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Reclamation Permit Monitoring Report 2017 1stQuarter Se440 . 1950 • water South Public Utility District 1275 Meadow Crest Drive•South Lake Tahoe•CA 96150-7401 C'hone 530 544-6474•Fax 530 541-0614•www.stpud.us April 12, 2017 Patty Kouyoumdjian California Regional Water Quality Control Board - Lahontan Region 2501 Lake Tahoe Boulevard South Lake Tahoe, CA 96150 RB6-Lahontan(a�waterboards.ca.gov Subject: Reclamation Permit Monitoring Report, 1St Quarter 2017 Dear Ms. Kouyoumdjian, Enclosed is the South Tahoe Public Utility District's 2017 1st quarter self-monitoring report for January through March 2017. The District is reporting as required by the Wastewater Reclamation Permit (Board Order R6T-2004-0010A3, WDID No. 6A095900700). Wastewater Reclamation Permit (Board Order R6T-2004-0010A1). The effluent met all the requirements set forth in the Board Order for this quarter; there were no violations. Emergency Retention Basin (ERB) A total of 30.74 MG of wastewater was pumped to the ERB during this quarter. There was 6.16 MG pumped in January and 24.58 MG pumped during February. This was caused by increased influent flows during the severe winter storms. There was no wastewater remaining in the ERB on March 31 , 2017. The ERB was inspected on February 15, 2017; the report is attached. Export Pipeline The District's Final effluent export pipeline route was inspected February 2, 2017. No damage to the pipeline was detected. The report is attached. Wastewater Reclamation Permit Compliance This monitoring program provides for discontinued surface water monitoring, except SW-01 , SW-05, and SW-06, during the months of December, January and February. LRWQCB - Page 2 Operational Problems or Major Maintenance Activities Modifications and operational problems occurring during this quarter are detailed in the section titled Operational Problems and Major Maintenance Activities in this report. Notes Sampling and analysis problems for offsite sample locations are listed in the Sample Comments section. Two monitoring well sites, ACMW-23 andACMW-24, could not be sampled this quarter. They were inaccessible because of damage to the access road by the rain storms. Certification I certify under penalty of law that this document and all attachments were prepared under my direction or supervision following a system designed to ensure that qualified personnel properly gather and evaluate the information submitted. Based on my knowledge of the person(s) who manage the system or those directly responsible for data gathering, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment. If you have any questions or require additional information, please contact me at the number provided above. Sincerely, AV,OFESS,01, @- iso D F , ,: . ,y .z C 82309 :t7 P K /j2/=N * i FC0\ C)-'‘ Shannon Cotulla Assistant General Manager / Engineer scotulla(o stpud.dst.ca.us LRWQCB - Page 3 Enclosures: 1. Monthly Report Summary Pages Operational problems and maintenance activities. 1 Wastewater Treatment plant 6 Permit Compliance Record 1 Emergency Retention Basin (ERB) Inspection report. 2 Export Pipeline Inspection Report: 1 Sample site locations 2 Map of Alpine County sample sites 2 Harvey Place Reservoir recycled water storage 2 Harvey Place Reservoir Trihalomethanes test results 0 Alpine County and Tahoe Basin Surface waters, Groundwaters, and HPR 7 Blue Green Algae results: October— December 1 Alpine County and Tahoe Basin groundwater elevations 1 Alpine County soils 1 Sample Comments 1 Tahoe Basin ERB Monitoring Wells Purge Records 6 Alpine County Monitoring Wells Purge Records 10 Photos of Irrigation ditch flows 0 Total pages 44 cc: Alpine County Board of Supervisors STPUD Contract Commission — Dr. Richard Harvey Alpine County Health Department— Dr. Richard Johnson Alpine County Health Department — Dennis Lampson pdf: DeAnn Roberts, Woodfords Community Council Chairwoman Nevada Division of Environmental Protection — Jean Stone STPUD General Manager - Richard Solbrig STPUD Alpine County Operations — Jim Hilton STPUD Manager of Operations — Jeff Lee STPUD Operations Chief Plant Operator— Chris Siano STPUD Laboratory Director - Terry Powers File: D:\Lahontan\Reports\2017 1st Quarter Report.doc Operational Problems and Major Maintenance Activities January— March 2017 Wastewater Treatment Facilities • There was no major maintenance work at the treatment plant last quarter. We did export to the Emergency Retention Basin due to the increase in wastewater influent flows caused by the heavy rain and snow storms • During the February storm series the Luther Pass pump station was operated on emergency power (generator)for approximately 2 weeks due to power quality and reliability issues. The construction project to replace the motors on the Luther Pass pumps is continuing. Wastewater Conveyance System • Sewer Pump Stations o Replacement of 2 vacuum valves at Fallen Leaf Lake Vacuum Valve Station (VVS)#4. o Installed new pump at Fallen Leaf Lake Electrical Station (E.S.) #6. o Installed new discharge pump at Fallen Leaf Lake main station. o Set up portable generator at Fallen Leaf Lake E.S. #2 because of an avalanche that took out power at E.S. #1, #2, and #3. o Replaced #1 pump at Fallen Leaf Lake E.S. #6. o Replaced #1 and #2 pumps at Fallen Leaf Lake E.S. #5. o Replaced #2 pump at Fallen Leaf Lake E.S. #6 o Replaced #1 pump at Beecher Sewer station. o Replace pump at Fallen Leaf Lake E.S. #7. o Disassembled and shipped out#3 pump from Luther Pass Pump Station for rebuild. • Collection System o We had problems with I & I; crews replaced manhole lids with pick holes to solid lids. We also went around sealing manholes with grout in the chimneys and installing Manhole Hats which help with I & I infiltration. There were a couple of manholes damaged from the storms. Alpine County Disposal Facilities • Thomas Haen Company continues to work on the District's Diamond Valley Ranch Irrigation Improvements Project, Phase 1. However, minimal work took place during the months of January, February, and March. • No major problems to report related to the disposal facilities, but the ranch sustained some storm related erosion in certain areas due to the harsh winter storms Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 2/6/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 10:39 AM January 2017 < Flow MGD > BOD SS 2-Hr Peak Pond Pond Precipitation mg/L mg/L Date Day Inf Inf Eff Return Inf Inch Type Raw Final Raw Final 1/1/2017 Sun 4.57 6.8 4.99 1/2/2017 Mon 4.10 5.6 4.39 0.28 Snow 287 6.6 202 3.9 1/3/2017 Tue 3.83 4.8 4.26 0.93 Snow 1/4/2017 Wed 5.22 7.0 5.48 2.61 Snow 1/5/2017 Thu 4.58 6.5 5.79 0.32 Snow 1/6/2017 Fri 4.29 5.7 4.71 1/7/2017 Sat 6.43 7.6 7.24 0.83 Rain 179 11.6 153 8.0 1/8/2017 Sun 12.57 14.6 7.61 3.76 3.99 Rain 1/9/2017 Mon 7.41 11.3 8.43 1.02 1.21 Snow 91 12.5 77 7.6 1/10/2017 Tue 5.32 6.1 6.72 1.34 2.24 Snow 1/11/2017 Wed 5.35 6.2 7.98 1.40 0.61 Snow 1/12/2017 Thu 5.11 6.0 8.34 2.40 0.21 Snow 1/13/2017 Fri 5.50 6.1 7.05 1.55 1/14/2017 Sat 5.69 6.9 6.35 0.85 177 9.8 146 4.2 1/15/2017 Sun 5.59 7.1 6.15 1/16/2017 Mon 4.79 6.7 6.36 181 6.5 169 3.3 1/17/2017 Tue 4.16 5.6 4.37 1/18/2017 Wed 4.64 5.5 5.15 0.98 Snow 1/19/2017 Thu 4.66 5.4 5.14 1.10 Snow 1/20/2017 Fri 4.60 5.4 5.32 0.76 Snow 1/21/2017 Sat 4.60 5.8 4.69 0.39 Snow 177 3.7 141 1.2 1/22/2017 Sun 4.48 5.9 4.77 1.51 Snow 1/23/2017 Mon 4.18 5.0 4.65 0.50 