 < 5 3.9 < 2.0 91 210 343 43.7 < 5 < 5 4.5 < 2.0 92 214 364 48.7 < 5 < 5 3.4 < 2.0 93 203 336 37.5 13 < 5 3.8 < 2.0 94 193 319 39.1 < 5 4 4.3 < 2.0 95 181 303 33.0 6 5 5.8 < 2.0 96 189 298 29.7 2 5 12.7 1.2 97 181 291 28.6 4 5 1.7 1.0 98 162 255 23.7 < 5 < 5 5.2 < 1.1 99 146 230 20.9 < 5 < 5 4.9 < 1.1 00 161 252 26.0 < 5 9.54 < 5 1.1 < 1.1 01 160 251 26.9 < 5 9.63 5 1.4 < 1.1 02 178 276 31.2 < 5 10.79 5 1.2 < 1.1 03 176 275 33.2 5 10.99 13 1.3 < 1.1 04 177 271 32.6 5 11.72 5 1.6 < 1.1 05 192 282 37.0 < 5 12.11 < 5 2.7 < 1.1 06 209 307 38.7 6 12.95 < 5 8.3 < 1.1 07 205 317 37.3 < 5 14.64 8 7.1 < 1.1 08 192 300 35.4 < 5 14.71 5 3.9 < 1.1 09 185 291 34.3 < 5 13.18 < 5 3.6 < 1.1 10 186 288 32.6 9 13.89 < 5 3.7 < 1.1 11 190 300 34.1 6 12.80 < 5 2.3 < 1.1 • 12 195 294 35.8 14.05 5 < 1.1 < 1.1 13 193 296 35.5 16.05 1.9 < 1.1 14 185 285 34.5 19.09 < 1.1 < 1.1 15 192 311 40.6 18.43 < 1.0 < 1.0 16 208 327 43.8 20.03 < 1.0 < 1.0 Maximum 242 389 54.0 13 20.03 13 14.5 6.8 90.0 Minimum 146 230 20.9 1 9.54 4 1.0 1.0 < 2.2 Average 194 307 37.6 5 13.80 5 4.2 1.6 20.7 #Tests 36 36 35 31 17 31 36 36 5 Site GW-08 Nitrate-Nitrogen Chlorides 10 -_ 100 9 1 90 8 = - 80 _ 7 = )11111 70 : 6 _ )11 I` 60 -_ E 5 = E 50 - S 4 40 : - - r M� 3 : Aie 30 : 2 4400f 20 -_ 1 - 10 -_ 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —+--Nitrate Linear(Nitrate) t Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Coliform Bacteria 500 25 400 - - - 20 300 E 15 _ J p Iril Cs _ E ` I 200 • �� _ za 10 - A all, 100 . : i . . . . 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —6--TDS Linear(TDS) — Total Coliforms Linear(Total Coliforms) Annual Metals Report GW-08 Arant Ranch house Ca Mg K Na Al As Ba Be Ag Cd Cr Cu GW-08 09/15/1987 26 8.8 4.1 23 <4 60 <10 <0.1 <20 <20 07/20/1988 23 7.8 4.2 25 <4 58 <10 <0.1 <10 <20 11/21/1989 24.7 2.2 1.3 28.4 <100 <10 <100 <10 <1 <10 <50 07/05/1990 23.1 8.4 5.6 35.8 <100 <10 <100 <10 <1 <10 <50 08/13/1991 17 6.4 4 28 <50 <4 46 <10 <0.1 <10 26 06/16/1992 26 8.5 4.5 46 <50 <4 65 <10 <0.1 <10 <20 07/12/1994 16 5.2 3.3 32 <50 <2 41 <10 <0.1 <10 <20 11/01/1995 15 5.1 3.9 36 <50 <1 48 <10 <0.1 <10 71 06/11/1996 16 5.3 3.5 36 81 <1 44 <10 0.1 <10 67 06/10/1997 15 5.5 4.2 38 <25 <2 <50 <10 <0.5 <10 40 08/04/1998 11.1 3.42 2.96 30.8 <25 <2 <100 <10 <0.5 <10 90.2 07/06/1999 9.83 3.51 3.09 30.4 <50 <2 <100 <1 <10 <0.1 <10 <20 06/01/2000 11.7 4.61 3.28 32.1 <2 <100 <10 67.5 06/11/2001 10.1 3.86 3.26 29.8 <2 <100 18.2 43.8 06/11/2002 13.2 4.6 3.64 36.4 <10 <2 <100 <0.2 <10 <0.2 <1 34 06/10/2003 12.7 4.35 3.44 33.1 <10 <2 <100 <0.2 <10 <0.2 <1 72.4 06/08/2004 10.6 4.04 3.41 30 <10 <2 <100 <0.2 <10 <0.2 <1 59.5 06/01/2005 12.1 4.05 3.51 33.7 3.78 <100 <10 244 06/07/2006 16.4 5.95 4.14 37.9 <50 <2 <2 <10 <2 <2 182 06/12/2007 15.7 5.47 4 37.2 <20 <2 47 <1 <10 <0.5 <1 183 06/18/2008 16.4 5.02 4.12 35.7 <20 <2 48 <1 <10 <0.5 <1 <20 06/09/2009 14 4.8 3.79 33.7 <20 <2 40 <1 <10 <0.5 <1 21 06/08/2010 15 5.1 3.5 33 <20 <1 41 <1 <0.5 <0.5 <1 23 06/01/2011 15.6 5.77 3.75 37.5 <20 <1 42.7 <1 <0.5 <0.5 <1 77.8 07/05/2012 11.8 4.13 3.52 30.7 <20 <1 34.8 <1 <10 <0.5 <1 36.1 06/11/2013 14.4 4.70 3.84 35.1 07/08/2014 14.1 4.91 3.72 35.8 <20 1.14 38.3 <1 <0.5 <0.5 <1 13.9 08/18/2015 13.8 4.92 3.61 33.9 <20 <1 41.0 <1 <0.5 <0.5 <1 13.8 ,08/16/2016 14.3 5.12 3.58 34.4 <20 <1 39.8 <1 <0.5 <0.5 <1 5.67 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn GW-08 09/15/1987 200 <0.2 10 1 <1 10 07/20/1988 560 <0.2 37 <1 <1 20 11/21/1989 <100 <1 <10 <10 <5 <50 07/05/1990 230 <1 22 <10 <5 64 08/13/1991 76 <0.2 <10 2 <1 12 06/16/1992 67 <0.2 10 <1 <1 18 07/12/1994 <30 <0.2 <5 <1 <1 <5 11/01/1995 470 0.5 8.2 <1 <1 58 06/11/1996 2100 <0.2 14 7.9 <1 84 06/10/1997 82 <0.5 <10 <5 <5 <50 08/04/1998 903 <0.5 <20 <2.5 <5 46.6 07/06/1999 60.1 <0.2 <20 <5 <2.5 <1 <3 <1 13.2 06/01/2000 90 <20 <2.5 17 06/11/2001 452 <20 <2.5 50.1 06/11/2002 81.6 <0.01 <20 <1 <2.5 <2 <1 <0.2 <10 06/10/2003 99.3 <0.01 <20 <1 <2.5 <2 <1 <0.2 12 06/08/2004 279 0.02 <20 <1 <2.5 <2 <1 <0.2 <10 06/01/2005 1110 2.84 27.5 06/07/2006 314 <0.2 <20 <2 2 <2.5 <10 <2 <1 <2 20 06/12/2007 211 <0.2 31.4 <2 <5 <2.5 <5 <1 <1 <3 149 06/18/2008 267 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 66.3 06/09/2009 105 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 18.3 06/08/2010 84 <0.2 2.1 <2 <5 1.1 <5 <1 <1 <3 <20 06/01/2011 490 <0.2 14 <2 <5 3.81 <5 <1 <1 <3 <20 07/05/2012 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <10 07/08/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 3.32 68.1 08/18/2015 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 76.1 08/16/2016 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3. 75.9 Cations reported as mg/L.All other metals reported as ug/L. Site: GW-11 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Date C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/14/2016 10.9 6.69 73.0 0.053 < 0.050 < 0.020 < 0.010 0.530 0.533 05/11/2016 13.8 6.80 71.9 0.068 < 0.050 < 0.020 < 0.010 0.519 0.534 08/10/2016 19.8 6.77 69.7 0.047 < 0.050 < 0.020 < 0.010 0.447 0.376 11/15/2016 13.6 6.77 68.9 0.043 < 0.100 < 0.020 < 0.010 0.413 0.476 Maximum 19.8 6.80 73.0 0.068 < 0.100 < 0.020 < 0.010 0.530 0.534 Minimum 10.9 6.69 68.9 0.043 < 0.050 < 0.020 < 0.010 0.413 0.376 Average 14.5 6.76 70.9 0.053 < 0.063 < 0.020 < 0.010 0.477 0.480 #Tests 4 4 4 0 0 4 4 4 4 4 4 Site: GW-11 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/14/2016 113 154 0.872 0.960 < 1 < 1 05/11/2016 118 142 1.040 0.783 < 1 < 1 08/10/2016 119 161 1.020 0.674 < 1 < 1 11/15/2016 119 139 0.950 0.679 < 1 < 1 Maximum 119 161 1.040 0.960 < 1 < 1 Minimum 113 139 0.872 0.674 < 1 < 1 Average 117 149 0.971 0.774 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: GW-11 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From 1981 To: 2016 Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 81 11.0 6.60 42.0 0.040 0.030 0.020 0.570 0.600 82 10.2 6.34 41.0 0.040 0.056 0.020 1.290 0.960 83 9.9 " 6.53 43.0 60 0.15 0.040 0.058 0.020 < 0.010 1.100 1.130 84 9.9 6.32 44.0 38 0.33 0.030 0.085 0.030 < 0.010 0.490 0.580 85 10.5 6.49 46.0 37 0.31 0.031 0.055 0.023 < 0.010 0.500 0.565 86 9.9 6.63 46.0 36 0.19 0.032 0.053 0.022 < 0.010 0.588 0.646 87 10.3 6.74 45.0 35 0.11 0.028 0.069 < 0.020 < 0.010 0.370 0.582 88 10.1 6.47 46.0 35 0.17 0.029 0.070 0.033 < 0.010 0.308 0.388 89 11.0 6.60 46.0 35 0.16 0.027 0.048 0.023 < 0.010 0.522 0.580 90 10.7 7.09 43.0 39 0.18 0.035 0.063 0.020 < 0.010 0.336 0.409 91 11.5 7.04 44.0 34 1.76 0.034 0.072 0.027 0.010 0.268 0.350 92 12.4 6.83 46.0 34 0.28 0.030 0.063 0.022 < 0.011 0.325 0.399 93 11.3 6.94 40.0 32 0.14 0.037 0.091 0.026 0.011 0.213 0.314 94 12.3 6.66 41.0 33 0.30 0.023 0.070 0.023 0.010 0.206 0.286 95 12.3 6.66 39.0 30 0.55 0.030 0.269 0.210 0.010 0.250 0.530 96 13.5 6.46 42.0 34 0.33 0.028 0.094 0.025 0.011 0.386 0.491 97 13.6 6.57 45.0 38 0.13 0.029 0.094 0.021 0.011 0.524 0.631 98 14.0 6.24 47.0 39 0.45 0.026 0.117 < 0.021 < 0.010 0.421 0.549 99 14.8 6.23 46.0 40 0.14 0.022 0.108 < 0.020 < 0.010 0.402 0.602 00 13.4 6.98 58.0 48 0.26 0.027 0.114 0.021 < 0.010 0.408 0.480 01 15.0 7.07 77.0 57 0.12 0.048 0.131 < 0.020 < 0.010 0.454 0.600 02 14.5 7.05 77.0 56 0.02 0.058 0.178 < 0.010 0.454 0.638 03 14.9 7.25 74.2 56 0.08 0.047 0.073 < 0.010 0.482 0.536 04 14.0 7.23 73.0 56 0.08 0.054 0.110 < 0.010 0.505 0.624 05 14.9 7.10 73.9 56 0.22 0.040 < 0.083 < 0.010 0.469 0.558 06 15.0 7.11 72.0 51 0.13 0.044 < 0.079 < 0.010 0.483 0.577 07 16.2 7.23 73.8 51 0.08 0.042 0.084 < 0.010 0.475 0.527 08 16.2 7.26 74.4 55 0.40 0.044 0.060 < 0.010 0.475 0.511 09 13.2 6.99 72.8 56 0.19 0.049 < 0.050 < 0.010 0.512 0.547 10 13.3 7.24 72.7 53 0.09 0.050 0.051 < 0.010 0.516 0.590 11 14.0 6.96 72.3 54 0.24 0.042 0.082 < 0.010 0.454 0.426 12 13.7 7.11 72.1 56 0.26 0.044 0.049 < 0.020 < 0.010 0.526 0.555 13 14.8 7.04 71.7 0.056 < 0.050 0.027 < 0.009 0.491 0.499 14 13.7 7.00 70.9 0.047 0.056 0.027 0.010 0.503 0.496 15 13.5 6.97 71.2 0.047 < 0.050 < 0.020 < 0.010 0.520 0.514 16 14.5 6.76 70.9 0.053 < 0.063 < 0.020 < 0.010 0.477 0.480 Maximum 16.2 7.26 77.0 60 1.76 0.058 0.269 0.210 0.011 1.290 1.130 Minimum 9.9 6.23 39.0 30 0.02 0.022 0.030 0.020 0.009 0.206 0.286 Average 12.9 6.83 57.2 44 0.26 0.038 0.081 0.030 0.010 0.480 0.549 #Tests 36 36 36 30 30 36 36 26 34 36 36 Site: GW-11 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From 1981 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 81 82 90 < 1 < 2.2 < 2.2 82 81 106 1 < 2.2 < 2.2 83 60 99 3.000 2 8 < 2.2 < 2.2 84 65 96 2.000 1 < 5 < 2.2 < 2.2 85 68 96 1.500 1 < 5 < 2.2 < 2.2 86 67 96 1.400 1 < 5 < 2.2 < 2.2 87 73 92 1.100 3 < 5 < 2.2 < 2.2 88 74 96 1.100 5 < 5 < 2.2 < 2.2 89 71 95 1.200 6 < 5 < 2.0 < 2.0 90 79 94 1.000 < 5 < 5 < 2.0 < 2.0 91 75 94 1.000 < 5 < 5 < 2.0 < 2.0 92 72 95 1.000 < 5 < 5 < 2.0 < 2.0 93 70 87 1.000 < 5 < 5 < 2.0 < 2.0 94 70 91 0.900 < 5 4 < 2.0 < 2.0 95 68 83 0.900 < 5 < 5 < 2.0 < 2.0 96 73 90 0.900 2 5 1.2 1.2 97 77 96 1.300 4 5 1.0 1.0 98" 81 101 0.900 < 5 < 5 < 1.1 < 1.1 99 78 99 1.000 < 5 < 5 < 1.1 < 1.1 00 95 120 0.900 < 5 0.850 < 5 < 1.1 < 1.1 01 115 151 0.800 < 5 0.790 < 5 < 1.1 < 1.1 02 116 147 0.700 < 5 1.310 < 5 < 1.1 < 1.1 03 118 146 0.754 < 5 0.772 < 5 < 1.1 < 1.1 04 117 144 0.740 < 5 0.783 < 5 < 1.1 < 1.1 05 117 138 0.796 < 5 0.939 < 5 < 1.1 < 1.1 06 116 139 0.695 < 6 0.752 < 5 < 1.1 < 1.1 07 116 141 0.715 < 5 0.745 < 5 < 1.1 < 1.1 08 117 139 0.988 < 5 0.766 < 5 < 1.1 < 1.1 09 115 142 0.909 < 5 0.751 < 5 < 1.1 < 1.1 10 117 145 0.788 11 0.847 < 5 < 1.1 < 1.1 11 113 145 0.771 6 0.678 < 5 < 1.1 < 1.1 12 114 142 0.838 0.710 < 5 < 1.1 < 1.1 13 116 141 0.762 0.654 < < 1.1 < 1.1 14 113 145 0.953 0.747 < 1.1 < 1.1 15 118 147 1.010 0.722 7.2 < 1.0 16 117 149 0.971 0.774 < 1.0 < 1.0 Maximum 118 151 3.000 11 1.310 8 7.2 2.2 Minimum 60 83 0.695 < 1 0.654 4 1.0 1.0 Average 93 117 1.038 4 0.799 5 1.7 1.5 #Tests 36 36 34 31 17 30 36 36 0 Site GW-11 Nitrate-Nitrogen Chlorides 5 50 4 40 3 30 J J E - E _ 2 20 1 10 0 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 �—Nitrate Linear(Nitrate) t Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Coliform Bacteria 500 25 - 400 20 300 E 15 J p 200 a 10 100 5 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —*—TDS Linear(TDS) — Total Coliforms Linear(Total Coliforms) Annual Metals Report GW-11 Diamond Valley School Ca Mg K Na Al As Ba Be Ag Cd Cr Cu GW-11 05/15/1986 11 2.8 1.2 2.5 <4 <100 <10 <1 <10 <20 05/27/1986 11.5 2.6 1.1 5.8 <2 <5 <20 09/15/1987 6.4 2.5 1.1 5.2 <4 30 10 <0.1 <20 <20 07/20/1988 9.5 2.5 1.1 5.1 <4 20 <10 <0.1 <10 <20 11/21/1989 13.2 1.6 1.6 10.4 <100 <10 <100 <10 <1 <10 <50 07/05/1990 9.1 2.5 2.1 6.9 <100 <10 <100 (<10 <1 <10 <50 08/13/1991 9.3 2.5 1.3 5.2 <50 <4 23 <10 <0.1 <10 100 06/08/1992 -9.5 2.3 1.1 6.4 <50 <4 21 <10 <0.1 <10 40 07/12/1994 8.8 2.1 1.1 5.2 54 <2 24 <10 <0.1 <10 35 11/08/1995 8 1.9 1.3 4.9 <50 <1 22 <10 <0.1 <10 86 06/11/1996 8.7 2 1.2 5 190 <1 24 <10 <0.1 <10 68 06/10/1997 11 2.8 1.3 6.9 <25 <2 <50 <10 <0.5 <10 140 06/09/1998 7.8 2.42 1.24 5.05 <25 <2 <100 <10 <0.5 <10 250 07/06/1999 10.5 2.39 1.32 5.72 <50 <2 <100 <1 <10 <0.1 <10 226 06/01/2000 9.05 2.47 ' 1.26 5.6 <2 180 <10 219 06/11/2001 13 4.85 1.68 9.48 <2 <100 14.1 30.8 06/11/2002 13 4.86 1.42 9.79 <10 <2 <100 <0.2 <10 <0.2 <1 31.5 06/10/2003 13.3 4.88 1.57 9.33 <10 <2 .100 <0.2 <10 <0.2 <1 43.7 06/08/2004 12.3 4.62 1.41 9.18 <10 <2 <100 <0.2 <10 <0.2 <1 27.1 06/01/2005 12.9 4.68 1.48 9.13 3.54 <100 <10 27.5 06/07/2006 12.6 4.32 1.48 10.1 <50 <2 <2 <10 <2 <2 30.2 06/12/2007 13.4 4.86 1.59 9.13 <20 <2 31 <1 <10 <0.5 <1 40.2 06/18/2008 15.4 4.59 1.62 10.2 <20 <2 34 <1 <10 <0.5 <1 <20 06/09/2009 13.4 4.94 1.51 9.83 <20 <2 32 <1 <10 <0.5 <1 28 06/08/2010 14 5.2 1.5 10 <20 <1 32 <1 <0.5 <0.5 1.1 11 06/01/2011 13.6 5.35 1.64 8.99 <20 <1 28.6 <1 <0.5 <0.5 <1 23.7 07/05/2012 12.3 4.34 1.59 8.72 <20 <1 31.2 <1 <10 <0.5 <1 81.9 06/18/2013 12.5 4.14 1.44 9.23 06/17/2014 13.6 5.01 1.63 9.79 <20 <1 35.1 <1 <0.5 <0.5 <1 33.1 07/15/2015 14.1 5.07 1.58 9.25 <20 <1 29.4 <1 <0.5 <0.5 <1 17.6 08/10/2016 13.1 4.85 1.52 8.64 <20 <1 29.3 <1 <0.5 <0.5 <1 22.0 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn GW-11 05/15/1986 50 <1 <10 <1 <5 20 05/27/1986 - <2 09/15/1987 <30 18 <10 <1 <1 10 10/21/1987 <0.2 07/20/1988 <30 <0.2 <10 <1 <1 14 11/21/1989 <100 <1 <10 <10 <5 <50 07/05/1990 `<100 <1 <10 <10 <5 <50 08/13/1991 33 <0.2 <10 1 <1 12 06/08/1992 <30 <0.2 <10 <1 <1 71 07/12/1994 <30 <0.2 <5 <1 <1 51 11/08/1995 50 <0.2 <5 <1 <1 14 06/11/1996 38 <0.2 <5 <1 <1 9.4 06/10/1997 <50 <0.5 <10 <5 <5 <50 06/09/1998 <30 <0.5 <20 <2.5 <5 15.5 07/06/1999 <50 <0.2 <20 <5 <2.5 <1 <3 <1 <10 06/01/2000 <50 <20 <2.5 57.2 06/11/2001 <50 25.3 <2.5 250 06/11/2002 <50 <0.01 <20 <1 <2.5 <2 <1 <0.2 123 06/10/2003 <50 0.01 <30 <1 <2.5 <2 <1 <0.2 205 06/08/2004 <50 0.02 <20 <1 <2.5 <2 <1 <0.2 130 06/01/2005 <50 <2.5 200 06/07/2006 83.3 <0.2 <20 <2 <2 <2.5 <10 <2 <1 2 95 06/12/2007 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 85.8 06/18/2008 <50 <0.2 <20 <2 <5 . <2.5 <5 <1 <1 <3 52.8 06/09/2009 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 <3 47.7 06/08/2010 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 45 06/01/2011 <20 <0.2 <2 <2 <5 0.868 <5 <1 <1 <3 92.7 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn GW-11 07/05/2012 <50 <0.2 <20 <2 <5 <2.5 <5 <1 <1 59.3 06/17/2014 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 60.7 07/15/2015 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 51.1 08/10/2016 <20 <0.2 <2 <2 <5 <0.5 <5 <1 <1 <3 44.8 Cations reported as mg/L.All other metals reported as ug/L. Site: GW-17 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N . Total N Date C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 01/14/2016 11.6 6.95 79.9 0.013 0.121 0.068 < 0.010 < 0.010 0.121 05/11/2016 13.0 6.29 61.5 0.041 < 0.050 < 0.020 < 0.010 0.669 0.658 08/10/2016 13.7 6.26 59.5 0.034 < 0.050 < 0.020 < 0.010 0.865 0.780 11/15/2016 14.5 6.43 66.3 0.018 < 0.100 < 0.020 < 0.010 0.084 0.173 Maximum 14.5 6.95 79.9 0.041 0.121 0.068 < 0.010 0.865 0.780 Minimum 11.6 6.26 59.5 < 0.013 < 0.050 < 0.020 < 0.010 < 0.010 0.121 Average 13.2 6.48 66.8 0.027 0.080 0.032 < 0.010 0.407 0.433 #Tests 4 4 4 0 0 4 4 4 4 4 4 Site: GW-17 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA 2016 Total Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Date mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 01/14/2016 101 230 2.20 0.80 < 1 < 1 05/11/2016 107 126 2.30 1.28 < 1 < 1 08/10/2016 110 125 1.90 2.61 < 1 < 1 11/15/2016 109 141 2.11 0.65 < 1 < 1 Maximum 110 230 2.30 2.61 < 1 < 1 Minimum 101 125 1.90 0.65 < 1 < 1 Average 107 156 2.13 1.33 < 1.0 < 1.0 #Tests 4 4 4 0 4 0 4 4 0 Site: GW-17 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From . 2014 To: 2016 Temp Alk Hard Turb Total P TKN NH3-N NO2-N NO3-N Total N Year C pH mg/L mg/L NTU mg/L mg/L mg/L mg/L mg/L mg/L 14 13.6 6.52 66.5 0.023 0.064 0.038 < 0.010 0.417 0.445 15 13.1 6.55 66.2 0.019 0.057 0.022 < 0.010 0.667 0.607 16 13.2 6.48 66.8 0.027 0.080 0.032 < 0.010 0.407 0.433 Maximum 13.6 6.55 66.8 0.027 0.080 0.038 < 0.010 0.667 0.607 Minimum 13.1 6.48 66.2 0.019 0.057 - 0.022 < 0.010 0.407 0.433 Average 13.3 6.52 66.5 0.023 0.067 0.031 < 0.010 0.497 0.495 #Tests 3 3 3 0 0 3 3 3 3 3 3 Site: GW-17 SOUTH TAHOE PUBLIC UTILITY DISTRICT ALPINE COUNTY GROUNDWATER QUALITY DATA From 2014 To: 2016 Total Fecal/ Fecal TDS EC Chloride COD SO4 Color Coli E.coli Strep Year mg/L umhos mg/L mg/L mg/L Units MPN MPN MPN Comments 14 111 147 3.55 1.74 < 1.1 < 1.1 Well installed in 2014 15 110 150 2.25 1.71 < 1.0 < 1.0 16 107 156 2.13 1.33 < 1.0 < 1.0 Maximum 111 156 3.55 1.74 < 1.1 < 1.1 Minimum 107 147 2.13 1.33 < 1.0 < 1.0 Average 109 151 2.64 1.59 < 1.0 < 1.0 #Tests 3 3 3 0 3 0 3 3 0 Site GW-17 Nitrate-Nitrogen Chlorides 5 - 50 4 40 3 30 11) J J E E 2 20 1 10 0 ' 0 14 15 16 14 15 16 —�Nitrate Linear(Nitrate) —.--Chloride Linear(Chloride) Total Dissolved Solids (TDS) Total Coliform Bacteria 500 25 400 20 300 E 15 J _ O p� O 200 a 10 5 100 • • • - - -- 5 • • 0 0 14 15 16 14 15 16 --4--TDS Linear(TDS) tTotal Coliforms —Linear(Total Coliforms) Annual Metals Report GW-17 Diamond Valley Ranch House Well Ca Mg K Na Al As Ba Be Ag Cd Cr Cu GW-17 09/30/2013 12 3.3 1.8 11 480 <2 52 <2 <2 <2 <2 <2 10/01/2013 19 8.0 6.0 32 17000 2 500 2 <2 <2 7 46 10/02/2013 17 4.7 1.5 15 2400 <2 64 <1 <2 <2 <2 6 08/12/2014 12.6 3.51 1.82 11.2 <20 <1 47.3 <1 <0.5 <0.5 <1 6.68 07/15/2015 12.3 3.32 1.75 9.54 <20 <1 43.4 <1 <0.5 <0.5 <1 <10 08/10/2016 11.8 3.39 1.66 9.33 <20 <1 45.0 <1 <0.5 <0.5 <1 5.09 Fe Hg Mn Mo Ni Pb Se Sb TI V Zn GW-17 09/30/2013 360 0.2 37 <2 <2 <10 <2 1 <2 100 10/01/2013 16000 <0.1 790 6 22 <10 2 <1 14 220 10/02/2013 880 <0.1 44 <2 <2 <10 <2 <1 <2 250 10/23/2013 1380 10/25/2013 98.2 08/12/2014 374 <0.2 10.5 <2 (<5 0.976 <5 <1 <1 <3 532 07/15/2015 206 <0.2 12.6 <2 <5 <0.5 <5 <1 <1 <3 521 11/18/2015 10500 08/10/2016 196 <0.2 4.45 <2 <5 <0.5 <5 <1 <1 <3 239 Cations reported as mg/L.All other metals reported as ug/L. ALPINE COUNTY SURFACEWATERS • Site: SW-01 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson R Woodfords ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 01/05/16 1.2 7.09 38.6 1.20 1.06 67 86 2.04 0.016 < 0.010 1.38 02/02/16 0.0 7.13 28.1 5.40 15.80 64 71 2.64 0.055 < 0.010 1.47 03/01/16 2.5 6.17 30.1 2.40 4.78 59 68 2.50 0.025 0.013 1.09 04/05/16 2.4 7.17 22.6 6.60 17.70 54 51 1.09 0.042 < 0.010 1.03 05/03/16 4.7 5.85 24.6 2.00 4.36 54 52 0.95 0.015 0.012 0.81 06/15/16 7.5 7.50 23.3 3.40 14.20 43 47 < 0.50 0.037 < 0.010 0.88 07/06/16 12.0 6.68 29.2 2.10 3.38 51 58 0.68 0.026 < 0.010 1.13 08/02/16 13.5 7.25 34.8 0.88 1.98 55 73 0.99 0.023 0.012 1.54 09/07/16 12.9 7.87 36.2 0.82 1.34 58 75 1.07 0.029 0.010 1.70 10/06/16 5.5 7.48 36.6 0.47 0.53 64 75 1.16 0.020 < 0.010 1.61 11/02/16 3.0 6.54 26.3 1.10 1.99 52 57 1.26 0.013 < 0.010 0.91 12/06/16 0.2 6.80 35.3. 