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Reclamation Permit Monitoring Report 2017 2nd Quarter �et • 1950 . water South V • Fublic Utility District 1275 Meadow Crest Drive•South Lake Tahoe•CA 96150-7401 I'hone 530 544-6474•Fax 530 541-0614•www.stpud.us August 1, 2017 Patty Kouyoumdjian California Regional Water Quality Control Board - Lahontan Region 2501 Lake Tahoe Boulevard South Lake Tahoe, CA 96150 RB6-LahontanCa�waterboards.ca.gov Subject: Reclamation Permit Monitoring Report, 2nd Quarter 2017 Dear Ms. Kouyoumdjian, Enclosed is the South Tahoe Public Utility District's 2017 2nd quarter self-monitoring report for April through June 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 30.02 MG of wastewater was pumped to the ERB during this quarter. This was done for construction at the Luther Pass Pump Station and the Diamond Valley Ranch irrigation system. There was no wastewater remaining in the ERB on June 30, 2017. The ERB was inspected on June 28, 2017; the report is attached. Export Pipeline The District's Final effluent export pipeline route was not inspected this quarter. 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. 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, g(e4 t; C89309 >12 1 k`'. 3!/Loll r.- Shannon Cotulla Assistant General Manager / Engineer scotulla(a 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: 0 Sample site locations 2 Map of Alpine County sample sites 2 Harvey Place Reservoir recycled water storage 2 Harvey Place Reservoir Trihalomethanes test results 7 Alpine County and Tahoe Basin Surface waters, Groundwaters, and HPR 7 Blue Green Algae results 1 Alpine County and Tahoe Basin groundwater elevations 1 Alpine County soils 1 Sample Comments 1 Tahoe Basin ERB Monitoring Wells Purge Records 4 Alpine County Monitoring Wells Purge Records 12 Photos of Irrigation ditch flows 0 Total pages 50 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 2nd Quarter Report.doc Operational Problems and Major Maintenance Activities April — June 2017 Wastewater Treatment Facilities • Aeration Basin #2 was removed from service to begin a $1.6 million rehab project which will replace all of the fine bubble aeration equipment, upsize the influent pipe for better throughput capability, and provide coatings to the interior concrete surfaces. The plant is operating on AB#1 in which the same upgrades were performed last year. This project will include replacement of the drive system for primary clarifier#1 later this summer. • Export system: we have continued the $4.3 million pump motor replacement and station controls upgrade project at the Luther Pass pump station. We are in the final testing and commissioning stages now. Wastewater Conveyance System • Sewer Pump Stations o A temporary vacuum device was hooked up to manually suck out Vacuum Valve Station #4 septic tank. This was done due to collapse of the 60 gallon fiberglass tank (sump) caused by heavy water saturation from the 2017 storms. o Core drilled holes in the septic vault for future discharge lines and electrical lines for Vacuum Valve Station #4 o Poured cement on top of the septic vault for future Electrical Panel. • Collection System o 85 feet of existing 24" main was lined with 22" PVC from Tahoe Keys M.H. #1 to the Tahoe Keys Pump Station o Installed two, 2" poly lines at Fallen Leaf Lake. The run was from WS4 to the main station, approximately 500 feet. Also installed two other 2" lines the same distance to be taken up to WS 3 after Labor Day. WS4 is now an electrical station. Alpine County Disposal Facilities • Thomas Haen Company continues to work on the District's Diamond Valley Ranch Irrigation Improvements Project, Phase 1. • On May 31st a leak was discovered on the 24" inverted siphon that's part of the Diamond Ditch conveyance system. The siphon was isolated and Rob Tucker with Lahontan was notified. The 24" siphon will be isolated for the remainder of the irrigation season and all recycled water conveyed via the Diamond Ditch will be sent through the 30" siphon. The District will be assessing the condition of the 24" siphon in the near future to map out a course of action for its immediate repair and future improvements. Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 6/19/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 10.41 AM April 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 4/1/2017 Sat 5.70 6.6 6.35 163 9.7 116 5.0 4/2/2017 Sun 5.68 7.0 6.59 4/3/2017 Mon 5.32 6.2 6.08 4/4/2017 Tue 5.12 6.0 5.67 4/5/2017 Wed 5.14 6.0 5.99 126 4.5 107 1.3 4/6/2017 Thu 5.88 6.7 6.55 0.43 Rain 4/7/2017 Fri 6.56 7.7 6.53 1.01 Snow 4/8/2017 Sat 6.02 7.4 7.08 0.59 Snow 124 6.8 105 3.3 4/9/2017 Sun 5.73 6.9 6.48 4/10/2017 Mon 5.37 6.3 5.88 4/11/2017 Tue 5.19 6.1 5.49 4/12/2017 Wed 5.34 6.1 6.58 0.08 Rain 119 1.5 4/13/2017 Thu 5.70 6.7 5.83 1.16 Snow 4/14/2017 Fri 5.56 7.4 5.49 4/15/2017 Sat 5.63 6.7 5.78 148 5.4 141 2.2 4/16/2017 Sun 5.78 6.9 6.47 0.48 Rain 4/17/2017 Mon 6.07 8.1 6.32 0.12 Rain 113 1.5 4/18/2017 Tue 6.28 7.6 6.61 0.54 Rain 4/19/2017 Wed 5.55 6.7 7.13 4/20/2017 Thu 5.39 6.3 4.52 4/21/2017 Fri 5.44 6.5 6.27 4/22/2017 Sat 5.71 7.2 5.71 129 5.3 126 1.5 4/23/2017 Sun 5.43 6.9 6.44 4/24/2017 Mon 5.11 6.4 4.63 0.04 Rain 4/25/2017 Tue 4.88 5.7 7.18 4/26/2017 Wed 4.92 5.6 7.99 111 7.3 111 2.5 4/27/2017 Thu 5.68 6.6 7.09 4/28/2017 Fri 5.13 6.9 5.23 4/29/2017 Sat 5.00 5.9 5.54 134 9.5 120 2.8 4/30/2017 Sun 4.85 6.1 4.99 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 