Snow 1/24/2017 Tue 4.07 5.0 4.24 0.01 Snow 1/25/2017 Wed 4.01 4.7 4.90 170 3.8 158 1.0 1/26/2017 Thu 4.01 4.8 4.57 1/27/2017 Fri 4.29 6.3 4.47 1/28/2017 Sat 4.85 6.0 4.70 260 5.8 184 1.8 1/29/2017 Sun 4.47 6.3 4.89 1/30/2017 Mon 4.08 5.3 4.20 185 3.9 167 1.7 1/31/2017 Tue 3.74 4.7 4.24 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 155.19 196.7 172.15 6.16 6.16 18.48 1707 64.2 1397 32.7 Maximum 12.57 14.6 8.43 1.55 3.76 3.99 287 12.5 202 8.0 Minimum 3.74 4.7 4.20 0.85 2.40 0.01 91 3.7 77 1.0 Average 5.01 6.3 5.55 1.23 3.08 1.09 190 7.1 155 3.6 • #Tests 31 31 31 5 2 17 9 9 9 9 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 2/6/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 10:39 AM January 2017 pH Chlorine <Final Total Coliforms> Total Nitrogen TDS Units mg/L MPN/100 mL mg/L mg/L Date Day Raw Final Final Total may-Median Raw Final Raw Final 1/1/2017 Sun 7.35 7.72 6.2 < 1 < 1 1/2/2017 Mon 7.32 7.58 7.8 < 1 < 1 265 263 1/3/2017 Tue 7.38 7.49 6.4 < 1 < 1 1/4/2017 Wed 7.31 7.50 6.3 < 1 < 1 34.6 34.7 1/5/2017 Thu 7.46 7.48 6.6 < 1 < 1 1/6/2017 Fri 7.37 7.38 6.4 < 1 < 1 1/7/2017 Sat 7.25 7.54 7.2 < 1 < 1 1/8/2017 Sun 7.20 7.45 6.4 1 < 1 1/9/2017 Mon 7.45 7.58 7.4 < 1 < 1 154 135 1/10/2017 Tue 7.41 7.24 10.0 < 1 < 1 22.6 13.6 1/11/2017 Wed 7.46 7.50 8.1 < 1 < 1 1/12/2017 Thu 7.47 7.28 8.9 < 1 < 1 1/13/2017 Fri 7.32 7.26 7.0 < 1 < 1 1/14/2017 Sat 7.39 7.50 6.8 < 1 < 1 1/15/2017 Sun 7.46 7.45 7.0 < 1 < 1 1/16/2017 Mon 7.22 7.42 6.6 < 1 < 1 226 224 1/17/2017 Tue 7.53 7.57 7.4 < 1 < 1 26.4 23.5 1/18/2017 Wed 7.26 7.56 6.8 < 1 < 1 1/19/2017 Thu 7.40 7.82 6.7 < 1 < 1 1/20/2017 Fri 7.69 7.72 6.1 < 1 < 1 1/21/2017 Sat 7.40 7.72 5.9 < 1 < 1 1/22/2017 Sun 7.45 7.80 5.8 < 1 < 1 1/23/2017 Mon 7.33 7.62 6.1 < 1 < 1 28.6 25.2 1/24/2017 Tue 7.41 7.77 6.5 1 < 1 1/25/2017 Wed 7.40 7.78 6.2 < 1 < 1 1/26/2017 Thu 7.32 7.60 6.7 < 1 < 1 1/27/2017 Fri I 7.53 7.78 7.1 < 1 < 1 1/28/2017 Sat 7.41 7.78 4.8 < 1 < 1 1/29/2017 Sun 7.45 7.90 6.6 < 1 < 1 1/30/2017 Mon 7.37 7.77 6.0 < 1 < 1 1/31/2017 Tue 7.43 7.80 6.3 < 1 < 1.0 28.6 23.9 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 229.20 235.36 210.1 31 31 140.8 120.9 645 622 Maximum 7.69 7.90 10.0 1 1 34.6 34.7 265 263 Minimum 7.20 7.24 4.8 1 1 22.6 13.6 154 135 Average 7.39 7.59 6.78 1.0 1.0 28.2 24.2 215 207 #Tests 31 31 31 31 31 5 5 3 3 Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 3/22/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 11:53 AM February 2017 < Flow MGD > BOD SS 2-Hr Peak Pond Pond Precipitation mg/L mg/L Date Day Inf Inf Eff Return Inf Inch Type Raw Final Raw Final 2/1/2017 Wed 3.70 4.5 3.87 2/2/2017 Thu 3.94 4.7 4.28 0.16 Snow 2/3/2017 Fri 4.50 5.3 5.32 0.65 Snow 2/4/2017 Sat 5.01 6.2 5.50 0.01 Snow 189 7.0 176 3.0 2/5/2017 Sun 4.68 6.4 5.26 0.14 Snow 2/6/2017 Mon 5.27 5.7 5.12 0.82 Rain 2/7/2017 Tue 11.36 12.4 7.55 4.57 2.27 Rain 2/8/2017 Wed 11.38 13.6 8.20 4.00 1.10 Rain 56 6.0 57 4.5 2/9/2017 Thu 12.25 14.7 6.95 6.00 2.16 Rain 2/10/2017 Fri 12.40 15.5 7.67 5.50 1.62 Snow 2/11/2017 Sat 8.11 9.9 7.37 1.48 113 6.8 80 4.3 2/12/2017 Sun 6.71 8.4 8.10 0.58 2/13/2017 Mon 5.73 7.0 7.54 1.06 2/14/2017 Tue 5.31 6.1 7.83 1.74 2/15/2017 Wed 5.17 6.0 7.36 1.45 125 5.2 149 2.2 2/16/2017 Thu 5.37 6.2 7.89 1.73 0.33 Snow 2/17/2017 Fri 5.44 6.3 6.89 0.76 0.07 Snow 2/18/2017 Sat 5.84 7.1 7.58 0.98 0.05 Rain 173 6.9 157 2.6 2/19/2017 Sun 6.12 7.2 7.67 0.78 0.34 Rain 2/20/2017 Mon 9.32 10.7 8.05 2.08 2.74 Rain 120 8.3 116 3.7 2/21/2017 Tue 7.41 10.2 7.18 0.95 1.16 Snow 2/22/2017 Wed 6.12 7.1 8.21 1.27 0.13 Snow 2/23/2017 Thu 5.71 6.6 8.32 1.78 0.01 Snow 2/24/2017 Fri 5.68 6.7 7.11 0.72 2/25/2017 Sat 5.88 7.2 7.32 0.71 182 10.0 142 4.7 2/26/2017 Sun 5.41 7.1 7.68 1.50 0.07 Snow 2/27/2017 Mon 4.79 5.7 7.74 2.18 0.15 Snow 2/28/2017 Tue 4.60 5.7 7.71 2.34 158 8.9 159 3.9 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 183.21 220.2 197.27 19.58 24.58 13.98 1116 59.0 1036 28.9 Maximum 12.40 15.5 8.32 2.34 6.00 2.74 189 10.0 176 4.7 Minimum 3.70 4.5 3.87 0.58 0.95 0.01 56 5.2 57 2.2 Average 6.54 7.9 7.05 1.31 3.51 0.74 140 7.4 129 3.6 #Tests 28 28 28 15 7 19 8 8 8 8 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 3/22/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 11:53 AM February 2017 pH Chlorine <Final Total Coliforms> Total Nitrogen TDS Units mg/L MPN/100 mL mg/L mg/L Date Day Raw Final Final Total may-Median Raw Final Raw Final 2/1/2017 Wed 7.36 7.78 6.2 < 1 < 1 2/2/2017 Thu 7.52 7.68 6.4 < 1 < 1 2/3/2017 Fri 7.35 7.58 6.3 < 1 < 1 2/4/2017 Sat 7.34 7.68 8.3 < 1 < 1 2/5/2017 Sun 7.42 7.88 7.0 < 1 < 1 2/6/2017 Mon 7.30 7.66 6.5 < 1 < 1 23.3 26.0 2/7/2017 Tue 7.13 7.59 5.8 < 1 < 1 2/8/2017 Wed 6.98 7.18 12.0 1 < 1 127 138 2/9/2017 Thu 7.23 7.40 8.5 < 1 < 1 2/10/2017 Fri 7.44 7.34 7.5 < 1 < 1 2/11/2017 Sat 7.38 7.37 6.5 < 1 < 1 2/12/2017 Sun 7.31 7.44 6.4 < 1 < 1 2/13/2017 Mon 7.39 7.67 6.6 < 1 < 1 2/14/2017 Tue 7.28 7.54 6.6 < 1 < 1 20.9 13.8 2/15/2017 Wed 7.29 7.50 6.6 < 1 < 1 260 206 2/16/2017 Thu 7.27 7.51 6.5 < 1 < 1 2/17/2017 Fri 7.38 7.64 6.2 < 1 < 1 2/18/2017 Sat 7.39 7.67 6.3 . < 1 < 1 2/19/2017 Sun 7.39 7.72 6.4 < 1 < 1 2/20/2017 Mon 7.19 7.57 6.0 < 1 < 1 2/21/2017 Tue 7.35 7.52 6.2 < 1 < 1 18.4 15.2 2/22/2017 Wed 7.32 7.52 6.2 < 1 < 1 2/23/2017 Thu 7.51 7.70 6.2 < 1 < 1 2/24/2017 Fri 7.49 7.64 6.4 < 1 < 1 2/25/2017 Sat 7.41 7.72 6.2 < 1 < 1 2/26/2017 Sun 7.38 7.74 5.8 < 1 < 1 2/27/2017 Mon 7.36 7.61 6.3 < 1 < 1 2/28/2017 Tue 7.30 7.47 6.3 < 1 < 1 28.0 16.2 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 205.46 212.32 188.2 28 28 90.6 71.2 387 344 Maximum 7.52 7.88 12.0 1 1 28.0 26.0 260 206 Minimum 6.98 7.18 5.8 1 1 18.4 13.8 127 138 Average 7.34 7.58 6.72 1.0 1.0 - 22.7 17.8 194 172 #Tests 28 28 28 28 28 4 4 2 2 Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 4/4/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 2:31 PM March 2017 < Flow MGD > BOD SS 2-Hr Peak Pond Pond Precipitation mg/L mg/L Date Day Inf Int Eff Return Inf Inch Type Raw Final Raw Final 3/1/2017 Wed 4.52 5.3 8.28 2.93 3/2/2017 Thu 4.61 5.4 7.85 2.46 3/3/2017 Fri 4.82 5.5 7.63 2.05 3/4/2017 Sat 5.25 6.2 7.25 1.27 0.11 Snow 184 10.1 132 5.0 3/5/2017 Sun 4.93 6.0 6.63 1.04 1.17 Snow 3/6/2017 Mon 4.54 5.5 5.33 0.26 0.02 Snow 3/7/2017 Tue 4.33 5.1 5.60 3/8/2017 Wed 4.40 5.2 6.10 1.09 153 8.2 158 4.3 3/9/2017 Thu 4.54 5.5 4.63 0.37 3/10/2017 Fri 4.79 5.6 5.38 3/11/2017 Sat 4.79 6.5 5.02 0.27 172 5.2 146 2.9 3/12/2017 Sun 5.05 6.7 5.67 0.05 3/13/2017 Mon 5.02 5.8 5.46 0.11 3/14/2017 Tue 5.14 6.1 5.59 0.11 3/15/2017 Wed 5.43 6.5 6.90 0.78 108 3.0 3/16/2017 Thu 5.71 6.8 7.39 0.94 3/17/2017 Fri 5.80 6.7 6.59 0.13 3/18/2017 Sat , 6.22 7.4 6.57 0.31 0.01 Rain 156 9.4 126 4.6 3/19/2017 Sun 6.07 7.4 6.69 0.05 0.01 Rain 3/20/2017 Mon 5.83 6.6 6.66 0.01 Rain 3/21/2017 Tue 6.93 8.6 8.17 1.00 Rain 3/22/2017 Wed 5.76 6.8 6.04 0.04 Rain 92 7.2 101 4.2 3/23/2017 Thu 5.26 6.2 6.34 1.08 3/24/2017 Fri 5.89 6.7 6.51 0.62 0.48 Snow 3/25/2017 Sat 6.03 7.0 6.04 0.59 0.02 Rain 134 8.6 124 4.3 3/26/2017 Sun 5.74 7.2 6.40 0.05 Rain 3/27/2017 Mon 5.41 6.2 5.86 0.17 Snow 118 4.2 3/28/2017 Tue 5.21 6.0 6.96 1.05 3/29/2017 Wed 5.27 6.0 6.97 3/30/2017 Thu 5.73 6.8 6.43 0.19 Snow 3/31/2017 Fri 5.39 6.2 5.88 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 164.41 195.5 198.82 17.56 0.00 3.28 891 48.6 1013 32.5 Maximum 6.93 8.6 8.28 2.93 0.00 1.17 184 10.1 158 5.0 Minimum 4.33 5.1 4.63 0.05 0.00 0.01 92 5.2 101 2.9 Average 5.30 6.3 6.41 0.84 0.25 148 8.1 127 4.1 #Tests 31 31 31 21 0 13 6 