0.51 0.58 60 77 1.42 0.010 < 0.010 1.25 Maximum 13.5 7.87 38.6 6.60 17.70 67 86 2.64 0.055 0.013 1.70 Minimum 0.0 5.85 22.6 0.47 0.53 43 47 < 0.50 0.010 < 0.010 < 0.81 Average 5.5 6.96 30.5 2.24 5.64 57 66 1.36 0.026 0.011 1.23 #Tests 12 12 12 12 12 12 12 12 12 12 0 12 Site: SW-01 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson R Woodfords ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 01/05/16 0.099 < 0.020 < 0.010 0.014 0.113 9.38 2.34 4.71 0.360 22.70 02/02/16 0.336 < 0.020 < 0.010 0.182 0.518 7.56 1.95 3.94 0.330 22.90 03/01/16 0.203 < 0.020 < 0.010 0.040 0.243 7.64 1.80 3.74 0.320 22.60 04/05/16 0.201 < 0.020 < 0.010 0.059 0.260 5.57 1.56 2.72 0.260 21.50 05/03/16 0.124 < 0.020 < 0.010 < 0.010 0.124 6.06 1.50 2.76 0.260 21.20 06/15/16 0.146 < 0.020 < 0.010 < 0.010 0.146 5.42 1.45 2.32 0.230 19.70 07/06/16 0.111 < 0.020 < 0.010 < 0.010 0.111 6.68 1.58 2.79 0.250 19.80 08/02/16 0.105 < 0.020 < 0.010 0.013 0.118 7.70 2.01 4.02 0.330 22.90 09/07/16 0.111 < 0.020 < 0.010 < 0.010 0.111 8.16 2.07 4.40 0.360 23.50 10/06/16 0.055 < 0.020 < 0.010 < 0.010 0.055 7.68 2.03 4.41 0.370 24.50 11/02/16 0.143 < 0.020 < 0.010 < 0.010 0.143 6.70 1.54 2.78 0.250 20.00 12/06/16 < 0.050 < 0.020 < 0.010 < 0.010 < 0.050 8.70 1.91 3.95 0.320 21.60 Maximum 0.336 0.020 < 0.010 0.182 0.518 9.38 2.34 4.71 0.370 24.50 Minimum < 0.050 < 0.020 < 0.010 < 0.010 < 0.050 5.42 1.45 2.32 0.230 19.70 Average 0.140 0.020 < 0.010 0.032 0.166 7.27 1.81 3.55 0.303 21.91 #Tests 12 12 12 12 12 0 0 0 12 12 12 12 12 Site: SW-01 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson R Woodfords ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 01/05/16 60 2 11.10 2.95 02/02/16 548 3 12.10 2.76 03/01/16 166 5 12.74 2.69 04/05/16 205 5 13.60 1.48 05/03/16 236 2 11.71 1.40 06/15/16 613 2 10.00 1.19 07/06/16649 4 9.75 1.34 08/02/16 727 7 10.66 1.54 09/07/16 345 1 8.42 1.74 10/06/16 86 2 10.40 1.88 11/02/16 249 < 1 11.96 1.91 12/06/16 75 < 1 17.80 2.40 Maximum 727 7 0 0 0 0 0 0 0 17.80 2.95 Minimum 60 < 1 0 0 0 0 0 0 0 8.42 1.19 Average 330 3 11.69 1.94 #Tests 12 12 0 0 0 0 0 0 0 0 12 12 0 Site: SW-01 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson R Woodfords ALPINE COUNTY SURFACEWATER QUALITY DATA From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 81 8.1 7.70 32 0.68 2 56 71 1.3 0.02 0.01 1.30 82 5.2 7.58 25 1.70 6 46 54 0.02 0.01 0.92 83 6.1 7.67 27 2.07 7 46 56 0.5 0.02 0.02 1.03 84 5.7 7.40 30 1.60 5 49 58 0.7 0.03 0.03 1.15 85 5.8 7.69 33 1.20 3 48 65 0.7 0.02 0.29 1.27 86 4.7 7.64 27 1.49 5 51 57 0.8 0.03 0.02 1.10 87 6.8 7.18 35 0.66 2 55 73 0.8 0.02 0.01 1.45 88 7.0 7.07 35 0.73 2 56 75 1.0 0.01 0.30 1.29 89 5.7 7.57 30 1.49 5.5 49 71 1.3 0.02 0.02 1.87 90 7.4 7.68 33 0.97 4.2 53 80 1.1 0.02 0.01 0.02 1.34 91 7.8 7.71 33 1.37 5.2 53 75 1.2 0.03 0.01 0.02 1.32 92 8.0 7.99 34 0.90 2.3 58 81 1.2 0.02 0.01 0.02 1.27 93 6.2 7.95 30 1.67 5.8 53 68 1.4 0.03 0.01 0.02 1.20 94 6.4 7.61 34 0.71 2.1 56 78 1.1 0.02 0.01 0.02 1.35 95 5.3 7.52 27 1.68 10.8 49 64 1.2 0.03 0.01 0.02 1.23 96 6.5 7.47 28 1.11 4.8 53 61 1.0 0.02 0.01 0.01 1.20 97 6.0 7.24 29 0.83 2.1 49 62 1.0 0.07 0.01 0.01 1.21 98 5.1 6.87 29 1.28 4.4 49 62 1.3 0.03 0.01 0.02 1.21 99 5.9 7.17 29 0.68 2.7 53 70 1.4 0.02 < 0.01 0.01 1.33 00 5.8 7.24 31 1.60 9.1 54 61 1.3 0.03 0.01 0.02 1.32 01 6.3 7.10 33 1.42 3.8 56 72 1.4 0.02 0.02 0.01 1.41 02 5.6 7.38 32 1.48 2.8 57 70 1.7 0.02 0.01 0.01 1.30 03 5.1 7.48 31 5.09 10.9 54 67 1.7 0.02 0.01 0.02 1.29 04 5.4 7.25 31 4.28 9.5 55 66 1.8 0.03 0.02 0.02 1.28 • 05 4.9 7.35 32 2.13 5.7 57 55 2.2 0.02 0.01 0.02 1.26 06 5.1 7.06 26 2.94 6.3 49 40 1.4 0.02 0.01 0.02 1.10 07 6.7 7.28 31 1.77 3.8 57 65 1.4 0.01 0.01 0.01 1.36 08 5.8 7.87 32 1.44 2.4 54 69 1.6 0.01 0.01 0.01 1.33 09 5.0 7.43 31 3.17 4.4 54 66 1.3 0.02 0.01 0.01 1.27 10 4.5 7.34 30 2.68 5.1 53 66 1.3 0.02 0.01 < 0.01 1.30 11 4.1 7.53 29 3.22 5.9 53 59 1.0 0.02 0.01 0.01 1.16 12 5.8 6.98 34 1.56 2.5 56 70 1.1 0.02 0.01 0.01 1.42 13 5.8 6.91 32 1.54 2.7 53 67 1.1 0.02 0.01 0.01 1.20 14 5.8 7.27 35 - 1.06 2.7 58 78 1.3 0.02 0.01 0.01 1.38 15 6.5 6.78 35 1.22 2.3 58 76 1.2 0.02 0.01 0.01 1.34 16 5.5 6.96 30 2.24 5.6 57 66 1.4 0.03 0.01 1.23 Maximum 8.1 7.99 35 5.09 10.9 58 81 2.2 0.07 0.02 0.30 1.87 Minimum 4.1 6.78 25 0.66 2.0 46 40 0.5 0.01 < 0.01 0.01 0.92 Average 5.9 7.39 31 1.71 4.7 53 66 1.2 0.02 0.01 0.03 1.28 #Tests 36 36 36 36 36 36 36 35 36 27 35 36 Site: SW-01 SOUTH TAHOE PUBLIC UTILITY DISTRICT , Stream: Carson R Woodfords ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 81 0.17 0.04 0.37 5 1 1 82 0.09 0.02 0.17 6 1 < 1 83 0.13 0.02 < 0.01 0.02 0.17 5 1 < 1 84 0.22 0.07 < 0.01 0.01 0.24 7 1 < 1 6.02 1.71 2.71 0.25 19.7 85 0.14 0.03 < 0.01 0.02 0.17 4 1 < 1 6.89 1.84 3.11 0.27 20.1 86 0.13 0.03 < 0.01 0.02 0.16 4 1 < 1 5.80 1.64 2.55 0.24 19.4 87 0.15 0.03 < 0.01 0.01 0.17 4 1 < 1 7.31 2.03 3.54 0.29 21.1 88 0.15 0.03 < 0.01 0.02 0.18 5 1 < 1 7.86 2.20 3.69 0.29 20.7 89 0.16 0.03 < 0.01 0.03 0.20 7 1.1 < 1 6.76 1.82 2.93 0.25 18.7 90 0.11 0.02 < 0.01 0.02 0.15 5 1.0 < 1 7.51 2.05 3.48 0.29 20.5 91 0.13 0.03 0.01 0.03 0.17 9 1.1 < 1 7.36 2.00 3.43 0.28 20.7 92 0.14 0.03 0.01 0.02 0.17 8 1.3 1 8.12 1.98 3.58 0.28 20.3 93 0.33 0.03 0.01 0.03 0.36 11 1.4 < 1 7.22 1.88 3.33 0.28 20.4 94 0.19 0.03 0.01 0.01 0.21 < 5 1.0 1 7.58 1.95 3.82 0.31 22.2 95 0.20 0.04 0.01 0.02 0.23 8 1.3 1 6.58 1.81 3.28 0.28 21.4 96 0.21 0.02 0.01 0.04 0.26 6 1.1 1 6.38 1.68 3.11 0.27 21.4 97 0.19 0.05 0.01 0.09 0.29 5 1.0 4 6.63 1.83 3.30 0.29 21.7 98 0.18 0.03 0.01 0.03 0.22 5 1.0 < 1 6.20 1.68 3.14 0.28 21.9 99 0.17 0.03 < 0.01 0.03 0.21 < 5 1.1 6.60 1.81 3.47 0.31 22.5 00 0.20 0.02 < 0.01 0.01 0.22 5 1.2 5.92 1.84 3.46 0.32 23.7 01 0.16 0.02 < 0.01 0.01 0.19 15 1.1 7.20 1.97 3.84 0.32 23.0 02 0.24 0.03 < 0.01 0.02 0.26 5 0.7 6.93 1.90 3.86 0.33 23.7 03 0.18 0.03 0.01 0.02 0.21 6 0.9 6.91 1.90 3.63 0.31 22.7 04 0.16 0.04 0.01 0.02 0.18 9 0.8 6.70 1.92 3.54 0.31 22.4 05 0.15 0.02 < 0.01 0.03 0.19 12 1.2 7.01 1.87 3.55 0.30 22.0 06 0.11 0.03 < 0.01 0.02 0.13 10 1.2 5.98 1.64 3.08 0.28 22.2 07 0.25 0.02 < 0.01 0.02 0.28 9 1.1 7.19 1.93 3.84 0.32 22.9 08 0.14 < 0.02 < 0.01 0.01 0.17 9 1.0 7.27 1.90 3.79 0.32 22.7 09 0.17 < 0.02 < 0.01 0.01 0.19 8 0.9 7.08 1.87 3.58 0.31 22.2 10 0.09 < 0.02 < 0.01 0.01 0.12 12 1.8 6.92 1.90 3.44 0.30 21.6 11 0.09 < 0.04 < 0.01 0.03 0.12 7 1.3 6.27 1.70 3.12 0.28 21.6 12 0.13 0.02 < 0.01 0.01 0.16 1.4 7.40 1.94 3.71 0.31 21.9 13 0.14 0.03 < 0.01 0.01 0.14 1.1 7.33 1.80 3.46 0.29 21.4 14 0.12 0.03 < 0.01 0.01 0.12 1.1 7.84 2.03 4.05 0.33 22.8 15 0.12 0.02 < 0.01 0.01 0.12 8.28 2.08 3.96 0.32 21.8 16 0.14 0.02 < 0.01 0.03 0.17 7.27 1.81 3.55 0.30 21.9 Maximum 0.33 0.07 0.01 0.09 0.37 15 1.8 4 8.28 2.20 4.05 0.33 23.7 Minimum 0.09 0.02 < 0.01 0.01 0.12 4 0.7 < 1 5.80 1.64 2.55 0.24 18.7 Average 0.16 0.03 0.01 0.02 0.20 7 1.1 1 6.98 1.88 3.45 0.29 21.6 #Tests 36 36 34 34 36 31 34 18 33 33 33 33 33 Site: SW-01 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson R Woodfords ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Coliforms Fecal/ Fecal <--------------------Blue Green Algae --> Single Hard- Total E.coli Strep <-----Colonies-----> <-----Filaments > <---Filamaments-> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 81 307 226 184 23 208 27 221 8 487 3 82 123 38 31 16 77 50 731 17 445 26 83 260 135 47 22 427 92 1,015 35 790 22 9.87 <, 0.01 25 84 419 55 48 293 4 61 970 226 2,220 52 9.38 1.17 25 85 165 45 48 0 0 286 43 196 10 0 9.92 0.73 27 86 175 43 100 0 0 45 92 92 3 69 10.42 9.57 23 87 140 74 37 0 0 46 623 139 3 27,077 9.78 4.88 27 88 294 < 30 43 0 0 0 0 1,085 54 0 11.71 • 3.61 89 271 48 285 0 0 0 0 439 22 231 10.23 3.82 90 163 50 156 0 0 0 0 0 0 0 9.25 3.97 25 91 153 37 40 0 0 6 115 0 0 0 8.94 4.08 23 92 164 26 130 0 0 0 0 0 0 0 9.88 4.16 26 93 176 41 40 0 0 15 50 0 0 0 10.02 3.86 22 94 118 32 37 0 0 0 4 0 0 0 9.94 4.70 25 95 73 31 35 0 0 0 33 0 0 0 10.24 4.32 21 96 142 33 35 0 0 0 0 0 0 0 10.56 2.34 22 97 75 30 130 0 0 0 0 0 0 0 10.75 2.81 25 98 67 31 60 0 0 29 179 0 0 0 9.44 2.27 19 99 110 32 130 0 0 3 29 0 0 0 10.10 2.37 00 38 < 28 < 30 0 0 0 0 0 0 0 10.24 2.30 01 44 16 < 30 0 0 0 0 0 0 0 9.58 2.02 02 37 9 107 0 0 4 113 0 0 0 9.37 2.15 03 65 21 21 0 0 0 0 0 0 0 10.06 2.04 04 60 5 22 0 0 0 0 0 0 0 9.93 1.99 05 26 11 8 0 0 94 782 0 0 0 10.74 2.09 06 119 54 < 3 0 0 0 0 0 0 0 10.24 1.39 07 23 6 < 26 0 0 0 0 0 0 0 9.59 1.85 08 40 4 117 0 0 0 0 0 0 0 10.30 2.32 09 244 16 4 0 0 0 0 0 0 0 10.14 2.03 10 228 32 < 3 0 0 3 85 0 0 0 9.28 1.99 11 70 22 4 0 0 3 28 0 0 0 10.52 1.38 12 63 14 6 0 0 0 0 0 0 0 9.67 1.90 13 480 10 4 0 0 0 0 0 0 0 10.52 2.25 14 518 25 4 0 0 0 0 0 0 0 9.75 2.18 15 588 7 10.44 2.22 16 330 3 11.69 1.94 Maximum 588 226 285 293 427 286 1,015 1,085 2,220 27,077 11.71 9.57 27 Minimum 23 3 3 0 0 0 0 0 0 0 8.94 < 0.01 19 Average 177 37 59 10 21 22 150 66 119 808 10.07 2.73 24 #Tests 36 36 34 34 34 34 34 34 34 34 34 34 14 Site: SW-01 Nitrate-Nitrogen Total Phosphorus 0.5 0.5 0.4 0.4 0.3 0.3 J - J 01 E - E - 0.2 0.2 0.1 0.1 0.0 0.0 O^ O� Oh O^ 03C' ON 9 CP 4 ' O' .4' 4' 4 O4" 4 OA Oy 4 95' O^ 9 Oh 41 Oma' ON CP CP CS‘ t Nitrate Linear(Nitrate) —0—Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 10 _ 250 9 - 8 - 200 7 - - 6 : 150 J - J E 5 - E - 4 : 100 3 = - 2 = 50 • •�-_• 1;+ 1 - 0 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 cgs 4i' Oh 01 4, 4' CP OP <&\ Oma' O^ O' Oh 01 CP ^N . ^h —•—Chlorides Linear(Chlorides) --•—TDS Linear(TDS) Site: SW-02 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA • 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 03/01/16 4.8 7.59 37.8 2.10 0.28 76 79 2.21 0.017 < 0.010 1.39 04/05/16 9.4 7.64 40.4 2.10 0.02 78 85.9 2.61 0.017 0.012 1.56 05/03/16 7.8 7.26 44.0 2.30 0.46 88 100 1.750 0.031 0.012 1.45 06/15/16 11.2 7.33 38.2 1.70 0.80 72 74 0.589 0.018 < 0.010 1.31 07/06/16 18.3 6.15 72.8 1.30 1.52 119 180 1.290 0.097 0.013 2.17 08/02/16 Dry 09/07/16 Dry 10/06/16 Dry 11/02/16 6.8 6.61 41.8 2.70 0.35 91 88 2.010 0.023 0.014 1.37 Maximum 18.3 7.64 72.8 2.70 1.52 119 180 2.610 0.097 0.014 2.17 Minimum 4.8 6.15 37.8 1.30 0.02 72 74 0.589 0.017 < 0.010 < 1.31 Average 9.7 7.10 45.8 2.03 0.57 87 101 1.743 0.034 0.012 1.54 #Tests 6 6 6 6 6 6 6 6 6 6 0 6 Site: SW-02 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 03/01/16 0.210 < 0.020 < 0.010 < 0.010 0.210 6.84 1.70 7.52 0.670 38.80 04/05/16 0.177 < 0.020 < 0.010 < 0.010 0.177 7.64 2.02 8.58 0.710 38.80 05/03/16 0.199 < 0.020 < 0.010 < 0.010 0.199 7.82 1.91 9.14 0.760 40.50 06/15/16 0.159 < 0.020 < 0.010 < 0.010 0.159 6.87 1.72 6.20 0.550 34.20 07/06/16 0.240 < 0.020 < 0.010 < 0.010 0.240 15.50 3.63 9.87 0.590 27.60 08/02/16 09/07/16 10/06/16 11/02/16 0.170 < 0.020 < 0.010 0.015 0.185 7.88 1.83 8.33 0.690 38.50 Maximum 0.240 < 0.020 < 0.010 < 0.015 0.240 15.50 3.63 9.87 0.760 40.50 Minimum < 0.159 < 0.020 < 0.010 < 0.010 0.159 6.84 1.70 6.20 0.550 27.60 Average 0.193 < 0.020 < 0.010 < 0.011 0.195 8.76 2.14 8.27 0.662 36.40 #Tests 6 6 6 6 6 0 0 0 6 6 6 6 6 Site: SW-02 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 03/01/16 605 < 1 11.60 1.29 04/05/16 866 < 1 9.51 0.97 05/03/16 649 < 1 9.59 1.19 06/15/16 1,733 13 8.19 < 0.50 07/06/16 1,414 4 4.35 < 0.50 08/02/16 09/07/16 10/06/16 11/02/16 866 35 8.20 1.90 Maximum 1,733 35 0 0 0 0 0 0 0 11.60 1.90 Minimum 605 < 1 0 0 0 0 0 0 0 4.35 < 0.50 Average 1,022 98.57 1.06 #Tests 6 6 0 0 0 0 0 0 0 0 6 6 0 Site: SW-02 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 81 13.8 7.33 54 6.50 3 109 162 1.8 0.05 0.01 1.94 82 83 8.6 7.56 39 5.13 3 72 69 0.7 0.02 0.04 1.40 84 8.4 7.71 40 2.36 6 64 76 0.8 0.03 0.02 1.48 85 86 87 5.2 7.55 48 2.20 1 70 80 1.1 0.02 < 0.01 1.50 88 6.3 6.90 46 1.97 1 81 92 1.2 0.02 0.01 1.25 89 5.9 7.47 44 2.86 2.0 79 94 1.3 0.02 0.02 1.30 90 4.5 7.42 44 2.82 2.0 77 108 1.1 0.02 0.01 1.32 91 7.9 8.10 47 4.90 2.3 81 106 1.7 0.03 0.01 0.01 1.57 92 9.0 7.52 54 4.01 4.3 90 105 1.4 0.05 0.01 0.02 1.51 93 8.7 7.51 44 3.06 1.1 80 93 1.8 0.04 0.02 0.02 1.64 94 5.5 7.14 47 3.09 1.0 79 97 1.4 0.03 0.01 0.02 1.37 95 8.4 7.63 44 2.51 1.4 79 90 1.4 0.03 0.02 0.01 1.48 96 9.5 7.45 52 3.37 2.9 82 104 1.9 0.04 0.01 0.01 1.79 97 8.2 7.43 57 4.38 13.2 86 111 0.9 0.06 0.01 0.02 1.70 98 7.5 7.30 55 2.35 2.2 85 109 1.0 0.03 0.01 0.01 1.58 99 8.5 7.19 52 2.03 1.9 81 104 0.9 0.03 0.01 0.02 1.53 00 9.3 7.28 58 1.63 1.2 88 109 1.3 0.04 0.01 0.02 1.63 01 5.0 7.29 50 2.04 1.8 82 98 1.5 0.02 0.03 0.01 1.33 02 6.9 7.14 45 2.19 3.5 78 91 1.7 0.02 0.01 0.02 1.49 03 9.4 7.55 45 1.63 1.0 78 85 1.4 0.02 0.01 0.03 1.48 04 8.6 7.23 46 2.17 1.5 77 89 1.4 0.02 < 0.01 0.02 1.45 05 8.6 7.27 46 1.73 1.1 77 80 1.8 0.02 0.01 0.02 1.35 06 9.1 6.92 44 2.38 3.0 76 69 1.0 0.03 0.01 0.02 1.42 07 9.4 7.51 50 1.77 0.7 81 98 1.2 0.03 0.01 0.01 1.52 08 7.9 7.59 45 1.77 2.0 72 89 1.7 0.03 0.01 < 0.01 1.59 09 9.4 7.20 46 2.20 1.0 80 92 1.2 0.02 0.01 < 0.01 1.72 10 8.3 7.35 40 2.33 1.2 72 84 1.0 0.03 0.01 < 0.01 1.72 11 9.2 7.58 48 3.99 2.5 85 93 1.3 0.04 0.01 0.01 2.29 12 9.4 7.17 55 1.72 1.6 84 105 0.7 0.03 0.01 < 0.01 1.53 13 6.1 6.95 44 1.34 0.1 75 85 0.9 0.04 0.01 0.01 1.29 14 5.9 7.01 39 2.57 1.4 73 80 1.3 0.02 0.01 0.02 1.47 15 5.9 6.94 41 3.20 0.4 84 87 0.9 0.02 0.01 0.01 1.44 16 9.7 7.10 46 2.03 0.6 87 101 1.7 0.03 0.01 1.54 Maximum 13.8 8.10 58 6.50 13.2 109 162 1.9 0.06 0.03 0.04 2.29 Minimum 4.5 6.90 39 1.34 0.1 64 69 0.7 0.02 < 0.01 < 0.01 1.25 Average 8.0 7.34 47 2.73 2.2 80 95 1.3 0.03 0.01 0.02 1.53 t #Tests 33 33 33 33 33 33 33 33 33 26 32 33 Site: SW-02 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mq/L mg/L mg/L % 81 0.41 0.10 0.60 9 < 1 < 1 82 83 0.25 0.05 < 0.01 0.01 0.18 8 1 < 1 84 0.49 0.05 < 0.01 < 0.01 0.51 9 1 < 1 7.77 1.95 4.48 0.37 24.8 85 86 87 0.17 < 0.02 < 0.01 0.02 0.22 6 1 < 1 9.80 2.50 7.10 0.52 29.6 88 0.19 0.03 < 0.01 0.01 0.20 9 1 < 1 9.15 2.38 6.77 0.51 30.1 89 0.20 0.02 < 0.01 0.02 0.23 9 1.0 < 1 8.50 2.06 6.85 0.55 32.4 90 0.14 0.02 < 0.01 0.01 0.17 8 1.2 < 1 8.77 2.15 6.93 0.54 31.9 91 0.25 0.03 0.01 0.01 0.28 9 1.1 < 1 9.24 2.29 7.10 0.54 30.9 92 0.28 0.03 0.01 0.02 0.31 9 1.4 1 10.99 2.49 8.08 0.57 31.2 93 0.36 0.02 0.01 0.02 0.39 24 1.2 < 1 9.25 2.29 7.05 0.54 31.0 94 0.26 0.02 0.01 0.02 0.29 < 5 1.0 < 1 9.24 2.30 7.97 0.61 33.8 95 0.28 0.05 0.01 0.02 0.31 8 1.2 1 9.08 2.15 6.15 0.48 28.9 96 0.32 0.02 0.01 0.03 0.36 7 1.2 1 10.77 2.67 7.07 0.49 27.8 97 0.32 0.02 0.01 0.10 0.43 9 1.1 3 12.43 3.10 7.21 0.46 25.9 98 0.26 0.02 < 0.01 0.02 0.29 5 1.0 < 1 11.23 2.74 6.51 0.46 26.1 99 0.24 0.02 < 0.01 0.02 0.27 6 1.0 10.56 2.64 6.47 0.46 26.6 00 0.25 0.02 < 0.01 < 0.01 0.25 7 0.9 10.88 2.82 7.41 0.52 28.6 01 0.25 0.02 < 0.01 0.02 0.27 20 1.1 9.49 2.39 7.68 0.58 32.4 02 0.26 0.03 < 0.01 0.03 0.30 < 5 0.8 8.02 2.10 7.72 0.64 36.0 03 0.22 0.02 0.01 0.01 0.24 7 0.8 8.38 2.20 6.48 0.52 31.1 04 0.21 0.03 < 0.01 < 0.01 0.23 7 1.1 8.47 2.20 6.45 0.52 31.2 05 0.28 0.02 < 0.01 0.01 0.30 12 1.8 8.39 2.18 6.23 0.50 30.4 06 0.16 0.02 < 0.01 < 0.01 0.18 10 1.0 8.59 2.16 5.87 0.46 28.7 07 0.16 0.05 < 0.01 < 0.01 0.19 8 1.0 ' 9.56 2.41 8.01 0.60 33.0 08 0.15 < 0.02 < 0.01 0.01 0.18 8 0.9 8.52 2.06 7.06 0.57 32.8 09 0.30 < 0.02 < 0.01 < 0.01 0.32 19 0.8 8.76 2.16 7.30 0.58 33.3 10 0.17 < 0.02 < 0.01 < 0.01 0.19 13 1.3 8.04 2.09 6.17 0.51 30.8 11 0.25 0.02 < 0.01 0.01 0.28 12 1.5 8.95 2.36 6.82 0.53 30.1 12 0.18 0.02 < 0.01 < 0.01 0.20 1.4 10.36 2.50 7.86 0.57 31.2 13 0.16 0.02 < 0.01 0.01 0.17 1.2 7.88 1.93 7.80 0.65 36.9 14 0.19 0.02 < 0.01 0.01 0.20 1.3 6.81 1.69 7.95 0.71 40.1 15 0.22 < 0.02 < 0.01 0.01 0.22 6.97 1.78 9.24 0.81 43.3 16 0.19 < 0.02 < 0.01 < 0.01 0.20 8.76 2.14 8.27 0.66 36.4 Maximum 0.49 0.10 0.01 0.10 0.60 24 1.8 3 12.43 3.10 9.24 0.81 43.3 Minimum 0.14 < 0.02 < 0.01 < 0.01 0.17 < 5 0.8 < 1 6.81 1.69 4.48 0.37 24.8 Average 0.24 0.03 0.01 0.02 0.27 10 1.1 1 9.15 2.29 7.10 0.55 31.5 #Tests 33 33 32 32 33 28 31 15 31 31 31 31 31 Site: SW-02 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Coliforms Fecal/ Fecal <---- Blue Green Algae > Single Hard- Total E.coli Strep < Colonies---> <----Filaments-----> <-Filamaments---> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 81 3,820 283 2,315 5 10 37 452 0 0 2 82 83 336 73 33 0 0 6 32 2 30 0 8.85 2.34 32 84 3,140 122 180 155 105 3 5 347 209 44 8.61 1.10 29 85 86 87 40 < 30 < 30 0 0 0 0 0 0 0 9.10 3.40 88 107 32 90 0 0 92 877 46 1 92 9.43 3.58 89 86 31 58 0 0 79 1,968 35 213 0 9.28 3.77 90 112 30 72 0 0 0 0 0 0 323 7.53 3.75 33 91 130 40 40 0 0 0 0 0 0 0 7.41 4.35 30 92 372 73 150 5 91 86 201 0 0 0 8.82 4.55 38 93 810 261 150 0 - 0 4 95 0 0 0 8.15 4.09 28 94 753 31 90 0 0 0 0 0 0 0 8.13 5.04 58 95 793 243 230 0 0 0 0 0 0 0 8.81 4.35 30 96 1,956 529 770 0 0 0 0 0 0 0 8.53 2.93 35 97 1,567 497' 155 0 0 3 53 0 0 0 8.74 3.36 45 98 982 562 160 0 0 0 0 0 0 0 8.92 2.63 42 99 863 90 < 30 0 0 0 0 0 0 0 8.34 2.99 00 434 79 65 0 0 0 0 0 0 0 7.76 1.31 01 128 73 90 0 0 0 0 0 0 0 8.70 0.63 02 81 13 68 0 0 41 375 0 0 0 8.55 0.70 03 141 35 33 0 0 0 0 0 0 0 7.34 0.59 04 271 27 68 0 0 0 0 0 0 0 7.97 0.67 05 220 84 220 0 0 0 0 0 0 0 8.60 0.47 06 746 320 235 0 0 0 0 0 0 0 7.30 0.43 07 673 145 97 0 0 0 0 0 0 0 7.99 0.65 08 111 20 68 0 0 5 15 0 0 0 7.83 0.61 09 2,024 96 43 0 0 0 0 0 0 0 6.86 0.46 10 1,631 186 4 0 0 3 65 0 0 0 5.80 0.60 11 1,768 1,412 19 0 0 0 0 0 0 0 7.95 < 0.50 12 323 186 3 0 0 0 0 0 0 0 6.48 < 0.50 13 44 20 3 0 0 0 0 0 0 0 8.09 0.58 14 110 4 4 0 0 0 0 0 0 0 8.71 1.00 15 359 3 7.19 1.40 16 1,022 9 8.57 1.06 Maximum 3,820 1,412 2,315 155 105 92 1,968 347 213 323 9.43 5.04 58 Minimum - 40 3 < 3 0 0 0 0 0 0 0 5.80 0.43 28 Average 786 171 180 5 7 12 133 14 15 15 8.13 2.01 36 #Tests 33 33 31 31 31 31 31 31 31 31 32 32 11 Site: SW-02 Nitrate-Nitrogen Total Phosphorus 0.5 0.5 0.4 0.4 0.3 0.3 J _J E - E - 0.2 0.2 0.1 0.1 0.0 0.0 - 0^ 0;' 0h 01 09 0 0' 0 0 CP ON Oma' 0 O\ O0' '.