165.16 199.2 184.49 0.00 0.00 4.45 935 48.3 1058 21.5 Maximum 6.56 8.1 7.99 0.00 0.00 1.16 163 9.7 141 5.0 Minimum 4.85 5.6 4.52 0.00 0.00 0.04 111 4.5 105 1.3 Average 5.51 6.6 6.15 0.49 134 6.9 118 2.4 #Tests 30 30 30 0 0 9 7 7 9 9 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 6/19/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 10:41 AM April 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 4/1/2017 Sat 7.29 7.64 5.4 < 1 < 1 4/2/2017 Sun 7.26 7.67 6.0 < 1 < 1 4/3/2017 Mon 7.25 7.42 5.5 < 1 < 1 24.4 18.5 4/4/2017 Tue 7.30 7.60 5.9 < 1 < 1 4/5/2017 Wed 7.30 7.65 6.0 < 1 < 1 228 221 4/6/2017 Thu 7.30 7.66 5.7 < 1 < 1 4/7/2017 Fri 7.30 7.46 5.9 < 1 < 1 4/8/2017 Sat 7.43 7.62 5.8 < 1 < 1 4/9/2017 Sun 7.43 7.75 6.8 < 1 < 1 4/10/2017 Mon 7.36 7.68 6.6 < 1 < 1 21.4 16.9 4/11/2017 Tue 7.36 7.75 5.8 < 1 < 1 4/12/2017 Wed 7.37 7.71 5.5 < 1 < 1 236 226 4/13/2017 Thu 7.33 7.70 6.1 < 1 < 1 4/14/2017 Fri 7.25 7.54 6.0 < 1 < 1 4/15/2017 Sat 7.26 7.66 5.8 < 1 < 1 4/16/2017 Sun 7.31 7.58 5.6 < 1 < 1 4/17/2017 Mon 7.33 7.76 6.0 < 1 < 1 4/18/2017 Tue 7.31 7.54 6.0 < 1 < 1 21.9 14.7 4/19/2017 Wed 7.27 7.56 6.0 < 1 < 1 4/20/2017 Thu 7.38 7.53 6.1 < 1 < 1 4/21/2017 Fri 7.42 7.72 6.8 < 1 < 1 245 227 4/22/2017 Sat 7.32 7.68 6.1 < 1 < 1 • 4/23/2017 Sun 7.38 7.72 6.0 < 1 < 1 4/24/2017 Mon 7.37 7.58 5.8 < 1 < 1 4/25/2017 Tue 7.47 7.54 6.1 < 1 < 1 21.5 16.6 4/26/2017 Wed 7.22 7.69 6.4 < 1 < 1 4/27/2017 Thu 7.37 7.66 6.1 < 1 < 1 _ 4/28/2017 Fri 7.35 7.69 11.6 < 1 < 1 4/29/2017 Sat 7.42 7.74 6.0 < 1 < 1 4/30/2017 Sun 7.41 7.83 6.3 < 1 < 1 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 220.12 229.33 185.7 30 30 89.2 66.7 709 674 Maximum 7.47 7.83 11.6 1 1 24.4 18.5 245 227 Minimum 7.22 7.42 5.4 1 1 21.4 14.7 228 221 Average 7.34 7.64 6.19 1.0 1.0 22.3 16.7 236 225 #Tests 30 30 30 30 30 4 4 3 3 l Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 6/19/2017 • WASTEWATER TREATMENT PLANT MONTHLY REPORT 10:31 AM May 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 5/1/2017 Mon 5.65 7.5 5.74 112 11.8 105 3.5 5/2/2017 Tue 4.56 5.4 5.02 5/3/2017 Wed 4.47 5.7 4.90 5/4/2017 Thu 4.87 6.2 5.02 5/5/2017 Fri 5.41 7.1 6.08 5/6/2017 Sat 5.99 7.8 6.11 1.06 Snow 142 15.2 131 7.2 5/7/2017 Sun 5.35 6.1 5.70 0.20 Rain 5/8/2017 Mon 4.86 5.9 5.69 117 14.3 100 6.1 5/9/2017 Tue 4.74 6.2 5.29 5/10/2017 Wed 4.54. 5.5 5.02 5/11/2017 Thu 4.70 6.6 5.41 5/12/2017 Fri 4.44 5.3 4.73 5/13/2017 Sat 4.48 5.5 4.59 172 7.2 164 3.7 5/14/2017 Sun 4.31 5.3 4.46 0.01 Rain 5/15/2017 Mon 4.14 4.9 4.38 151 6.0 137 2.3 5/16/2017 Tue 5.04 6.6 5.35 0.02 Rain 5/17/2017 Wed 5.10 6.4 5.31 5/18/2017 Thu 4.31 5.3 4.92 5/19/2017 Fri 4.37 5.2 4.92 5/20/2017 Sat 4.63 5.7 5.46 177 5.6 144 2.9 5/21/2017 Sun 4.39 5.6 4.64 5/22/2017 Mon 4.09 5.2 4.35 5/23/2017 Tue 4.60 5.5 5.21 5/24/2017 Wed 4.59 5.6 4.89 148 4.4 131 1.5 5/25/2017 Thu 4.93 6.4 5.75 5/26/2017 Fri 4.48 5.4 4.56 5/27/2017 Sat 5.01 6.4 5.31 223 6.9 173 2.3 5/28/2017 Sun 5.17 7.0 5.46 5/29/2017 Mon 4.92 6.8 5.36 203 6.7 189 3.1 5/30/2017 Tue 4.38 5.8 4.85 5/31/2017 Wed 4.09 5.1 4.38 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 146.61 185.0 158.86 0.00 0.00 1.29 1445 78.0 1274 32.5 Maximum 5.99 7.8 6.11 0.00 0.00 1.06 223 15.2 189 7.2 Minimum 4.09 4.9 4.35 0.00 0.00 0.01 112 4.4 100 1.5 Average 4.73 6.0 5.12 0.32 161 8.7 142 3.6 #Tests 31 31 31 0 0 4 9 9 9 9 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 6/19/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 10.31 AM May 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 5/1/2017 Mon 7.30 7.76 5.8 < 1 < 1 237 234 5/2/2017 Tue 7.35 7.70 6.2 < 1 < 1 23.9 18.3 5/3/2017 Wed 7.32 7.51 5.6 < 1 < 1 5/4/2017 Thu 7.31 7.62 8.7 < 1 < 1 5/5/2017 Fri 7.40 7.70 7.8 < 1 < 1 5/6/2017 Sat 7.35 7.64 5.3 < 1 < 1 5/7/2017 Sun 7.34 7.76 5.8 < 1 < 1 5/8/2017 Mon 7.41 7.70 6.0 1 < 1 21.5 16.6 228 222 5/9/2017 Tue 7.27 7.58 5.8 < 1 < 1 5/10/2017 Wed 7.40 7.70 5.9 < 1 < 1 5/11/2017 Thu 7.39 7.70 6.3 < 1 < 1 5/12/2017 Fri 7.30 7.58 5.8 < 1 < 1 5/13/2017 Sat 7.29 7.67 5.7 < 1 < 1 5/14/2017 Sun 7.36 7.80 5.8 < 1 < 1 5/15/2017 Mon 7.30 7.74 5.6 < 1 < 1 5/16/2017 Tue 7.41 7.78 4.0 1 < 1 29.4 19.6 5/17/2017 Wed 7.37 7.68 8.0 < 1 < 1 5/18/2017 Thu 7.48 7.64 4.8 < 1 < 1 5/19/2017 Fri 7.49 7.70 5.7 < 1 < 1 5/20/2017 Sat 7.20 7.57 5.2 < 1 < 1 5/21/2017 Sun 7.37 7.78 4.5 < 1 < 1 5/22/2017 Mon 7.29 7.64 4.8 < 1 < 1 29.4 21.3 251 238 5/23/2017 Tue 7.45 7.71 5.0 < 1 < 1 5/24/2017 Wed 7.40 7.76 4.6 < 1 < 1 5/25/2017 Thu 7.36 7.57 5.2 < 1 < 1 5/26/2017 Fri 7.39 7.78 4.6 < 1 < 1 5/27/2017 Sat 7.35 7.77 4.4 < 1 < 1 5/28/2017 Sun 7.38 7.83 5.2 < 1 < 1 5/29/2017 Mon 7.32 7.68 5.6 < 1 < 1 5/30/2017 Tue 7.42 7.75 5.0 < 1 < 1 5/31/2017 Wed 7.42 7.66 5.8 < 1 < 1.0 29.8 23.9 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 228.19 238.46 174.5 31 31 134.0 99.7 716 694 Maximum 7.49 7.83 8.7 1 1 29.8 23.9 251 238 Minimum 7.20 7.51 4.0 1 1 21.5 16.6 228 222 Average 7.36 7.69 5.63 1.0 1.0 26.8 19.9 239 231 #Tests 31 31 31 31 31 5 5 3 3 Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 7/6/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 11:50 AM June 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 6/1/2017 Thu 4.08 4.8 4.40 6/2/2017 Fri 4.22 5.0 4.56 6/3/2017 Sat 4.58 5.7 4.51 201 6.0 136 3.1 6/4/2017 Sun 4.77 6.5 4.44 6/5/2017 Mon 4.34 5.4 0.00 5.56 6/6/2017 Tue 4.05 5.0 0.00 4.05 6/7/2017 Wed 4.01 5.0 0.00 4.01 6/8/2017 Thu 3.99 5.0 0.93 3.15 0.02 Rain 6/9/2017 Fri 4.36 5.5 0.00 4.36 0.04 Rain 6/10/2017 Sat 4.56 6.0 0.00 4.56 6/11/2017 Sun 4.33 6.1 0.00 4.33 0.01 Snow 6/12/2017 Mon 4.06 5.1 5.79 1.15 . 