6 8 8 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 4/4/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 2:30 PM March 2017 • pH Chlorine <Final Total Coliforms> Total Nitrogen TDS Units mg/L MPN/100 mL mg/L mg/L Date Day Raw Final Final Total 7day-Median Raw Final Raw Final 3/1/2017 Wed 7.35 7.60 6.2 < 1 < 1 3/2/2017 Thu 7.35 7.56 6.4 < 1 < 1 3/3/2017 Fri 7.32 7.48 6.0 < 1 < 1 3/4/2017 Sat 7.32 7.51 6.2 < 1 < 1 3/5/2017 Sun 7.51 7.74 6.0 < 1 < 1 i 3/6/2017 Mon 7.38 7.70 6.4 < 1 < 1 31.0 24.7 3/7/2017 Tue 7.38 7.74 6.1 < 1 < 1 3/8/2017 Wed 7.42 7.72 6.4 < 1 < 1 250 240 3/9/2017 Thu 7.35 7.76 6.6 < 1 < 1 3/10/2017 Fri 7.30 7.71 6.1 < 1 < 1 3/11/2017 Sat 7.34 7.69 6.8 < 1 < 1 3/12/2017 Sun 7.31 7.78 5.7 < 1 < 1 3/13/2017 Mon 7.33 7.80 6.1 < 1 < 1 23.3 22.9 3/14/2017 Tue 7.29 7.66 6.8 1 < 1 3/15/2017 Wed 7.34 7.72 9.1 < 1 < 1 226 216 3/16/2017 Thu 7.26 7.56 6.8 < 1 < 1 3/17/2017_ Fri 7.38 7.56 6.0 < 1 < 1 3/18/2017 Sat 7.31 7.68 5.8 < 1 < 1 3/19/2017 Sun 7.34 7.70 6.3 < 1 < 1 3/20/2017 Mon 7.33 7.71 6.5 < 1 < 1 18.6 16.5 222 224 3/21/2017 Tue 7.18 7.52 6.4 < 1 < 1 3/22/2017 Wed 7.21 7.52 6.4 < 1 < 1 3/23/2017 Thu 7.30 7.62 5.9 < 1 < 1 3/24/2017 Fri 7.34 7.70 5.8 < 1 < 1 3/25/2017 Sat 7.34 7.72 6.8 < 1 < 1 3/26/2017 Sun 7.24 7.59 6.0 < 1 < 1 3/27/2017 Mon 7.38 7.70 6.0 < 1 < 1 15.8 16.8 3/28/2017 Tue 7.31 7.56 5.8 < 1 < 1 3/29/2017 Wed 7.46 7.62 6.0 < 1 < 1 3/30/2017 Thu 7.34 7.68 5.7 < 1 < 1 3/31/2017 Fri 7.32 7.70 6.4 < 1 < 1.0 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 227.33 237.31 195.5 31 31 88.7 80.9 698 680 Maximum 7.51 7.80 9.1 1 1 31.0 24.7 250 240 Minimum 7.18 7.48 5.7 1 1 15.8 16.5 222 216 Average 7.33 7.66 6.31 1.0 1.0 22.2 20.2 233 227 #Tests 31 31 31 31 31 4 4 3 3 • Page 3 SOUTH TAHOE PUBLIC UTILITY DISTRICT WASTEWATER TREATMENT PLANT NUMBER OF VIOLATIONS 2017 Parameter #Tests Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total Compliance Total Plant Inflow;7.7 MGD;Dry Weather 90 0 6 0 6 93.3% 2-Hour Peak Inflow; 18.5 MGD 90 0 0 0 0 100.0% BOD,30 Day Ave:30 mg/L 3 0 0 0 0 100.0% BOD,Max:45 mg/L 23 0 0 0 0 100.0% SS,30 Day Ave:30 mg/L 3 0 0 0 0 100.0% SS,Max:60 mg/L 25 0 0 0 0 100.0% pH,6.5 to 8.5 90 0 0 0 0 100.0% Total Coliforms,Max:240 MPN/100 mL 90 0 0 0 0 100.0% Total Coliforms,7-day Median:23 MPN 90 0 0 0 0 100.0% Total 504 0 6 0 0 0 0 0 0 0 0 0 0 6 98.8% South Tahoe Public Utility District ERB Inspection Date of Inspection: 3/a/ /11 Performed by: i4 le SG FGtiv� G Y 'l Inspection Procedure: Walk the entire crest of the ERB looking for any problems. Pay particular attention to the condition of the liner.Note the location of any needed repairs on the map on the next page. If the basin is empty and free of snow,walk the entire interior tow checking for liner failures. Scan the entire floor for breaches of any kind. Rodent activity: /') 0/? e Vegetation control: ten 051- GO V e tted i SnO Overflow Spillway: 5 00 Stairs North: 50 D C Stairs South: ✓I 0/1 Top Fill Structure North: ilia. Top Fill Structure South: /VA. Drain Valve North: 5'0 D c Drain Valve South: Cb be r e I 'i 54 OW Perimeter Fence & Gates: 5 0 0 C1 Valve House: (^ 0 0 G Comments: / � � CC��6 e// a feta. IS 41 nit O * ev oi, ,e e y Date of Inspection: 3 1,17117 PerormeP Performed by: /4/e. f r f 1' !' c f t' !' a' a' -- + + 4 + 4 + + + + + -- Valve House . ' �_..� - - -__. .--.r f f r + rr ,' + + + + + 44 ik t f- 1. 1 4:, Outlet Valve :+t i , .4- + -- + + + + + + North Pond .4 . s ,. ct %0(04/ W 1.6_,L Stairs _ _- r i f Outlet Valve ,z-�`f t I r, • 1 1 I 11 • 4 d' 1 +.'i f + + + ".t I ! ' , e , I I i South Po r , k I M4 I% .4 + .' ' f + + —ti .r I .4 ./i 7 1 i - -, ..I' + +5 4, � �� J+ + 5 #f. Stall S — L. - + 1 + - + + + t -- L : 1. -- + + + + . + AfJ + + + + _ 54 + + + + + + + + + _ 1 1 1 ! - 1 # t t 7 SOUTH TAHOE PUBLIC UTILITY DISTRICT MEMORANDUM Date: February 15, 2017 M. To: RICHARD SOLBRIG, PAUL SCIUTO, TIM BLEDSOE,TERRY PO '--- From: Larry Mcdonough Topic: Export Line Check ************************************************************** * On 2/15/17, Dan Huber, Larry McDonough, James Cullen, conducted our check of the District's export line from the treatment plant to station 564+06 near the Harvey Place reservoir. No damage to the pipe was found. Larry J. Mcdonough Inspector CC Terry Powers EXPRT 1 000.M EM Sample Sites [Site - ` •. Latitude ; Congit ide '$Location . -2 . • •', -Type.Sample_"""'1 Alpine County Monitoring Wells ACMW-01AW 38.766952 -119.781561 Below Main Dam Monitoring Well ACMW-01 BE 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 Cello Ranch,along DV Rd Monitoring Well ACMW-06S 38.800481 -119.763195 Cello 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 [Site' �L:atitude Longitude Location TypeSample.. 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 MW 11 38.9238680 -119.9677190 250 ft south east of North Gate(to Al Tahoe Blvd) Monitoring Well MW 12 38.9226200 -119.9683700 110 ft south of Biosolids Building Monitoring Well MW 13 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 • a eA3F. 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A l i. ti:if t L Irriga4on-Bl'• Recycled Water �j a 4 0 °° '°°° `°°"" H C N RECYCLEDSOUTWATER MONITORINGPUBLICUTILITY PROGRAM WELLTAHOE LOCATIONS W%\E0 CARSON VALLEY GROUNDWATER BASIN (6-6) s ALPINE COUNTY, CA 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 • 01/01/15 • 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 01/01/17 940 2,860 02/01/17 1,843 1,957 03/01/17 3,082 718 • E:\HPR\HPR Current Storage-Lahontan_Report.xds Acre-feet -� N N) W W .A U1 b U1 b U7 b C71 b O O O O O O O O O 01/15 02/15 03/15 04/15 05/15 06/15 07/15 08/15 73 09/15 CD gy 10/15 11/15 0 CD 12/15 C 01/16 . y 02/16_ S 03/16 04/16 rF CD 73 05/16 ♦A 06/16_ / y 07/16 CD0 CD 0 mig 08/16 I O m 09/16 . 10/16 CD 11/16 12/16 01/17 02/17 03/17 04/17 05/17 06/17 07/17 08/17 09/17 10/17 11/17 12/17 Alpine County Summary Report Temp pH EC DO Alk TDS SS Turb Chloride Sulfate ACMW-01AW 01/24/2017 Main Dam 9.5 6.14 90 40.0 68 1.75 3.68 ACMW-01BE 01/24/2017 Secondary Dam 8.0 6.00 120 58.5 86 1.73 2.12 ACMW-02N 01/24/2017 Access Gate 11.6 6.26 149 58.7 99 1.55 2.68 ACMW-02S 01/24/2017 Access Gate 9.8 5.97 111 42.4 78 1.79 6.68 ACMW-04W 01/24/2017 Gansberg 11.6 5.91 210 40.5 138 21.2 18.6 ACMW-06S 01/24/2017 Cello 12.5 6.50 614 199 308 53.7 26.7 ACMW-07S 02/22/2017 Diamond Valley Ranch 10.2 6.89 104 46.8 84 1.53 2.27 ACMW-08N 02/22/2017 Diamond Valley Ranch 10.7 6.83 151 77.5 117 1.26 1.08 ACMW-09D 03/07/2017 Diamond Valley Ranch 12.0 6.55 112 30.3 110 1.60 3.48 ACMW-10 03/07/2017 Diamond Valley Ranch 11.7 6.76 184 85.3 143 4.19 3.42 ACMW-11 03/07/2017 Diamond Valley Ranch 8.2 6.58 94.7 32.1 78 2.08 5.07 ACMW-12 02/22/2017 Diamond Valley Ranch 11.6 6.69 105 49.4 93 1.62 2.57 ACMW-13 02/22/2017 Diamond Valley Ranch 6.6 5.98 96.6 45.0 120 1.34 2.93 ACMW-14 03/07/2017 Diamond Valley Ranch 8.8 6.15 190 19.3 174 2.27 2.05 ACMW-15 03/14/2017 Diamond Valley Ranch 10.9 6.54 78.3 24.3 53 1.08 2.30 ACMW-16 03/14/2017 Diamond Valley Ranch 8.5 6.78 147 49.4 100 1.91 5.17 ACMW-17 03/14/2017 Diamond Valley Ranch 9.3 6.26 86.5 30.1 68 1.60 4.29 ACMW-18 03/14/2017 Diamond Valley Ranch 10.3 6.99 112 21.9 80 1.61 4.64 ACMW-19 03/14/2017 Diamond Valley Ranch 10.7 7.22 165 74.9 109 2.57 4.72 ACMW-20 02/15/2017 Diamond Valley Rd- 9.7 6.16 131 29.4 118 2.66 5.81 Paynesville ACMW-21 02/15/2017 River Ranch Rd 10.0 6.16 141 43.4 110 6.78 4.31 ACMW-22 02/15/2017 Fredericksburg Ln 12.0 5.98 