^ '�' 4 4\ 0 00' 01 01 0°' O^ 95' Oh 01 00' '.' '.' 4' t Nitrate Linear(Nitrate) —+—Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 10 - 250 9 8 : 200 7 6 : 150 J J ' E 5 E 4 _ 100 3 2 - 50 1 0 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 O` 00 0' 01 00' 0^ 0 0 01 0 O^ O5 0 O\ O°' '.." —�Chlorides Linear(Chlorides) TDS Linear(TDS) Site: SW-03 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Mid ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 03/01/16 5.1 6.23 30.3 3.90 10.90 58 70.1 2.57 0.029 < 0.010 1.18 04/05/16 8.0 7.13 26.6 6.50 9.82 59 57.8 1.23 0.045 < 0.010 1.12 05/03/16 9.2 6.57 33.6 2.20 11.80 68 73 1.31 0.069 0.015 1.06 06/15/16 11.8 7.61 87.1 4.00 3.24 132 188 3.18 0.065 _ 0.020 1.80 07/06/16 16.2 7.07 42.3 112.00 218.00 90 94 1.78 0.797 0.022 2.14 08/02/16 17.2 6.90 97.1 6.00 16.40 139 196 3.24 0.155 0.020 2.25 09/07/16 12.3 7.66 102.0 2.50 3.29 148 201 3.32 0.325 0.021 2.15 10/06/16 11.2 7.39 98.1 6.10 16.00 148 199 3.40 0.076 0.022 2.00 11/02/16 3.3 6.50 26.5 6.00 13.90 57 57 1.29 0.037 < 0.010 1.16 Maximum 17.2 7.66 102.0 112.00 218.00 148 201 3.40 0.797 0.022 2.25 Minimum 3.3 6.23 26.5 2.20 3.24 57 57 1.23 0.029 < 0.010 1.06 Average 10.5 7.01 60.4 16.58 33.71 100 126 2.37 0.178 0.017 1.65 #Tests 9 9 9 9 9 9 9 9 9 9 0 9 Site: SW-03 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Mid ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 03/01/16 0.222 < 0.020 < 0.010 < 0.010 0.222 7.58 1.84 3.99 0.340 23.70 04/05/16 0.184 < 0.020 < 0.010 0.079 0.263 6.22 1.74 3.22 0.290 22.50 05/03/16 0.110 < 0.020 < 0.010 0.018 0.128 7.76 2.08 4.06 0.330 23.20 06/15/16 0.176 0.021 < 0.010 0.022 0.198 19.80 6.03 10.70 0.540 23.30 07/06/16 1.400 0.026 < 0.010 0.067 1.470 9.25 2.55 4.70 0.350 22.00 08/02/16 0.147 < 0.020 < 0.010 0.013 0.160 19.60 6.32 11.10 0.560 23.70 09/07/16 0.124 < 0.020 < 0.010 0.015 0.139 21.00 6.94 12.10. 0.580 23.90 10/06/16 0.097 < 0.020 < 0.010 0.017 0.114 20.90 6.66 12.00 0.580 24.10 11/02/16 0.148 < 0.020 < 0.010 < 0.010 0.148 6.66 1.48 2.98 0.270 21.10 • Maximum 1.400 0.026 < 0.010 0.079 1.470 21.00 6.94 12.10 0.580 24.10 Minimum 0.097 < 0.020 < 0.010 < 0.010 0.114 6.22 1.48 2.98 0.270 21.10 Average 0.290 0.021 < 0.010 0.028 0.316 13.20 3.96 7.21 0.427 23.06 #Tests 9 9 9 9 9 0 0 0 9 9 9 9 9 Site: SW-03 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Mid ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 03/01/16 160 3 11.83 2.84 04/05/16 387 5 11.70 1.92 05/03/16 155 2 10.28 3.18 06/15/16 3,050 1,120 8.28 6.61 07/06/16 81,640 19,350 7.58 3.07 08/02/16 1,300 435 8.91 3.71 09/07/16 687 37 8.98 3.10 10/06/16 1,990 19 8.65 4.24 11/02/16 770 16 11.50 2.06 Maximum 81,640 19,350 0 0 0 0 0 0 0 11.83 6.61 Minimum 155 2 0 0 0 0 0 0 0 7.58 1.92 Average 10,015 2,332 9.75 3.41 #Tests 9 9 0 0 0 0 0 0 0 0 9 9 0 Site: SW-03 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Mid ALPINE COUNTY SURFACEWATER QUALITY DATA From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 81 9.7 7.43 67 3.70 3 229 390 3.6 0.06 0.08 3.14 82 10.1 7.42 62 5.15 6 158 233 0.11 0.08 3.20 83 7.2 8.41 62 7.17 7 145 221 25.3 0.12 0.08 2.80 84 7.5 7.47 60 4.20 4 109 154 11.7 0.11 0.02 2.31 85 10.4 7.43 46 4.40 5 110 125 8.4 0.14 0.04 3.03 86 5.5 7.77 57 4.70 2 115 176 14.6 0.07 0.04 1.97 • 87 8.8 7.18 71 3.03 4 149 230 20.7 0.06 0.06 2.00 88 9.9 7.13 81 16.71 11 168 241 18.6 0.11 0.08 2.43 89 9.2 7.43 78 6.48 4.7 126 183 8.9 0.08 0.03 1.63 90 8.9 7.49 74 5.42 3.3 114 195 5.8 0.08 0.03 0.04 1.61 91 10.3 7.42 95 8.64 5.1 146 202 7.7 0.11 0.02 0.04 2.35 92 10.6 7.47 103 8.20 4.0 151 216 6.1 0.12 0.03 0.05 2.05 93 9.8 7.33 85 7.77 3.8 146 213 8.1 0.11 0.04 0.04 2.24 94 9.9 7.40 104 10.91 4.3 154 234 8.6 0.13 0.03 0.03 1.81 - 95 10.4 7.47 87 7.30 3.0 141 204 7.7 0.11 0.11 0.03 2.17 96 11.3 7.20 63 5.07 5.3 97 137 3.5 0.09 0.03 0.02 1.95 97 9.9 7.38 83 6.68 8.4 132 192 7.3 0.11 0.03 0.04 1.98 98 8.8 7.01 64 4.44 5.0 104 143 3.8 0.08 0.04 0.02 1.84 99 10.3 7.02 61 5.18 3.9 97 130 2.6 0.10 0.04 0.01 1.81 00 10.7 7.24 74 6.81 12.8 115 154 3.9 0.08 0.02 . 0.03 1.91 01 11.7 7.21 83 2.95 3.1 121 171 3.4 0.07 0.02 0.03 1.85 02 11.7 7.15 100 7.82 7.8 142 199 4.0 0.11 0.02 0.03 2.36 03 11.6 7.41 83 9.23 8.5 123 165 3.4 0.12 0.02 0.03 2.10 04 11.2 7.21 88 7.36 8.5 130 174 3.9 0.11 0.01 0.04 2.07 05 9.9 7.24 81 4.74 3.7 127 152 3.9 0.09 0.02 0.03 1.74 06 9.5 7.08 52 9.39 12.2 90 87 2.2 0.08 0.02 0.05 1.45 07 10.4 7.49 83 4.53 5.4 121 157 3.2 0.08 0.02 0.02 2.06 08 9.4 7.84 70 5.07 5.4 113 155 3.2 0.12 0.04 0.02 2.08 09 9.3 7.58 75 4.31 2.6 115 158 2.8 0.07 0.02 0.02 1.95 10 8.6 7.39 59 6.17 9.2 95 124 2.3 0.08 0.02 0.01 1.75 11 9.5 7.51 38 11.66 20.2 68 75 1.1 0.11 0.01 0.01 1.53 12 11.1 7.38 71 3.01 2.8 108 138 2.3 0.07 0.02 0.01 1.70 13 11.6 7.21 57 12.36 11.5 90 115 1.7 0.08 0.03 0.01 1.72 14 9.6 7.20 57 4.00 8.3 94 114 2.0 0.08 0.04 0.01 2.10 15 11.7 7.22 79 4.08 12.7 119 160 2.6 0.09 0.04 0.02 1.79 16 10.5 7.01 60 16.58 33.7 100 126 2.4 0.18 0.02 1.65 Maximum 11.7 8.41 104 16.71 33.7 229 390 25.3 0.18 0.11 0.08 3.20 Minimum 5.5 7.01 38 2.95 2.0 68 75 1.1 0.06 0.01 0.01 1.45 Average 9.9 7.37 73 6.81 7.3 124 173 6.3 0.10 0.03 0.03 2.06 #Tests 36 36 36 36 36 36 36 35 36 27 35 36 Site: SW-03 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Mid ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 81 0.34 0.04 1.07 7 1 1 82 0.45 0.02 0.61 15 1 1 83 0.46 0.07 < 0.01 0.45 0.45 14 1 < 1 84 0.41 0.12 0.01 0.09 0.50 13 2 1 13.50 3.80 11.35 0.71 32.0 85 0.46 0.06 < 0.01 0.02 0.48 16 2 < 1 10.93 2.91 8.08 0.56 28.8 86 0.08 < 0.02 < 0.01 0.12 0.22 6 1 < 1 14.80 4.30 13.80 0.74 31.2 87 0.19 0.02 < 0.01 0.13 0.33 5 1 1 20.07 6.17 18.30 0.85 31.9 88 0.35 0.07 < 0.01 0.03 0.38 8 1 < 1 20.05 6.51 18.35 0.87 32.0 89 0.23 0.03 < 0.01 0.02 0.26 6 1.2 < 1 15.81 4.73 14.67 0.77 31.7 90 0.17 0.02 < 0.01 0.03 0.21 7 1.1 < 1 14.24 4.22 12.44 0.69 30.7 91 0.32 0.06 0.01 0.06 0.39 9 1.3 < 1 18.44 5.65 15.32 0.77 30.2 92 0.29 0.05 0.01 0.02 ,0.32 12 1.3 1 19.92 5.98 16.50 0.82 31.5 93 0.38 0.04 0.01 0.02 0.42 14 1.8 < 1 20.12 5.25 16.28 0.82 31.8 94 0.35 0.03 0.01 0.02 0.38 < 5 1.8 < 1 20.83 6.22 17.63 0.86 32.4 95 0.42 0.04 0.01 0.06 0.49 13 1.4 1 18.92 5.26 14.93 0.77 31.2 96 0.34 0.03 0.01 0.06 0.41 5 1.3 1 13.62 3.58 9.12 0.55 27.1 97 0.34 0.05 0.01 0.14 0.49 14 1.3 1 16.47 5.33 14.55 0.79 31.9 98 0.29 0.02 < 0.01 0.04 0.34 < 5 1.1 < 1 13.02 3.54 9.06 0.56 28.2 99 0.27 0.02 < 0.01 0.03 0.32 < 5 1.0 11.96 3.39 8.47 0.54 28.0 00 0.32 0.02 < 0.01 0.03 0.35 < 5 1.3 14.32 4.38 9.85 0.55 26.5 01 0.19 0.03 < 0.01 0.02 0.22 14 1.0 15.04 5.09 10.69 0.60 27.4 02 0.38 0.04 < 0.01 0.02 0.41 < 5 1.7 19.14 5.76 12.33 0.62 26.3 03 0.34 0.04 0.01 0.01 0.37 7 1.8 15.50 5.04 10.42 0.58 26.6 04 0.28 0.04 < 0.01 0.01 0.31 5 1.2 16.99 5.54 10.65 0.56 25.3 05 0.23 0.04 < 0.01 0.03 0.27 9 1.6 16.97 5.35 10.21 0.54 24.9 06 0.17 0.03 < 0.01 0.02 0.20 7 1.3 10.70 3.19 6.39 0.43 24.9 07 0.18 0.02 < 0.01 0.01 0.21 5 1.7 16.02 5.33 10.70 0.57 25.8 08 0.34 0.04 < 0.01 0.01 0.36 9 2.0 14.96 4.86 9.25 0.51 24.6 09 0.21 < 0.02 < 0.01 0.02 0.23 6 1.0 15.07 4.92 9.33 0.52 24.9 10 0.18 0.03 < 0.01 0.02 0.21 14 1.3 12.60 3.84 6.96 0.42 23.0 11 0.24 0.02 < 0.01 0.03 0.28 12 2.6 7.94 2.23 4.21 0.34 22.7 12 0.16 0.03 < 0.01 0.01 0.18 1.4 13.86 4.24 8.28 0.48 24.1 13 0.25 0.04 < 0.01 0.01 0.25 1.4 12.15 3.58 6.64 0.41 22.9 14 0.27 0.04 0.02 0.03 0.31 2.0 12.17 3.71 6.74 0.43 23.3 15 0.25 0.05 < 0.01 0.02 0.27 16.54 5.30 9.36 0.50 23.6 16 0.29 0.02 < 0.01 0.03 0.32 13.20 3.96 7.21 0.43 23.1 Maximum 0.46 0.12 0.02 0.45 1.07 16 2.6 1 20.83 6.51 18.35 0.87 32.4 Minimum 0.08 < 0.02 < 0.01 0.01 0.18 < 5 1.0 < 1 7.94 2.23 4.21 0.34 22.7 Average 0.29 0.04 0.01 0.05 0.36 9 1.4 1 15.33 4.64 11.15 0.61 27.6 #Tests 36 36 34 34 36 31 34 18 33 33 33 33 33 Site: SW-03 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Mid ALPINE COUNTY SURFACEWATER_QUALITY DATA From: 1981 To: 2016 Coliforms Fecal/ Fecal <----- Blue Green Algae - > Single Hard- Total E.coli Strep <-----Colonies-----> < Filaments------> <---Filamaments--> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 81 3,786 3,243 182 5 17 22 216 5 203 13 82 ' 1,920 690 3,091 1,766 15,701 61 415 18 470 6,490 83 280 160 50 4 13 6 33 3 178 10 8.65 8.77 67 84 930 170 190 5 3 2 2 166 14 22 8.65 3.40 53 85 12,215 12,215 135 0 0 0 0 16 17 0 7.75 1.67 40 86 95 40 55 0 0 0 0 0 0 2,493 9.20 10.44 55 87 127 53 73 0 0 0 0 0 0 185 8.72 13.80 67 88 1,490 1,317 2,208 0 0 0 0 115 4 1,916 9.25 14.38 110 89 1,283 633 185 0 0 0 0 69 4 946 8.72 7.28 90 1,298 302 3,223 2 0 0 0 0 0 0 7.74 6.32 27 91 1,810 1,207 160 29 221 0 1 0 0 0 7.23 7.79 52 92 2,365 2,051 230 0 0 6 47 0 0 0 7.05 6.63 63 93 1,059 704 35 41 305 2 7 0 0 0 7.51 6.76 69 94 2,299 2,109 135 0 0 0 0 0 0 0 8.14 6.56 93 95 828 645 90 0 0 0 0 0 0 0 8.30 6.87 45 96 1,793 211 90 0 0 0 0 0 0 0 9.56 3.71 42 97 1,374 523 90 0 0 0 0 0 0 0 9.27 5.38 72 98 525 325 90 51 377 3 54 0 0 0 9.25 3.66 44 99 1,688 734 680 0 0 0 0 0 0 0 8.79 3.74 00 982 491 95 0 0 0 0 0 0 0 8.61 3.47 01 1,498 611 90 0 0 0 0 4 63 0 8.78 2.00 02 1,799 712 93 0 0 0 0 0 0 0 8.09 2.19 03 3,181 1,606 167 0 0 0 0 0 0 0 7.22 2.19 04 1,703 141 217 0 0 0 0 0 0 0 7.84 2.09 05 2,310 1,826 23 0 0 0 0 0 0 0 7.36 1.94 06 1,452 486 59 0 0 0 0 0 0 0 8.37 1.50 07 2,001 1,918 1,222 0 0 4 20 0 0 0 7.57 2.15 08 2,147 1,542 260 0 0 0 0 0 0 0 7.53 2.48 09 4,282 991 57 0 0 0 0 0 0 0 7.07 2.62 10 3,238 1,436 4 0 0 3 11 0 0 0 7.50 2.18 11 1,913 309 51 0 0 0 0 0 0 0 9.16 1.25 12 1,450 1,338 26 0 0 0 0 0 0 0 8.04 2.12 13 3,061 1,311 27 0 0 0 0 0 0 0 8.43 1.91 14 3,152 2,580 122 0 0 0 0 0 0 0 8.66 3.08 15 1,552 431 8.75 2.62 16 10,015 2,332 9.75 3.41 Maximum 12,215 12,215 3,223 1,766 15,701 61 415 166 470 6,490 9.75 14.38 110 Minimum 95 40 4 0 0 0 0 0 0 0 7.05 1.25 27 Average 2,303 1,316 397 56 489 3 24 12 28 355 8.31 4.60 60 #Tests 36 36 34 34 34 34 34 34 34 34 34 34 15 Site: SW-03 Nitrate-Nitrogen Total Phosphorus 0.5 0.5 0.4 0.4 0.3 0.3 J J E13) - E - 0.2 0.2 0.1 : 0.1 0.0 . . . . .0 0. 0 0 0j 09 0 0�' 00 01 00 O, 00 00 0 0 ^, b 1 0^ 00 00 01 00 0^ 00 p'`' p,'1 09 O^ 00 00 0 09 ^^ 0 0 t Nitrate Linear(Nitrate) —0—Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 50 500 40 400 30 300 J J m 3 20 A E 200 10 We ��— 100 0 - - 00 0 0 0 00 01 45 01 Oo" 45 N's '�' ,0 0 1 0 0^ 00 00 01 00 ON 00 00 01 00 O1 00 00 O'1 0 ^, ^'� ,0 - --Chlorides Linear(Chlorides) tTDS Linear(TDS) Site: SW-04 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Lower ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 03/01/16 5.9 6.64 32.7 6.30 14.10 64 72 2.64 0.034 < 0.010 1.29 04/05/16 9.0 7.33 34.2 6.10 9.32 73 69.5 1.48 0.045 0.010 1.14 05/03/16 10.2 6.77 41.1 2.90 9.30 97 102 1.83 0.071 0.032 1.86 06/15/16 12.0 7.44 44.3 5.00 5.94 80 94 1.27 0.140 0.052 2.65 07/06/16 17.6 6.84 61.4 4.40 3.10 134 132 2.22 0.150 0.043 2.54 08/02/16 19.2 7.47 81.5 2.90 2.96 135 168 3.03 0.134 0.059 3.63 09/07/16 12.8 7.48 72.3 4.30 3.54 112 114 2.66 0.119 0.026 2.68 10/06/16 6.0 7.38 71.6 3.00 1.64 118 133 3.23 0.081 0.026 2.38 11/02/16 4.5 6.77 30.6 4.70 7.85 61 162 1.47 0.037 < 0.010 1.14 Maximum 19.2 7.48 81.5 6.30 14.10 135 168 3.23 0.150 0.059 3.63 Minimum 4.5 6.64 30.6 2.90 1.64 61 69.5 1.27 0.034 < 0.010 1.14 Average 10.8 7.12 52.2 4.40 6.42 97 116 2.20 0.090 0.030 2.15 #Tests 9 9 9 9 9 9 9 9 9 9 0 9 Site: SW-04 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Lower ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 03/01/16 0.228 < 0.020 < 0.010 0.010 0.238 7.90 2.06 4.45 0.360 24.50 04/05/16 0.181 < 0.020 < 0.010 0.083 0.264 6.00 1.69 3.01 0.280 21.90 05/03/16 0.541 < 0.020 < 0.010 0.669 1.210 10.20 2.92 5.95 0.420 24.50 06/15/16 0.575 0.024 < 0.010 0.113 0.688 10.60 2.84 4.64 0.330 19.50 07/06/16 0.568 0.046 0.011 0.109 0.688 15.10 3.81 6.38 0.380 19.70 08/02/16 0.478 0.020 < 0.010 0.032 0.510 17.50 5.26 7.88 0.420 19.70 09/07/16 0.168 < 0.020 < 0.010 0.046 0.214 15.20 4.90 8.85 0.500 23.80 10/06/16 0.228 < 0.020 < 0.010 0.017 0.245 14.50 4.63 9.00 0.530 25.10 11/02/16 0.169 < 0.020 < 0.010 0.011 0.180 7.29 1.70 3.42 0.300 21.80 Maximum 0.575 0.046 0.011 0.669 1.210 17.50 5.26 9.00 0.530 25.10 Minimum 0.168 < 0.020 < 0.010 0.010 0.180 6.00 1.69 3.01 0.280 19.50 Average 0.348 0.023 < 0.010 0.121 0.471 11.59 3.31 5.95 0.391 22.28 #Tests 9 9 9 9 9 0 0 0 9 9 9 9 9 Site: SW-04 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Lower ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # um #cells mg/L mg/L mg/L 03/01/16 148 2 12.05 3.09 04/05/16 613 14 9.57 2.48 05/03/16 2,143 12 10.68 5.08 06/15/16 20,140 2,590 8.64 2.46 07/06/16 1,120 411 8.58 3.06 08/02/16 2,720 39 10.74 1.22 09/07/16 5,450 79 6.77 1.90 10/06/16 2,430 84 10.20 2.99 11/02/16 2,419 8 6.76 2.14 Maximum 20,140 2,590 0 0 0 0 0 0 0 12.05 5.08 Minimum 148 2 0 0 0 0 0 0 0 6.76 1.22 Average 4,132 360 9.33 2.71 #Tests 9 9 0 0 0 0 0 0 0 0 9 9 0 Site: SW-04 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Lower ALPINE COUNTY SURFACEWATER QUALITY DATA From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 81 12.4 8.02 68 2.68 5 174 260 5.2 0.08 0.05 3.69 82 10.1 7.51 59 4.46 11 133 194 0.09 0.06 2.37 83 7.6 8.04 51 5.60 9 111 173 17.4 0.10 0.06 2.20 84 10.7 7.58 64 3.86 13 116 187 15.8 0.08 0.05 2.33 85 10.8 7.58 67 4.44 9 127 219 19.9 0.08 0.33 2.60 86 9.1 7.80 47 4.86 6 109 140 10.6 0.07 0.02 1.73 87 9.0 7.09 61 2.64 4 127 195 17.0 0.05 0.03 2.46 88 9.1 7.43 51 4.53 10 93 122 3.8 0.07 0.02 1.72 89 10.0 7.42 60 15.81 44.8 103 134 4.4 0.14 0.02 2.17 90 8.6 7.57 58 4.10 11.3 89 122 2.6 0.09 0.04 0.03 1.73 91 8.9 7.44 62 5.48 15.3 99 133 3.3 0.11 0.03 0.02 2.20 92 9.2 7.82 63 2.10 3.8 99 135 2.9 0.07 0.03 0.03 1.86 93 8.0 7.45 64 2.97 6.1 99 139 3.2 0.08 0.05 0.02 2.15 94 8.1 7.54 61 2.61 4.5 93 131 2.5 0.07 0.03 0.01 1.64 95 10.4 7.51 61 3.53 7.0 102 130 2.8 0.09 0.05 0.02 1.94 96 10.9 7.43 60 3.59 10.1 92 125 2.1 0.08 0.03 0.02 1.93 97 9.0 7.40 53 3.61 7.0 85 110 2.0 0.08 0.03 0.02 1.56 98 8.4 7.05 50 7.17 18.5 86 107 2.1 0.10 0.03 0.02 1.73 99 9.8 7.22 52 4.49 13.1 83 108 1.7 0.08 0.03 0.01 1.78 00 9.6 7.32 52 5.76 9.4 87 108 1.8 0.07 0.02 0.02 1.58 01 11.2 7.27 64 4.73 10.5 98 131 2.4 0.07 0.03 0.02 2.09 02 10.7 7.38 68 4.70 6.6 106 139 2.5 0.07 0.02 0.02 2.25 03 10.5 7.76 57 5.68 10.2 90 116 2.1 0.06 0.02 0.02 1.43 04 10.7 7.19 63 6.37 6.4 99 128 2.4 0.09 0.01 0.03 2.36 05 9.3 7.16 51 14.39 39.1 89 97 2.5 0.12 0.02 0.02 1.88 06 9.8 7.19 45 8.23 6.6 77 74 1.6 0.06 0.02 0.02 1.43 07 11.4 7.58 53 12.27 13.9 81 111 2.1 0.10 0.02 0.01 2.11 08 10.0 7.71 53 6.30 5.4 88 115 3.0 0.08 0.02 0.01 2.16 09 9.8 7.43 47 12.69 17.3 81 93 2.1 0.09 0.02 0.01 1.81 10 9.8 7.42 49 7.26 10.8 89 106 2.9 0.10 0.03 0.01 2.46 11 10.3 7.68 44 6.11 7.9 76 91 1.7 0.06 0.02 0.01 1.58 12 11.6 7.57 63 6.10 3.8 97 133 2.3 0.08 0.03 0.02 1.92 13 11.7 7.34 55 15.26 12.2 88 111 2.0 0.10 0.02 0.01 2.08 14 10.3 7.58 48 9.49 14.9 87 103 2.1 0.08 0.03 0.01 2.08 15 13.9 7.87 69 3.34 3.9 106 143 2.9 0.05 0.02 0.02 1.97 16 10.8 7.12 52 4.40 6.4 97 116 2.2 0.09 0.03 2.15 Maximum 13.9 8.04 69 15.81 44.8 174 260 19.9 0.14 0.05 0.33 3.69 Minimum 7.6 7.05 44 2.10 3.8 76 74 1.6 0.05 0.01 0.01 1.43 Average 10.0 7.49 57 6.16 10.9 99 133 4.5 0.08 0.03 0.03 2.03 #Tests 36 36 36 36 36 36 36 35 36 27 35 36 Site: SW-04 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Lower ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 81 0.46 0.04 0.56 13 1 1 82 0.39 0.02 0.58 13 1 < 1 83 0.46 0.05 < 0.01 0.37 0.57 12 1 < 1 84 0.37 0.09 0.01 0.09 0.46 9 1 < 1 16.49 4.54 12.17 0.66 28.3 85 0.34 0.05 0.01 0.20 0.57 10 1 < 1 16.41 4.43 14.70 0.74 28.7 86 0.44 0.10 0.01 0.28 0.73 11 2 < 1 10.28 3.40 8.11 0.57 29.1 87 0.28 0.04 < 0.01 0.06 0.35 8 1 < 1 14.34 4.58 14.98 0.80 28.7 88 0.29 0.04 < 0.01 0.01 0.32 8 1 < 1 