6/13/2017 Tue 4.04 5.1 7.54 2.75 6/14/2017 Wed 4.05 5.2 8.90 3.96 180 3.8 154 3.1 6/15/2017 Thu 4.05 5.0 6.29 1.61 6/16/2017 Fri 4.35 5.3 7.54 2.44 6/17/2017 Sat 4.79 6.0 7.22 1.71 222 8.3 162 6.6 6/18/2017 Sun 4.66 6.5 7.90 2.45 6/19/2017 Mon 4.39 5.7 7.66 2.50 6/20/2017 Tue 4.26 5.5 7.51 2.50 6/21/2017 Wed 4.23 5.5 8.09 3.05 180 10.1 145 16.4 6/22/2017 Thu 4.28 5.4 6.57 1.63 6/23/2017 Fri 4.50 5.7 4.95 6/24/2017 Sat 4.71 6.2 4.75 NV NV 200 7.0 6/25/2017 Sun 4.55 6.4 4.76 6/26/2017 Mon 4.27 5.7 4.49 6/27/2017 Tue 4.20 5.4 4.46 6/28/2017 Wed 4.11 5.4 4.49 201 9.4 180 6.3 6/29/2017 Thu 4.19 5.4 5.46 6/30/2017 Fri 4.37 5.3 3.63 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 129.35 165.8 136.84 25.75 30.02 0.07 984 37.6 977 42.5 Maximum 4.79 6.5 8.90 3.96 5.56 0.04 222 10.1 200 16.4 Minimum 3.99 4.8 0.00 1.15 3.15 0.01 180 3.8 136 3.1 Average 4.31 5.5 4.56 2.34 4.29 0.02 197 7.5 163 7.1 #Tests 30 30 30 11 7 3 5 5 6 6 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 7/6/2017 WASTEWATER TREATMENT PLANT MONTHLY REPORT 11.50 AM June 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 6/1/2017 Thu 7.44 7.68 5.4 < 1 < 1 6/2/2017 Fri 7.39 7.71 5.4 < 1 < 1 6/3/2017 Sat 7.37 7.60 5.3 < 1 < 1 6/4/2017 Sun 7.31 7.57 5.2 < 1 < 1 6/5/2017 Mon 7.45 6/6/2017 Tue 7.41 30.3 6/7/2017 Wed 7.31 6/8/2017 Thu 7.55 6/9/2017 Fri 7.45 - 6/10/2017 Sat 7.44 6/11/2017 Sun 7.46 6/12/2017 Mon 7.37 7.73 8.1 < 1 < 1 35.0 27.7 6/13/2017 Tue 7.36 7.74 7.0 < 1 < 1 6/14/2017 Wed 7.44 7.85 5.8 < 1 < 1 260 269 6/15/2017 Thu 7.33 7.78 7.2 < 1 < 1 6/16/2017 Fri 7.41 7.82 6.4 < 1 < 1 6/17/2017 Sat 7.34 7.80 6.3 < 1 < 1 6/18/2017 Sun 7.34 7.94 6.0 < 1 < 1 6/19/2017 Mon 7.48 7.99 6.3 < 1 < 1 37.1 28.3 6/20/2017 Tue 7.38 8.04 5.6 < 1 < 1 255 268 6/21/2017 Wed 7.39 8.20 6.0 < 1 < 1 6/22/2017 Thu 7.40 8.22 5.9 < 1 < 1 6/23/2017 Fri 7.27 7.78 5.7 < 1 < 1 6/24/2017 Sat 7.31 7.76 5.6 < 1 < 1 6/25/2017 Sun 7.41 7.88 5.0 < 1 < 1 6/26/2017 Mon 7.43 7.85 4.8 < 1 < 1 6/27/2017 Tue 7.42 7.84 5.7 < 1 < 1 6/28/2017 Wed 7.39 7.72 5.2 < 1 < 1 6/29/2017 Thu 7.43 7.82 7.3 1 < 1 6/30/2017 Fri 7.37 7.86 5.0 < 1 < 1 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 221.85 180.18 136.2 23 23 102.4 56.0 515 537 Maximum 7.55 8.22 8.1 1 1 37.1 28.3 260 269 Minimum 7.27 7.57 4.8 1 1 30.3 27.7 255 268 Average 7.40 7.83 5.92 1.0 1.0 34.1 28.0 258 269 #Tests 30 23 23 23 23 3 2 2 2 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 181 0 6 0 0 0 0 6 96.7% 2-Hour Peak Inflow; 18.5 MGD 181 0 0 0 0 0 0 0 100.0% BOD,30 Day Ave:30 mg/L 6 0 0 0 , 0 0 0 0 100.0% BOD,Max:45 mg/L 44 0 0 0 0 0 0 0 100.0% SS,30 Day Ave:30 mg/L 6 0 0 0 0 0 0 0 100.0% SS,Max:60 mg/L 49 0 0 0 0 0 0 0 100.0% pH,6.5 to 8.5 174 0 0 0 0 0 0 0 100.0% Total Coliforms,Max:240 MPN/100 mL 174 0 0 0 0 0 0 0 100.0% Total Coliforms,7-day Median:23 MPN 174 0 0 0 0 0 0 0 100.0% Total 989 0 6 0 0 0 0 0 0 0 0 0 0 6 99.4% South Tahoe Public Utility District ERB Inspection Date of Inspection: 6/ace-ch Performed by: /4/€ tG' 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: /'a /f e`) 404-;v.;‘). $04iC ev r l ea Ci' -Prom 1'6+ f/e4r Vegetation control: . S I q d W i 110&%1 c p ro 4 f-o cv*. Overflow Spillway: J 00 C Stairs North: t4) p f e Stairs South: 110 t Top Fill Structure North: 8 t j t! se " Let Ida el Top Fill Structure South: /)0'f' :4 U se 41)&4 c°'n ed Drain Valve North: 500 d o per4b l e Drain Valve South: y 00 p pe rA, Iê Perimeter Fence & Gates: (,�'D 0�. Valve House: 50 O C'. Comments: C4. 5 C to Inspector W45 p ('es c4'r' "tic ILy .f1 s i/15peef oti_ 190 t ;n5 -,r report froom. h ; .vt 40 See 7-c a.�i,�, Go(f&>i-45 5 r( n ee/e c. r Date of Inspection: /� Performed by: C p 6 a� . . f f ! f !, !' !, f !' r f ,.v) `j;. vv' k -- + + + + %\ `�A + + + + + + — •4-- alve House 7 ci"r t 44 7 , i 14 c i FOutlet Valve — llir,,11411,iptiNorth Pond -f t rf Il .. �'1` 5 Stairs �; C04.0eci + ti + + + + + + + + - ^- + .' ee , _ I i'''111 I ' --,, // it iif Y' + + + + t/,•. +• + + - IISI Outlet Valve _ 'IJP � .'_ I. f Coope d _- + + + + + + f , ► I I + ; ..� South Pond 4k / I"_ + 1 1' 1 I, + + + + ",' '17 A , k ,' + + + ,,, .iiir II /Sh......„ + + i WU+ - Stairs / ' 44 M — + + + + + + ` + + + + + -- -- + + + + + + + + + + + - t I I I ;t t I t t t t Sample Sites Site - ' ' --Latitude on - -_ _�._, [Site Longitude Location ,_ Type Sample 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 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 I 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- -Lafitude 9 YP P 'Lon dude• C ocafiori LL' - T"'pe Sam le 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 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 'OM'U3delhi'L661.(0.)�1{6ur(doa may.` �}, riow'�ursma owu OJO YL 1 3lgs Amon 1.03.1.V aN< 5rdl I • . ,� as Mil/ui moor Ir. • 1 1 YriV\ n pI ?j ` • x } • rw` rj c0, $ lir . •r a fr rr r , �""- i f i�, ,, r `..:1`4 51 ,, }. 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EXPLANATION • 1 b •' a \ 1 I l \ I MONITOR WELL 6... .t:4": i:. 1;)--, �, � OY"•1 ' - I +; I t - I. 1 _- • PRIVATE WELL ,. - I I- x 1 f:�trngalion-Recylad-23 Water 1 fy;d.:.,--,- - • t '� I I 1 Irrigation-Blended Recycled Water y 1 :-t-.- 1' l 1 a , 0 1400 440° 600DFeet SOH DISTRICT " RECYCUTLEDTAHOE WATER MB UTILITY PROGRAM WELL LOCATIONS "" i E CARSON VALLEY GROUNDWA,TER BASIN (6-6) „—,,,_.0) ALPINE COUNTYCA 5 � 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 04/01/17 3,460 340 05/01/17 3,005 795 06/01/17 2,617 1,183 E:W PRIHPR Current Storage-Lahontan_Report.xls Acre-feet N N W C9 O O O O O- O O CD O 0 O O 0 CD O 0 O 01/15 02/15 .N4\\), 03/15 04/15 05/15 06/15 07/15 08/15 7 I 09 /15 CD A) 10/15 11/15 0 CD 12/15 .v 01/16 O. geo. ... 