120 38.2 110 3.83 1.85 ACMW-25 02/15/2017 Access road between 9.9 6.64 182 39.2 137 12.1 10.1 Neddenriep&Brooke ranches ACMW-26 02/15/2017 Access road between 4.9 6.79 217 43.8 151 24.7 9.61 Neddenriep&Brooke ranches CONTROL 01/26/2017 East side near Post Office 8.3 6.75 245 15.5 ERB 01/13/2017 ERB. 1.1 7.18 168 15.4 01/20/2017 ERB 2.2 6.78 66.3 4.38 . GW-05 03/07/2017 Neddenriep 7.7 6.66 262 61.3 177 24.1 10.0 GW-08 03/07/2017 Arant 12.9 6.52 340 44.4 220 47.8 19.2 GW-11 02/15/2017 Diamond Valley School 11.5 7.37 141 71.7 123 1.06 0.718 GW-17 02/15/2017 Diamond Valley Ranch House 12.1 7.17 162 77.1 96 1.81 1.03 Well HPR 01/18/2017 Harvey Place Reservoir 2.2 7.77 392 8.70 106 192 43.4 15 36.2 12.6 02/01/2017 Harvey Place Reservoir 3.3 7.83 423 9.12 110 201 10.4 7.8 37.2 12.1 03/01/2017 Harvey Place Reservoir 5.2 8.42 357 10.1 89.3 166 2.86 4.8 30.2 9.59 HVC-1 01/26/2017 HVC @ Pioneer Trail 0.8 7.02 57 1.38 02/23/2017 HVC @ Pioneer Trail 1.7 7.40 54.3 1.08 03/28/2017 HVC @ Pioneer Trail 2.4 7.37 55.1 0.796 HVC-2 01/26/2017 HVC 250'Upstream Pond#2 0.4 6.05 44.9 2.15 02/23/2017 HVC 250'Upstream Pond#2 0.4 6.60 40.1 2.24 Results reseeded as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as C NC=Not counted Page 1 of 8 Alpine County Summary Report Temp pH EC DO Alk TDS SS Turb Chloride Sulfate HVC-2 03/28/2017 HVC 250'Upstream Pond#2 0.9 6.57 50.6 2.88 HVC-3 02/23/2017 HVC 25 Downstream of 0.4 7.37 41.3 2.77 Meadow Crest . 03/28/2017 HVC 25 Downstream of 1.0 7.01 56.3 3.47 Meadow Crest HVC-5 01/08/2017 Effluent of STPUD Drainage 1.0 6.68 66.8 29.0 24 14.5 Pipe along Meadow Crest 02/07/2017 Effluent of STPUD Drainage 1.3 6.91 74.4 97.1 68 17.2 Pipe along Meadow Crest MW01 5 01/26/2017 SW corner of ERB 8.1 7.00 173 2.24 MW02-50 01/26/2017 South side of ERB Pond 8.5 6.53 309 33.7 MW03-50 01/26/2017 Southwest corner of ERB Pond 9.3 6.30 409 38.3 MW07-50 01/31/2017 North side of ERB Pond 6.9 4.73 190 11.8 MW08-25 01/26/2017 South of Pond 1 8.3 5.76 2477.73 MW11 01/26/2017 North of Biosolids building 8.4 6.74 112 1.45 MW12 01/31/2017 South of Biosolids Building 9.6 6.41 1223 8.12 MW13 01/26/2017 South of Pond 2 along HVC 5.0 7.14 963 17.2 SW-01 01/18/2017 Carson River Woodfords 1.6 6.83 61.5 10.1 26.6 47 4.48 2.3 1.83 1.75 02/01/2017 Carson River Woodfords 1.5 6.80 70.6 11.6 30.8 67 1.31 1.1 1.78 1.82 03/01/2017 Carson River Woodfords 0.6 7.61 77.9 12.3 32.3 67 1.82 1.0 2.37 1.66 SW-02 03/01/2017 Indian Creek Upper 2.3 7.06 60.1 11.3 28.9 62 0.26 2.2 1.16 0.386 SW-03 03/01/2017 Indian Creek Mid 1.9 6.92 84.1 11.6 34.3 79 1.54 5.8 1.90 1.65 SW-04 03/01/2017 Indian Creek Lower 5.9 7.41 69.6 10.4 40.0 88 21.4 12 2.28 2.70 SW-05 01/18/2017 Carson River Paynesville 2.2 7.57 65.8 10.3 28.6 58 3.64 2.0 1.96 2.08 02/01/2017 Carson River Paynesville 1.6 6.88 78.9 11.8 32.4 68 1.18 1.1 2.74 2.18 03/01/2017 Carson River Paynesville 2.0 6.93 84.2 12.3 34.1 68 2.41 1.3 2.77 2.03 SW-06 01/18/2017 Carson River Stateline 2.2 7.03 63.1 10.3 28.8 60 4.28 1.9 2.12 2.28 02/01/2017 Carson River Stateline 1.4 6.90 81.3 11.9 33.0 69 1.53 1.2 3.02 2.37 03/01/2017 Carson River Stateline 2.5 7.36 86.8 12.3 34.3 67 2.80 1.0 2.89 2.21 SW-08 03/01/2017 Irrigation Ditch 7.1 6.58 112 11.3 43.0 112 1.36 3.0 2.14 8.39 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp asC NC=Not counted Page 2 of 8 Alpine County Summary Report Total P Total P PO4-P NH3-N Total N NO2-N NO3-N TKN Dissolved ACMW-01AW 01/24/2017 Main Dam 0.010 0.018 <0.020 0.234 <0.010 0.235 <0.110 ACMW-01BE 01/24/2017 Secondary Dam 0.010 0.016 <0.020 0.258 <0.010 0.282 <0.110 ACMW-02N 01/24/2017 Access Gate 0.021 <0.030 <0.020 3.04 <0.030 2.89 0.150 ACMW-02S 01/24/2017 Access Gate 0.020 <0.030 <0.020 1.47 <0.030 1.45 <0.110 ACMW-04W 01/24/2017 Gansberg 0.028 <0.030 <0.020 1.77 <0.030 1.63 0.140 ACMW-06S 01/24/2017 Celia 0.058 0.053 <0.020 0.157 • <0.010 0.021 0.136 ACMW-07S 02/22/2017 Diamond Valley Ranch 0.041 0.038 <0.020 0.482 <0.010 0.567 <0.050 ACMW-08N 02/22/2017 Diamond Valley Ranch 0.048 0.038 <0.020 0.557 <0.010 0.622 <0.050 ACMW-09D 03/07/2017 Diamond Valley Ranch 0.052 0.050 <0.020 5.69 <0.040 5.34 0.35 • ACMW-10 03/07/2017 Diamond Valley Ranch 0.044 0.036 <0.020 0.583 <0.010 0.631 <0.050 ACMW-11 03/07/2017 Diamond Valley Ranch 0.025 <0.030 <0.020 4.60 <0.030 2.19 2.41 ACMW-12 02/22/2017 Diamond Valley Ranch 0.034 0.029 <0.020 0.297 <0.010 0.380 <0.050 ACMW-13 02/22/2017 Diamond Valley Ranch <0.010 <0.010 <0.020 0.116 <0.010 0.046 0.070 ACMW-14 03/07/2017 Diamond Valley Ranch 0.020 <0.200 <0.020 18.0 <0.200 16.1 1.9 ACMW-15 03/14/2017 Diamond Valley Ranch 0.029 0.022 <0.020 2.21 <0.010 2.08 0.13 ACMW-16 03/14/2017 Diamond Valley Ranch 0.058 0.051 <0.020 3.34 <0.010 3.10 0.24 ACMW-17 03/14/2017 Diamond Valley Ranch 0.026 0.019 <0.020 1.17 <0.010 1.10 0.07 ACMW-18 03/14/2017 Diamond Valley Ranch 0.028 <0.040 <0.020 5.97 <0.030 5.80 0.17 ACMW-19 03/14/2017 Diamond Valley Ranch 0.101 0.090 0.038 0.166 <0.010 <0.010 0.166 ACMW-20 02/15/2017 Diamond Valley Rd- 0.052 0.047 <0.020 5.72 <0.020 5.61 0.11 Paynesville ACMW-21 02/15/2017 River Ranch Rd 0.065 0.061 <0.020 2.74 <0.010 2.64 0.10 ACMW-22 02/15/2017 Fredericksburg Ln 0.021 <0.020 <0.020 3.20 <0.020 3.11 0.09 ACMW-25 02/15/2017 Access road between 0.041 0.042 <0.020 4.24 <0.020 4.02 0.22 Neddenriep&Brooke ranches ACMW-26 02/15/2017 Access road between 0.172 0.173 <0.020 1.98 <0.020 1.64 0.34 Neddenriep&Brooke ranches CONTROL 01/26/2017 East side near Post Office <0.050 4.68 ERB 01/13/2017 ERB 0.060 0.188 01/20/2017 ERB 0.023 0.030 GW-05 03/07/2017 Neddenriep 0.036 <0.040 <0.020 4.64 <0.040 3.88 0.76 GW-08 03/07/2017 Arant 0.047 <0.060 <0.020 9.15 <0.060 9.10 0.05 GW-11 02/15/2017 Diamond Valley School 0.052 0.047 <0.020 0.450 <0.010 0.540 <0.050 GW-17 02/15/2017 Diamond Valley Ranch House 0.012 <0.010 0.058 0.131 <0.010 <0.010 0.131 Well HPR 01/18/2017 Harvey Place Reservoir 1.97 1.73 13.7 17.2 0.467 1.49 15.2 02/01/2017 Harvey Place Reservoir 1.96 1.78 15.7 15.4 0.443 1.34 13.6 03/01/2017 Harvey Place Reservoir 1.29 1.36 11.5 16.2 0.261 0.980 15.0 HVC-1 01/26/2017 HVC @ Pioneer Trail <0.020 0.130 <0.010 0.040 <0.110 02/23/2017 HVC @ Pioneer Trail <0.020 0.110 <0.010 0.024 0.086 03/28/2017 HVC @ Pioneer Trail. <0.020 0.064 <0.010 0.017 <0.050 HVC-2 01/26/2017 HVC 250'Upstream Pond#2 <0.020 0.213 <0.010 0.010 0.203 02/23/2017 HVC 250'Upstream Pond#2 <0.020 0.206 <0.010 0.053 0.153 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as C NC=Nat counted Page 3 of 8 . Alpine County Summary Report Total P Total P PO4-P NH3-N Total N NO2-N NO3-N iTKN Dissolved HVC-2 03/28/2017 HVC 250'Upstream Pond#2 <0.020 0.142 <0.010 <0.010 0.142 HVC-3 02/23/2017 HVC 25'Downstream of <0.020 0.223 <0.010 0.068 0.155 Meadow Crest 03/28/2017 HVC 25'Downstream of <0.020 0.173 <0.010 0.046 0.127 Meadow Crest HVC-5 01/08/2017 Ef0uent of STPUD Drainage 0.143 <0.020 0.211 <0.010 0.056 0.155 Pipe along Meadow Crest 02/07/2017 Effluent of STPUD Drainage 0.248 0.021 <0.010 0.109 Pipe along Meadow Crest MW01 5 01/26/2017 SW corner of ERB <0.010 0.420 MW02-50 01/26/2017 South side of ERB Pond <0.030 2.61 MW03-50 01/26/2017 Southwest corner of ERB Pond <0.20 9.15 MW07-50 01/31/2017 North side of ERB Pond <0.010 0.457 MW08-25 01/26/2017 South of Pond 1 <0.010 1.13 MW11 01/26/2017 North of Biosolids building <0.010 0.377 MW12 01/31/2017 South of Biosolids Building <0.10 34.3 MW13 01/26/2017 South of Pond 2 along HVC <0.10 22.0 SW-01 01/18/2017 Carson River Woodfords 