12.41 3.87 6.78 0.43 23.2 89 0.51 0.07 < 0.01 0.04 0.56 15 1.3 < 1 13.40 4.03 7.07 0.42 22.2 90 0.21 0.02 < 0.01 0.02 0.24 7 1.1 < 1 12.55 3.78 6.51 0.40 22.3 91 0.40 0.05 0.01 0.05 0.45 24 1.3 < 1 13.81 4.02 8.16 0.48 23.0 92 0.29 0.03 0.01 0.02 0.32 26 1.2 1 13.67 4.03 7.23 0.44 22.6 93 0.43 0.04 0.01 0.06 0.49 14 1.4 < 1 14.23 4.10 7.38 0.44 22.5 94 0.30 0.02 0.01 0.04 0.35 9 1.0 < 1 13.18 3.93 6.90 0.42 22.7 95 0.57 0.02 0.01 0.05 0.63 12 1.3 1 13.54 3.64 6.71 0.41 22.0 96 0.40 0.02 0.01 0.05 0.46 6 1.3 1 13.26 3.70 6.68 0.41 22.4 97 0.38 0.04 0.01 0.13 0.53 10 1.4 1 12.09 3.53 6.13 0.39 22.2 98 0.43 0.02 < 0.01 0.03 0.47 6 1.3 < 1 10.62 3.10 5.83 0.40 23.5 99 0.31 < 0.02 < 0.01 0.02 0.34 6 1.2 10.44 3.15 6.30 0.44 24.7 00 0.32 < 0.02 < 0.01 0.02 0.36 < 5 1.1 10.45 3.25 5.69 0.39 23.0 01 0.32 < 0.03 < 0.01 0.01 0.34 23 1.1 13.30 4.06 6.88 0.43 22.5 02 0.41 0.04 < 0.01 < 0.01 0.43 < 5 1.2 14.26 4.11 7.02 0.42 22.2 03 0.33 0.03 < 0.01 < 0.01 0.36 11 1.1 11.57 3.64 6.40 0.42 23.3 04 0.36 0.05 < 0.01 0.01 0.38 13 0.9 12.75 3.94 5.94 0.37 20.4 05 0.46 0.03 < 0.01 0.04 0.51 19 1.7 11.15 3.43 5.74 0.38 21.9 06 0.21 0.03 < 0.01 0.04 0.25 9 1.2 9.52 2.78 4.96 0.37 22.9 07 0.43 0.02 < 0.01 0.02 0.46 9 2.7 11.35 3.48 6.00 0.40 22.4 08 0.35 < 0.02 < 0.01 0.14 0.50 19 1.4 11.22 3.37 6.26 0.42 23.4 09 0.38 0.02 < 0.01 0.04 0.43 11 1.1 9.83 3.06 5.63 0.40 23.7 10 0.32 0.02 < 0.01 0.03 0.36 7 1.6 10.39 3.10 6.05 0.42 23.6 11 0.19 0.02 < 0.01 0.04 0.24 8 1.5 9.10 2.75 5.15 0.38 23.4 12 0.23 0.03 < 0.01 0.01 0.25 1.4 12.50 3.79 7.12 0.44 23.6 13 0.33 0.03 < 0.01 0.01 0.28 1.7 11.76 3.50 6.19 0.40 22.4 14 0.33 0.04 < 0.01 0.24 0.57 1.6 10.75 3.21 5.93 0.41 23.2 15 0.17 0.02 < 0.01 0.01 0.17 14.42 4.84 8.35 0.48 23.8 16 0.35 0.02 < 0.01 0.12 0.47 11.59 3.31 5.95 0.39 22.3 Maximum 0.57 0.10 0.01 0.37 0.73 26 2.7 1 16.49 4.84 14.98 0.80 29.1 Minimum 0.17 < 0.02 < 0.01 < 0.01 0.17 < 5 0.9 < 1 9.10 2.75 4.96 0.37 20.4 Average 0.35 0.03 0.01 0.07 0.43 12 1.3 1 12.32 3.68 7.18 0.45 -23.5 #Tests 36 36 34 34 36 31 34 18 33 33 33 33 33 Site: SW-04 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Indian Creek,Lower ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Coliforms Fecal/ Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments--> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # um #cells mg/L mg/L mg/L 81 2,977 1,408 898 24 132 94 1,007 1 101 7 82 1,946 321 421 18 56 40 400 12 292 318 83 1,472 302 125 5 12 14 141 7 312 0 9.00 6.52 53 84 1,950 324 392 188 5 56 2 130 10 244 8.78 3.74 64 85 2,573 480 108 0 0 0 0 54 5 0 8.21 6.28 58 86 313 113 566 0 0 0 0 0 0 3,255 8.82 9.29 43 87 3,249 231 161 0 0 0 0 323 3 1,685 8.53 14.11 60 88 2,358 177 170 0 0 46 277 162 6 0 9.14 5.55 54 89 3,936 1,244 850 0 0 0 0 139 7 1,593 7.62 5.22 90 570 110 175 2 0 0 1 0 1 0 7.75 4.83 32 91 2,095 1,462 1,245 0 0 0 3 0 0 0 8.25 5.46 41 92 937 55 485 3 188 9 144 0 0 0 9.03 4.70 55 93 1,453 387 95 0 0 0 0 0 0 0 8.56 4.97 40 94 293 76 260 0 0 0 0 0 0 0 8.17 4.97 36 95 2,183 1,260 110 ` 0 0 0 0 0 0 0 8.87 5.35 38 96 3,268 637 235 0 0 0 0 0 0 0 8.15 2.98 38 97 2,298 226 120 0 0 0 0 0 0 0 9.40 3.50 41 98 3,105 2,549 320 0 0 0 0 0 0 0 8.90 3.30 37 99 920 188 90 0 0 0 0 0 0 0 8.48 3.37 00 1,119 194 55 0 0 0 0 0 0 0 8.36 2.70 01 630 235 320 0 0 0 0 0 0 0 8.78 1.51 02 1,503 305 330 0 0 0 0 0 0 0 8.46 1.45 03 489 52 512 0 0 0 0 0 0 0 6.82 1.47 04 2,245 171 92 0 0 0 0 0 0 0 7.37 1.40 05 1,534 407 - 152 0 0 0 0 0 0 0 7.77 1.70 06 2,010 305 58 0 0 0 0 0 0 0 7.53 1.15 07 913 97 1,222 0 0 0 0 0 0 0 6.38 1.69 08 1,080 893 5,965 0 0 4 48 0 0 0 7.70 2.10 09 3,324 571 217 0 0 7 62 0 0 0 8.30 2.01 10 3,325 2,022 13 0 0 0 0 0 0 0 7.81 2.07 11 1,694 80 22 0 0 0 0 0 0 0 8.10 1.42 12 • 1,518 917 80 0 0 6 77 0 0 0 6.71 1.78 13 3,119 76 27 0 0 0 0 0 0 0 6.68 1.73 14 4,756 1,614 242 0 0 0 0 0 0 0 9.37 3.01 15 1,821 160 9.53 2.15 16 4,132 360 9.33 2.71 Maximum 4,756 2,549 5,965 188 188 94 1,007 323 312 3,255 9.53 14.11 64 Minimum 293 52 13 0 0 0 0 0 0 0 6.38 1.15 32 Average 2,031 556 474 7 12 8 64 24 22 209 8.26 3.71 46 #Tests 36 36 34 34 34 34 34 34 34 34 34 34 15 Site: SW-04 Nitrate-Nitrogen Total Phosphorus 0.5 0.5 0.4 0.4 - 0.3 0.3 _ 0 0.2 .2 0.1 _ 0.1 -_ A 0.0 0.0 m rn rn rn o 0 m m m rn rn o 0 0 m m m m m m rn rn rn m o 0 0 0 0 .- —�Nitrate Linear(Nitrate) —*--Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 50 500 40 400 30 300 - J E 20 E 200 10 100 - -- –ter - O -m is m m m rn m rn m m o 0 0 0 0 -10 m m m rn E s, o 0 0 0 +Chlorides Linear(Chlorides) TDS Linear(TDS) Site: SW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Paynesville ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 01/05/16 1.4 7.41 44.0 0.94 0.86 75 102.0 2.430 0.012 < 0.010 1.70 02/02/16 0.0 7.13 31.1 5.60 13.90 64 79.4 2.900 0.051 < 0.010 1.58 03/01/16 5.6 7.12 30.7 2.90 6.60 62 72.4 2.650 0.025 < 0.010 1.34 04/05/16 4.6 7.02 23.8 6.30 15.60 55 53.0 1.180 0.049 < 0.010 1.29 05/03/16 7.7 5.58 26.2 2.20 2.87 54 56.0 1.040 0.020 < 0.010 0.89 06/15/16 10.7 7.65 26.4 3.10 6.78 40 54.0 0.727 0.032 < 0.010 1.01 07/06/16 15.1 6.89 30.0 2.50 4.58 66 63.8 0.869 0.034 < 0.010 1.27 08/02/16 17.0 7.29 37.0 1.70 3.64 63 78.9 1.190 0.033 0.011 1.71 09/07/16 13.7 8.09 43.4 1.30 1.55 71 91.5 1.550 0.034 < 0.010 2.05 10/06/16 5.4 7.19 39.4 0.78 1.04 70 84.0 1.510 0.013 < 0.010 1.78 11/02/16 3.4 6.54 28.5 1.20 1.66 62 61.0 1.400 0.018 < 0.010 1.00 12/06/16 1.0 7.01 38.4 0.56 0.45 68 84.3 1.700 < 0.010 < 0.010 1.43 Maximum 17.0 8.09 44.0 6.30 15.60 75 102.0 2.900 0.051 0.011 2.05 Minimum 0.0 5.58 23.8 0.56 0.45 40 53.0 0.727 < 0.010 < 0.010 0.89 Average 7.1 7.08 33.2 2.42 4.96 63 73.4 1.596 0.028 < 0.010 1.42 #Tests 12 12 12 12 12 12 12 12 12 12 0 12 Site: SW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Paynesville ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 01/05/16 0.106 < 0.020 < 0.010 < 0.010 0.106 10.10 2.67 6.20 0.450 26.00 02/02/16 0.332 < 0.020 < 0.010 0.187 0.519 8.00 2.16 4.22 0.340 22.90 03/01/16 0.245 , < 0.020 < 0.010 < 0.010 0.245 7.66 1.93 4.31 0.360 24.60 04/05/16 0.217 < 0.020 < 0.010 0.056 0.273 7.88 2.33 4.26 0.340 23.10 05/03/16 0.133 < 0.020 < 0.010 < 0.010 0.133 6.13 1.55 3.06 0.290 22.60 06/15/16 0.192 < 0.020 < 0.010 < 0.010 0.192 5.90 1.58 2.76 0.260 21.00 07/06/16 0.135 < 0.020 < 0.010 < 0.010 0.135 6.96 1.67 3.22 0.280 21.30 08/02/16 0.129 < 0.020 < 0.010 < 0.010 0.129 7.76 2.06 4.60 0.380 25.00 09/07/16 0.120 < 0.020 < 0.010 < 0.010 0.120 9.35 2.46 5.95 0.450 26.40 10/06/16 0.075 < 0.020 < 0.010 < 0.010 0.075 8.27 2.24 5.07 0.400 25.50 11/02/16 0.135 < 0.020 < 0.010 < 0.010 0.135 6.80 1.62 3.18 0.280 21.70 12/06/16 < 0.050 < 0.020 < 0.010 < 0.010 < 0.050 8.93 2.04 5.02 0.390 25.10 Maximum 0.332 < 0.020 < 0.010 0.187 0.519 10.10 2.67 6.20 0.450 26.40 Minimum < 0.050 < 0.020 < 0.010 < 0.010 < 0.050 5.90 1.55 2.76 0.260 21.00 Average 0.156 < 0.020 < 0.010 0.029 0.176 7.81 2.03 4.32 0.352 23.77 #Tests 12 12 12 12 12 0 0 0 12 12 12 12 12 Site: SW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Paynesville ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Coliforms Fecal <---- Blue Green Algae > Single Hard- Total E. coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 01/05/16 78 3 12.30 4.37 02/02/16 613 13 13.00 3.49 03/01/16 178 5 11.91 2.91 04/05/16 328 3 10.50 1.61 05/03/16 248 56 11.06 1.49 06/15/16 1,120 71 9.66 1.31 07/06/16 1,414 46 8.89 1.50 08/02/16 6,830 365 11.45 1.83 09/07/16 2,419 48 9.15 2.51 10/06/16 281 25 10.80 2.32 11/02/16 326 45 11.74 2.18 12/06/16 167 24 17.10 3.15 Maximum 6,830 365 0 0 0 0 0 0 0 17.10 4.37 Minimum 78 3 0 0 0 0 0 0 0 8.89 1.31 Average 1,167 59 11.46 2.39 #Tests 12 12 0 0 0 0 0 0 0 0 12 12 0 Site: SW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Paynseville ALPINE COUNTY SURFACEWATER QUALITY DATA From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 81 9.9 7.93 36 1.15 4 64 78 1.8 0.03 0.01 1.52 82 6.4 7.61 28 2.57 23 49 57 0.04 0.02 1.11 83 6.0 7.73 30 2.45 8 43 60 0.9 0.03 0.03 1.17 84 8.4 7.78 33 2.08 13 49 70 1.2 0.04 0.02 1.46 85 7.6 7.86 37 5.11 9 50 78 1.7 0.05 0.24 2.20 86 6.5 7.91 32 1.92 6 53 67 1.4 0.03 0.01 1.35 87 9.7 7.54 42 1.09 4 68 91 2.1 0.04 0.01 1.88 - 88 9.2 7.69 42 1.10 4 80 100 3.3 0.02 0.02 1.81 89 8.7 7.75 36 1.65 7.3 60 88 2.2 0.03 0.02 1.92 90 9.4 7.77 40 1.61 4.8 73 96 -2.0 0.04 0.02 0.02 1.73 91 9.9 7.73 40 2.11 6.3 71 86 2.3 0.04 0.01 0.02 1.70 92 9.3 8.01 40 1.37 4.6 69 90 2.0 0.03 0.01 0.02 1.65 93 7.2 7.80 33 2.01 7.0 58 77 1.7 0.03 0.01 0.02 1.40 94 8.8 7.93 39 1.10 2.4 66 88 1.5 0.03 0.01 0.01 1.68 95 7.1 7.69 31 1.70 10.7 54 68 1.4 0.03 0.01 0.01 1.28 96 9.1 7.57 32 1.18 5.8 59 72 1.4 0.03 0.01 0.02 1.37 97 8.1 7.49 32 6.29 19.3 59 68 1.1 0.05 0.01 0.02 1.46 98 6.8 7.27 33 1.31 5.0 56 72 1.4 0.02 0.01 0.01 1.43 99 8.1 7.37 33 1.12 3.7 59 74 1.5 0.03 0.01 0.01 1.61 00 7.3 7.33 35 1.34 6.3 61 77 1.4 0.03 0.01 0.02 1.53 01 11.4 7.49 38 1.63 3.6 62 84 1.6 0.02 0.01 0.01 1.72 02 8.6 7.46 37 1.62 2.8 64 80 1.8 0.02 < 0.01 0.01 1.57 03 9.0 7.68 36 - 4.27 10.5 61 74 1.8 0.03 0.01 0.01 1.50 04 8.7 7.35 36 3.97 10.4 62 76 1.8 0.03 0.01 0.02 1.56 05 7.9 7.26 34 2.98 5.6 59 62 2.0 0.02 0.01 0.02 1.41 06 8.0 7.25 29 3.58 6.7 53 49 1.4 0.03 0.01 0.02 1.24 07 9.9 7.70 36 1.79 3.4 63 76 1.6 0.02 < 0.01 0.01 1.60 08 7.7 7.71 36 1.94 2.8 61 72 1.8 0.02 < 0.01 0.01 1.61 09 7.5 7.55 35 2.97 5.2 58 74 1.5 0.02 < 0.01 0.01 1.49 10 5.9 7.51 33 3.55 5.6 59 73 1.5 0.02 0.01 < 0.01 1.52 11 5.8 7.62 31 3.51 6.5 57 66 1.1 0.03 0.01 0.01 1.37 12 8.2 7.46 37 1.95 3.1 61 78 1.3 0.02 0.01 0.01 1.58 13 8.7 7.41 35 1.69 2.9 60 72 1.2 0.02 0.01 0.01 1.40 14 7.8 7.54 39 1.29 2.0 65 83 1.5 0.02 0.01 0.01 1.62 15 8.8 7.35 38 1.72 2.6 68 85 1.4 0.02 0.01 0.01 1.59 16 7.1 7.08 33 2.42 5.0 63 73 1.6 0.03 < 0.01 1.42 Maximum 11.4 8.01 42 6.29 23.0 80 100 3.3 0.05 0.02 0.24 2.20 Minimum 5.8 7.08 28 1.09 2.0 43 49 0.9 0.02 < 0.01 0.01 1.11 Average 8.2 7.59 35 2.25 6.5 60 76 1.6 0.03 0.01 0.02 1.54 #Tests 36 36 36 36 36 36 36 35 36 27 35 36 Site: SW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Paynseville ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 81 0.23 0.03 0.32 6 1 < 1 • 82 0.19 0.01 0.29 9 1 1 83 0.19 0.05 < 0.01 0.04 0.23 7 1 < 1 84 0.27 0.08 0.01 0.03 0.30 5 1 1 6.85 1.93 3.42 0.29 21.1 85 0.24 0.04 < 0.01 0.04 0.28 7 1 < 1 7.81 2.15 3.85 0.31 21.0 86 0.19 0.04 < 0.01 0.05 0.24 5 1 1 6.70 1.90 3.11 0.26 19.9 87 0.21 0.03 < 0.01 0.06 0.28 5 1 < 1 8.73 2.53 4.93 0.37 23.2 88 0.21 0.03 < 0.01 0.09 0.32 5 1 < 1 9.49 2.76 5.88 0.41 24.7 89 0.20 0.03 < 0.01 0.06 0.27 6 1.1 < 1 7.90 2.22 4.20 0.33 21.6 90 0.18 0.02 < 0.01 0.07 0.26 6 1.0 2 8.99 2.45 4.92 0.36 22.9 91 0.20 0.03 0.01 0.11 0.31 10 1.0 < 1 8.77 2.42 4.73 0.35 22.7 92 0.20 0.03 0.01 0.04 0.25 8 1.0 1 8.89 2.33 4.74 0.36 23.0 93 0.21 0.03 0.01 0.06 0.28 8 1.2 < 1 7.81 2.05 3.83 0.30 21.2 94 0.19 0.02 0.01 0.04 0.25 < 5 1.0 < 1 8.69 2.29 4.74 0.36 23.4 95 0.26 0.02 0.01 0.04 0.31 7 1.0 1 7.24 1.85 3.64 0.30 21.9 96 0.24 0.02 0.01 0.05 0.31 2 1.2 1 7.40 1.93 3.82 0.31 22.3 97 0.16 0.03 0.01 0.10 0.27 5 1.0 1 7.34 2.09 3.86 0.32 22.3 98 0.18 0.02 < 0.01 0.05 0.24 < 5 0.9 < 1 6.85 1.89 3.79 0.32 23.2 99 0.23 < 0.02 < 0.01 0.04 0.28 < 5 1.0 7.03 1.97 4.05 0.34 23.8 00 0.16 0.02 0.01 0.03 0.19 < 5 1.0 6.79 2.05 4.29 0.37 25.0 01 0.18 0.02 < 0.01 0.02 0.21 15 , 1.0 8.07 2.24 4.96 0.39 25.0 02 0.22 0.03 < 0.01 0.02 0.25 < 5 0.9 7.80 2.14 4.86 0.39 25.4 03 0.21 0.03 0.01 0.03 0.25 6 0.9 7.65 2.19 4.59 0.37 24.7 04 0.19 0.03 < 0.01 0.03 0.23 8 0.7 7.51 2.21 4.53 0.37 24.3 05 0.20 0.02 < 0.01 0.03 0.24 12 1.3 7.45 2.07 4.26 0.35 23.8 06 0.13 0.02 < 0.01 0.02 0.16 8 0.9 6.51 1.80 3.39 0.30 21.6 07 0.14 0.02 < 0.01 0.01 0.16 8 1.1 7.90 2.20 4.87 0.39 25.1 08 0.18 < 0.02 < 0.01 0.01 0.20 8 1.0 7.98 2.16 4.79 0.38 24.9 09 0.17 0.02 < 0.01 0.01 0.20 11 0.8 7.70 2.01 4.45 0.36 24.5 10 0.10 0.02 < 0.01 0.01 0.12 34 1.1 7.44 2.06 4.14 0.34 23.3 11 0.10 0.02 < 0.01 0.02 0.13 8 1.4 6.71 1.82 3.58 0.31 22.7 12 0.13 0.23 < 0.01 0.01 0.15 1.4 7.81 2.06 4.34 0.35 23.6 13 0.14 0.03 < 0.01 0.02 0.15 1.0 7.93 2.00 4.29 0.35 23.5 14 0.13 0.03 < 0.01 0.01 0.14 1.0 8.41 2.20 4.95 0.39 25.0 15 0.14 < 0.02 < 0.01 0.01 0.14 8.85 2.27 4.93 0.38 24.1 16 0.16 < 0.02 < 0.01 0.03 0.18 7.81 2.03 4.32 0.35 23.8 Maximum 0.27 0.23 0.01 0.11 0.32 34 1.4 2 9.49 2.76 5.88 0.41 25.4 Minimum 0.10 0.01 < 0.01 0.01 0.12 2 0.7 < 1 6.51 1.80 3.11 0.26 19.9 Average 0.19 0.03 0.01 0.04 0.23 8 1.0 1 7.78 2.13 4.33 0.35 23.3 #Tests 36 36 34 34 36 31 34 18 33 33 33 33 33 Site: SW-05 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Paynseville ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Coliforms Fecal/ Fecal < Blue Green Algae - > Single Hard- Total E.coli Strep < Colonies > <----Filaments-----> <---Filamaments---> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # um #cells mg/L mg/L mg/L 81 1,388 700 492 173 2,303 36 230 2 81 11 82 506 456 226 26 60 62 738 10 285 16 83 1,198 1,048 360 6 12 18 158 22 396 4 9.37 4.05 26 84 2,506 822 286 90 56 16 36 368 41 180 9.22 1.44 23 85 2,904 1,227 299 0 0 52 280 58 1 139 9.13 2.25 29 86 2,951 1,179 378 0 0 23 346 46 1 23 9.63 9.08 27 87 2,643 607 348 0 0 0 0 208 4 5,194' 9.48 5.71 32 88 815 238 93 0 0 0 0 705 25 1,158 11.15 5.26 89 945 511 228 0 0 0 0 600 24 1,685 9.81 4.47 90 1,343 232 450 0 46 0 0 0 .0 0 8.83 4.96 31 91 398 83 230 0 0 0 0 0 0 0 9.05 5.22 30 92 886 181 65 0 0 0 0 0 0 0 9.80 5.06 30 93 886 491 680 0 0 0 0 0 0 0 10.50 4.33 26 94 1,390 672 90 0 0 3 70 0 0 0 9.93 5.27 33 95 218 41 90 0 0 0 0 0 0 0 9.82 4.64 24 96 918 248 55 0 0 0 0 0 0 0 8.93 2.57 26 97 243 41 65 0 0 0 0 0 0 0 9.88 3.26 26 98 585 80 35 0 0 18 132 0 0 0 9.97 2.47 21 99 718 83 35 0 0 0 0 0 0 0 9.41 2.50 00 263 90 30 0 0 0 0 0 0 0 10.02 2.70 01 210 58 40 0 0 0 0 0 0 0 9.29 2.60 02 250 78 82 0 0 0 0 0 0 0 9.63 2.70 03 334 54 33 0 0 0 0 0 0 0 8.65 2.39 04 316 51 . 7 0 0 0 0 0 0 0 8.95 2.73 05 72 29 51 4 266 35 216 0 0 0 10.13 2.56 06 259 77 23 0 0 0 0 0 0 0 9.86 1.60 07 202 63 33 0 0 0 0 0 0 0 9.33 2.42 08 512 98 162 0 0 0 0 4 821 0 9.84 2.86 09 333 106 48 0 0 0 0 0 0 0 9.90 2.54 10 983 949 68 0 0 0 0 0 0 0 9.37 2.49 11 389 143 9 0 0 3 54 0 0 0 10.50 1.64 12 321 74 4 0 0 0 0 0 0 0 9.14 2.28 13 740 62 7 0 0 0 0 0 0 0 9.71 2.30 _ 14 1,545 108 6 0 0 0 0 0 0 0 9.62 2.63 15 1,087 104 10.46 2.75 16 1,167 59 11.46 2.39 • Maximum 2,951 1,227 680 173 2,303 62 738 705 821 5,194 11.46 9.08 33 Minimum 72 29 4 0 0 0 0 0 0 0 8.65 1.44 21 Average 901 310 150 9 81 8 66 59 49 247 9.70 3.36 27 #Tests 36 36 34 34 34 34 34 34 34 34 34 34 '14 Site: SW-05 Nitrate-Nitrogen Total Phosphorus 0.5 0.5 0.4 0.4 0.3 0.3 _ J J - a) - E E - 0.2 - 0.2 0.1 0.1 0.0 0.0 0n, 00 01 09 9^ 0? 