02/16 03/16 m 04/16 M N 05/16 'A 06/16 w © y 07/16 C3 CD mig 08/16 ,^ O 09/16 � �' 10/16 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 • ENVIRONMENTAL _ AGRICULTURAL Analytical Chemists May 19, 2017 South Tahoe Public Utility District Lab ID : SP 1705367 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 (2 pages) : An overview of the work performed at FGL. Sample Results (1 page) : 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 Diamond Ditch @ Beginning I 05/03/2017 05/05/2017 I SP 1705367-001 I 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 3 °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 05/17/2017:205945 All preparation quality controls are within established criteria,except: The following note applies to Dibromofluromethane: 5030B 320 LCS not within Acceptance Range(AR).Data was accepted based on the BS/BSD recovery. The following note applies to Dibromofluromethane: 435 Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. I 8260 05/17/2017:207386 All analysis quality controls are within established criteria. 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 • May 19, 2017 Lab ID : SP 1705367 South Tahoe Public Utility District Customer : 2-11369 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 Digitally signed by David Tea,B.A.M.B.A. Approved By David Terz,B.A.,M.B.A. E' Tine:QADicdor ' Datc:2017-OS-22 Page 2 of 5 f,` ENVIRONMENTALAGRICULTURAL Analytical Chemists May 19, 2017 Lab ID : SP 1705367-001 Customer ID : 2-11369 South Tahoe Public Utility District 1275 Meadow Crest Drive Sampled On : May 3, 2017-11:00 South Lake Tahoe, CA 96150 Sampled By : P. Kunibe Received On : May 5, 2017-10:55 Matrix : Waste Water Description : Diamond Ditch @ Beginning Project : AG55952 Sample Result-Organic Constituent Result PQL Units Note Sample Preparation Sample Analysis Method Date/ID Method Date/ID EPA 8260 4-Bromofluorobenzene$ 103 79-119 % 5030B 05/17/17:205945 8260B 05/17/17:207386 Dibromofluoromethane$ 87.0 84-136 % 5030B 05/17/17:205945 8260B 05/17/17:207386 1,2-Dichloroethane-d41 83.7 58-166 % 5030B 05/17/17:205945 8260B 05/17/17:207386 To1uene-d8$ 97.8 88-111 % 5030B 05/17/17:205945 8260B 05/17/17:207386 Benzene ND 0.5 ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 Bromodichloromethane ND 1 ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 Bromoform ND 1 ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 tert-Butanol ND 5 ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 Chloroform ND 1 ug/L 5030B 05/17/17:205945 8260E 05/17/17:207386 Dibromochloromethane ND 2 ug/L 5030B 05/17/17:205945 8260E 05/17/17:207386 Di-isopropyl ether(DIPE) ND 0.5 ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 Ethyl Benzene ND 0.5 ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 Ethyl tert-butyl ether ND 0.5 ug/L 5030B 05/17/17:205945 8260E 05/17/17:207386 (ETRE) Methyl tert-butyl ether ND 0.2 ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 (MTBE) tert-Amyl methyl ether ND 0.5 ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 (TAME) Toluene ND 0.5 ug/L 5030B 05/17/17:205945 8260E 05/17/17:207386 Xylenes ND -- ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 Total Trihalomethanes ND -- ug/L 5030B 05/17/17:205945 8260B 05/17/17:207386 ND=Non-Detected.PQL=Practical Quantitation Limit.$Surrogate.*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 ELAP Certification No.1573 CA ELAP Certification No.1563 CA ELAP Certification No.2670 CA ELAP Certification No.2775 CA ELAP Certification No.2810 t. ENVIRONMEINTALAGRICULTURAL Analytical Chemists May 19, 2017 Lab ID : SP 1705367 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 05/17/17:205945VRG Blank ug/L 25.00 84.8% 58-166 LCS ug/L 25.00 82.5% 58-166 MS ug/L 25.00 82.9% 58-166 (SP 1705367-001) MSD ug/L 25.00 87.1% 58-166 MSRPD ug/L 25.00 5.0% 20.0 4-Bromofluorobenzene 5030B 05/17/17:205945VRG Blank ug/L 25.00 102% 79-119 LCS ug/L 25.00 100% 79-119 MS ug/L 25.00 102% 79-119 (SP 1705367-001) MSD ug/L 25.00 102% 79-119 MSRPD ug/L 25.00 0.7% <20.0 Benzene 5030B 05/17/17:205945VRG Blank ug/L ND <0.5 LCS ug/L 25.00 93.1% 60-134 MS ug/L 25.00 98.6% 47-169 (SP 1705367-001) MSD ug/L 25.00 96.2% 47-169 MSRPD ug/L 25.00 2.4% 24 Bromodichloromethane 5030B 05/17/17:205945VRG Blank ug/L ND <0.5 Bromoform 5030B 05/17/17:205945VRG Blank ug/L ND <0.5 Chloroform 5030B 05/17/17:205945VRG Blank ug/L ND <1 Dibromochloromethane 5030B 05/17/17:205945VRG Blank ug/L ND <1 Dibromofluromethane 5030B 05/17/17:205945VRG Blank ug/L 25.00 83.1% 84-136 LCS ug/L 25.00 82.2% 84-136 325 MS ug/L 25.00 83.6% 86-127 435 (SP 1705367-001) MSD ug/L 25.00 86.6% 86-127 MSRPD ug/L 25.00 3.6% 5_20.0 Ethyl tert-Butyl Ether 5030B 05/17/17:205945VRG Blank ug/L ND <2 Ethylbenzene 5030B 05/17/17:205945VRG Blank ug/L ND <0.5 Isopropyl Ether 5030B 05/17/17:205945VRG Blank ug/L ND <5 Methyl tert-Butyl Ether(MTBE) 5030B 05/17/17:205945VRG Blank ug/L ND <2 TAME 5030B 05/17/17:205945VRG Blank ug/L ND <5 tert-Butanol 5030B 05/17/17:205945VRG Blank ug/L ND <5 Toluene 5030B 05/17/17:205945VRG Blank ug/L ND <0.5 LCS ug/L 25.00 100% 56-131 MS ug/L 25.00 109% 44-164 (SP 1705367-001) MSD ug/L 25.00 102% 44-164 MSRPD ug/L 25.00 6.4% <30 Toluene-d8 5030B 05/17/17:205945VRG Blank ug/L 25.00 97.0% 