0.023 0.010 <0.020 0.193 <0.010 0.041 0.152 02/01/2017 Carson River Woodfords 0.010 <0.010 <0.020 0.184 <0.010 0.022 0.162 03/01/2017 Carson River Woodfords 0.013 0.011 <0.020 0.142 <0.010 0.021 0.121 SW-02 03/01/2017 Indian Creek Upper 0.017 0.017 <0.020 0.146 <0.010 0.011 0.135 SW-03 03/01/2017 Indian Creek Mid 0.044 0.018 0.021 0.470 <0.010 0.343 0.127 SW-04 03/01/2017 Indian Creek Lower 0.068 0.020 0.024 0.828 <0.010 0.597 _ 0.231 SW-05 01/18/2017 Carson River Paynesville 0.023 <0.010 <0.020 0.199 <0.010 0.059 0.140 02/01/2017 Carson River Paynesville 0.010 <0.010 <0.020 0.184 <0.010 0.025 0.159 03/01/2017 Carson River Paynesville 0.013 0.014 <0.020 0.148 <0.010 0.024 0.124 SW-06 01/18/2017 Carson River Stateline 0.021 <0.010 <0.020 0.224 <0.010 0.083 0.141 02/01/2017 Carson River Stateline 0.018 <0.010 <0.020 0.192 <0.010 0.060 0.132 03/01/2017 Carson River Stateline 0.013 <0.010 <0.020 0.162 <0.010 0.056 0.106 SW-08 03/01/2017 Irrigation Ditch 0.039 0.020 <0.020 0.398 <0.010 <0.010 0.398 Results resported as mg/L except EC as uS/cm Turbidity as NTU . Colifoms as MPN/100mL Temp as C NC=Not counted Page 4 of 8 Alpine County Summary Report BOD Ca Mg Na K SAR %Na HPR 01/18/2017 Harvey Place Reservoir 4.44 14.3 3.46 36.1 8.99 2.22 56.1 02/01/2017 Harvey Place Reservoir 2.94 13.7 3.32 36.6 8.78 2.30 57.4 03/01/2017 Harvey Place Reservoir 2.92 12.3 2.90 29.9 6.99 1.99 55.8 SW-01 01/18/2017 Carson River Woodfords 6.81 1.72 3.22 1.05 0.29 21.6 02/01/2017 Carson River Woodfords 7.43 1.95 3.64 1.10 0.31 22.1 03/01/2017 Carson River Woodfords 8.00 2.01 3.95 1.17 0.32 22.4 SW-02 03/01/2017 Indian Creek Upper 5.77 1.50 4.92 1.27 0.47 32.5 SW-03 03/01/2017 Indian Creek Mid 7.64 2.11 5.84 1.47 0.48 30.0 SW-04 03/01/2017 Indian Creek Lower 9.24 2.66 6.39 1.66 0.48 27.8 SW-05 01/18/2017 Carson River Paynesville 7.17 1.82 3.68 1.20 0.32 22.9 02/01/2017 Carson River Paynesville 7.76 2.04 4.52 1.24 0.37 25.1 03/01/2017 Carson River Paynesville 8.31 2.12 4.64 1.37 0.37 24.4 SW-06 01/18/2017 Carson River Stateline 7.40 1.88 3.77 1.24 0.32 22.8 02/01/2017 Carson River Stateline • 7.88 2.08 4.70 1.27 0.38 25.5 03/01/2017 Carson River Stateline 8.44 2.14 4.79 1.37 0.38 24.8 SW-08 03/01/2017 Irrigation Ditch 7.80 2.14 12.4 2.40 1.01 46.2 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as • NC=Not counted Page 5 of 8 Alpine County Summary Report Total E.Coli Coliform Chromo Chromo ACMW-01AW 01/24/2017 Main Dam 1.0 <1 ACMW-01BE 01/24/2017 Secondary Dam <1 <1 ACMW-02N 01/24/2017 Access Gate <1 <1 N. ACMW-02S 01/24/2017 Access Gate 2.0 <1 ACMW-04W 01/24/2017 Gansberg 1.0 <1 ACMW-06S 01/24/2017 Celio <1 <1 ACMW-07S 02/22/2017 Diamond Valley Ranch <1 <1 ACMW-08N 02/22/2017 Diamond Valley Ranch <1 <1 ACMW-09D 03/07/2017 Diamond Valley Ranch 7.4 <1 ACMW-10 03/07/2017 Diamond Valley Ranch <1 <1 ACMW-11 03/07/2017 Diamond Valley Ranch <1 <1 ACMW-12 02/22/2017 Diamond Valley Ranch <1 <1 ACMW-13 02/22/2017 Diamond Valley Ranch <1 <1 ACMW-14 03/07/2017 Diamond Valley Ranch 4.1 <1 ACMW-15 03/14/2017 Diamond Valley Ranch 1.0 <1 ACMW-16 03/14/2017 Diamond Valley Ranch 14.6 <1 ACMW-17 03/14/2017 Diamond Valley Ranch <1 <1 • ACMW-18 03/14/2017 Diamond Valley Ranch <1 <1 ACMW-19 03/14/2017 Diamond Valley Ranch 2.0 <1 ACMW-20 02/15/2017 Diamond Valley Rd- 4.1 <1 Paynesville ACMW-21 02/15/2017 River Ranch Rd <1 <1 ACMW-22 02/15/2017 Fredericksburg Ln <1 <1 ACMW-25 02/15/2017 Access road between 3.1 <1 Neddenriep&Brooke ranches ACMW-26 02/15/2017 Access road between 172.3 13.4 Neddenriep&Brooke ranches GW-05 03/07/2017 Neddenriep <1 <1 GW-08 03/07/2017 Arant <1 <1 GW-11 02/15/2017 Diamond Valley School <1 <1 GW-17 02/15/2017 Diamond Valley Ranch House <1 <1 Well . HPR 01/18/2017 Harvey Place Reservoir 12240 152.9 02/01/2017 Harvey Place Reservoir 2750 2.0 03/01/2017 Harvey Place Reservoir 275.5 <1 SW-01 01/18/2017 Carson River Woodfords 116.0 2.0 02/01/2017 Carson River Woodfords 82.0 1.0 03/01/2017 Carson River Woodfords 45.7 1.0 SW-02 03/01/2017 Indian Creek Upper 77.1 ,7.4 Results resported as mg/L except • EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as C NC=Not counted Page 6 of 8 Alpine County Summary Report Total E.Coll Coliform Chromo Chromo SW-03 03/01/2017 Indian Creek Mid 105.0 <1 SW-04 03/01/2017 Indian Creek Lower 248.1 <1 SW-05 01/18/2017 Carson River Paynesville 98.1 19.5 02/01/2017 Carson River Paynesville 125.9 3.1 03/01/2017 Carson River Paynesville 59.1 <1 SW-06 01/18/2017 Carson River Stateline 137.6 5.2 02/01/2017 Carson River Stateline 83.6 2.0 03/01/2017 Carson River Stateline 39.3 <1 SW-08 03/01/2017 Irrigation Ditch 1046.2 18.7 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as C NC=Not counted Page 7 of 8 Alpine County Summary Report Colonies Colonies Filaments Filaments Filaments Filament Single # #Cells #Multi- #Cells #Single- Length Cells Celled Celled HPR 01/18/2017 Harvey Place Reservoir 0 0 0 0 0 0 0 02/01/2017 Harvey Place Reservoir 0 0 0 0 0 0 0 03/01/2017 Harvey Place Reservoir 0 0 0 0 0 0 0 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL — Temp as C NC=Not counted Page 8 of 8 Page 1 of 1 Monitoring Wells Groundwater Elevation Sample Depth Ref GW Site Location Date Hr ID# to GW MSL MSL ACMW-01AW Main Dam 01/24/2017 13:25 AG54603 5.39 5493.13 5,487.74 ACMW-01BE Secondary Dam 01/24/2017 12:59 AG54604 3.25 5503.55 5,500.30 ACMW-02N Access Gate 01/24/2017 12:28 AG54605 6.03 5469.70 5,463.67 ACMW-02S Access Gate 01/24/2017 12:11 AG54606 4.53 5471.60 5,467.07 ACMW-04W Gansberg 01/24/2017 10:12 AG54607 14.24 4919.89 4,905.65 ACMW-06S Celio 01/24/2017 11:08 AG54608 14.39 5223.50 5,209.11 ACMW-07S Diamond Valley Ranch 02/22/2017 10:59 AG54975 59.94 5574.39 5,514.45 ACMW-08N Diamond Valley Ranch 02/22/2017 12:21 AG54976 2.78 5464.45 5,461.67 ACMW-09D Diamond Valley Ranch 03/07/2017 12:07 AG55130 19.20 5510.56 5,491.36 ACMW-10 Diamond Valley Ranch 03/07/2017 12:39 AG55131 20.22 5534.19 5,513.97 ACMW-11 Diamond Valley Ranch 03/07/2017 11:36 AG55132 12.49 5503.01 5,490.52 ACMW-12 Diamond Valley Ranch 02/22/2017 11:42 AG54977 21.93 5525.04 5,503.11 ACMW-13 Diamond Valley Ranch 02/22/2017 12:52 AG54978 5.72 5554.55 5,548.83 ACMW-14 Diamond Valley Ranch 03/07/2017 10:27 AG55133 13.71 5547.20 5,533.49 ACMW-15 Diamond Valley Ranch 03/14/2017 10:19 AG55240 13.45 5500.60 5,487.15 ACMW-16 Diamond Valley Ranch 03/14/2017 10:48 AG55241 8.78 5484.53 5,475.75 ACMW-17 Diamond Valley Ranch 03/14/2017 11:18 AG55242 5.52 5504.92 5,499.40 ACMW-18 Diamond Valley Ranch 03/14/2017 12:05 AG55243 6.00 5470.56 5,464.56 ACMW-19 Diamond Valley Ranch 03/14/2017 12:44 AG55244 6.58 5417.25 5,410.67 ACMW-20 Diamond Valley Rd-Paynesville 02/15/2017 10:18 AG54903 7.00 5090.30 5,083.30 ACMW-21 River Ranch Rd 02/15/2017 10:46 AG54904 13.79 5011.33 4,997.54 ACMW-22 Fredericksburg Ln 02/15/2017 11:12 AG54905 21.58 5019.28 4,997.70 ACMW-25 Access road between Neddenriep& 02/15/2017 11:51 AG54906 6.07 4942.24 4,936.17 Brooke ranches ACMW-26 Access road between Neddenriep& 02/15/2017 12:15 AG54907 5.44 4895.60 4,890.16 Brooke ranches CONTROL East side near Post Office 01/26/2017 14:45 AG54641 66.58 6345.20 6,278.62 MW01_5 SW corner of ERB 01/26/2017 11:06 AG54642 60.06 6328.00 6,267.94. MW02-50 South side of ERB Pond 01/26/2017 09:50 AG54643 47.86 6314.60 6,266.74 MW03-50 Southwest comer of ERB Pond 01/26/2017 10:12 AG54644 42.24 6310.10 6,267.86 MW04-50 Hank Monk side of ERB 01/26/2017 13:34 AG54645 51.00 6304.40 6,253.40 MW07-50 North side of ERB