0' 01 09 O, cc, 00 01 Oma' N\ 0 0 0" 0l' Oh 0 0' 9 0 9 9� 0, O's 0 Oh 0 09 1\ 0 0 t Nitrate Linear(Nitrate) t Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 10 -_ 250 9 - 8 = 200 7 6 _ 150 rn 5 rn - E 4 _ E 100 2 - 50 1 0 O 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 0\ 00 0° O1 05' 0^ 0 00 01 0 01 O°' 0 01 0 s, 0 0 t Chlorides Linear(Chlorides) —o—TDS Linear(TDS) Site: SW-06 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Stateline ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 01/05/16 0.4 7.30 46.7 0.68 0.20 77 110.0 3.20 0.010 < 0.010 1.64 02/03/16 0.9 7.46 31.7 4.50 9.58 66 85.8 2.98 0.042 < 0.010 1.61 03/01/16 6.3 7.05 30.9 3.00 6.64 70 73.7 2.77 0.033 < 0.010 1.32 04/05/16 4.9 7.77 24.2 6.50 16.30 60 53.4 1.23 0.052 < 0.010 1.29 05/03/16 9.4 5.46 27.6 2.60 2.42 56 57.0 1.17 0.020 0.014 0.92 06/15/16 12.0 7.70 28.0 3.00 5.66 53 57.0 0.98 0.028 < 0.010 1.10 07/06/16 16.4 7.12 32.0 2.60 5.94 65 65.9 0.98 0.036 < 0.010 1.35 08/02/16 19.0 7.86 37.8 1.90' 8.58 60 80.1 1.35 0.042 0.010 1.76 09/07/16 15.7 8.53 45.6 1.00 1.09 76 88.5 2.60 0.033 < 0.010 2.28 10/06/16 4.9 7.30 40.8 0.80 1.31 76 88.0 1.65 0.018 < 0.010 1.88 11/02/16 3.2 5.68 28.1 1.20 2.17 61 62.0 1.46 0.013 < 0.010 1.07 12/06/16 0.7 7.23 39.8 0.63 2.41 70 88.8 2.07 0.012 < 0.010 1.48 Maximum 19.0 8.53 46.7 6.50 16.30 77 110.0 3.20 0.052 0.014 2.28 Minimum 0.4 5.46 24.2 0.63 0.20 53 53.4 0.98 < 0.010 < 0.010 0.92 Average 7.8 7.21 34.4 2.37 5.19 66 75.9 1.87 0.028 < 0.010 1.47 #Tests 12 12 12 12 12 12 12 12 12 12 0 12 Site: SW-06 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Stateline ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 01/05/16 0.086 < 0.020 < 0.010 0.059 0.145 10.80 2.94 6.50 0.450 25.60 02/03/16 0.299 < 0.020 < 0.010 0.136 0.435 8.43 2.21 4.86 0.380 24.70 03/01/16 0.248 < 0.020 < 0.010 < 0.010 0.248 7.87 1.98 4.41 0.360 24.50 04/05/16 0.260 < 0.020 < 0.010 0.048 0.308 5.95 1.70 3.02 0.280 21.80 05/03/16 0.138 < 0.020 < 0.010 < 0.010 0.138 6.16 1.58 3.15 0.290 22.90 06/15/16 0.174 < 0.020 < 0.010 0.019 0.193 6.18 1.68 2.96 0.270 21.30 07/06/16 0.143 < 0.020 < 0.010 0.017 0.160 7.36 1.79 3.46 0.300 21.50 08/02/16 0.151 < 0.020 < 0.010 0.019 0.170 7.86 2.14 4.79 0.390 25.30 09/07/16 0.263 < 0.020 < 0.010 0.092 0.355 10.00 2.77 6.33 0.460 26.00 10/06/16 0.071 < 0.020 < 0.010 0.021 0.092 8.77 2.41 5.38 0.410 25.50 11/02/16 0.168 < 0.020 < 0.010 0.011 0.179 6.86 1.67 3.32 0.290 22.20 12/06/16 0.052 < 0.020 < 0.010 0.042 0.094 9.51 2.12 5.07 0.390 24.30 Maximum 0.299 < 0.020 < 0.010 0.136 0.435 10.80 2.94 6.50 0.460 26.00 Minimum 0.052 < 0.020 < 0.010 < 0.010 0.092 5.95 1.58 2.96 0.270 21.30 Average 0.171 < 0.020 < 0.010 0.040 0.210 7.98 2.08 4.44 0.356 23.80 #Tests 12 12 12 12 12 0 0 0 12 12 12 12 12 Site: SW-06 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Stateline ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E. coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # um #cells mg/L mg/L mg/L 01/05/16 99 3 12.40 5.06 02/03/16 326 3 10.30 3.88 03/01/16 219 2 12.22 3.01 04/05/16 548 3 12.60 1.64 05/03/16 214 3 10.73 1.57 06/15/16 1,414 66 9.13 1.48 07/06/16 1,414 73 8.50 1.58 08/02/16 7,940 365 10.50 1.96 09/07/16 1,986 140 9.83 3.19 10/06/16 361 16 10.90 2.45 11/02/16 613 53 11.72 2.19 12/06/16 205 24 17.30 3.30 Maximum 7,940 365 0 0 0 0 0 0 0 17.30 5.06 Minimum 99 2 0 0 0 0 0 0 0 8.50 1.48 Average 1,278 63 11.34 2.61 #Tests 12 12 0 0 0 0 0 0 0 0 12 12 0 Site: SW-06 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Stateline ALPINE COUNTY SURFACEWATER QUALITY DATA • From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 81 10.7 7.75 38 1.00 3 69 83 1.8 0.02 0.01 1.72 82 83 8.9 7.70 32 3.43 11 55 63 1.1 0.04 0.03 1.46 84 10.1 7.72 38 2.42 10 56 82 2.2 0.04 0.02 1.59 85 9.5 7.84 42 1.88 4 63 99 4.0 0.03 0.30 1.85 86 7.2 7.90 35 1.98 7 58 76 2.3 0.03 0.01 1.47 87 10.6 7.36 48 1.38 4 79 110 4.3 0.03 0.02 2.19 88 10.7 7.59 48 3.46 9 90 125 6.1 0.04 0.02 2.10 89 9.8 7.69 42 1.72 6.5 77 109 5.0 0.03 0.02 1.75 90 9.6 7.82 47 1.86 3.0 88 118 4.9 0.03 0.02 0.02 2.06 91 9.4 7.62 45 1.82 5.2 78 107 4.4 0.05 0.01 0.02 1.95 92 10.1 7.81 45 1.83 3.8 79 113 4.2 0.03 0.01 0.02 1.88 93 7.8 7.72 35 2.13 8.3 63 82 2.2 0.03 0.01 0.02 1.54 94 9.9 7.85 42 0.91 2.3 72 98 2.4 0.03 0.01 0.02 1.80 95 8.0 7.62 32 1.86 11.7 61 75 2.0 0.04 0.01 0.01 1.34 96 9.7 7.51 35 1.69 5.4 63 80 2.1 0.03 0.01 0.02 1.46 97 9.1 7.53 34 2.53 8.2 62 76 1.7 0.04 0.01 0.02 1.73 98 8.9 7.31 35 1.64 5.6 61 78 2.0 0.03 0.01 0.01 1.49 99 10.5 7.33 33 1.09 6.7 60 78 1.6 0.03 < 0.01 0.02 1.59 00 10.0 7.30 36 1.69 6.9 66 82 2.2 0.03 < 0.01 0.02 1.61 01 12.4 7.46 38 1.96 4.0 65 92 2.2 0.02 0.01 0.01 1.74 02 11.0 7.66 36 1.84 3.9 64 81 2.2 0.03 < 0.01 0.02 1.59 03 9.7 7.61 37 3.29 6.6 67 84 2.5 0.03 0.01 0.02 1.65 04 10.5 7.52 37 4.30 9.6 65 81 2.3 0.03 < 0.01 0.02 1.56 05 9.3 7.37 34 2.98 5.8 61 69 2.6 0.02 < 0.01 0.02 1.47 06 9.2 7.11 30 3.61 8.5 54 49 1.5 0.03 < 0.01 0.02 1.27 07 11.7 7.73 33 2.03 3.9 63 83 2.1 0.02 < 0.01 0.01 1.77 08 11.5 7.94 38 1.56 2.4 63 86 2.8 0.03 < 0.01 0.01 1.86 09 9.5 7.73 36 2.71 5.8 65 80 .2.1 0.02 < 0.01 0.01 1.63 10 8.1 7.60 32 3.16 5.9 57 72 1.6 0.03 0.01 0.01 1.62 11 8.3 7.73 31 3.97 9.1 56 68 1.3 0.04 0.01 0.01 1.60 12 11.0 7.29 40 1.66 3.1 62 81 1.5 0.02 0.01 0.01 1.67 13 11.2 7.51 36 2.15 4.0 62 74 1.4 0.03 0.01 0.01 1.45 14 9.7 7.57 39 1.18 2.2 67 89 2.0 0.02 0.01 0.01 1.84 15 9.1 7.36 40 2.06 5.2 69 88 1.9 0.02 < 0.01 0.02 1.66 16 7.8 7.21 34 2.37 5.2 66 76 1.9 0.03 < 0.01 1.47 Maximum 12.4 7.94 48 4.30 11.7 90 125 6.1 0.05 0.02 0.30 2.19 Minimum 7.2 7.11 30 0.91 2.2 54 49 1.1 0.02 < 0.01 0.01 1.27 Average 9.7 7.58 38 2.20 5.9 66 85 2.5 0.03 0.01 0.02 1.67 #Tests 35 35 35 35 35 35 35 35 35 27 34 35 Site: SW-06 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Stateline ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 81 0.22 0.04 0.30 6 1 < 1 82 83 0.18 0.02 < 0.01 0.02 0.21 7 1 < 1 84 0.27 0.07 < 0.01 0.02 0.29 6 1 < 1 8.06 2.37 3.69 0.29 19.9 85 0.21 0.04 < 0.01 0.02 0.24 7 1 < 1 9.81 2.83 4.91 0.35 21.3 86 0.20 0.04 < 0.01 0.03 0:23 6 1 < 1 7.60 2.28 3.54 0.28 19.5 87 0.21 0.03 < 0.01 0.02 0.24 5 1 < 1 10.29 3.43 5.58 0.38 22.3 88 0.28 0.04 < 0.01 0.02 0.31 7 1 1 11.73 3.73 6.26 0.40 22.2 89 0.21 0.03 < 0.01 0.06 0.27 6 1.2 < 1 10.19 3.09 5.18 0.35 21.3 90 0.18 0.02 < 0.01 0.04 0.23 5 1.1 < 1 10.95 3.36 5.41 0.36 21.2 91 0.21 0.03 0.01 0.03 0.25 9 1.1 1 10.65 4.74 5.30 0.34 19.6 92 0.23 0.03 0.01 0.02 0.25 8 1.2 1 10.53 2.99 5.02 0.34 20.9 93 0.22 0.02 0.01 0.04 0.28 14 1.3 < 1 8.11 2.21 4.06 0.32 21.4 94 0.22 0.02 0.01 0.02 0.25 6 1.1 < 1 9.48 2.58 5.12 0.37 23.2 95 0.29 0.02 0.01 0.07 0.37 8 1.2 1 7.75 2.03 3.93 0.31 22.0 96 0.25 0.02 0.01 0.05 0.31 3 1.1 1 7.98 2.21 4.03 0.32 21.8 97 0.20 0.03 0.01 0.15 0.36 5 1.2 1 8.03 2.54 4.14 0.32 21.5 98 0.20 0.02 < 0.01 0.05 0.26 < 5 1.0 < 1 7.50 2.06 4.01 0.33 22.7 99 0.21 0.02 < 0.01 0.03 0.24 < 5 0.9 7.12 2.04 4.10 0.34 23.7 00 0.19 0.02 < 0.01 0.03 0.23 < 5 1.0 7.35 2.33 4.34 0.35 23.6 01 0.20 0.02 < 0.01 0.02 0.24 13 0.9 8.33 2.39 4.76 0.37 23.8 02 0.24 0.04 < 0.01 0.02 0.27 < 5 1.0 7.75 2.27 4.59 0.37 24.3 03 0.23 0.03 < 0.01 0.05 0.28 6 0.9 8.00 2.43 4.59 0.36 23.5 04 0.21 0.03 < 0.01 0.03 0.24 10 0.7 7.59 2.35 4.36 0.35 23.3 05 0.24 0.02 < 0.01 0.06 0.30 9 1.3 7.66 2.22 4.24 0.34 23.1 06 0.10 0.03 < 0.01 0.03 0.14 17 1.0 6.54 1.84 3.46 0.30 22.6 07 0.15 0.02 < 0.01 0.05 0.21 7 1.0 8.26 2.37 4.85 0.38 24.1 08 0.21 0.02 < 0.01 0.06 0.28 6 1.0 8.42 2.37 4.88 0.38 24.1 09 0.20 0.02 < 0.01 0.05 0.26 11 0.9 8.17 2.31 4.57 0.36 23.5 10 0.13 < 0.02 < 0.01 0.02 0.16 12 1.2 7.23 2.06 3.91 0.33 22.7 11 0.14 0.02 < 0.01 0.03 0.19 7 1.3 6.77 1.96 3.52 0.30 21.7 12 0.18 0.03 < 0.01 0.02 0.21 1.3 8.02 2.12 4.57 0.37 23.9 ,13 0.19 0.02 < 0.01 0.02 0.20 0.9 8.26 2.16 4.38 0.35 23.1 14 0.13 0.03 < 0.01 0.03 0.15 1.0 8.78 2.37 5.05 0.39 24.4 15 0.15 0.02 < 0.01 0.04 0.19 9.15 2.46 5.18 0.39 24.1 16 0.17 < 0.02 < 0.01 0.04 0.21 7.98 2.08 4.44 0.36 23.8 Maximum 0.29 0.07 0.01 0.15 0.37 17 1.3 1 11.73 4.74 6.26 0.40 24.4 Minimum 0.10 0.02 < 0.01 0.02 0.14 3 0.7 < 1 6.54 1.84 3.46 0.28 19.5 Average 0.20 0.03 0.01 0.04 0.25 7 1.1 1 8.49 2.50 4.54 0.35 22.5 #Tests 35 35 34 34 35 30 33 17 33 33 33 33 33 Site: SW-06 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Carson River,Stateline ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Coliforms Fecal/ Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies-----> < Filaments > <---Filamaments--> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # um #cells mg/L mg/L mg/L 81 1,843 1,191 488 50 403 42 312 2 63 6 82 83 4,216 1,060 843 0 0 20 310 0 0 0 9.67 0.69 26 84 4,137 1,724 306 53 9 14 8 783 312 13 8.81 1.85 32 85 879 754 83 0 0 7 1 27 2 0 9.34 2.09 36 86 2,082 522 318 0 0 2 98 139 5 4,178 9.54 9.08 30 87 1,009 639 251 0 0 46 577 115 4 1,339 9.37 6.64 35 88 666 288 176 0 0 0 0 369 13 554 10.78 6.01 89 669 465 286 0 0 0 0 392 167 11,149 10.69 5.34 90 1,074 178 318 0 0 0 0 0 0 222 8.43 5.71 46 91 774 181 65 0 0 0 0 0 0 0 8.75 5.60 41 92 516 101 60 0 0 0 0 0 0 0 9.26 5.60 30 93 2,450 1,088 60 0 0 0 0 0 0 0 9.93 4.49 27 94 3,094 315 540 0 0 0 0 0 0 0 9.43 5.65 34 95 580 59 50 0 0 0 0 0 0 0 9.65 4.84 25 96 799 205 55 0 0 0 0 0 0 0 8.80 3.19 28 97 323 88 230 0 0 0 0 0 0 0 9.65 3.16 29 98 333 63 130 0 0 13 72 0 0 0 8.65 2.60 25 99 1,799 109 130 0 0 0 0 0 0 0 9.28 2.74 00 1,503 119 60 0 0 0 0 0 0 0 9.33 3.05 01 681 137 130 0 0 0 0 0 0 0 9.47 2.68 02 509 135 58 0 0 0 0 0 0 0 8.85 2.66 03 275 72 68 0 0 0 0 0 0 0 8.58 2.69 04 794 81 42 0 0 0 0 0 0 0 8.76 2.74 05 167 53 26 0 0 0 0 0 0 0 9.14 2.63 06 832 87 29 0 0 0 0 0 0 0 9.58 1.67 07 485 210 43 0 0 0 0 0 0 0 8.70 2.62 08 267 142 230 0 0 0 0 0 0 0 9.13 3.33 09 446 61 26 0 0 0 0 0 0 0 9.30 2.68 10 1,305 181 77 0 0 0 0 0 0 0 8.86 2.30 11 2,718 1,676 77 0 0 0 0 0 0 0 9.66 1.54 12 737 107 12 0 0 0 0 0 0 0 8.49 2.21 13 2,391 193 14 0 0 0 0 0 0 0 8.97 2.29 14 1,633 206 13 0 0 0 0 0 0 0 9.23 2.84 15 1,867 61 10.59 3.01 16 1,278 63 11.34 2.61 Maximum 4,216 1,724 843 53 403 46 577 783 312 11,149 11.34 9.08 46 Minimum 167 53 12 0 0 0 0 0 0 0 8.43 0.69 25 Average 1,289 360 160 3 12 4 42 55 17 529 9.35 3.49 32 #Tests 35 35 33 33 33 33 33 33 33 33 34 34 14 Site: SW-06 Nitrate-Nitrogen Total Phosphorus 0.5 0.5 0.4 0.4 0.3 0.3 15) J _ J E - E - 0.2 0.2 0.1 0.1 • 0.00^ 00 90 0i 00 O^ 40 Oh '6i‘ 4 O^ (5‘b (0 0 Oma' �^ ^� ^5 0.0 4.. 9? OP 01 00 4' 0? Oh O'\ 04 ON <0 Oh 01 00 ^. ^4 ^h t Nitrate Linear(Nitrate) —*—Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 10 - 250 — 9 = - 8 _ 200 7 6 _ 150 E 5 75) • E - 4 = 100 3 _ 2 w =� 50 Nov1 0 0 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 4'' 4� 9 0 Oma' 4^ ,0 4h 41 0' ON Or Oy 01 6, '.'s t Chlorides Linear(Chlorides) tTDS Linear(TDS) Site: SW-07 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredricksburg Ditch,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 03/01/16 Dry 04/05/16 Dry 05/03/16 Dry 06/15/16 Dry 07/06/16 Dry 08/02/16 Dry 09/07/16 Dry 10/06/16 Dry 11/02/16 Dry Maximum Minimum Average #Tests 0 0 0 0 0 0 0 0 0 0 0 0 Site: SW-07 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredricksburg Ditch,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 03/01/16 04/05/16 05/03/16 06/15/16 07/06/16 08/02/16 09/07/16 10/06/16 11/02/16 Maximum < Minimum < < Average < #Tests 0 0 0 0 0 0 0 0 0 0. 0 0 0 Site: SW-07 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredricksburg Ditch,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 03/01/16 04/05/16 05/03/16 06/15/16 07/06/16 08/02/16 09/07/16 10/06/16 11/02/16 Maximum 0 0 0 0 0 0 0 Minimum 0 0 0 0 0 0 0 Average #Tests 0 0 0 0 0 0 0 0 0 0 0 0 0 Site: SW-07 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredricksburg Ditch,Upper ALPINE COUNTY SURFACE WATER QUALITY DATA From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 81 13.1 7.50 69 1.60 1 175 250 0.05 0.03 3.20 82 11.8 7.54 73 6.78 26 139 182 24.5 0.13 0.09 4.90 83' 18.0 7.63 68 2.35 5 128 165 10.2 0.07 0.05 4.44 84 15.0 7.63 59 4.30 11 95 155 9.7 0.110.05 3.33 85 16.0 7.51 60 2.60 5 113 174 11.6 0.09 � 0.03 3.70 86 12.5 7.79 70 5.07 4 125 171 8.4 0.09 0.02 4.10 87 16.3 7.61 86 5.75 19 176 267 20.8 0.20 < 0.01 6.75 88 13.1 7.31 70 4.32 8 158 232 19.9 0.07 0.02 5.32 89 17.6 7.39 72 12.08 26.0 166 257 27.9 0.21 0.03 5.22 90 9.6 7.46 68 3.13 6.0 158 292 34.5 0.06 0.02 0.03 3.42 91 14.3 7.22 69 2.96 12.6 198 262 42.2 0.17 0.06 0.04 4.48 92 11.9 7.40 82 2.63 6.0 244 344 48.1 0.25 0.15 0.05 7.73 93 14.0 7.12 72 4.20 7.4 166 243 26.3 0.21 0.13 0.03 5.32 94 10.8 7.87 80 2.30 19.0 240 313 33.4 0.12 0.03 0.02 3.63 95 18.3 6.90 63 3.37 4.7 122 147 5.9 0.17 0.10 0.03 4.70 96 21.2 7.03 76 5.20 5.5 140 199 11.6 0.19 0.10 0.03 4.80 97 19.6 7.44 64 7.00 54.0 129 155 7.2 0.24 0.08 0.04 3.70 98 17.0 7.04 60 3.40 6.4 114 144 5.9 0.13 0.07 0.03 3.55 99 20.0 7.15 87 2.50 3.8 159 208 7.6 0.12 0.08 0.03 4.51 00 15.7 7.11 64 24.23 40.5 143 193 14.3 0.46 0.21 0.07 6.83 01 16.6 7.21 72 7.48 5.2 146 223 18.1 0.24 0.22 0.04 5.30 02 14.9 7.43 82 5.52 4.0 148 212 14.9 0.14 0.05 0.04 4.60 03 14.5 7.54 67 7.69 11.7 143 194 14.4 0.23 0.13 0.05 4.33 04 14.0 7.41 48 12.75 26.0 133 183 13.6 0.08 0.06 0.03 5.03 05 14.7 6.87 65 7.28 8.7 149 184 17.4 0.31 0.22 0.05 4.62 06 16.3 7.18 68 4.45 5.3 115 131 5.9 0.15 0.05 0.04 3.04 07 15.3 7.53 77 4.92 8.6 149 212 16.1 0.14 0.07 0.04 4.80 08 7.9 7.51 50 43.00 71.3 114 140 7.3 0.40 0.14 0.02 8.66 09 14.1 7.68 89 20.73 32.5 167 229 15.6 0.16 0.02 0.03 5.82 10 11.8 7.38 75 82.48 75.3 147 211 14.9 0.37 0.03 0.03 5.54 11 12.4 7.52 62 49.62 85.3 114 148 6.8 0.44 0.06 0.03 5.81 12 20.6 7.11 70 9.50 13.7 153 257 16.5 0.27 0.14 0.04 5.56 13 14.6 7.12 74 7.50 5.9 148 197 12.4 0.22 0.04 0.03 4.75 14 8.8 7.13 81 5.13 5.6 170 247 19.2 0.13 0.04 0.04 6.13 15 13.7 7.24 106 2.80 3.1 170 274 23.5 0.09 0.05 0.05 3.93 16 Maximum 21.2 7.87 106 82.48 85.3 244 344 48.1 0.46 0.22 0.09 8.66 Minimum 7.9 6.87 48 1.60 1.0 95 131 5.9 0.05 0.02 < 0.01 3.04 Average 14.7 7.36 71 10.76 18.1 150 211 17.3 0.19 0.09 0.04 4.90 #Tests 35 35 35 35 35 35 35 34 35 26 35 35 Site: SW-07 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredricksburg Ditch,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 81 0.39 0.05 0.61 7 1 < 1 82 0.80 0.03 1.03 28 1 < 1 83 0.69 0.09 < 0.01 0.09 0.80 23 2 < 1 84 0.44 0.09 0.01 0.24 0.69 12 1 < 1 15.33 3.20 8.93 0.52 24.2 85 0.59 0.10 0.01 0.04 0.64 17 1 < 1 14.47 3.48 10.73 0.62 26.9 86 0.51 0.07 0.01 0.16 0.68 17 1 < 1 15.67 3.89 9.33 0.57 25.4 87 1.32 0.20 < 0.01 0.22 1.55 36 5 < 1 24.00 5.85 17.50 0.85 28.2 88 0.78 0.08 0.01 0.12 0.91 15 2 1 22.50 6.03 12.50 0.60 23.6 89 0.94 0.08 < 0.01 0.14 1.09 16 2.0 < 1 23.40 6.05 15.80 0.72 26.3 90 0.24 0.03 < 0.01 0.31 0.56 6 1.2 < 1 26.00 6.78 14.36 0.64 24.5 91 0.64 0.09 0.04 0.63 1.31 21 2.2 < 1 27.60 6.82 19.64 0.85 28.3 92 1.26 0.03 0.02 0.28 1.56 3 3.3 < 1 28.67 7.40 26.67 1.17 33.7 93 0.84 0.03 0.02 0.44 1.30 18 1.8 2 23.00 5.78 16.76 0.80 29.0 94 0.95 0.03 0.01 0.44 1.39 10 4.0 < 1 23.00 5.67 13.10 0.64 26.5 95 1.00 0.04 0.01 0.06 1.06 2.0 1 16.67 4.00 7.80 0.44 20.9 96 1.01 0.04 0.02 0.27 1.29 2.0 1 18.00 4.20 12.50 0.69 28.3 97 1.16 0.05 0.01 0.07 1.24 34 4.5 1 16.00 4.15 10.25 0.59 26.5 98 0.73 0.03 0.01 0.13 0.87 1.7 < 1 12.50 3.24 10.70 0.70 32.2 99 0.67 0.03 < 0.01 0.41 1.10 1.1 19.95 4.23 14.30 0.79 30.7 00 1.65 0.32 0.05 0.63 2.33 3.4 13.36 4.66 17.17 1.03 37.3 01 1.43 0.04 0.09 0.78 2.30 1.0 16.30 4.23 19.75 1.13 39.1 02 0.63 0.04 < 0.01 0.34 0.97 1.1 19.17 4.95 17.50 0.92 33.7 03 0.84 0.18 0.04 0.52 1.40 27 2.1 15.36 4.23 13.77 0.79 32.4 04 0.77 0.19 0.01 0.38 1.15 25 2.0 10.49 3.45 9.01 0.62 29.5 05 1.11 0.44 0.07 0.50 1.68 34 2.6 13.55 3.74 15.52 0.94 34.7 06 0.75 0.13 0.01 0.14 0.90 1.5 15.05 3.50 9.01 0.54 26.1 07 0.55 0.25 0.03 0.93 1.51 24 1.7 16.48 4.72 19.37 1.08 37.5 08 1.32 0.08 0.01 0.10 1.43 8.9 11.70 4.18 10.70 0.68 28.8 09 0.83 0.03 < 0.01 0.23 1.07 2.6 19.47 5.90 17.73 0.90 32.3 10 0.72 0.03 < 0.01 0.63 1.36 1.9 16.90 6.13 14.69 0.78 29.4 11 1.23 0.07 0.02 0.17 1.42 21 2.7 12.63 4.71 10.73 0.66 29.1 12 3.25 2.10 0.02 1.07 4.34 5.0 16.87 4.87 19.77 1.10 38.4 13 1.05 0.05 0.02 0.47 1.52 2.9 16.70 4.29 15.28 0.86 33.4 14 0.60 0.05 < 0.01 0.97 1.57 1.7 19.07 5.18 20.87 1.09 36.9 15 0.40 0.02 < 0.02 1.28 1.68 20.85 5.46 23.75 1.20 39.4 16 Maximum 3.25 2.10 0.09 1.28 4.34 36 8.9 2 28.67 7.40 26.67 1.20 39.4 Minimum 0.24 0.02 < 0.01 0.04 0.56 3 1.0 < . 1 10.49 3.20 7.80 0.44 20.9 Average 0.92 0.15 0.02 0.40 1.32 20 2.4 1 18.15 4.84 14.86 0.80 30.4 #Tests 35 35 33 33 35 20 34 18 32 32 32 32 32 Site: SW-07 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredricksburg Ditch,Upper ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Coliforms Fecal/ Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 81 1,120 763 216 56 193 13 90 3 46 10 82 5,380 1,608 3,306 126 930 104 1,122 4 84 92 83 6,700 5,965 2,515 5 10 65 780 35 920 20 7.75 2.16 61 84 1,500 958 1,355 2 1 5 2 142 7 72 8.63 12.43 53 85 9,110 1,343 843 0 0 0 0 277 2 0 7.70 3.31 50 86 17,533 3,133 710 0 0 0 0 0 0 369 7.63 < 10.00 60 87 > 24,000 17,500 5,545 0 0 0 0 0 0 277 7.05 13.43 86 88 7,966 3,872 998 0 0 0 0 0 0 277 10.81 13.23 89 10,688 -9,065 8,498 0 0 0 0 0 0 1,708 8.93 15.53 90 1,646 510 183 0 0 0 0 0 0 0 8.80 17.88 78 • 91 12,366 7,696 430 0 0 21 648 0 0 0 7.47 18.75 48 92 11,810 9,677 90 0 0 0 0 0 0 0 7.90 25.01 122 93 13,640 6,136 230 0 0 0 0 0 0 0 7.64 13.46 64 94 4,053 630 260 0 0 0 0 0 0 0 10.90 17.63 99 95 12,167 9,677 0 0 0 0 0 0 0 6.72 6.97 96 24,000 17,500 0 0 0 0 0 0 0 7.95 8.27 97 17,500 5,515 4,600 0 0 0 0 0 0 0 8.08 7.31 53 98 4,600 2,400 0 0 0 0 0 0 0 9.00 4.00 99 7,800 3,050 0 0 0 0 0 0 0 5.35 5.96 00 11,067 10,333 0 0 0 0 0 0 0 7.40 8.25 01 5,620 5,620 0 0 0 0 0 0 0 8.85 7.14 02 1,187 540 0 0 0 0 0 0 0 8.69 7.04 03 4,875 2,783 240 0 0 9 528 0 0 0 7.33 5.08 04 7,800 5,620 240 0 0 0 0 0 0 0 7.58 7.13 05 2,538 2,040 230 0 0 0 0 0 0 0 7.90 5.42 06 965 680 0 0 0 0 0 0 0 8.57 2.12 07 3,578 790 93 0 0 0 0 - 0 0 0 7.94 6.32 • 08 2,400 2,400 0 0 0 0 0 0 0 7.08 4.93 09 7,643 3,820 0 0 0 0 0 0 0 9.86 7.30 10 4,325 3,958 0 0 7 83 0 0 0 7.68 6.87 11 5,666 5,524 43 0 0 0 0 0 0 0 8.45 2.32 12 11,000 7,643 0 0 9 297 0 0 0 7.43 24.37 13 4,733 3,690 90 0 0 0 0 0 0 0 7.90 8.43 14 7,477 4,443 0 0 0 0 0 0 0 7.23 9.46 15 2,755 317 7.81 10.55 16 Maximum > 24,000 17,500 8,498 126 930 104 1,122 277 920 1,708 10.90 25.01 122 Minimum 965 317 43 0 0 0 0 0 0 0 5.35 2.12 48 Average 7,920 .4,777 1,463 6 33 7 104 14 31 83 8.06 9.64 70 #Tests 35 35 21 34 34 34 34 34 34 34 33 33 11 Site: SW-07 Nitrate-Nitrogen Total Phosphorus 1.0 _ 1.0 - 0.9 = 1if 0.9 0.8 = 0.8 0.7 = 0.7 : 0.6 : T 0.6 E 0.5 _ E / 0 .5 0.4 : Al 0.4 -_ t • 0.3 _ All 0.3 _ 0.2 , 0.2 _ ' riv, 0.1 = - , 0.1 0.0 - 0.0 . ., O^ 00 00 e e O^ 00 00 0� 00 O, e e 6 00 ^' ^O 15 0^ 00 el' . 4 00 9^ 00 CO 4 90, 0 00 0 O1. OO. ^^ 0 ^O. t Nitrate —Linear(Nitrate) —•—Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 100 1 500 90 80 400 70 = 60 : 300 _ J J II 50 " rn - E E - 40 = 200 - 30 _ 20 _ vir _ 100 10 " 7AV`V 0 -- 0 . . . _ 0'• 00 Oh 01 OP' ON OO 00 01 91 O^ 00 0 6 Oma' '''s 0 0 O^ 0 0 01 0 O^ 00 00 4 Oma' O• 0 00 6 Oma' .