88-111 LCS ug/L 25.00 96.9% 88-111 MS ug/L 25.00 96.7% 88-111 (SP 1705367-001) MSD ug/L 25.00 96.3% 88-111 MSRPD ug/L ' 25.00 0.4% 0.0 Xylenes m,p 5030B 05/17/17:205945VRG Blank ug/L ND <2 1,2-Dichloroethane-d4 8260B 05/17/17:207386VRG CCV ug/L 25.00 90.2% 70-130 4-Bromofluorobenzene(BFB) 8260B 05/17/17:207386VRG CCV ug/L 25.00 103% 70-130 Benzene 8260B 05/17/17:207386VRG CCV ug/L 25.00 116% 70-130 Bromodichloromethane 8260B 05/17/17:207386VRG CCV ug/L 25.00 96.1% 70-130 Bromoform 8260B 05/17/17:207386VRG CCV ug/L 25.00 95.3% 70-130 Chloroform 8260B 05/17/17:207386VRG CCV ug/L 25.00 97.4% 80-120 Dibromochloromethane 8260B 05/17/17:207386VRG CCV ug/L 25.00 98.8% 70-130 Dibromofluromethane 8260B 05/17/17:207386VRG CCV ug/L 25.00 83.1% 70-130 Ethyl tert-Butyl Ether 8260B 05/17/17:207386VRG CCV ug/L 25.00 89.0% 50-150 Ethylbenzene 8260B 05/17/17:207386VRG CCV ug/L 25.00 117% 80-120 Isopropyl Ether 8260B 05/17/17:207386VRG CCV ug/L 25.00 90.3% 50-150 Methyl tert-Butyl Ether 8260B 05/17/17:207386VRG CCV ug/L 25.00 85.4% 70-130 TAME 8260B 05/17/17:207386VRG CCV ug/L 25.00 124% 50-150 tert-Butanol 8260B 05/17/17:207386VRG CCV ug/L 125.0 92.0% 50-150 Page4of5 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,CA95926 San Luis Obispo,CA 93401 'Visalia,CA93291 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 May 19, 2017 Lab ID : SP 1705367 South Tahoe Public Utility District Customer : 2-11369 Quality Control-Organic Constituent Method Date/ID Type Units Conc. QC Data DQO Note Organic Toluene 8260B 05/17/17:207386VRG CCV ug/L 25.00 119% 80-120 Toluene-d8 8260B 05/17/17:207386VRG CCV ug/L 25.00 96.1% 70-130 Xylene m,p 8260B 05/17/17:207386VRG CCV ug/L 50.00 109% 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. Explanation 325 :The LCS was out of acceptance limits.Results may be biased low. 435 :Sample matrix may be affecting this analyte.Data was accepted based on the LCS or CCV recovery. Page 5 of 5 CHAIN OF CUSTODY South Tahoe Public Utility District t:.:,, Lab Sent FGL Preservatives: Turn-Around-Time: 1275 Meadow Crest Drive semplegs): P.Kuniba VOC-HCI Standard South Lake Tahoe,CA 96150 Phone:(530)•543-6231 �...• °:- I1U ( 1 0 a m�24 a f- ' � h a m O AG55952 00.01 Diamond DNeh @ Beginning Start of Diamond Ditch:at HPR 0510312017 11:00 INN )( X outlet Notes: Relinquished by: Relinquished by: _Repoli MTBE to 0.2 ug/L .k.,104./.4-• Ay ,� Si _Analyze Travel and Field Blanks only if VOCs detected in samples. Signiature gnieture _Use Calif State WriteOn to report 8 upload results of Potable Water Wells. Print DcloYC3 TrekO•(1(yl Print Please Return all STPUD ice chests&Blue Ice Company South Tahoe Public Utility District Company Date: 0504rt- Time: 1400 Date: Time: Comments: • Relinquished b. L t . ) Relinquished by: 4 Slgniature Gi GUMMI Slgniature Tracking#D10011117153114I Print I Print t_ 14.1. . I�..,l .. I Company Company t1-.- `J Date: 5 Ii Time: i Date: 7 1 Time: I Page 1 of 1 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 D10011117153114 3.Were samples received in a chilled condition? Temps: 3 / ` 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 CM 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 by: Reviewed and DigitallysignedbylnezCovarrubias Inez Covarrubias Diate S 5/08/2C oei9:46 Approved By Date:05/08/2017-09:46:09 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 1705367 IV-05/08/2017-09:46:09 Alpine County Summary Report . Temp pH EC DO Alk TDS SS Turb Chloride Sulfate ACMW-01AW 04/05/2017 Main Dam 10.2 6.59 96.9 40.3 84 1.85 3.89 ACMW-01BE 04/05/2017 Secondary Dam 10.6 ' 6.46 140 60.2 111 3.98 2.43 ACMW-02N 04/05/2017 Access Gate 12.4 6.93 182 71.9 120 1.58 2.86 ACMW-02S 04/05/2017 Access Gate 10.2 6.36 104 35.5 85 2.18 5.76 ACMW-04W 04/05/2017 Gansberg 12.0 6.31 229 39.2 140 21.8 15.3 ACMW-06S 04/05/2017 Celio 14.2 7.19 644 190 360 56.4 26.1 ACMW-08N 05/23/2017 Diamond Valley Ranch 13.2 7.15 162 83.5 130 1.11 1.06 ACMW-09D 06/08/2017 Diamond Valley Ranch 12.5 6.32 99.1 31.2 95 1.2 1.72 3.97 ACMW-10 06/08/2017 Diamond Valley Ranch 11.3 6.51 162 74.7 74 6.1 3.65 4.04 ACMW-11 06/08/2017 Diamond Valley Ranch 10.3 6.36 77.4 33.3 57 0.52 1.61 3.70 ACMW-12 05/10/2017 Diamond Valley Ranch 11.9 6.79 103 48.6 96 1.64 2.61 ACMW-13 05/10/2017 Diamond Valley Ranch 8.1 6.37 85.0 40.6 112 1.80 2.88 ACMW-14 06/08/2017 Diamond Valley Ranch 9.0 6.08 182 21.4 168 6.5 0.219 1.76 ACMW-15 06/20/2017 Diamond Valley Ranch 12.8 6.07 62.0 28.6 49 <0.50 1.78 ACMW-16 06/20/2017 Diamond Valley Ranch 12.3 6.21 117 48.7 83 1.18 4.01 ACMW-17 06/20/2017 Diamond Valley Ranch 10.6 6.34 83.1 30.5 68 1.67 3.56 ACMW-18 06/20/2017 Diamond Valley Ranch 13.0 6.68 70.9 27.1 57 0.892 4.28 ACMW-19 06/20/2017 Diamond Valley Ranch 11.9 7.11 252 83.0 170 23.1 12.6 ACMW-20 05/09/2017 Diamond Valley Rd- 10.9 6.08 159 30.8 123 6.85 9.10 Paynesville ACMW-21 05/09/2017 River Ranch-Rd 8.7 6.14 108 31.7 78 6.90 3.19 ACMW-22 05/09/2017 Fredericksburg Ln 13.2 5.90 116 35.6 93 2.59 <2.0 ACMW-23 05/09/2017 Scott Brooke's Ranch by 15.7 7.62 355 172 287 4.21 19.7 Irrigation Ditch ACMW-24 05/09/2017 Scott Brooke's Ranch by 14.1 6.74 718 167 455 111 37.0 Irrigation Ditch ACMW-25 05/09/2017 Access road between 12.5 6.40 175 48.2 130 13.1 7.43 Neddenriep&Brooke ranches ACMW-26 05/09/2017 Access road between 12.4 6.95 188 70.9 142 14.3 2.54 Neddenriep&Brooke ranches CONTROL 04/11/2017 East side near Post Office 9.0 6.98 249 14.7 DD-01 05/03/2017 Diamond Ditch @ Beginning 12.8 7.57 375 6.59 ERB 04/01/2017 ERB 6.57 22.6 