Pond 01/31/2017 11:12 AG54715 24.68 6302.20 6,277.52 MW08-25 South of Pond 1 01/26/2017 11:27 AG54647 10.58 6258.30 6,247.72 MW11 North of Biosolids building 01/26/2017 10:50 AG54648 36.77 6296.00 6,259.23 MW12 South of Biosolids Building 01/31/2017 12:25 AG54716 27.48 6288.80 6,261.32 MW13 South of Pond 2 along HVC 01/26/2017 14:08 AG54650 5.32 6263.40 6,258.08 Alpine County Soils pH EC %Sat TKN NO3-N Total P Exch P SO4 CI S2A Celio Ranch 02/28/2017 7.96 6.33 78.5 3670 0.828 365 11.4 475 1220 S3A Bently Ranch 02/28/2017 6.68 0.365 33.3 1420 8.12 242 19.3 31 14.8 S4A Gansberg Ranch 02/28/2017 6.48 0.478 40.8 2350 10.3 181 12.4 33 11.7 S5A Gansberg Ranch 02/28/2017 6.03 0.394 32.3 1850 12.5 489 13.2 29 14.7 S6A Neddenriep Ranch 02/28/2017 6.81 0.674 44.3 2250 24.6 183 15.6 28 7.21 S7A Bruns Ranch 02/28/2017 5.97 0.383 47.1 2970 15.0 304 17.2 36 7.77 CEC Cu Mo K Ca Mg Na SAR %Na S2A Celio Ranch 02/28/2017 31.6 8.2 0.08 1628 278 318 646 6.28 7.26 S3A Bently Ranch 02/28/2017 10.4 7.6 0.09 1064 29.9 6.02 18.2 0.79 <1 S4A Gansberg Ranch 02/28/2017 16.1 12.5 0.07 4224 36.6 7.77 34.6 1.35 <1 S5A Gansberg Ranch 02/28/2017 11.2 13.5 0.09 2521 33.6 6.47 26.6 1.10 <1 S6A Neddenriep Ranch 02/28/2017 14.9 14.2 0.09 2663 84.4 11.8 15.5 0.42 <1 S7A Bruns Ranch 02/28/2017 14.2 17.5 0.08 5136 33.1 7.55 10.8 0.44 <1 n Page 1 of 1 Sample Comments Site Date Time Comments ACMW-23 02/15/2017 00:00 Inaccessable. Road impassable due to storms ACMW-24 02/15/2017 00:00 Inaccessable. Road impassable due to storms ACMW-25 02/15/2017 11:51 pH done in Lab ACMW-26 02/15/2017 12:15 pH done in Lab CONTROL 01/26/2017 14:45 Had to use snow cat to access sample site. ERB 01/20/2017 11:13 Return comprised of Final eff and snow melt GW-11 02/15/2017 12:50 pH done in Lab GW-17 02/15/2017 13:05 pH done in Lab HVC-3 01/26/2017 15:33 Frozen Solid HVC-5 01/05/2017 14:14 No flow. Sample site covered in ice and snow. HVC-5 01/07/2017 13:45 Raining but no flow. Some standing water. Mostly snow in ditch. HVC-5 01/07/2017 17:00 Raining but no flow. Some standing water. Mostly snow in ditch. HVC-5 01/08/2017 07:21 Rain total for day=3.99 inch. Rain total at time of sample collection = 1.81 inch HVC-5 01/19/2017 08:45 Snowing. Yesterday, 01/18/2017, it was raining and snowing. Today I dug down through —3 feet of snow to ground,which was moiste. No evidence of flowing water from yesterday.T Powers HVC-5 01/26/2017 15:21 Dry; covered in snow HVC-5 02/03/2017 12:30 Rain and Snow; no flow to creek HVC-5 02/07/2017 07:50 Needed to dig down through 3 feet of snow to ditch. Water was running down road into creek because the culvert was plugged. Plug was just recently cleared. Sample discarded before Total N analyzed. HVC-5 02/23/2017 11:20 No flow HVC-5 03/28/2017 08:54 Standing water; No flow MW04-50 01/26/2017 13:34 Pulled well to measure depth. Well dry. Had to use snow cat to access sample site. MW07-50 01/26/2017 00:00 Unable to locate well under snow. Had to use snow cat to access sample site. MW07-50 01/31/2017 11:12 Lab pH =4.79. Sample pumped using CO2, probable cause of low pH. Too much snow to drive to sample. Had to access site on snow shoes, dragging sled. MW12 01/26/2017 00:00 Unable to locate under snow SW-07 03/01/2017 12:20 Ditch dry. 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: oi-.zb-.(7 .. - EMERGENCY POND MW FIELD MONITORING RECORD Samplers: IL,,,,, Purpose: ../ old 06<.Z�il-- Preservative Std Check Depth to Well Water Calc Actual Well Casing Depth to Column Water to Water m Temp EC Bottom Diameter GW Height Purge Purged U •— ou) O Site ID# Time 'C pH pS/cm ft inch ft ft Gallons Gallons ° n = = O .H EC COMMENTS P,t, .CONTROL 8.�INLi LA5 80.90 l/(,,, s, \ '7)�. 11111111.I-Lb 3.5" rft. 65.80 --..-- lln , �,� 113 �;_zz,. _3. I k_,-;�� - �� MW02-50 AGS."� — flit-`D g 5 , 1fi 3[e' 50.90 ..-Nti :5.U-1 G.5)-• 2,1... MW03-50 .. .,,. III LA 50.80 2 42:2A t'; ,,--z III ,', 11111111111111 AG546.0 ti‘.\\V':( ul' ' a'-' 51.00 2 AG54646 11111111 MW07-50 52.60 2 MW08-25 117,1 $,3 5,i t- L97 20.60 2 1,6,,s- mV. 0-1 4.� MW11 AG563 y,� 41.0 2 9 : MW12 AG5�dr,C 4 _ 31.50 2 , MW13 A4y j' 14.40 2 •4,,k45*:kfigA 6;i:::, , ,,_,,v, ,1,04 Trip Blank �4� . Iv�a\ Groundwater samples shall be collected only after a 1 well volumes Gallons to flush= 1 x 7.48 x 3.14 x 0.0832 x water column height pH Std Check uses a 7.00 buffer.pH meter must be re- have been flushed and Temperature,pH,and EC measurements Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EC Std Check have stabilized to approximately±5%for each successive Water column height=depth of well-water level uses a 200 pS/cm standard measurement taken in intervals>_5 minutes. for 50'well whose water level is 35 feet from ground level: Water column height=50'-35'=15' File:D:\Lab\Forms\Field Sheets\Field ERB.doc 11/8/2012 Flushing Record Date: (.) Z -/7 , • emp Minutes Gallons °C - pH pS *4' .;;-= = ommen s - ' 11, 7 •c, .53 5C`.1 Hu) 771 11)C1,_ • 1i)05. ;LI le".5 1 •397 /t) . 3 481 j\-k1):2) D i 5-IL \ \ t-I Dt, ,s" 9.), 7:66 1/3 " 1t ) _ . VUIL' 1 'g 5,1rg ' 2L1 1.131,t\ I LI3.2 4'16 '2/6 to-11 J5-\HLI.S •. • -• • • ,• Note:Temp,pH,EC must stabilize t 5%for successive measurements taken in intervals 1-5 minutes. ):1LablForms\Field Sheets1Monitor_Well_Flushing_Rec,ord.doc SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: 01-A-It EMERGENCY POND MW FIELD MONITORING RECORD Samplers: 'w�ihc-1A Purpose: ,®t-2.b•14 Preservative Std Check Depth to Well Water Calc Actual Well Casing Depth to Column Water to Water a2 Temp EC Bottom Diameter GW Height Purge Purged U •— O)O0 < Site • ID# Time C pH pS/cm ft inch ft ft Gallons Gallonsn = = O pH EC COMMENTS CONTROL 80.90 2 MW1 .5 65.80 2 MW02-50 50.90 2 MW03-50 50.80 2 MW04-50 51.00 2 MW07-50 52.60 2 MW08-25 20.60 2 GS Weil ayy @ h MW11 (05(1 %.4 1,: 4 M 41.0 2 _ flu, x.1'7 C. L 1,`� wa��ea 50,fuLA ttG5469 MW12 31.50 2 A6546,50 Wog' c• 0 'I'll y03 14.40 2 S 3� 1, 0 Lc J MW13 0 tot A,, Ag-,„,?1,. }"+4. E}t, a .; ,,� Trip Blank v / E . r y j aw c0 f b1, Y;' 2.+YS�«°Y,•�, A�4'Ke r,Yf ..,:tkIti J�i� �"J.4':Ti:, Groundwater samples shall be collected only after>_1 well volumes Gallons to flush=1 x7.48 x 3.14 x 0.0832 x water column height pH Std Check uses a 7.00 buffer.pH meter must be re- have been flushed and Temperature,pH,and EC measurements Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EC Std Check have stabilized to approximately±5%for each successive Water column height=depth of well-water level uses a 200 pS/cm standard measurement taken in intervals>_5 minutes. for 50'well whose water level is 35 feet from ground level: Water column height=50'-35=15' File:D:\Lab\Forms\Field Sheets\Field ERB.doc 11/8/2012 J v9,k a -_s . h 7hb $ `12 1 g'I ��Q1 �.I \1MNN • SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: l^/- J'• - • •i K ./ EMERGENCY POND MW FIELD MONITORING RECORD Samplers: • .'C Purpose: V ! Preservative Std Check ' Depth to Well Water Calc Actual Well Casing Depth to Column Water to Water a) Temp EC Bottom Diameter GW Height Purge Purged o —1 O d Site ID# Time 'C pH pS/cm ft inch ft ft Gallons Gallons . n = _ pH EC COMMENTS , CONTROL 80.90 2 - MW1.5 65.80 2 MW02-50 50.90 2 MW03-50 50.80 2 MW04-50 51.00 2 j ilk 6 1 ` •i 1,) 52.60 2 �2 ,tog-L��'\t y-15 /0 e a -�C� Lt it MW08-25 ,. 