•^ 0 0 —•—Chlorides Linear(Chlorides) —*—TDS —Linear(TDS) Site: SW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Irrigation Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 03/01/16 11.3 6.88 40.4 0.5 0.7 102 97.4 2.62 < 0.010 < 0.010 3.89 04/05/16 8.2 7.28 67.5 3.5 15.2 125 136 0.83 0.079 0.015 2.16 05/03/16 12.2 5.49 67.3 1.8 3.0 134 142 < 0.50 0.108 0.026 1.06 06/15/16 Dry 07/06/16 22.0 6.67 97.4 3.2 10.7 183 210 2.27 0.281 0.144 7.21 08/02/16 Dry 09/07/16 Dry 10/06/16 Dry 11/02/16 Dry Maximum 22.0 7.28 97.4 3.5 15.2 183 210 2.62 0.281 0.144 7.21 Minimum 8.2 5.49 40.4 0.5 0.7 102 97.4 < 0.50 0.010 < 0.010 1.06 Average 13.4 6.58 68.2 2.3 7.4 136 146 1.55 0.120 0.049 3.58 #Tests 4 4 4 4 4 4 4 4 4 4 0 4 r Site: SW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Irrigation Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 • Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L cyo 03/01/16 0.659 0.020 < 0.010 < 0.010 0.659 8.28 2.14 8.21 0.660 34.10 04/05/16 0.727 0.025 < 0.010 0.020 0.747 12.20 3.47 13.00 0.850 37.30 05/03/16 0.890 0.024 < 0.010 0.040 0.930 11.60 2.92 16.30 1.110 45.60 06/15/16 07/06/16 1.200 0.025 < 0.010 < 0.010 1.200 22.40 4.45 12.30 0.620 24.30 08/02/16 09/07/16 10/06/16 11/02/16 Maximum 1.200 0.025 < 0.010 0.040 1.200 22.40 4.45 16.30 1.110 45.60 Minimum 0.659 < 0.020 < 0.010 < 0.010 0.659 8.28 2.14 8.21 0.620 24.30 Average 0.869 0.024 < 0.010 0.020 0.884 13.62 3.25 12.45 0.810 35.33 #Tests 4 4 4 4 4 0 0 0 4 4 4 4 4 Site: SW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Irrigation Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 2016 Coliforms Fecal < Blue Green Algae > SingleHard- Total E.coli Strep < Colonies > < Filaments-----> <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 03/01/16 573 2 9.46 4.80 04/05/16 5,940 < 1 10.60 4.06 05/03/16 6,867 3 5.18 3.09 06/15/16 07/06/16 111,990 38,730 2.21 2.78 08/02/16 09/07/16 10/06/16 11/02/16 Maximum 111,990 38,730 0 0 0 0 0 0 0 10.60 4.80 Minimum 573 < 1 0 0 0 0 0 0 0 2.21 2.78 Average 31,343 9,684 6.86 3.68 #Tests 4 4 0 0 0 0 0 0 0 0 4 4 0 Site: SW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Irrigation Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 81 13.2 7.72 61 2.24 17 116 134 0.04 0.02 2.51 82 15.3 7.53 57 2.40 8 98 119 0.04 0:04 2.16 83 13.8 7.72 56 3.62 12 96 117 1.4 0.11 0.04 2.33 84 14.2 7.56 57 4.59 18 88 114 1.1 0.12 0.05 2.51 85 14.2 7.63 57 3.53 21 85 116 1.9 0.12 0.15 2.63 86 12.4 7.63 55 3.52 18 89 111 1.3 0.13 0.02 2.50 87 13.4 7.28 57 2.48 13 93 119 1.8 0.10 0.02 2.28 88 12.7 7.63 55 3.03 19 95 117 1.3 0.07 0.01 1.98 89 13.7 7.49 53 2.79 12.9 94 118 1.5 0.08 0.02 2.17 90 14.1 7.56 54 4.01 23.5 102 111 1.2 0.09 0.03 0.03 2.18 91 15.0 7.28 57 2.19 8.3 98 122 1.3 0.05 0.02 0.02 2.21 92 14.5 7.53 54 2.44 12.7 96 122 1.3 0.07 0.02 0.02 2.19 93 13.2 7.59 55 2.78 13.7 99 124 1.6 0.07 0.02 0.02 2.36 94 13.3 7.40 49 2.87 11.3 96 127 1.6 0.08 0.02 0.02 2.40 95 13.7 7.42 60 1:80 9.1 104 129 1.7 0.07 0.02 0.02 2.08 96 14.5 7.62 55 4.89 22.7 96 118 1.5 0.10 0.03 0.02 2.14 97 13.6 7.66 52 4.25 20.4 97 109 1.8 0.10 0.04 0.02 2.63 98 13.7 7.23 52 3.42 27.2 91 109 1.8 0.09 0.02 0.01 2.38 99 15.6 7.31 49 3.08 17.8 90 111 1.6 0.07 0.02 0.01 2.30 00 13.9 7.13 49 3.37 33.6 91 109 1.6 0.09 0.02 0.02 2.16 01 15.8 7.45 55 5.24 15.4 98 122 1.9 0.16 0.03 0.02 2.42 02 16.0 7.32 60 3.70 20.2 100 127 1.6 0.06 0.02 0.02 2.24 03 13.1 7.46 57 6.40 19.0 97 114 1.6 0.06 0.02 0.02 2.30 04 17.2 7.52 58 15.68 40.1 98 122 1.8 0.13 0.02 0.03 2.70 05 14.1 7.13 54 4.31 10.1 101 105 1.5 0.05 0.03 0.02 2.05 06 16.7 6.97 58 2.55 4.7 103 112 1.5 0.09 0.03 0.02 2.21 07 13.8 7.43 57 6.78 18.0 102 125 1.7 0.07 0.02 0.02 3.05 08 16.2 7.56 55 11.24 28.3 100 113 1.8 0.10 0.02 0.01 2.60 09 14.3 7.39 53 13.06 45.5 100 115 1.5 0.10 0.02 0.01 2.53 10 12.7 7.15 46 4.98 14.1 94 104 1.6 0.07 0.02 0.01 2.62 11 15.4 7.45 52 7.60 14.7 101 108 1.5 0.09 0.02 0.01 2.94 12 16.2 6.93 60 7.77 16.1 101 125 1.5 0.07 0.01 0.02 2.43 13 14.6 7.11 64 5.43 18.7 114 133 1.7 0.09 0.02 0.02 3.06 14 11.4 7.03 58 9.56 29.4 109 131 1.9 0.23 0.02 0.02 3.75 15 13.6 6.84 57 26.90 92.3 126 143 2.4 0.47 0.03 0.01 3.71 16 13.4 6.58 68 2.26 7.4 136 146 1.6 0.12 0.05 3.58 Maximum 17.2 7.72 68 26.90 92.3 136 146 2.4 0.47 0.05 0.15 3.75 Minimum 11.4 6.58 46 1.80 4.7 85 104 1.1 0.04 0.01 0.01 1.98 Average ..14.2 7.37 56 5.47 20.4 100 119 1.6 0.10 0.02 0.02 2.51 #Tests 36 36 36 36 36 36 36 34 36 27 35 36 Site: SW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Irrigation Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 81 0.37 0.03 0.50 13 1 < 1 82 0.47 0.02 0.70 17 1 < 1 83 0.38 0.06 0.01 0.10 0.49 13 1 < 1 84 0.39 0.07 < 0.01 0.15 0.55 10 1 < 1 10.55 2.66 8.28 0.59 30.6 85 0.38 0.06 < 0.01 0.11 0.49 13 1 < 1 11.03 2.64 8.51 0.60 30.6 86 0.38 0.05 < 0.01 0.19 0.57 14 1 2 10.49 3.05 6.59 0.46 25.4 87 0.32 0.03 < 0.01 0.14 0.48 10 1 < 1 11.23 2.71 8.28 0.66 29.9 88 0.40 0.04 < 0.01 0.16 0.58 8 1 < 1 11.55 2.81 8.77 0.60 30.7 89 0.45 0.06 < 0.01 0.12 0.58 12 1.5 < 1 10.73 2.58 8.02 0.56 30.0 90 0.44 0.03 < 0.01 0.16 0.61 16 1.4 < 1 11.53 2.66 8.88 0.60 31.1 91 0.36 0.04 0.01 0.16 0.54 18 1.1 1 11.70 2.82 7.68 0.52 27.6 92 0.46 0.03 0.01 0.13 0.60 14 1.3 < 1 11.46 2.58 8.45 0.58 30.2 93 0.42 0.03 0.01 0.32 0.75 14 1.2 < 1 12.12 2.83 8.80 0.59 29.5 94 0.50 0.03 0.01 0.35 0.86 6 1.3 < 1 13.42 3.13 9.35 0.59 29.7 95 0.48 0.02 0.01 0.34 0.84 7 1.5 1 12.40 2.77 9.72 0.65 31.9 96 0.44 0.03 0.01 0.33 0.78 5 1.4 1 10.98 2.59 8.99 0.63 32.3 97 0.40 0.03 0.01 0.40 0.81 12 1.8 1 11.18 2.73 8.50 0.58 . 30.3 98 0.42 0.02 < 0.01 0.26 0.69 6 1.1 < 1 10.28 2.46 8.62 0.62 32.3 99 0.44 0.02 < 0.01 0.27 0.72 9 1.0 9.79 2.48 8.99 0.66 33.5 00 0.46 0.03 < 0.01 0.20 0.66 17 1.1 9.06 2.57 8.12 0.61 32.4 01 0.40 0.03 < 0.01 0.16 0.56 14 0.7 10.38 2.81 9.42 0.68 33.8 . 02 0.39 0.05 < 0.01 0.12 0.52 10 0.9 11.66 2.73 9.96 0.68 33.5 03 0.47 0.03 < 0.02 0.13 0.62 15 0.8 12.29 3.09 10.71 0.70 33.6 04 0.79 0.04 < 0.01 0.17 0.97 19 1.9 11.05 2.87 8.96 0.62 31.2 05 0.45 0.03 < 0.01 0.09 0.55 9 1.3 10.59 2.59 9.18 0.65 33.3 06 0.36 0.04 < 0.01 0.03 0.40 12 1.6 11.36 2.60 9.80 0.69 33.9 07 0.46 0.03 < 0.01 0.06 0.53 22 1.2 11.57 2.79 10.01 0.69 33.0 08 0.70 0.02 < 0.01 0.02 0.72 22 1.7 10.91 2.72 9.50 0.66 32.7 09 0.90 0.03 < 0.01 0.05 0.96 28 1.5 10.73 2.67 9.75 _0.69 33.8 10 0.61 0.04 < 0.01 0.04 0.66 35 1.6 9.29 2.43 8.59 0.64 32.8 11 0.68 0.02 0.01 0.03 0.72 19 2.0 9.72 2.65 8.94 0.66 32.2 12 0.56 0.03 < 0.01 0.03 0.59 1.5 11.41 2.75 9.94 0.69 33.6 13 0.59 0.03 < 0.01 0.01 0.59 1.2 12.75 2.94 10.78 0.72 33.8 14 0.90 0.04 0.02 0.01 0.91 2.2 11.93 2.87 10.50 0.73 34.0 15 1.38 0.08 < 0.01 0.02 1.39 12.74 3.14 12.00 0.82 36.1 16 0.87 0.02 < 0.01 0.02 0.88 13.62 3.25 12.45 0.81 35.3 Maximum 1.38 0.08 0.02 0.40 1.39 35 2.2 2 13.62 3.25 12.45 0.82 36.1 Minimum 0.32 0.02 < 0.01 0.01 0.40 5 0.7 < 1 9.06 2.43 6.59 0.46 25.4 Average 0.52 0.04 0.01 0.14 0.68 14 1.3 1 11.26 2.76 9.24 0.64 32.0 #Tests 36 36 34 34 36 31 34 18 33 33 33 33 33 Site: SW-08 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Irrigation Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA From: 1981 To: 2016 Coliforms Fecal/ Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 81 2,064 752 392 18 75 61 424 4 160 15 82 6,870 1,963 381 36 95 67 438 8 205 45 83 1,785 672 132 10 20 37 385 30 1,852 20 8.02 2.50 46 84 3,100 893 409 74 2 5 21 517 718 7 7.70 1.52 40 85 2,463 471 207 0 0 0 0 185 5 0 7.53 1.01 40 86 1,830 407 546 0 0 0 0 115 3 646 7.64 9.25 38 87 891 669 213 0 0 23 508 69 3 4,778 7.90 6.12 40 88 3,368 496 300 0 0 0 0 25 0 201 8.94 5.01 89 5,282 2,973 4,245 0 0 0 0 69 3 324 7.42 5.79 90 3,842 1,739 4,354 0 0 0 0 0 0 0 6.90 6.53 41 91 3,651 203 130 0 0 0 0 0 0 0 7.16 6.70 41 92 6,618 844 220 0 0 0 0 0 0 0 7.62 7.07 44 93 2,638 114 80 0 0 0 0 0 0 0 8.10 6.95 37 94 2,548 309 580 0 0 6 8 0 0 0 7.49 7.01 39 95 2,694 651 1,315 0 0 0 0 0 0 0 8.03 6.13 43 96 3,420 2,091 994 0 0 0 0 0 0 0 7.55 2.86 7 97 3,222 1,518 330 0 0 0 0 0 0 0 8.03 3.86 38 98 2,963 1,336 390 0 0 0 0 0 0 0 8.08 3.87 40 99 4,543 2,312 160 0 0 0 0 0 0 0 7.49 4.41 00 5,586 2,661 160 0 0 0 0 0 0 0 8.69 4.55 01 5,100 3,388 580 0 0 0 0 0 0 0 7.53 4.87 02 3,269 1,263 152 0 0 8 59 0 0 0 6.44 4.48 03 2,217 577 235 0 0 0 0 0 0 0 7.32 4.29 04 2,809 374 92 0 0 4 70 0 0 0 6.35 5.06 05 4,024 1,152 230 0 0 0 0 0 0 0 6.63 4.94 06 1,469 595 43 0 0 0 0 0 0 0 6.37 3.26 07 1,632 161 227 0 0 0 0 0 0 0 6.84 5.59 08 3,643 3,020 255 0 0 0 0 0 0 0 6.32 4.62 09 5,688 3,828 772 0 0 0 0 0 0 0 6.33 5.64 10 5,976 5,544 1,500 0 0 0 0 0 0 0 6.55 5.39 11 6,224 2,917 93 0 0 0 0 0 0 0 6.32 3.42 12 2,255 592 54 0 0 0 0 0 0 0 5.88 3.33 13 3,154 1,910 20 0 0 0 0 0 0 0 5.33 3.96 14 4,463 3,090 277 0 0 0 0 0 0 0 6.28 5.03 15 5,301 407 5.53 8.48 16 31,343 9,684 6.86 3.68 Maximum 31,343 9,684 4,354 74 95 67 508 517 1,852 4,778 8.94 9.25 46 Minimum 891 114 20 0 0 0 0 0 0 0 5.33 1.01 7 Average 4,387 1,710 590 4 . 6 6 56 30 87 178 7.15 4.92 38 #Tests 36 36 34 34 34 34 34 34 34 34 34 34 14 Site: SW-08 Nitrate-Nitrogen Total Phosphorus 0.5 0.5 0.4 0.4 0.3 0.3 0.2 E 0.2 - VW WW 0.0 - 0.0 * 0 00 O'\ 00 00 01 00 O^ 00 00 * 0 q^ ^ .� On O'y 00 0'1 00 0^ 0 00 0'1 00 ON 00 OO 01 00 \'` —4—Nitrate Linear(Nitrate) t Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 10 . 250 9 8 : 200 7. 7 : 6 : 150 - J J _ rn 5 : rn 4 : 100 3 : 2 : 50 - — 1 : 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 O 4's 0' 0 0,\ 45' 4, 00 04 4k 0' 4, 4' 00 cs% e —4—Chlorides Linear(Chlorides) —.--TDS Linear(TDS) IRRIGATION DITCHES Site: SW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Bruns Diversion ALPINE COUNTY SURFACEWATER QUALITY DATA 25"above Fredericksburg Ditch 2016 Temp Alkalinity Turbidity SS TDS . EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L , mg/L mg/L mg/L 05/03/16 8.0 5.70 56 54 1.1 0.03 0.02 06/15/16 10.5 7.63 50 53 0.7 0.04 < 0.01 07/06/16 21.8 7.35 253 516 59.4 2.80 2.72 08/02/16 22.4 8.02 33.3 272 572 20.5 3.16 0.95 09/07/16 18.5 8.32 284 517 63.9 3.78 3.20 10/06/16 7.6 7.98 283 578 55.7 3.88 3.13 Maximum 22.4 8.32 33.3 284 578 63.9 3.88 3.20 Minimum 7.6 5.70 33.3 50 53 0.7 0.03 0.01 Average 14.8 7.50 33.3 200 382 33.5 -2.28 1.67 #Tests 6 6 0 0 1 6 6 6 6 6 0 0 Site: SW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Bruns Diversion ALPINE COUNTY SURFACEWATER QUALITY DATA 25"above Fredericksburg Ditch 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 05/03/16 0.12 < 0.02 < 0.01 < 0.01 0.12 06/15/16 0.21 < 0.02 < 0.01 < 0.01 0.21 07/06/16 13.80 12.60 1.40 3.54 18.70 08/02/16 13.80 9.72 0.57 1.51 15.90 09/07/16 11.10 8.01 1.03 2.99 15.10 10/06/16 16.70 14.20 1.09 4.07 21.90 Maximum 16.70 14.20 1.40 4.07 21.90 Minimum 0.12 < 0.02 < 0.01 < 0.01 0.12 Average 9.29 7.43 0.68 2.02 11.99 #Tests 6 6 6 6 6 0 0 0 0 0 0 0 0 Site: SW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Bruns Diversion ALPINE COUNTY SURFACEWATER QUALITY DATA 25"above Fredericksburg Ditch 2016 Coliforms Fecal < • Blue Green Algae > Single Hard- Total E.coli Strep <-----Colonies-----> < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 05/03/16 10.74 ' 1.5 06/15/16 10.60 1.3 07/06/16 7.70 15.9 08/02/16 9.02 5.0 09/07/16 7.66 15.7 10/06/16 9.66 18.1 Maximum 10.74 18.1 Minimum 7.66 1.3 Average 9.23 9.6 #Tests 0 0 0 0 0 0 0 0 0 0 6 6 0 Site: SW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Bruns Diversion ALPINE COUNTY SURFACEWATER QUALITY DATA 25"above From 1981 Fredericksburg Ditch To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mq/L mg/L mg/L mg/L mg/L 01 18.6 8.23 243 489 62.2 2.69 2.56 03 17.5 8.01 296 436 57.2 2.48 2.26 03 17.0 7.93 241 465 58.2 2.56 2.35 04 17.7 8.16 243 490 61.8 3.13 2.95 05 16.1 7.83 217 361 39.1 2.37 2.32 06 17.5 8.24 229 438 47.4 2.57 2.40 07 18.2 8.26 270 503 56.0 3.19 2.90 08 17.4 8.25 254 470 54.7 3.31 2.99 09 20.2 8.38 259 503 53.6 3.40 3.20 10 17.5 8.25 257 483 53.6 3.14 2.95 11 18.2 8.35 205 388 43.7 1.99 1.90 12 20.6 8.45 256 468 52.6 2.98 2.73 13 18.0 8.02 252 448 50.6 2.65 2.54 14 17.3 8.16 286 524 44.6 3.31 2.28 15 17.0 7.97 278 489 53.8 3.27 3.11 16 14.8 7.50 33.3 200 382 33.5 2.28 1.67 Maximum 20.6 8.4533.3 296 524 62.2 3.40 3.20 Minimum 14.8 7.50 33.3 200 361 33.5 1.99 1.67 Average 17.7 8.12 33.3 249 459 51.4 2.83 2.57 #Tests 16 •16 0 0 1 16 16 16 16 16 0 0 Site: SW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Bruns Diversion ALPINE COUNTY SURFACEWATER QUALITY DATA 25"above From: 1981 Fredericksburg Ditch To: 2016 Oil& TKN NIi3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 01 15.37 13.97 0.59 1.44 17.39 03 11.48 9.00 1.97 2.78 16.23 03 13.92 11.50 0.71 2.77 17.40 04 14.48 13.51 0.68 2.89 18.04 05 10.14 9.17 0.55 1.78 12.47 06 14.26 13.12 0.53 1.69 16.52 07 16.92 14.24 0.63 1.22 18.77 08 12.68 10.19 0.88 2.58 16.13 09 13.13 12.17 1.15 2.24 9.91 10 12.00 9.95 1.15 2.93 16.07 11 8.30 6.11 1.46 3.34 13.11 12 11.91 9.27 1.82 4.21 17.94 13 11.85 9.59 0.86 4.01 16.72 14 15.63 11.92 0.55 3.74 19.93 15 10.64 8.48 1.79 6.10 18.53 16 9.29 7.43 0.68 2.02 11.99 Maximum 16.92 14.24 1.97 6.10 19.93 Minimum 8.30 6.11 0.53 1.22 9.91 Average 12.63 10.60 1.00 2.86 16.07 #Tests 16 16 16 16 16 0 0 0 0 0 0 0 0 Site: SW-12 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Bruns Diversion ALPINE COUNTY SURFACEWATER QUALITY DATA 25"above From: 1981 Fredericksburg Ditch To: 2016 Coliforms Fecal/ Fecal < Blue Green Algae > Single Hard- Total E.coli Strep <-----Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 01 7.95 18.72 03 6.44 16.96 03 6.82 18.70 04 8.27 16.85 05 6.96 13.11 06 7.53 13.26 07 6.94 15.22 08 7.31 15.28 09 7.70 15.80 10 6.35 15.55 11 7.58 12.47 12 6.32 15.17 13 6.53 15.50 14 7.17 12.29 15 7.85 18.10 16 9.23 9.59 Maximum 0 0 0 0 0 0 0 9.23 18.72 Minimum 0 0 0 0 0 0 0 6.32 9.59 Average 7.31 15.16 #Tests 0 0 0 0 0 0 0 0 0 0 16 16 0 Site: SW-12 Nitrate-Nitrogen Total Phosphorus 10.0 - 10.0 9.0 9.0 8.0 8.0 : 7.0 7.0 6.0 6.0 rn 5.0 - rn 5.0 : E - E 4.0 4.0 : 3.0 3.0 : 2.0 2.0 : 1.0 1.0 : 0.0 0.0 01 03 03 04 05 06 07 08 09 10 11 12 13 14 15 16 01 03 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —I—Nitrate Linear(Nitrate) Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 100 _ 500 90 -: 80 -: 400 70 : 60 : 300 - E 50 � 40 200 30 • 20 -: 100 10 : 0 0 , 01 03 03 04 05 06 07 08 09 10 11 12 13 14 15 16 01 03 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —4—Chlorides Linear(Chlorides) --•—TDS Linear(TDS) Site: SW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredericksburg Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 100'below confluence with reclaimed water 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 05/03/16 7.8 6.53 57 56.0 1.080 0.113 0.012 06/15/16 10.8 7.61 61 53 0.731 0.039 < 0.010 07/06/16 14.8 6.81 54 73.4 2.690 0.045 0.019 08/02/16 17.3 7.10 0.80 96 158 12.000 0.572 0.490 09/07/16 17.6 8.32 217 395 46.000 2.830 2.280 10/06/16 6.4 8.05 208 404 39.600 2.520 2.190 Maximum 17.6 8.32 0.80 217 404 46.000 2.830 2.280 Minimum 6.4 6.53 0.80 54 53 0.731 0.039 < 0.010 Average 12.5 7.40 0.80 116 190 17.017 1.020 0.834 #Tests 6 6 0 0 1 6 l 6 6 6 6 0 0 Site: SW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredericksburg Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 100'below confluence with reclaimed water 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 05/03/16 0.117 < 0.020 < 0.010 < 0.010 0.117 06/15/16 0.191 < 0.020 < 0.010 < 0.010 0.191 07/06/16 0.107 < 0.020 < 0.010 0.053 0.160 08/02/16 1.060 0.580 0.320 1.300 2.680 09/07/16 7.810 5.540 0.752 2.140 10.700 10/06/16 10.500 9.470 0.751 2.860 14.100 Maximum 10.500 9.470 0.752 2.860 14.100 Minimum 0.107 < 0.020 < 0.010 < 0.010 0.117 Average 3.298 2.608 0.309 1.062 4.658 #Tests 6 6 6 6 6 0 0 0 0 0 0 0 0 Site: SW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredericksburg Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 100'below confluence with reclaimed water 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments-----> <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 05/03/16 10.85 1.50 06/15/16 9.25 1.31 07/06/16 8.64 1.92 08/02/16 9.38 4.28 09/07/16 7.52 11.90 10/06/16 10.00 13.40 Maximum 10.85 13.40 Minimum 7.52 1.31 Average 9.27 5.72 #Tests 0 0 0 0 0 0 0 0 0 0 6 6 0 Site: SW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredericksburg Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 100'below confluence From 1981 with reclaimed water To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mq/L mg/L mg/L 01 16.3 7.72 106 179 16.3 0.63 0.61 02 13.2 7.72 101 153 14.4 0.73 0.53 03 12.7 7.80 97 155 13.8 0.60 0.53 04 12.6 7.65 108 178 17.1 0.89 0.77 05 11.8 7.61 85 115 10.1 0.48 0.47 06 12.5 7.72 106 171 15.6 0.79 0.72 07 13.5 7.71 98 152 11.6 0.57 0.51 08 13.4 7.86 144 252 25.4 1.50 1.37 09 13.6 7.68 103 174 14.7 0.94 0.85 10 10.3 7.37 77 105 7.3 0.31 0.28 11 13.0 8.28 114 182 15.8 0.76 0.71 12 12.7 7.16 73 91 4.5 0.20 0.17 13 15.8 7.56 86 133 8.6 0.44 0.42 14 16.1 7.89 105 185 13.7 0.71 0.67 15 14.0 7.39 78 117 5.8 0.28 0.25 16 12.5 7.40 0.8 116 190 17.0 1.02 0.83 Maximum 16.3 8.28 0.8 144 252 25.4 1.50 1.37 Minimum 10.3 7.16 0.8 73 91 4.5 0.20 0.17 Average 13.4 7.66 0.8 100 158 13.2 0.68 0.60 #Tests 16 16 0 0 1 16 16 16 16 16 0 0 Site: SW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Fredericksburg Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 100'below confluence From: 1981 with reclaimed water To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 01 3.79 4.40 0.16 0.40 4.35 02 1.99 1.97 0.20 0.74 2.93 03 3.21 2.73 0.16 0.48 3.85 04 3.68 3.56 0.18 0.77 4.63 05 1.88 1.53 0.14 0.36 2.38 06 5.08 4.39 0.14 0.50 5.72 07 2.91 2.33 0.11 0.20 3.21 08 5.76 4.53 0.46 1.33 7.55 09 3.10 2.70 0.30 0.62 4.02 10 0.87 0.64 0.09 0.61 1.57 11 2.89 1.97 0.61 1.24 4.74 12 0.61 0.23 0.10 0.59 1.30 13 1.75 1.23 0.14 0.48 2.36 14 2.43 2.45 0.16 1.11 3.68 15 0.85 0.51 0.12 0.61 1.57 16 3.30 2.61 0.31 1.06 4.66 Maximum 5.76 4.53 0.61 1.33 7.55 Minimum 0.61 0.23 0.09 0.20 1.30 Average 2.75 2.36 0.21 0.69 3.66 #Tests 16 16 16 16 16 0 0 0 0 0 0 0 0 Site: SW-13 SOUTH TAHOE PUBLIC UTILITY DISTRICT • Stream: Fredericksburg Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA 100'below confluence From: 1981 with reclaimed water To: 2016 Coliforms Fecal/ Fecal <- --Blue Green Algae - - > Single Hard- Total E.coli Strep < Colonies > < Filaments-----> <---Filamaments---> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # um #cells mg/L mg/L mg/L 01 8.56 6.10 02 8.50 5.69 03 7.93 5.42 04 7.81 5.66 05 8.36 4.03 06 8.07 5.40 07 8.10 4.44 08 8.20 8.04 09 8.62 5.09 10 7.45 3.31 11 8.88 5.37 12 8.33 2.68 13 6.94 4.03 14 7.87 5.26 15 8.93 3.64 16 9.27 5.72 Maximum 0 0 0 0 0 0 0 9.27 8.04 Minimum 0 0 0 0 0 0 0 6.94 2.68 Average 8.24 4.99 #Tests 0 0 0 0 0 0 0 0 0 0 16 16 0 Site: SW-13 Nitrate-Nitrogen Total Phosphorus 5.0 5.0 4.0 4.0 3.0 3.0 _ J J - E - E - 2.0 2.0 • 1.0 -. 