10.2 59.8 36 • GW-05 06/08/2017 Neddenriep 13.1 6.46 254 59.7 164 0.05 23.6 10.3 GW-08 06/08/2017 Arent 14.4 6.16 333 45.7 209 0.18 46.5 20.1 GW-11 05/10/2017 Diamond Valley School 13.7 7.07 131 71.3 121 1.04 0.767 GW-17 05/10/2017 Diamond Valley Ranch House 15.6 6.23 119 62.5 108 1.95 1.33 Well HPR 04/04/2017 Harvey Place Reservoir 11.0 8.32 346 13.0 91.3 169 3.30 1.7 27.0 9.76 05/03/2017 Harvey Place Reservoir 15.1 7.85 371 9.42 90.1 176 2.16 2.0 37.1 9.78 06/07/2017 Harvey Place Reservoir 21.6 7.04 415 6.32 90.9 185 29.6 15 39.1 10.4 HVC-1 04111/2017 HVC @ Pioneer Trail 4.6 7.44 52.4 0.720 05/17/2017 HVC @ Pioneer Trail 8.3 6.83 41.2 0.668 06/21/2017 HVC @ Pioneer Trail 11.5 6.28 24.1 <0.50 HVC-2 04/11/2017 HVC 250'Upstream Pond#2 6.0 6.98 47.1 2.29 Results resported 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 05/17/2017 HVC 250'Upstream Pond#2 11.6 7.10 36.4 0.880 06/21/2017 HVC 250'Upstream Pond#2 15.8 6.06 28.6 0.517 HVC-3 04/11/2017 HVC 25'Downstream of 5.7 7.00 51 2.64 Meadow Crest 05/17/2017 HVC 25'Downstream of 11.2 7.15 38.4 0.975 Meadow Crest 06/21/2017 HVC 25'Downstream of 15.1 6.12 86.5 <0.50 Meadow Crest MW01 5 04/11/2017 SW corner of ERB 8.9 7.19 187 1.93 MW02-50 04/11/2017 South side of ERB Pond 9.4 6.63 322 29.6 MW03-50 04/11/2017 Southwest corner of ERB Pond 9.7 6.38 428 33.4 MW04-50 04/11/2017 Hank Monk side of ERB 8.2 6.43 103 8.92 MW07-50 04/20/2017 North side of ERB Pond 7.5 7.69 182 11.0 3.18 MW08-25 04/11/2017 South of Pond 1 7.6 5.98 141 4.49 ' MW11 04/11/2017 North of Biosolids building 9.2 6.27 284 33.8 MW12 04/11/2017 South of Biosolids Building 10.2 6.44 1077 20.8 MW13 04/11/2017 South of Pond 2 along HVC 4.9 7.13 856 9.68 SW-01 04/04/2017 Carson River Woodfords 2.7 7.09 53.8 11.5 25.9 50 4.15 2.0 1.06 1.09 05/03/2017 Carson River Woodfords 5.8 7.00 41.8 10.4 21.6 50 28.5 9.0 0.505 0.780 06/07/2017 Carson River Woodfords 9.8 7.92 41.9 9.31 20.6 37 16.8 5.8 <0.50 0.728 SW-02 04/04/2017 Indian Creek Upper 7.2 6.94 61.6 9.89 32.7 69 0.32 1.7 0.863 <0.50 05/03/2017 Indian Creek Upper 10.7 6.86 76.3 8.84 39.4 77 0.96 1.8 0.827 <0.50 06/07/2017 Indian Creek Upper 13.9 7.66 66.5 ' 8.33 32.5 56 3.64 2.8 <0.50 <0.50 SW-03 04/04/2017 Indian Creek Mid 8.5 6.59 81.0 9.75 37.8 79 3.71 3.0 2.14 1.19 05/03/2017 Indian Creek Mid 15.7 6.63 73.4 8.21 33.8 73 9.08 8.5 1.29 1.38 06/07/2017 Indian Creek Mid 13.9 7.39 70.8 8.57 32.1 42 9.49 7.0 1.33 1.06 SW-04 04/04/2017 Indian Creek Lower 9.4 7.08 89.2 9.89 43.6 88 7.72 4.4 2.21 1.68 05/03/2017 Indian Creek Lower 17.1 6.86 77.5 8.33 35.4 72 29.4 23 1.32 1.51 06/07/2017 Indian Creek Lower 15.5 7.60 79.2 8.73 37.1 67 - 8.82 8.5 1.06 1.26 SW-05 04/04/2017 Carson River Paynesville 4.2 7.20 57.1 11.3 26.7 55 4.65 2.3 1.15 1.18 05/03/2017 Carson River Paynesville 8.1 6.93 45.4 10.0 24.4 48 27.0 8.5 0.571 0.846 06/07/2017 Carson River Paynesville 6.8 7.86 43.6 10.3 21.2 34 15.9 6.0 <0.50 0.705 SW-06 04/04/2017 Carson River Stateline 4.4 7.32 58.2 11.5 26.9 55 5.83 - 2.7 1.18 1.22 05/03/2017 Carson River Stateline 7.8 7.18 48.7 10.4 23.8 43 27.2 8.9 0.633 0.871 . 06/07/2017 Carson River Stateline 7.5 7.81 44.4 10.1 21.4 40 33.0 9.1 <0.50 0.723 SW-07 06/07/2017 Fredericksburg Ditch 7.7 7.66 122 9.83 53.9 91 2.74 2.5 2.15 1.57 SW-08 04/04/2017 Irrigation Ditch 12.6 6.75 130 7.98 54.6 140 3.46 4.4 1.38 7.90 05/03/2017 Irrigation Ditch 18.2 6.56 176 3.17 74.7 149" 94.4 15 0.433 2.82 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as C 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 04/05/2017 Main Dam 0.026 0.016 <0.020 0.705 <0.010 0.738 <0.050 ACMW-01 BE 04/05/2017 Secondary Dam 0.026 0.019 <0.020 0.921 <0.010 0.965 <0.050 ACMW-02N 04/05/2017 Access Gate 0.020 <0.030 <0.020 2.48 <0.030 2.41 0.07 ACMW-02S 04/05/2017 Access Gate 0.013 <0.020 <0.020 1.66 <0.020 1.57 0.09 ACMW-04W 04/05/2017 Gansberg 0.018 <0.020 <0.020 1.45 <0.020 1.32 0.13 ACMW-06S 04/05/2017 Celio 0.100 0.085 <0.020 0.132 <0.010 0.052 0.080 ACMW-08N 05/23/2017 Diamond Valley Ranch 0.042 0.042 <0.020 0.605 <0.010 0.680 <0.090 ACMW-09D 06/08/2017 Diamond Valley Ranch 0.047 <0.080 <0.020 3.24 <0.080 3.33 <0.080 ACMW-10 06/08/2017 Diamond Valley Ranch 0.037 0.032 <0.020 0.281 <0.010 0.333 <0.080 ACMW-11 06/08/2017 Diamond Valley Ranch 0.021 <0.020 <0.020 0.328 <0.020 0.390 <0.080 ACMW-12 05/10/2017 Diamond Valley Ranch 0.033 0.032 <0.020 0.286 <0.010 0.343 <0.100 ACMW-13 05/10/2017 Diamond Valley Ranch 0.020 0.021 <0.020 0.284 <0.010 0.232 <0.100 ACMW-14 06/08/2017 Diamond Valley Ranch 0.017 <0.160 <0.020 14.0 <0.160 13.7 0.30 ACMW-15 06/20/2017 Diamond Valley Ranch 0.039 0.034 <0.020 0.127 <0.010 0.120 <0.050 ACMW-16 06/20/2017 Diamond Valley Ranch 0.063 0.056 <0.020 1.01 <0.010 1.10 <0.050 ACMW-17 06/20/2017 Diamond Valley Ranch 0.028 0.024 <0.020 1.17 <0.010 1.31 <0.050 ACMW-18 06/20/2017 Diamond Valley Ranch 0.029 0.029 <0.020 0.691 <0.010 0.818 <0.050 ACMW-19 06/20/2017 Diamond Valley Ranch 0.107 0.069 0.042 0.142 <0.010 <0.010 0.142 . ACMW-20 05/09/2017 Diamond Valley Rd- 0.050 0.060 <0.020 6.05 <0.040 5.71 0.34 Paynesville ACMW-21 05/09/2017 River Ranch Rd 0.063 0.061 <0.020 1.36 <0.030 1.28 <0.10 ACMW-22 05/09/2017 Fredericksburg Ln 0.023 <0.040 <0.020 4.17 <0.040 4.15 <0.10 ACMW-23 05/09/2017 Scott Brooke's Ranch by 0.055 0.033 <0.020 1.01 <0.010 1.02 <0.10 Irrigation Ditch ACMW-24 05/09/2017 Scott Brooke's Ranch by 0.069 0.073 <0.020 2.11 <0.020 2.04 <0.10 Irrigation Ditch ACMW-25 05/09/2017 Access road between 0.045 0.048 <0.020 2.70 <0.030 2.55 