20.60 2 MW11 41.0 2 MW12 ,�.i v -_. RG) t.77,K 1 l,,`I 1 1227.3 31.50 2 Z,7,4ig q.oz. 0_o? .Ls , MW13 14.40 2 kittA Trip Blank .as3 "l P:4vas I, 4riWi k: '+� a :,.'",4z.; Groundwater samples shall be collected only after z 1 well volumes Gallons to flush=1 x 7.48 x 3.14 x 0.0832 x water column height pH Std Check uses a 7.00 buffer.pH meter must be re- have been flushed and Temperature,pH,and.EC measurements Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EC Std Check have stabilized to approximately±5%for each successive Water column height=depth of well-water level uses a 200 pS/cm standard measurement taken in intervals>5 minutes. for 50'well whose water level is 35 feet from ground level: Water column height=50'-35'=15' tC ) �C( ( e:(01/- COL . /I-V 0 v ,r/ _ - , ,, , ,e-1,File:DLab\Forms\Field Sheets\Field ERB.doc 11/8/2012 • Flushing Record Date: Temp EC Minutes Gallons °C pH NS Well . Time Flushed, Flushed, +5%., ,F±5% ±":5% Sampler • Comments i kii)u1- ti i\ .c .1‘. 2__ y. 1. L (10 ltt� _ LI. 7 2 �z� - ( _ ll q ` ! zzn, iotti u + d fzg • °i,./.. GJ • 5 _ Note:Temp,pH,EC must stabilize t 5%for successive measurements taken in intervals>_5 minutes. :1LablFormstField Sheets\Monitor Well Flushing_Record.don SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: {v- i'r dt ACMW FIELD MONITORING RECORD Samplers: Ktiim TT tot Purpose: d ctk 01'11"Vt Preservative Std Check Depth to Well Water Calc Actual , Depth Well Casing Column Water to Water to GW Temp EC Bottom Diameter Height Purge I Purged o = H2SO4 o a Site ID# Time ft °C pH pS/cm ft inch ft Gallons Gallons v an pH= = o pH EC COMMENTS i I ACMW-01 AW4.�5 ,. 14 22.6 2 � , c 11.5 53`i cl.S- (rt.14 10•0j1,2.\ 1.5% 4.0 IA, ,/ Tir e. ACMW-01 BE 125xi .b5t.o 6,00 l20 23.8 2 'ZC•5� j.a II•5" / / Up 7 ACMW-02N �a fa Ult (ii•� ia9 VUO lAci 34.1 2 2 ,14 '0.1 id / ✓Lb ACMW-02S 12�� 4.5'J q � 5y� lli 21.9 2 I�;�:� �S. 5.Q / r i,b t/ ACMW-04W 1011. VI.Q' ill 2k 2l0 29.0 2 ' ... ; 2.T, 1\ ,o i 7 [ Io ✓ bplvka\1,1IIto r' ACMW-06S 110I (4.31 0_ . 12,50 UIb' 29.9 2 14,E I 2'i-t 41.0 / 7 VD ( _Sal/ a(a WI zw t.t.w\lo Trip Blank Temperature of Control when samples received , at Lab �ti nl a 1 well volumes Gallons to flush=1 x 7.48 x3.14 x 0.0832 x water column heightpH FStd Check uses a 7.00 buffer.pH meter must be Groundwater samples shall be collected o � 9 re- have been flushed and Temperature,pH,and EC measurements Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EC Std Check have stabilized to approximately±5%for each successive Water column height=depth of well-water level uses a 200 pS/cm standard measurement taken in intervals z 5 minutes. for 50'well whose water level is 35 feet from ground level: Water column height=50'-35'=15' D:\LAB\FORMS\Field Sheets\Field ACMW.doc 1/22/2016 Flushing Record Date: '��t• - I _ Temp a EC sMinutes Gallons Well ftme Flushed;: -'Flushed +5% t ±5%' ±S%_s - 'Sampler: ;: Comments 1 ',V. ) V� I !. I 0. .1t C>LL�t) Ol�s l 013 1 �`k t;,ci 'VW!" 01 5 1200 - 12()5 t.0 .5 c.9-L-- 12_ -L-- t� Eit°M} - 021 12 12-n— z.5 1\.=. / -2 iso' !0Z- 114 /2,-2i, 1,1 cvt f\CiVi4 E • i'ut`b 5 t 3,11 iTh r?S 5 ) .r),Sri tit 1(:s- Lt) - Lc0 I ACM\K1 - tats Wt• . t,l..o Z.t .} - 64. 1 55. j II5 4,0 IS b,j4 • Note:Temp,pH,EC must stabilize±5%for successive measurements taken in intervals 5 minutes. ):\Lab\Forms\Field Sheets\Monitor Well_Flushing_Record.doc SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: —"" ' ' FIELD MONITORING RECORD Samplers: 8 c/t-t9 , b ^ fn3 ,;-: �' 7 !/ r Purpose: i r 0- . (� U!J ��4 /l i, , - PI Preservative Std Check I: Temp EC DO CIZ �6 U a� O, O Site ID# Time °C pH uS/cm mg/L mg/L w � V� ' O ,. u) _ _ > pH EC Comments / %� �� C J �' AG%x 9/. (U7 I 1 6- 2 6.I S (��' C41.9/0°.. ." �,1 I �� J`�� r/v /O )L�1SI AG547?1 jp- i /0.� ,, 1S// c{ �4 4 J� , LO (fv ✓ 2 - ( "- A&549 ': ((r()- W. (' 6,6 (K 1 ;1, 73,.3 _� , 7 /°5)/al' AGS - , 1,> -Pc 10"-(il i'r\) — ii 3 rl O il ' lz� 1� - 19 3 a . • h 0C In'' t u j T FY H t k .k ,-sx m F , tP' b, rp, a , Temperature of Control when x ,S v ,: y � k �,A' '-~'' ":f samples received at Lab, °C y, o . , zt -A 1 a • !. �, � � z ,;F.:1!.,lo f a ..... /gni 1`,`ti '` � '� rt`,'n s m.s �-€.o mss', '-i d +ee°'2.e ` ,4Ea z�c ,s c:. a �+ :'n r, t �� f�:� „..<'2,-,_•47 .,f•...4,e.,.s„"r',. ;. � :!';,.m� �'.�� I�k,�i,'k;`' ¢�,�.'.��" 'V� 4.�� „$.�i+'4mftw�v s'cs .s�s,.g'''`,,-5:;_,,r Note: pH Std Check uses a 7.00 buffer.pH meter must be re-standardized if rest.It exceeds 7.00±0.05.EC Std Check uses a 200 pS/cm standard. D:ILab\Forms\Field Sheets\Field.doc G 12/01/1 B e . . , ....••' ,..-., . . i b •‘.2) I0 I . c, . I 1,, '3- . ,..- -b hti . , . Ltl 0 -44 16 ---'. f-- (v1 44 7, . 9Z- , 1 S I 911t 1 _S t,-', ' 9 '9 1 • )1 t 1. i , !, 1 1/__I, '3 „L.), t9.4-C iN 9., (7 -. •-7 N AA/- i 1 / 2 .cl, ) __`: cl 711 11)11 i . 2 ) ) r....‘L oi ,..__.,_ -i 87 / Lc ' , . .P>)c- ' .77 1 An I — 1 • i --) .0/). .........31.•r_q 1.1 17 L.: ..-:,c- • - 1 h CI i _a_si,,,r. .,• nj f,- ‘ ; .,„.../ . , 0 ; 1 -.7.,„ 4.ct \-4 , .., . . ',-,t. ." 7) 1 , i /. ..,.---': \ ,..,,, , ) 1 0 -h c- cY() j)00! rls ,...... , • . . ,. , _ i., .„, ., .. . , ,............,-- • 1 i - 7) ) 71 7 1 i A -F- Group 4 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: (3.4'1-- tl- ACMW FIELD MONITORING RECORD ;(1 Samplers: Ta tit) 0 piN lckly\,k Purpose: Preservative Std Check Depth to Well Water Calc Actual Depth Well Casing Column Water to Water a, to GW Temp EC Bottom Diameter Height Purge Purged o ' H2SO4 z o Site ID# Time ft °C pH pS/cm ft Inch ft Gallons Gallons Zr pH= x > pH EC COMMENTS lq-2) Zsi t(.fO ACMW-09D izoi -,-VA-1 1zto b.SS it2 45.1 2 -3-01 5-1- i.b \/ G5! . ACMW-10 ini 14.2i, tUl I0,1L 1E1. 38.5 2 1t,'1..i5 .3,11 1. , AG55132. ACMW-11 ik3L ILIA s.2 (=52 '1'0 33.5 221.01 35 i i ACMW-14 ml H.tl q ,' 10.6 I` o 3" 2 11x,21 2,�} I.L f G55'1 34 GW-05 '1110 li L.(4 ii(02l� l. GW-08 A,:E. 014.5 12.E 452 344 i (u v Trip Blank s !` . . DrA t ., Temperature of Control � ht'a' ;� r ) when samples received LI.L, 7, at Lab Minimum gallons to flush=1 x 7.48 x 3.14 x 0.0832 x water column height pH Std Check uses a 7.00 buffer.pH meter must be re- Groundwater samples shall be collected only after 2 1 well volumes Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EC Std Check have been flushed and Temperature,pH,and EC measurements Water column height=depth of well-water level • uses a 200 pS/cm standard have stabilized to approximately±5%for each successive for 50'well whose water level is 35 feet from ground level: measurement taken in intervals z 5 minutes. Water column height=50'-35'=15' 1/22/2016 D:\Lab\FormslField Sheels\Field ACMW-Group_4.doc Flushing Record Date: - WOMVITiM4470 JVIN.WRY-e• t ,crPci,4‘4.aerTzi "ft Wf-A3 1•4e;17-Wik'',1 ,pog-,v4 ri MEM 1011111111111311 1122 D Inn 1At ' t tiLl ••g•,, to,549 q4\2) MEM q iA57 t') 2.0 bio..5.14. 111. fkcitAW (22'6 • • 0°1 11.1 111111111 , . Note:Temp,pH,EC must stabilize±5%for successive measurements taken in intervals?5 minutes. DALab1FormsTield Sheets1Monitor Well Flushing Rprnrrl dr, Group 5 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: U > ' / 1 - I ACMW FIELD MONITORING RECORD t Samplers: 8 c.f ( 0(4 01- (9- (e Purpose: = ! Preservative Std Check Depth to Well Water Calc Actual c Depth Well Casing Column Water to Water 0 49 to GW Temp EC Bottom Diameter Height Purge Purged o IHZSO4 z oQ Site ID# Time ft °C. pH pS/cm ft Inch ft Gallons Gallons v rn pH= i > pH EC COMMENTS ACMW-15 PfiO3, � , 5� 29.5 2 ( .O 3 30 / t, t, / )I 9 ACMW-16 � :, f / 73 .3.-5,--'6,/$ (z( 29 y // .0 2 ACMW-17 6.4.