46. 1.0 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 �—Nitrate Linear(Nitrate) t Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 50 500 40 400 30 — 300 J J 20 A E 200 A Ilk 10 = 100 0 ---- 0 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 +Chlorides Linear(Chlorides) Linear(TDS) Site: SW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Celio Tailwater ALPINE COUNTY SURFACEWATER QUALITY DATA @ Brooke Diversion 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 05/03/16 12.2 7.07 228 356 24.4 0.257 0.213 06/15/16 Dry 07/06/16 24.4 7.13 260 486 60.8 2.570 2.620 08/02/16 19.7 7.85 1.16 272 387 23.1 0.820 0.730 09/07/16 14.6 6.87 306 501 66.3 3.670 2.940 10/06/16 Dry Maximum 24.4 7.85 1.16 306 501 66.3 3.670 2.940 Minimum 12.2 6.87 1.16 228 356 23.1 0.257 0.213 Average 17.7 7.23 1.16 267 433 43.7 1.829 1.626 #Tests 4 4 0 0 1 4 4 4 4 4 0 0 Site: SW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Cello Tailwater ALPINE COUNTY SURFACEWATER QUALITY DATA @ Brooke Diversion 2016 , Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 05/03/16 0.217 < 0.020 < 0.020 < 0.020 0.22 06/15/16 07/06/16 9.620 7.350 2.160 4.820 16.60 08/02/16 0.651 0.039 < 0.010 0.132 0.78 09/07/16 6.500 4.580 0.598 4.800 11.90 10/06/16 Maximum 9.620 7.350 2.160 4.820 16.60 Minimum 0.217 < 0.020 < 0.010 < 0.020 0.22 Average 4.247 2.997 0.697 2.443 7.38 #Tests 4 4 4 4 4 0 0 0 0 0 0 0 0 Site: SW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Cello Tailwater ALPINE COUNTY SURFACEWATER QUALITY DATA @ Brooke Diversion 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E. coli Strep < Colonies > < Filaments '> <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 05/03/16 9.91 11.20 06/15/16 07/06/16 6.41 15.90 08/02/16 9.98 12.20 09/07/16 6.90 16.80 10/06/16 Maximum 9.98 16.80 Minimum 6.41 11.20 Average 8.30 14.03 #Tests 0 0 0 0 0 0 0 0 0 0 4 4 0 Site: SW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Celio Tailwater ALPINE COUNTY SURFACEWATER QUALITY DATA @ Brooke Diversion From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 01 15.7 7.73 245 398 44.0 1.40 1.35 02 14.1 7.69 220 325 36.9 1.27 1.13 03 13.5 7.45 255 395 44.6 1.35 1.24 04 13.2 7.49 228 373 46.2 1.80 1.76 05 12.1 7.42 173 239 27.3 1.23 1.20 06 13.8 7.47 207 311 33.7 1.54 1.49 07 13.7 7.65 268 413 46.7 2.08 1.95 08 13.7 7.60 221 348 39.9 1.83 1.70 09 12.8 7.50 173 250 21.1 0.95 0.64 10 10.5 7.71 116 160 15.2 0.54 0.49 11 14.4 7.88 189 204 33.0 1.09 0.89 12 13.4 7.23 189 314 27.3 1.27 1.09 13 17.8 7.48 313 494 52.8 1.89 1.66 14 17.2 7.56 291 520 54.0 2.76 2.20 15 17.3 7.47 296 478 46.2 '2.22 2.04 16 17.7 7.23 1.2 267 433 43.7 1.83 1.63 Maximum 17.8 7.88 1.2 313 520 54.0 2.76 2.20 Minimum 10.5 7.23 1.2 116 160 15.2 0.54 0.49 Average 14.4 7.54 1.2 228 353 38.3 1.57 1.40 #Tests 16 16 0 0 1 16 16 16 16 16 0 0 Site: SW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Celio Tailwater ALPINE COUNTY SURFACEWATER QUALITY DATA @ Brooke Diversion From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 01 4.43 2.96 0.29 1.39 6.11 02 2.98 1.94 0.18 1.87 5.03 03 2.72 2.14 0.24 2.96 5.92 04 5.15 4.77 0.27 3.41 8.83 05 3.61 2.98 0.15 1.77 5.53 06 4.98 4.02 0.29 3.12 8.39 07 6.47 4.77 0.25 2.31 9.02 08 3.44 2.59 0.32 3.42 6.15 09 • 1.39 0.05 0.04 1.00 2.43 10 0.48 0.02 0.07 1.10 1.64 11. 1.94 0.67 0.28 2.33 4.55 12 5.80 4.15 0.17 1.04 7.01 13 3.01 3.59 0.36 3.09 5.34 14 6.01 5.47 0.71 4.09 10.81 15 4.84 3.40 0.91 4.40 10.11 16 4.25 3.00 0.70 2.44 7.38 Maximum 6.47 5.47 0.91 4.40 10.81 Minimum 0.48 0.02 0.04 1.00 1.64 Average 3.84 2.91 0.33 2.48 6.51 #Tests 16 16 16 16 16 0 0 0 0 0 0 0 0 Site: SW-15 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Cello Tailwater ALPINE COUNTY SURFACEWATER QUALITY DATA @ Brooke Diversion From: 1981 To: 2016 Coliforms Fecal/ Fecal < Blue Green Algae- > Single Hard- Total E.coli Strep < Colonies > < Filaments-----> <---Filamaments---> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # um #cells mg/L mg/L mg/L 01 7.99 14.47 02 8.34 10.85 03 5.36 14.46 04 6.54 11.95 05 7.03 8.55 06 6.24 10.43 07 6.32 12.81 08 6.76 11.13 09 7.80 6.66 10 7.14 6.31 11 7.17 8.81 12 8.30 7.58 13 8.04 17.43 14 6.04 15.86 15 5.93 15.34 16 8.30 14.03 Maximum 0 0 0 0 0 0 0 8.34 17.43 Minimum 0 0 0 0 0 0 0 5.36 6.31 Average 7.08 11.67 #Tests 0 0 0 0 0 0 0 0 0 0 16 16 0 Site: SW-15 Nitrate-Nitrogen Total Phosphorus 10.0 _ 10.0 _ 9.0 = - 9.0 = • 8.0 = 8.0 = 7.0 = 7.0 - 6.0 ` 6.0 = ..J 6 5.0 = E 5.0 4.0 : 4.0 = 3.0 = — 3.0 2.0 : 2.0 -- 1.0 = 1.0 = 01 • 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 t Nitrate Linear(Nitrate) +Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 100 . 500 - 90 80 = 400 - 70 60 = 300 - 5 50 - E Ah. 40 +►- 200 30 20 = 100 - 10 = p 0 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 —•—Chlorides Linear(Chlorides) t TDS Linear(TDS) Site: SW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Drain Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA @ Fairview Lane 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Date C pH mg/L NTU mg/L mg/L umhos mg/L mg/L mg/L mg/L mg/L 05/03/16 19.9 7.07 207 258 15.9 0.124 0.034 06/15/16 16.0 7.83 160 211 14.3 0.134 0.025 07/06/16 22.3 6.85 193 287 23.1 0.084 0.023 08/02/16 20.9 7.18 3.32 156 296 27.6 0.089 0.031 09/07/16 20.3 7.93 202 308 29.9 0.097 0.023 10/06/16 6.5 6.60 178 276 24.0 0.031 0.011 Maximum 22.3 7.93 3.32 207 308 29.9 0.134 0.034 Minimum 6.5 6.60 3.32 156 211 14.3 0.031 0.011 Average 17.7 7.24 3.32 183 273 22.5 0.093 0.025 #Tests 6 6 0 0 1 6 6 6 6 6 0 0 Site: SW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Drain Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA @ Fairview Lane 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Date mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L % 05/03/16 1.220 < 0.020 < 0.010 0.032 1.250 06/15/16 1.100 0.022 < 0.010 0.084 1.180 07/06/16 0.420 < 0.020 < 0.010 0.086 0.507 08/02/16 0.458 0.040 < 0.010 < 0.010 0.458 09/07/16 0.668 < 0.020 0.013 0.060 0.741 10/06/16 0.240 < 0.020 < 0.010 0.022 0.262 Maximum 1.220 0.040 0.013 0.086 1.250 Minimum 0.240 < 0.020 < 0.010 < 0.010 0.262 Average 0.684 0.024 0.011 0.049 0.733 #Tests 6 6 6 6 6 0 0 0 0 0 0 0 0 Site: SW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Drain Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA @ Fairview Lane 2016 Coliforms Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Date MPN MPN MPN # cells # cells # um #cells mg/L mg/L mg/L 05/03/16 9.16 4.78 06/15/16 7.67 4.44 07/06/16 9.43 6.17 08/02/16 10.68 7.84 09/07/16 8.22 11.20 10/06/16 9.46 8.42 Maximum, 10.68 11.20 Minimum 7.67 4.44 Average 9.10 7.14 #Tests 0 0 0 0 0 0 0 0 0 0 6 6 0 Site: SW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Drain Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA @ Fairview Lane From 1981 To: 2016 Temp Alkalinity Turbidity SS TDS EC Chloride Total P PO4-P Boron K Year C pH mg/L NTU mg/L mg/L umhos mq/L mg/L mg/L mg/L mg/L 01 02 14.5 7.53 177 263 21.5 0.06 0.02 03 15.6 7.67 159 233 19.5 0.10 0.03 04 15.1 7.50 154 226 18.9 0.19 0.02 05 14.8 7.30 158 206 21.7 0.09 0.03 06 15.3 7.37 154 206 18.9 0.12 0.06 07 15.7 7.59 160 227 17.8 0.07 0.02 08 15.6 7.70 165 244 20.3 0.08 0.03 09 17.1 7.64 193 301 23.5 0.60 0.33 10 14.8 7.43 192 282 25.7 0.15 0.03 11 15.6 7.70 161 228 20.7 0.22 0.10 12 19.6 7.38 152 231 15.5 0.11 0.03 13 18.0 7.31 181 253 19.9 0.10 0.03 14 19.0 7.60 196 266 20.7 0.06 0.02 15 17.3 7.31 184 277 21.5 0.07 0.02 16 17.7 7.24 3.3 183 273 22.5 0.09 0.02 Maximum 19.6 7.70 3.3 196 301 25.7 0.60 0.33 Minimum 14.5 7.24 3.3 152 206 15.5 0.06 0.02 Average 16.4 7.49 3.3 171 248 20.6 0.14 0.05 #Tests 15 15 0 0 1 15 15 15 15 15 0 0 Site: SW-16 SOUTH TAHOE PUBLIC UTILITY DISTRICT Stream: Drain Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA @ Fairview Lane From: 1981 To: 2016 Oil& TKN NH3-N NO2-N NO3-N Total N COD BOD Grease Ca Mg Na SAR Na Year mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L mg/L 01 02 0.46 0.05 < 0.01 0.07 0.55 03 0.58 0.07 0.02 0.10 0.74 04 0.88 0.07 0.02 0.10 1.00 05 1.13 0.04 0.02 0.17 1.31 06 0.98 0.35 0.02 0.34 1.35 07 0.47 0.03 < '0.01 0.08 0.57 08 0.74 0.06 0.03 0.16 0.93 . 09 2.36 1.44 0.13 1.18 3.67 10 0.79 0.03 < 0.01 0.15 0.95 11 1.20 0.11 0.06 0.40 1.66 12 0.77 0.24 < 0.01 0.14 0.93 13 0.74 0.07 0.03 0.15 0.91 14 0.54 0.04 0.01 0.13 0.67 15 0.38 0.02 < 0.01 0.01 0.38 16 0.68 0.02 0.01 0.05 0.73 Maximum 2.36 1.44 0.13 1.18 3.67 Minimum 0.38 0.02 < 0.01 0.01 0.38 Average 0.85 0.18 0.03 0.22 1.09 #Tests 15 15 15 15 15 0 0 0 0 0 0 0 0 Site: SW-16 SOUTH TAHOE PUBLIC•UTILITY DISTRICT Stream: Drain Ditch ALPINE COUNTY SURFACEWATER QUALITY DATA @ Fairview Lane From: 1981 To: 2016 Coliforms Fecal/ Fecal < Blue Green Algae > Single Hard- Total E.coli Strep < Colonies > < Filaments > <---Filamaments---> Cells D.O. SO4 ness Year MPN MPN MPN # cells # cells # urn #cells mg/L mg/L mg/L 01 • 02 6.97 8.04 03 7.03 6.75 04 7.73 6.35 05 8.79 6.95 06 8.90 6.05 07 .8.27 6.36 08 7.61 7.85 09 7.80 7.66 10 6.34 7.05 11 8.26 5.21 12 8.88 6.58 13 8.60 7.77 14 8.46 7.41 15 7.12 5.66 16 9.10 7.14 Maximum 0 0 0 0 0 0 0 9.10 8.04 Minimum 0 0 0 0 0 0 0 6.34 5.21 Average 7.99 6.86 #Tests 0 0 0 0 0 0 0 0 0 0 (15 15 0 Site: SW-16 Nitrate-Nitrogen Total Phosphorus 5.0 1.0 0.9 : 4.0 1 0.8 0.7 : 3.0 0.6 J J rn : o) 0.5 E - E 2.0 0.4 0.3 1.0 0.2 _ r 0.1 : 0.0 0.0 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 t Nitrate Linear(Nitrate) t Total Phosphorus Linear(Total Phosphorus) Chlorides Total Dissolved Solids 50 250 • 40 200 - 30 150 _ J J 6 E - E - 20 r . - 100 - 10 -- - --- 50 0 0 - 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 �-Chlorides Linear(Chlorides) tTDS Linear(TDS) TRIHALOMETHANES (THM) MTBE (Methyl tent-Butyl Ether) MONITORING )=2 ENVIROINMENTALAGRICULTURAL Analytical Chemists July 6, 2016 • South Tahoe Public Utility District Lab ID : SP 1607357 1275 Meadow Crest Drive Customer : 2-11369 South Lake Tahoe, CA 96150 Laboratory Report Introduction: This report package contains total of 5 pages divided into 3 sections: Case Narrative (1 pages) : An overview of the work performed at FGL. Sample Results (2 pages) : Results for each sample submitted. Quality Control (2 pages) : Supporting Quality Control(QC)results. Case Narrative This Case Narrative pertains to the following samples: Sample Description Date Date FGL Lab ID# Matrix Sampled Received Travel Blank 06/28/2016 06/29/2016 SP 1607357-000 LBW DD-01;Diamond Ditich @ Start 06/28/2016 06/29/2016 SP 1607357-001 , WW Sampling and Receipt Information: All samples were received in acceptable condition and within temperature requirements,unless noted on the Condition Upon Receipt(CUR) form. All samples arrived at 6 °C. All samples were prepared and analyzed within the method specified hold time. All samples were checked for pH if acid or base preservation is required(except for VOAs). For details of sample receipt information,please see the attached Chain of Custody and Condition Upon Receipt Form. Quality Control: All samples were prepared and analyzed according to the following tables: Organic QC 5030B 07/01/2016:207734 All preparation quality controls are within established criteria 8260B 07/01/2016:209516 All analysis quality controls are within established criteria Certification:: I certify that this data package is in compliance with ELAP standards,both technically and for completeness, except for any conditions listed above. Release of the data contained in this data package is authorized by the Laboratory Director or his designee, as verified by the following electronic signature. KD:DMB Dig ally signed by David Tea,BA,M B.A. Approved By David Terz,B.A.,M.B.A. TiOe:QA Dircetnr Date:2016-07-07 Page 1 of 5 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 A, -_---:_..__ ENVIRONMENTALAGRICULTURAL Analytical Chemists July 6,2016 Lab ID : SP 1607357-000 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : June 28, 2016-00:00 South Lake Tahoe, CA 96150 Sampled By : T. Powers Received On : June 29, 2016-11:40 Matrix : Lab. Blank Water Description : Travel Blank Project : HPR VOC Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID • EPA 8260v0A:1'3 4-Bromofluorobenzene$ 99.0 79-119 % 5030B 07/01/16:207734 8260B 07/01/16:209516 Dibromofluoromethane$ 102 84-136 % 5030B 07/01/16:207734 8260B 07/01/16:209516 1,2-Dichloroethane-d4$ 92.0 58-166 % 5030B 07/01/16:207734 8260E 07/01/16:209516 Toluene-d8$ 99.7 88-111 % 5030B 07/01/16:207734 8260B 07/01/16:209516 Benzene ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Bromodichloromethane ND 1 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Bromoform ND 1 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 tert-Butanol ND - 5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Chloroform ND 1 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Dibromochloromethane ND 1 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Di-isopropyl ether(DIPE) ND 0.5 ug/L 5030B 07/01/16:207734' 8260E 07/01/16:209516 Ethyl Benzene ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Ethyl tert-butyl ether ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 (ETRE) 5 Methyl tert-butyl ether ND 0.2 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 (MTBE) tert-Amyl methyl ether ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 (TAME) Toluene ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Xylenes ND -- ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Total Trihalomethanes ND -- ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Xylenes m,p ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Xylenes o ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 ND=Non-Detected.PQL=Practical Quantitation Limit.Containers:(VOA)VOA Preservatives:HC1 pH<2$Surrogate.*PQL adjusted for dilution. Page 2 of 5 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 ENVIRONMENTAL _ AGRICULTURAL Analytical Chemists July 6, 2016 Lab ID : SP 1607357-001 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : June 28, 2016-11:07 South Lake Tahoe, CA 96150 Sampled By : T. Powers Received On. : June 29, 2016-11:40 Matrix : Waste Water Description : DD-01; Diamond Ditich @ Start Project : HPR VOC Sample Result- Organic . Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID I EPA 8260v0A:r3 4-Bromofluorobenzene$ 101 79-119 % 5030B 07/01/16:207734 8260B 07/01/16:209516 IDibromofluoromethan0 105 84-136 % 5030B 07/01/16:207734 8260B 07/01/16:209516 1,2-Dich1oroethane-d4$ 89.5 58-166 % 5030B 07/01/16:207734 8260B 07/01/16:209516 Toluene-d8# 97.7 88-111 % 5030B 07/01/16:207734 8260E 07/01/16:209516 Benzene ND 0.5 ug/L 5030E 07/01/16:207734 8260E 07/01/16:209516 Bromodichloromethane ND 1 ug/L 5030E 07/01/16:207734 8260B 07/01/16:209516 Bromoform ND 1 ug/L 5030B 07/01/16:207734 8260E 07/01/16:209516 tert-Butanol ND 5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Chloroform ND 1 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Dibromochloromethane ND 1 ug/L 5030E 07/01/16:207734 8260B 07/01/16:209516 Di-isopropyl ether(DIPE) ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Ethyl Benzene ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Ethyl tert-butyl ether ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 (ETRE) 5 Methyl tert-butyl ether ND 0.2 ug/L 5030B 07/01/16:207734 8260E 07/01/16:209516 (MTBE) tert-Amyl methyl ether ND 0.5 ug/L 5030E 07/01/16:207734 8260B 07/01/16:209516 (TAME) Toluene ND 0.5 ug/L 5030E 07/01/16:207734 8260E 07/01/16:209516 ' Xylenes ND -- ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Total Trihalomethanes ND -- ug/L 5030E 07/01/16:207734 8260B 07/01/16:209516 Xylenes m,p ND 0.5 ug/L 5030B 07/01/16:207734 8260B 07/01/16:209516 Xylenes o ND 0.5 ug/L 5030B 07/01/16:207734 8260E 07/01/16:209516 ND=Non-Detected.PQL=Practical Quantitation Limit.Containers:(VOA)VOA Preservatives:HCl pH<21Surrogate.