0.15 Neddenriep&Brooke ranches ACMW-26 05/09/2017 Access road between 0.207 0.196 <0.020 0.712 <0.020 <0.020 0.712 Neddenriep&Brooke ranches CONTROL 04/11/2017 East side near Post Office <0.050 4.97 GW-05 06/08/2017 Neddenriep 0.040 <0.040 <0.020 3.92 <0.040 3.76 0.16 GW-08 06/08/2017 Arant 0.057 <0.080 <0.020 8.10 <0.080 8.25 <0.080 GW-11 05/10/2017 Diamond Valley School 0.053 0.050 <0.020 0.468 <0.010 0.520 <0.100 GW-17 05/10/2017 Diamond Valley Ranch House 0.026 0.014 <0.020 0.528 <0.010 0.597 <0.100 Well HPR 04/04/2017 Harvey Place Reservoir 1.43 1.29 11.4 13.6 0.159 0.929 12.5 05/03/2017 Harvey Place Reservoir 1.45 1.43 9.93 12.6 0.126 1.17 11.3 06/07/2017 Harvey Place Reservoir 1.56 1.35 9.29 12.3 0.302 1.41 10.6 HVC-1 04/11/2017 HVC @ Pioneer Trail <0.020 0.162 <0.010 0.013 0.149 05/17/2017 HVC @ Pioneer Trail <0.020 0.128 <0.010 0.023 0.105 06/21/2017 HVC @ Pioneer Trail <0.020 0.628 <0.010 0.047 0.581 HVC-2 04/11/2017 HVC 250'Upstream Pond#2 <0.020 0.207 <0.010 <0.010 0.207 05/17/2017 HVC 250'Upstream Pond#2 <0.020 0.146 <0.010 <0.010 0.146 06/21/2017 HVC 250'Upstream Pond#2 <0.020 0.168 <0.010 0.014 0.154 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as C NC=Not counted Page 3 of 8 Alpine County Summary Report Total P Total P PO4-P NH3-N Total N NO2-N NO3-N TKN Dissolved HVC-3 04/11/2017 HVC 25 Downstream of <0.020 0.206 <0.010. 0.027 0.179 Meadow Crest 05/17/2017 HVC 25 Downstream of <0.020 0.137 <0.010 <0.010 0.137 Meadow Crest • 06/21/2017 HVC 25 Downstream of <0.020 0.161 <0.010 0.010 0.151 Meadow Crest MW01_5 04/11/2017 SW corner of ERB <0.010 0.371 MW02-50 04/11/2017 South side of ERB Pond <0.030 2.92 MW03-50 04/11/2017 Southwest corner of ERB Pond <0.200 9.72 MW04-50 04/11/2017 Hank Monk side of ERB <0.010 0.142 MW07-50 04/20/2017 North side of ERB Pond <0.010 0.437 MWOB-25 04/11/2017 South of Pond 1 <0.010 <0.010 MW11 04/11/2017 North of Biosolids building <0.010 0.106 MW12 04/11/2017 South of Biosolids Building <0.010 21.2 MW13 04/11/2017 South of Pond 2 along HVC <0.010 14.6 SW-01 04/04/2017 Carson River Woodfords 0.020 <0.010 <0.020 0.103 <0.010 <0.010 0.103 05/03/2017 Carson River Woodfords 0.058 <0.010 <0.020 0.144 <0.010 <0.010 0.144 06/07/2017 Carson River Woodfords 0.050 0.013 <0.020 0.127 <0.010 <0.010 0.127 SW-02, 04/04/2017 Indian Creek Upper 0.031 0.013 <0.020 0.147 <0.010 <0.010 0.147 05/03/2017 Indian Creek Upper 0.026 0.016 <0.020 0.150 <0.010 <0.010 0.150 06/07/2017 Indian Creek Upper 0.023 0.012 <0.020 0.146 <0.010 <0.010 0.146 SW-03 04/04/2017 Indian Creek Mid 0.042 0.012 <0.020 0.325 <0.010 0.158 0.167 05/03/2017 Indian Creek Mid 0.066 0.014 0.031 0.447 <0.010 0.028 0.419 06/07/2017 Indian Creek Mid 0.053 0.015 <0.020 0.166 <0.010 0.030 0.136 SW-04 04/04/2017 Indian Creek Lower 0.052 0.016 <0.020 0.450 <0.010 0.233 0.217 05/03/2017 Indian Creek Lower 0.122 0.021 0.026 0.516 <0.010 0.057 0.459 06/07/2017 Indian Creek Lower 0.087 0.024 <0.020 0.359 <0.010 0.034 0.325 SW-05 04/04/2017 Carson River Paynesville 0.023 <0.010 <0.020 0.107 <0.010 <0.010 0.107 05/03/2017 Carson River Paynesville 0.068 <0.010 <0.020 0.147 <0.010 <0.010 0.147 06/07/2017 Carson River Paynesville 0.046 <0.010 <0.020 0.133 <0.010 <0.010 0.133 SW-06 04/04/2017 Carson River Stateline 0.022 <0.010 <0.020 0.120 <0.010 0.010 0.110 05/03/2017 Carson River Stateline 0.114 <0.010 <0.020 0.260 <0.010 <0.010 0.260 06/07/2017 Carson River Stateline 0.050 <0.010 <0.020 0.139 <0.010 <0.010 0.139 SW-07 06/07/2017 Fredericksburg Ditch 0.108 0.049 0.024 0.570 <0.010 0.043 0.527 SW-08 04/04/2017 Irrigation Ditch 0.079 0.026 <0.020 0.919 <0.010 <0.010 0.919 05/03/2017 Irrigation Ditch 0.397 0.075 0.026 3.06 <0.010 0.037 3.02 • 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 ACMW-09D 06/08/2017 Diamond Valley Ranch 7.85 2.17 7.11 <1 ACMW-10 06/08/2017 Diamond Valley Ranch 17.9 5.67 6.89 <1 ACMW-11 06/08/2017 Diamond Valley Ranch 7.07 2.14 4.07 1.02 ACMW-14 06/08/2017 Diamond Valley Ranch 15.9 5.24 6.48 <1 ACMW-15 06/20/2017 Diamond Valley Ranch 6.60 1.57 3.86 <1 ACMW-16 06/20/2017 Diamond Valley Ranch 11.7 3.35 5.68 3.68 ACMW-17 06/20/2017 Diamond Valley Ranch 8.08 2.35 4.60 1.11 ACMW-18 06/20/2017 Diamond Valley Ranch 7.46 2.02 3.38 <1 ACMW-19 06/20/2017 Diamond Valley Ranch 25.8 8.08 9.10 1.73 GW-05 06/08/2017 Neddenriep 15.8 5.38 20.6 3.19 GW-08 06/08/2017 Arant 14.4 5.31 35.7 3.67 HPR 04/04/2017 Harvey Place Reservoir 4.28 13.0 2.83 32.3 6.98 2.12 57.0 05/03/2017 Harvey Place Reservoir 2.11 13.8 3.14 32.8 7.17 2.07 55.8 06/07/2017 Harvey Place Reservoir 12.3 14.5 3.39 35.5 7.76 2.18 56.2 SW-01 04/04/2017 Carson River Woodfords 5.86 1.47 2.92 0.879 0.28 22.6 05/03/2017 Carson River Woodfords • 5.10 1.44 2.26 0.921 0.23 19.9 06/07/2017 Carson River Woodfords 4.71 1.31 1.92 0.897 0.20 18.6 SW-02 04/04/2017 Indian Creek Upper 5.82 1.46 5.40 1.25 0.52 34.7 05/03/2017 Indian Creek Upper 7.67 1.80 6.33 1.60 0.53 32.5 06/07/2017 Indian Creek Upper 6.55 1.40 4.16 1.35 0.38 27.5 SW-03 04/04/2017 Indian Creek Mid 7.34 1.96 6.12 1.34 0.52 32.1 05/03/2017 Indian Creek Mid 7.44 1.92 4.68 1.82 0.40 26.1 06/07/2017 Indian Creek Mid 7.09 1.74 3.69 1.34 0.32 23.2 SW-04 04/04/2017 Indian Creek Lower 8.96 2.48 6.55 1.35 0.50 29.3 05/03/2017 Indian Creek Lower 7.59 2.13 4.70 1.78 0.39 25.4 06/07/2017 Indian Creek Lower 8.39 1.67 3.90 1.39 0.32 22.3 SW-05 04/04/2017 Carson River Paynesville 6.01 1.51 3.20 0.931 0.30 23.7 05/03/2017 Carson River Paynesville 5.40 1.49 2.47 1.00 0.24 20.5 06/07/2017 Carson River