---24944P, / ( , v� f 11 l� 5�5� ITI;3 6, )-6 Q4': S 30.0 2 2`(-) ) / / it ACMW-18 �`Li:,'',:i‘4, h0� �, (D 6, 11 1) �--- 28.0 2 �� / Ir,4 7 / ACMW-19 Gc. f°'Ji / // 6,s? (o- 7.27- (.6 S 20.0 2 r5`I 2-C i3 J /-1 - 1 TripBlank � f f f, _: (,6. °C Initia �, #1 i?i + - n __ .s .' ti . .:lli iM n ,':i:4 rzxt o.r 4,J'w g„ ,•"S^ ..r.=,.: p,.., .G,Y.^:..:'y.. .r',-, .f•w°.y o '-g •• z:., ,s' c,. .. r woo Temperature of Control k� � r< ...� �_ ;�. � ...: r ��: larw,..,�,� , �.b �. �. .,r _ � ,� ;�,�4.. ;�;,� r� Y tear. � }� Y"� � .u.,.i n#�..... f k. :i. fln'fi�n.�.-:�a�". ,�^>- „ �.,e 4�, -im �f. .�'�.,s�"..L^ '�-;�i��. � .e,�,7,c Fag t�h'.. w, _`.},...`� Wit ..•-rcr,4. i ..,,''rs,,: n.,,,+ -h,5�. .. .a s i ^x^iii.�, ,.:y ... 7 :�.i - v::.. . ��^�:,. a 3. e u'l f+: -S�t';kwa..YJ , ,, ,,,,.,.. a �... ,,.r, <<.,y a xn.,,?r N..?:: r r. tg a& .. .. ' ,. ,,, > .fir; i t A. ;,er. t. ,. ..,.,kx -- �vnmcOpvti,,I,44e, .,"� �^. ,., r l'S. �.+., .. .4 J'�.i y- � ...,� .:.�. •+.' �'{;� "�.�r- 'fig ...+�.'�. v ,- � '� :.�.) «-s...Jia' a�:�+ :;<• ;i°;Y J.,,..� 3Y,. ..m.,a."sn,.SC,:a^', { .,�`i'a�. ..cz�s. y^r.,�'4..... y k..d x ,; ",�, Via.. 4.ra... �F ,�u"�'l„7 i. W'' . �,5.. .,r,y. `x k_':. R, ' .,., � .c?, iwhen sam les received � ..,.:,. , � �: ,rR�°� �.. � =s,,..,. �a,. ,� �� '� , _.;,�, � `,° > � >$>�.,� . . . ,:;.� ,:;: .�.�, >~ .�a�,: :�:��.,..,.p 4 �• 3;. ra, ,fir. °..At, .. .y fa',;."� v, � ,�,i ,k,r , .• ar,,;0 i',n : V ,,<< «a;:i ;x; ir't 'ca4• sy'' ,.,;x ' - .ya'„, y .7„,,.x{�'ry3.: A.yal�ky��*�a��r�,t�wA . .�,rt�t s,., .�.1.��x,�.. d:�?++a , 2�r »��'� r 72., ,�A%� Pkh � �. c, Y?T,_ y _3�' n;� {� ''�”'gc d , .,,, ,�a .4v.:y',' ', ,,,'”.R °`. 'r. $ �- .�!,,, �''°•i h i,k,4 t.... �t I. .1 x4 i`.�t y h ` �d.,''' YiM 4 (,' '.' ,,, R,,at Lab �/I1y�.QII Y i L ,3 iv¢ �;yt�,".. 7 .k�1 � 3 r 008 a7,.{ yt.s.,n f df xd F, : t 1 .�� F � y � ^ ,\ 1 ...,,,A,k0, W.l'�iT S-Ju.e '44 F'^=',1�% � y:'&'-. �;k,fi A 't'..J'4 8' Ib .9 i'g:'- I!, s,. rW .4�,y,lf, ��.,:'Y❑ ' '.' k .;IP . ', 1t '• 'Jf Minimum gallons to flush=1 x 7.48 x 3.14 x 0.083 x water column height pH Std Check uses a 7.00 buffer.pH meter must be re- Groundwater samples shall be collected only after z 1 well volumes Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EC Std Check have been flushed and Temperature,pH,and EC measurements Water column height=depth of well-water level uses a 200 pS/cm standard have stabilized to approximately±5%for each successive for 50'well whose water level is 35 feet from ground level: measurement taken in intervals>_5 minutes. Water column height=50'-35'=15' n 11 ok1rnerriclCi.lr4 Cheet ICielrl Ar`KA1A1_!_rnnn c.in, Flushing Record Date: • 1( I , Minutes Gallons Well - !-Time Flushed Flushed ±5610,7% Sampler -:Comments': Pr(. 615 kl-C) 77.) BL,1 LP-Pc 09' 7d p14- 1Dill It (p„63 /-C7 ‘1 , f-t,(4(ibyit-f--(ct p toiq 30 ( •• `' • Nceqw 3 6,63 itri tat e itI3 g 6 toig 13, 16 01 1111- 5-1-66-re wc_ AC ) -V) pa % -1 (1. 14 6.41 1113 6, iy Sb,3 flJ( 1 sa- 613 6)540 16}5 hOuw 11)-C ,cAt 10.11 h95-i-ctftp//s t?c 7 RD tat 7c ) 111) tlos It n 16,3 (,.5C1 112 TACckiu,i- 11,1({ 7__ Z.c 10 { 7,(Ca i 11S9 10-y 1Z3 12,(1\ 101 171 1(05' Note:Temp, EC must stabilize±5%for successive measurements taken in intervals 2 5 minutes. ):\Lab\Forms\Field Sheets\Monitor Well_Flushing_Record doc Group 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: 02-15'H. ' ACMW FIELD MONITORING RECORD Samplers: NUM Purpose: . tU b'l1bl6•i1 PreservativeStd Check Depth to Well Water Calc Actual — - Depth Well Casing Column Water to Water al to GW Temp EC Bottom Diameter Height Purge Purged o -- HZ , o SOa Site ID# Time ft °C pH pS/cm ft Inch ft ft Gallons pH= _ > •H EC COMMENTS AGS'9O3 , ACMW-20 ' � 'IA , j 21.5 24 ' ✓ 1.L / On Diamond Valle Rd near SW-05 f i'i'a,," ACMW-21 AGS �. L4� ,�, 1� loco famo `L{,t 30.0 2 t(..21 2L c/ ,/ I.6 I On River Ranch Rd,East side of Hwy 88 ACMW-22 �rGS�.9 C.s%� 11 Zig p� 59.5 . Ff (l (7, Zt �� c:`� ]� 2 c`� t�J ,/ . IL / On Fredericksbur•Lane,near S7 ACMW-23 50.0 2 �i4,� U•stream of W-15 �LL��±f-;: ...; InactiGSS i 6 l ACMW-24 50.0 2 DooYn3trer194ammof -15 s,a qM-7 F �"� ACMW-21J It�5 (I Q v,0 - �� -- i82- 30.0 2 i. 4cO1- ✓ ,rhI Behindetwe:nriep'sonWestsideLane; dirt rd between Hwy 88 and Carson River AG5490 ACMW-26 __- 17,K IM 4 a — Zit 30.0 2 2 i.3 i,It On Westside Lane @ Stateline Trip Blank Ar56 All/i• GW" 12a) ,I — IAA / j-, Ar549,.,, 121 _ la, �" i� 13 l L "-Q nitia „,,,7,,,„0,,-;.. }../y t ti * o y.< F y.rp.-., d 1Y 7.: ii „,,.i_ri s:4 Y 5 !t , Cz,l v "> . Arg' ” a f-,.'!ii-:: w X:',00 Temperature of Control � , a a:s� e._ �� ' � � :.�° , �{{,. �.+ s ] � �, � . a {,� � �., ,1�:�. 4}j•.:.n� z �-1•�4 ,u f + .,; 'w ^n�` din 14) a+' � F 3 .k( t""�. II � O S tt,,;;yy .... > .:.5, ," :, vcr „,,'-',:;k71");'4t1 .;'.4. r :4.Wc1 ft x,O rI a5, , 1w.;.-�. $. '''-T ..r;X4 1,t ,01-0:tit .:A lti :j'7?°„ d �y' r nh . .,,„.,,,,,,,,,,,,,;,:d t ..:1 s r k ._,t,„:,,„..,„,,,,a Wy( '�,,1t .kc. ,��"'d c.r. .,1u,a .4414,A ,'r ,, ,, ?` ...+.;, rt. j ,V, i..! ,,�! ,..1„,„,,„,,. v�;s�t s2. .,.,; �G ��... :., �-,. li n :� , :, 'S�',.s. ! "� ...<<. J e r.?r ,i',`;-,N lt l -fr.,�, �. 't-: x,,. .•�_. � .r t,. when samples received .�� , �t�,. �, y .,, ,> .r �: Y, r, ,� ..„w > .,. +.._.! �'(4:� . a,,IA , � 5 �finF,� � {. ,-.LI� mY•n N.4. �rn '''•� i Y «�S.. 7�e r ,�.•�:. .0%. 1 r-,,,.. v1.0' �..:-tsr ; c. r .4';.t1 .. .-..- '' t,, C Ar' Ry.ml c:� ..„1,.'aiP -st.,..r_ ,y... ,:.` ,�7., :I ,.,a ;",'`3 c ',r++ ..- i'i t,-,. -- .1, 3` ,,. ,,:�� , n ,. ,4 i , x .t .x c„ c.,3,y i ..,.. .,t•. .;fii4. i L.. ,rev:,9:,,. r,. ...y.: ; ti�.71 'P{y.,..y;�.,,:. 9 ^� .-, '.1.. �,1r'� ��• ., r e ..,, �. ,r-e ... y ..�,`� �* .:�� .f �v r �1,�pt 't 'hfi:rL..I_ a� .n.� .r ,,,,t�..-t J'd•.Yx ,... d :..:1..[p v u_ ;�t.r:^.3,? ,l S�-� - # :.,•,:. tr_�; a ;;,*. "j r.r1:tti�,�:, .,aK .t . :rr,,,t.t ,c ”`"{at Lab .`ll lA� S'�. ^y 4 „,p s ,.,k,`:, 4t �(,«,., -[,E�,�i ui�.✓^ v ;7,i e �4�,•..ii $ .�yy�Y�eV.` idu y= ��' . k `y$`:; i k,w r "a � �1"•;..a'�i.,�' .y�,.� ��r,,;,t;,.y '>'t ,fM 1=Ur.n all ,.W :"i. ;;3'lb: 54 t, (. .1! 4 ' ,.��711. : :. i gke 3..YgUi.. ,.>> 1i`' s,: •:e A Mf.k.. - YN-.t'g 7'f;* iz j 1 ,v .M`,t 5 y 'a ,� nr" .r',,,:�'ti.-�. ,<t. .. n�.�.... � .,. �,.:� s'�;r.[e: +€iM�:N..n 'Gf .4�t'` .n>,,:,.{, k�,,3 r, ��,r,�.�• �` S•>t.� H _,,.,,� , �:� ! � . .,v ?� �a&� kt a �,�.u1'n' :045.101b,.* Gallons to flush=1 x 7 48 x 3.14 x 0.0832 x water column height pH Std Check uses a 7.00 buffer pH meter must be re- Groundwater samples shall be collected only after z 1 well volumes Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EC Std Check have been flushed and Temperature,pH,and EC measurements Water column height=depth of well-water level uses a 200 pS/cm standard have stabilized to approximately±5%for each successive for 50'well whose water level is 35 feet from ground level: measurement taken in intervals Z 5 minutes. Water column height=50'-35'=15' n•u=MFnrmMLiolrl Rhonlel Ficlrl ArM1AIAr1 In 9r.rine •u7onn IR • • Flushing Record Date: - ' 6w4iNi41g4r;5;15wKI1-V4V4W M60t4fitv.u"w.ikaiAlliwMziwVi*wg-4eWgef-Z.g3tTeixfil,T lo04'e-typgtWeI TAaudieioFmt6t4tiftSampler' N ktg4,,,,wmmowotkeoregwOojkoouw-Aatteeoimmw 'MfAtziCoiti1*66f6tiVtli 1\4164 1C13 J.5 0 ID ( CAD LA I t2 \ • 1\44 10,b Li) tik-1 tOlo ( 1•0 Prt t\cfikw. 2 110- 5 121 MI 12.1 A\I. 1 ' 12.0 51-6 12.0 ACIAW i141 • ‘ro, kp M D Cl - 1110 /A 116 15. A, • _. Note:Temp,pH,EC must stabilize±5%for successive measurements taken in intervals 25 minutes. ):\LabForni5\FIeld Sheets1Monitor Wellflushing_Recordxfoc