*PQL adjusted for dilution. . Page 3 of 5 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA FLAP Certification No.1573 CA FLAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 ENVIRONMENTAL -M.;- AGRICULTURAL Analytical Chemists July 6, 2016 Lab ID : SP 1607357 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Organic 1,2-Dichloroethane-d4 5030B 07/01/16:207734VRG Blank ug/L 25.00 87.4% 58-166 LCS ug/L 25.00 88.7% 58-166 MS ug/L 25.00 88.7% 58-166 (SP 1607357-001) MSD ug/L 25.00 87.3% 58-166 MSRPD ug/L 25.00 1.6% 20.0 4-Bromofluorobenzene 5030B 07/01/16:207734VRG Blank ug/L 25.00 96.9% 79-119 LCS ug/L 25.00 99.1% 79-119 MS ug/L 25.00 98.2% 79-119 (SP 1607357-001) MSD ug/L 25.00 95.7% 79-119 MSRPD ug/L 25.00 2.6% <20.0 Benzene 5030B 07/01/16:207734VRG Blank ug/L ND <0.5 LCS ug/L 25.00 97.7% 60-134 MS ug/L 25.00 94.0% 47-169 (SP 1607357-001) MSD ug/L 25.00 91.2% 47-169 MSRPD ug/L 25.00 3.1% <24 Bromodichloromethane 5030B 07/01/16:207734VRG Blank ug/L ND <0.5 Bromoform 5030B 07/01/16:207734VRG Blank ug/L ND <0.5 Chloroform 5030B 07/01/16:207734VRG Blank ug/L ND <1 Dibromochloromethane 5030B 07/01/16:207734VRG Blank ug/L ND <1 Dibromofluromethane 5030B 07/01/16:207734VRG Blank ug/L 25.00 96.7% 84-136 LCS ug/L 25.00 95.1% 84-136 MS ug/L 25.00 97.5% 86-127 (SP 1607357-001) MSD ug/L 25.00 96.0% 86-127 MSRPD ug/L 25.00 1.5% 20.0 Ethyl tert-Butyl Ether 5030B 07/01/16:207734VRG Blank ug/L ND <2 Ethylbenzene 5030B 07/01/16:207734VRG Blank ug/L ND <0.5 Isopropyl Ether 5030B 07/01/16:207734VRG Blank ug/L ND <5 Methyl tert-Butyl Ether(MTBE) 5030B 07/01/16:207734VRG Blank ug/L ND <2 TAME 5030B 07/01/16:207734VRG Blank ug/L ND <5 • tert-Butanol 5030B 07/01/16:207734VRG Blank ug/L ND <5 Toluene 5030B 07/01/16:207734VRG Blank ug/L ND <0.5 LCS ug/L 25.00 99.9% 56-131 MS ug/L 25.00 98.6% 44-164 (SP 1607357-001) MSD ug/L 25.00 96.6% 44-164 MSRPD ug/L 25.00 2.0% <30 Toluene-d8 - 5030B 07/01/16:207734VRG Blank ug/L 25.00 99.0% 88-111 LCS ug/L 25.00 99.9% 88-111 MS ug/L 25.00 98.6% 88-111 (SP 1607357-001) MSD ug/L 25.00 100% 88-111 MSRPD ug/L 25.00 1.7% 20.0 Xylenes m,p 5030B 07/01/16:207734VRG Blank ug/L ND <2 Xylenes o 5030B 07/01/16:207734VRG Blank ug/L ND <2 1,2-Dichloroethane-d4 8260B 07/01/16:209516VRG CCV ug/L 25.00 87.4% 70-130 , 4-Bromofluorobenzene(BFB) 8260B 07/01/16:209516VRG CCV ug/L 25.00 100% 70-130 Benzene 8260B 07/01/16:209516VRG CCV ug/L 25.00 95.0% 70-130 Bromodichloromethane 8260B 07/01/16:209516VRG CCV ug/L 25.00 87.2% 70-130 Bromoform 8260B 07/01/16:209516VRG CCV ug/L 25.00 70.7% 70-130 Chloroform 8260B 07/01/16:209516VRG CCV ug/L 25.00 89.3% 80-120 Dibromochloromethane 8260B 07/01/16:209516VRG CCV ug/L 25.00 89.1% 70-130 Dibromofluromethane 8260B 07/01/16:209516VRG CCV ug/L 25.00 96.1% 70-130 Ethyl tert-Butyl Ether 8260B 07/01/16:209516VRG CCV ug/L 25.00 103% 50-150 Ethylbenzene 8260B 07/01/16:209516VRG CCV ug/L 25.00 110% 80-120 Isopropyl Ether 8260B 07/01/16:209516VRG CCV ug/L 25.00 98.5% 50-150 Methyl tert-Butyl Ether 8260B 07/01/16:209516VRG CCV ug/L 25.00 108% 70-130 TAME 8260B 07/01/16:209516VRG CCV ug/L 25.00 108% 50-150 . Page 4 of 5 Corporate Offices&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory Office&Laboratory 853 Corporation Street 2500 Stagecoach Road 563 E.Lindo Avenue 3442 Empresa Drive,Suite D 9415 W.Goshen Avenue Santa Paula,CA 93060 Stockton,CA 95215 Chico,CA 95926 San Luis Obispo,CA 93401 Visalia,CA 93291 TEL:(805)392-2000 TEL:(209)942-0182 TEL:(530)343-5818 TEL:(805)783-2940 TEL:(559)734-9473 Env FAX:(805)525-4172/Ag FAX:(805)392-2063 FAX:(209)942-0423 FAX:(530)343-3807 FAX:(805)783-2912 FAX:(559)734-8435 CA ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 • July 6, 2016 Lab ID : SP 1607357 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note • Organic tert-Butanol 8260B 07/01/16:209516VRG CCV ug/L 125.0 - 99.5% 50-150 Toluene 8260B 07/01/16:209516VRG CCV ug/L 25.00 98.6% 80-120 Toluene-d8 8260B 07/01/16:209516VRG CCV ug/L 25.00 100% 70-130 Xylene m,p 8260B 07/01/16:209516VRG CCV ug/L 50.00 116% 70-130 Xylenes o 8260B 07/01/16:209516VRG CCV ug/L 25.00 119% 70-130 Definition CCV :Continuing Calibration Verification-Analyzed to verify the instrument calibration is within criteria. Blank :Method Blank-Prepared to verify that the preparation process is not contributing contamination to the samples. LCS :Laboratory Control Standard/Sample-Prepared to verify that the preparation process is not affecting analyte recovery. MS :Matrix Spikes-A random sample is spiked with a known amount of analyte.The recoveries are an indication of how that sample matrix affects analyte recovery. MSD :Matrix Spike Duplicate of MS/MSD pair-A random sample duplicate is'spiked with a known amount of analyted.The recoveries are an indication of how that sample matrix affects analyte recovery. MSRPD :MS/MSD Relative Percent Difference(RPD)-The MS relative percent difference is an indication of precision for the preparation and analysis. ND :Non-detect-Result was below the DQO listed for the analyte. DQO :Data Quality Objective-This is the criteria against which the quality control data is compared. Page 5 of 5 SOUTH TAHOE PUBLIC UTILITY DISTRICT IIfl CHAIN OF CUSTODY South Tahoe Public Utility District Lab Sent to: on?,3'3 N'; ,,,d .' :'s Turnaround Time rr �ct :teti' roast .. Phone: Meadow Crest Drive r 6-1-- :ec2..60:it.„fra;ai,q. a s Y !//of # StandardSouth Lake Tahoe,CA 96150 @.) SamplerY Phone:(530)-543.6231 FAX: 530-541-4296 ./ r 24 Hr 1- 1 48 Hr ?iJ # .x z.. m s^':i ,;xp'i`xu ";C''x" a c i yia 'a Other .a :t .. ,"--..,..',x ,? ' ,,ic a �.aF' r,z, T. �� rS Vis% y ^':x s"°fy:. "'�.^: gj�,�"Y s's�. zs:� �:� sat'in i r � � o : • ,'1' 4's.:,>." Off: '?.: SY.6,". ' :::::-'.-.'_.f,it: rx� "rty,'-'14.':44 s?..,: +' Y:,a;";'�..:�'r",�%;r.::'�., • - 'xs�'s;4;g:.'�^m'rkx��,����.wn 3: : ,. g � C/� ae :� ::t": d: `Y ) —0 ' ✓it, t _• �!.I / 4-—ill l .. - '" V __4-075!655 r;r f I&A k_ 64 gfo gr_] — / / 1 • Comments: Relinquished b• Received by: o Report MTBE to 0.5 pg/L Note any detection of MTBE a 0.2 pg/L o Analyze Travel and Field Blanks only if VOCs detected in samples. Signature %'.' Signature o Use Calif State Write-On form to report results of Potable Water Wells Print n A_ Print Company S. , _ •-P bl c li a Di, ., Company Please Return all STPUD ice chests&Blue Ice. Date: Q 4 of e---/6 Time /41431 Date: Time :.;vim.,,, � � ;:� ;... - �. , s- ...1.m>-.., s' s w Relinquished by: Received,;w Received Intact Signature Signature �t' ���'/ Received cold Print N)* Prim .I` V Custody seals Company Company / (( 1 Date: Time Date: Ii I lime (l/}�V Correct container C/, 't I' .' LLablWrrns Chain of r\a 00k.(W u LI L �1� /_r(...._ I Page of FGL Environmental Doc ID:2D0900157 SOP 17.DOC Revision Date: 10/09/14 Page: 1 of 1 Condition Upon Receipt (Attach to COC) Sample Receipt at SP: 1.Number of ice chests/packages received: 1 2. Shipper tracking numbers D10010964465772 3.Were samples received in a chilled condition? Temps: 6 / / / 4.Surface water(SWTR)bact samples:A sample that has a temperature upon receipt of>10C,whether iced or not, should be flagged unless the time since sample collection has been less than two hours. 5.Do the number of bottles received agree with the Yes No N/A COC? 6.Verify sample date,time, sampler Yes No N/A 7.Were the samples received intact?(i.e. no broken Yes No bottles, leaks, etc.) 8.Were sample custody seals intact? Yes No N/A Sample Verification, Labeling and Distribution: 1.Were all requested analyses understood and Yes No acceptable? 2.Did bottle labels correspond with the client's ID's? Yes No 3.Were all bottles requiring sample preservation Yes No N/A FGL properly preserved? [Exception:Oil&Grease,VOA and CrVI verified in lab] 4.VOAs checked for Headspace? Yes No N/A 5.Were all analyses within holding times at time of Yes No receipt? 6.Have rush or project due dates been checked and Yes No N/A accepted? Include a copy of the COC for lab delivery. (Bacti. Inorganics and Radio) Sample Receipt, Login and Verification completed b : Reviewed and DiOitellysignedbah,awnPeck p pp y Shawn Peck Date Sample Receiving Approved By Date:06/29/2016-12:57:21 Discrepency Documentation: Any items above which are"No"or do not meet specifications(i.e.temps)must be resolved. 1. Person Contacted: Phone Number: Initiated By: Date: Problem: Resolution: 2. Person Contacted: Phone Number: Initiated By: Date: Problem: Resolution: (2011369) South Tahoe Public Utility District SP 1607357 SRP-06/29/2016-12:57:21 MTBE Results Lower Sample Reporting Sample Site Date ID# Parameter Result Units Limit Method WWTP Final Effluent 02/25/2016 AG49970 MTBE ND ug/L 0.2 EPA8260 05/25/2016 AG51195 MTBE ND ug/L 0.2 EPA8260 08/31/2016 AG52659 MTBE ND ug/L 0.2 EPA8260 11/01/2016 AG53547 MTBE ND ug/L 0.2 EPA8260 HPR Effluent 06/28/2016 AG51654 MTBE ND ug/L 0.2 EPA8260 ND =Not Detected at or above Lower Reporting Limit ug/L =micrograms per liter or parts per billion TEST METHODS Laboratory Analyses The Regional Board allows the District laboratory to use an alternate test method for Total Nitrogen and Total Kjeldahl Nitrogen (TKN). The District uses test method 1-4650-03, developed by United States Geological Service (USGS), for Total Nitrogen. TKN is calculated by the subtraction of Nitrate-N and Nitrite-N from the Total Nitrogen result.The permit specifies that a performance evaluation (PE)test be done annually and the result is within an acceptable range. The report for this year's PE sample follows. Ci) E R A A Waters Company Terry Powers South Tahoe Public Utilities District 1275 Meadow Crest Dr. South Lake Tahoe, CA 96150 USA WP-254 Final Report TM WatRTM Pollution Proficiency Testing WatRTM Pollution Study Open Date: 03/07/16 Close Date: 04/21/16 Report Issued Date: 04/25/16 Study#:WP-254 ØERA A Waters Company April 25, 2016 Terry Powers South Tahoe Public Utilities District 1275 Meadow Crest Dr. South Lake Tahoe, CA 96150 Enclosed is your final report for ERA's WP-254 WatRTM Pollution Proficiency Testing (PT)study. Your final report includes an evaluation of all results submitted by your laboratory to ERA. Data Evaluation Protocols:All analytes in ERA's WP-254 WatRTM Pollution Proficiency Testing study have been evaluated using the following tiered approach. If the analyte is listed in the current TNI Fields of Proficiency Testing (FoPT)tables,the evaluation was completed by comparing the reported result to the acceptance limits generated using the criteria contained in the current TNI FoPT tables. If the analyte is not included in the TNI FoPT tables,the reported result has been evaluated using the procedures outlined in ERA's Standard Operating Procedure for the Generation of Performance Acceptance Limits(SOP 0260). Corrective Action Help:As part of your accreditation(s),you may be required to identify the root cause of any"Not Acceptable" results, implement the necessary corrective actions, and then satisfy your PT requirements by participating in a Supplemental (QuiKTM Response)or future ERA PT study. ERA's technical staff is available to help your laboratory resolve any technical issues that may be impairing your PT performance and possibly affecting your routine data quality. Our laboratory and technical staff have many years of collective experience in performing the full range of environmental analyses. As part of our technical support, ERA offers QC samples that can be useful in helping you work through your technical issues. At the request of the TNI Accreditation Council, we have included a Laboratory Exception Report that includes a list of all analytes reported with less than qualifiers when the assigned value was greater than "0." In addition, because we have received many requests from laboratories, this report also includes a list of all analytes with "Not Acceptable" evaluations. Some states have elected not to convert to the 2009 TNI Standards at this time. If you have released your results to a state that has retained the 2003 NELAC Evaluation Criteria, your final report will include a section that evaluates the results according to the 2003 Standard in addition to the 2009 TNI Standards. Thank you for your participation in ERA's WP-254 WatRTM Pollution Proficiency Testing study. If you have any questions, please contact our Proficiency Testing Department at 1-800-372-0122. Sincerely, Patrick Larson Quality Officer attachments 16341 Table Mountain Pkwy•Golden,CO 80403•800.372.0122•303.431.8454•fax 303.421.0159•www.eraqc.com Study#:WP-254 0 ERA A Waters Company WP-254 Definitions & Study Discussion Study Dates: 03/07/16-04/21/16 Report Issued: 04/25/16 WP Study Definitions WP Study Discussion The Reported Value is the value that the laboratory reported ERA's WP-254 WatRTMPollution Proficiency Testing study to ERA. has been reviewed by ERA senior management and certified compliant with the requirements of the 2009 TNI PT Standard The ERA Assigned Values are compliant with the most and the criteria contained in the most current TNI Fields of current TNI Fields of Proficiency Testing(FoPT)tables. A Proficiency Testing(FoPT)tables. parameter not added to the standard is given an Assigned Value of"<PTRL"per the guidelines contained in the 2009 ERA's WP-254 WatRTMPollution study standards were TNI Standards. The assigned values are directly traceable to examined for any anomalies. A full review of all homogeneity, the commercially prepared starting materials used to stability and accuracy verification data was completed. All manufacture the PT standards. analytical verification data for all analytes met the acceptance criteria contained in the 2009 TNI PT Standard and the The Acceptance Limits are established per the criteria criteria contained in the most current TNI FoPT tables. contained in the most current USEPA/NELAC FoPT tables,or ERA's SOP for the Generation of Performance Acceptance The data submitted by participating laboratories was also Limits TM as applicable. examined for study anomalies. There were no anomalies observed during the statistical review of the data. The Performance Evaluation: ERA's WP-254 WatRTMPollution study reports shall not be reproduced except in their entirety and not without the permission of the participating laboratories. The report must Acceptable = Reported Value falls within the not be used by the participating laboratories to claim product Acceptance Limits. endorsement by any agency of the U.S.government. The data contained herein are confidential and intended for Not Acceptable = Reported Value falls outside the your use only. Acceptance Limits. If you have any questions or concerns regarding your assessment in ERA's WatRTAQPollution Proficiency Testing No Evaluation = Reported Value cannot be evaluated. program, please contact our Proficiency Testing Department at 1-800-372-0122. Not Reported = No Value reported. The Method Description is the method the laboratory reported to ERA. • Study#:WP-254 acctie"1rE-i1 0EIIA WP-254 2009 TNI Evaluation Final Complete Report A Waters Company Terry Powers EPA ID: CA00366 Lab Director ERA Customer Number: S586001 South Tahoe Public Utilities District Report Issued: 04/25/16 1275 Meadow Crest Dr. Study Dates: 03/07/16-04/21/16 South Lake Tahoe,CA 96150 530-543-6231 TNI Reported Assigned Acceptance Performance Z Score Analysis Study Study Analyte Analyte Units Value Value Limits Evaluation Method Description Date Mean Standard Analyst Name Code Deviation WP Simple Nutrients(cat#584,lot#P254-505) 1515 Ammonia as N mg/L 17.1 13.8-20.3 Not Reported 16.9 1.21 1820 Nitrate+Nitrite as N mg/L 5.24 5.29 4.34-6.19 Acceptable SM 4500-NO3 F-2000 3/10/2016 -0.225 5.30 0.252 2000 1810 Nitrate as N m /L 5.24 5.29 4.28-6.27 Acceptable SM 4500-NO3 F-2000 3/10/2016 -0.174 5.28 0.257 g 2000 1870 ortho-Phosphate as P mg/L 4.20 4.13 3.51-4.75 Acceptable SM 4500-P E-1999 1999 3/10/2016 0.369 4.13 0.185 WP Complex Nutrients(cat#579,lot#P254-525) 1795 Total Kjeldahl Nitrogen mg/L 9.42 9.43 6.88-11.9 Acceptable USGS 03-4174 4/9/2016 0.256 9.23 0.736 1910 Total phosphorus as P mg/L 4.26 4.16 3.43-4.85 Acceptable SM 4500-P E-1999 1999 4/7/2016 0.199 4.22 0.203 WP Nitrite(cat#888,lot#P254-770) 1840 Nitrite as N mg/L 1.85 1.70 1.43-1.97 Acceptable EPA 300.0 2.1 1993 3/10/2016 1.62 1.71 0.0871 WP Nitrite(cat#888,lot#P254-770) 1840 Nitrite as N mg/L 1.66 1.70 1.43-1.97 Acceptable SM 450 20003 F-2000 3/10/2016 0.563 1.71 0.0871 WP Nitrite(cat#888,lot#P254-770) 1840 Nitrite as N m /L 1.71 1.70 1.43-1.97 Acceptable SM 4500-NO2 B-2000 3/10/2016 0.0109 1.71 0.0871 g 2000 WP Demand(cat#578,lot#P254-516) 1530 BOD mg/L 119 101 54.3-148 Acceptable SM 5210 5-2001 2001 3/16/2016 1.05 104 14.6 1555 CBOD mg/L 91.6 42.5-141 Not Reported 95.0 15.0 1565 COD mg/L 164 131-191 Not Reported 162 10.3 2040 TOC mg/L 64.9 54.3-74.9 Not Reported 65.2 3.76 All analytes are included in ERA's A2LA accreditation.Lab Code: 1539-01 Page 5 of 916) 16341 Table Mountain Pkwy•Golden,CO 80403•800.372.0122•303.431.8454•fax 303.421.0159•www.eraqc.com Study#:WP-254