Paynesville 4.83 1.29 2.00 0.897 0.21 19.0 SW-06 04/04/2017 Carson River Stateline 6.13 1.53 3.26 0.957 0.31 23.7 05/03/2017 Carson River Stateline 5.49 1.57 2.54 1.09 0.25 20.4 06/07/2017 Carson River Stateline 4.82 1.36 2.06 0.910 0.21 19.2 SW-07 06/07/2017 Fredericksburg Ditch 12.4 2.94 5.58 4.04 0.37 20.1 SW-08 04/04/2017 Irrigation Ditch 9.62 2.44 14.8 2.38 1.10 46.5 05/03/2017 Irrigation Ditch 16.2 3.47 16.6 2.20 0.98 38.6 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as C NC=Not counted Page 5 of 8 Alpine County Summary Report Total E.Coli Collform Chromo Chromo ACMW-01AW 04/05/2017 Main Dam <1 <1 ACMW-01BE 04/05/2017 Secondary Dam <1 <1 • ACMW-02N 04/05/2017 Access Gate <1 <1 ACMW-02S 04/05/2017 Access Gate 1.0 <1 ACMW-04W 04/05/2017 Gansberg <1 <1 ACMW-06S 04/05/2017 Celio <1 <1 ACMW-08N 05/23/2017 Diamond Valley Ranch <1 <1 ACMW-09D 06/08/2017 Diamond Valley Ranch 1.0 <1 ACMW-10 06/08/2017 Diamond Valley Ranch <1 <1 ACMW-11 06/08/2017 Diamond Valley Ranch <1 <1 ACMW-12 05/10/2017 Diamond Valley Ranch <1 <1 • ACMW-13 05/10/2017 Diamond Valley Ranch <1 <1 ACMW-14 06/08/2017 Diamond Valley Ranch <1 <1 ACMW-15 06/20/2017 Diamond Valley Ranch 5.2 <1 ACMW-16 06/20/2017 Diamond Valley Ranch 1.0 <1 ACMW-17 06/20/2017 Diamond Valley Ranch <1 <1 ACMW-18 06/20/2017 Diamond Valley Ranch 1.0 <1 ACMW-19 06/20/2017 Diamond Valley Ranch <1' <1 ACMW-20 05/09/2017 Diamond Valley Rd- <1 <1 • Paynesville ACMW-21 05/09/2017 River Ranch Rd 6.3 1.0 ACMW-22 05/09/2017 Fredericksburg Ln <1 <1 ACMW-23 05/09/2017 Scott Brooke's Ranch by <1 <1 Irrigation Ditch ACMW-24. 05/09/2017 Scott Brookes Ranch by <1 <1 Irrigation Ditch ACMW-25 05/09/2017 Access road between 62.0 <1 Neddenriep&Brooke ranches ACMW-26 05/09/2017 Access road between 387.3 9.7 Neddenriep&Brooke ranches GW-05 06/08/2017 Neddenriep <1 <1 GW-08 06/08/2017 Arant <1 <1 GW-11 05/10/2017 Diamond Valley School <1 <1 GW-17 05/10/2017 Diamond Valley Ranch House <1 <1 Well HPR 04/04/2017 Harvey Place Reservoir 127.4 <1 05/03/2017 Harvey Place Reservoir 1624 1.0 06/07/2017 Harvey Place Reservoir 15000 4.1 SW-01 04/04/2017 Carson River Woodfords 165.8 1.0 05/03/2017 Carson River Woodfords 93.3 6.3 06/07/2017 Carson River Woodfords 103.9 <1 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/10emL Temp as C NC=Not counted Page 6 of 8 Alpine County Summary Report • Total E.Coli Coliform Chromo Chromo SW-02 04/04/2017 Indian Creek Upper 206.3 2.0 05/03/2017 Indian Creek Upper 1203.3 2.0 06/07/2017 Indian Creek Upper 1396 172.3 SW-03 04/04/2017 Indian Creek Mid 195.6 4.1 05/03/2017 Indian Creek Mid 135.4 8.6 06/07/2017 Indian Creek Mid 1081 127.4 SW-04 04/04/2017 Indian Creek Lower 214.2 9.7 05/03/2017 Indian Creek Lower 2400 40.8 06/07/2017 Indian Creek Lower 7330 1785 SW-05 04/04/2017 Carson River Paynesville 52.8 2.0 05/03/2017 Carson River Paynesville 93.3 2.0 06/07/2017 Carson River Paynesville 260.2 21.3 SW-06 04/04/2017 Carson River Stateline 161.6 88.4 05/03/2017 Carson River Stateline 110.0 6.3 06/07/2017 Carson River Stateline 307.6 22.8 SW-07 06/07/2017 Fredericksburg Ditch 5475 272.3 SW-08 04/04/2017 Irrigation Ditch 3076 1.0 05/03/2017 Irrigation Ditch 1725 <1 • Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp asC 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 04/04/2017 Harvey Place Reservoir 0 0 0 051 2250 0 05/03/2017 Harvey Place Reservoir 0 0 0 0 0 0 0 06/07/2017 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 04/05/2017 11:19 AG55509 6.00 5493.13 5,487.13 ACMW-01 BE Secondary Dam 04/05/2017 10:43 AG55510 2.23 5503.55 5,501.32 ACMW-02N Access Gate 04/05/2017 12:03 AG55511 7.34 5469.70 5,462.36 ACMW-02S Access Gate 04/05/2017 11:44 AG55512 7.73 5471.60 5,463.87 ACMW-04W Gansberg 04/05/2017 09:20 AG55513 15.37 4919.89 4,904.52 ACMW-06S Celio 04/05/2017 10:11 AG55514 15.26 5223.50 5,208.24 ACMW-08N Diamond Valley Ranch 05/23/2017 10:20 AG56214 2.44 5464.45 5,462.01 ACMW-09D Diamond Valley Ranch 06/08/2017 10:38 AG56431 17.43 5510.56 5,493.13 ACMW-10 Diamond Valley Ranch 06/08/2017 11:38 AG56432 24.38 5534.19 5,509.81 ACMW-11 Diamond Valley Ranch 06/08/2017 11:13 AG56433 12.93 5503.01 5,490.08 ACMW-12 Diamond Valley Ranch 05/10/2017 09:12 AG56035 22.13 5525.04 5,502.91 ACMW-13 Diamond Valley Ranch 05/10/2017 09:46 AG56036 8.56 5554.55 5,545.99 ACMW-14 Diamond Valley Ranch 06/08/2017 09:31 AG56434 16.10 5547.20 5,531.10 ACMW-15 Diamond Valley Ranch 06/20/2017 09:24 AG56600 3.61 5500.60 5,496.99 ACMW-16 Diamond Valley Ranch 06/20/2017 09:50 AG56601 8.86 5484.53 5,475.67 ACMW-17 Diamond Valley Ranch 06/20/2017 10:17 AG56602 4.85 5504.92 5,500.07 ACMW-18 Diamond Valley Ranch 06/20/2017 10:53 AG56603 5.24 5470.56 5,465.32 ACMW-19 Diamond Valley Ranch 06/20/2017 12:29 AG56604 7.00 5417.25 5,410.25 ACMW-20 Diamond Valley Rd-Paynesville 05/09/2017 10:02 AG56015 7.30 5090.30 5,083.00 ACMW-21 River Ranch Rd 05/09/2017 10:28 AG56016 7.51 5011.33 5,003.82 ACMW-22 Fredericksburg Ln 05/09/2017 10:57 AG56017 16.93 5019.28 5,002.35 ACMW-23 Scott Brooke's Ranch by Irrigation 05/09/2017 13:43 AG56018 16.17 4978.35 4,962.18 Ditch ACMW-24 Scott Brooke's Ranch by Irrigation 05/09/2017 13:14 AG56019 23.05 4953.25 4,930.20 Ditch ACMW-25 Access road between Neddenriep& 05/09/2017 11:30 AG56020 6.00 4942.24 4,936.24 Brooke ranches ACMW-26 Access road between Neddenriep& 05/09/2017 12:03 AG56021 7.17 4895.60 4,888.43 Brooke ranches CONTROL East side near Post Office 04/11/2017 09:44 AG55582 63.95 6345.20 6,281.25 MW01_5 SW corner of ERB 04/11/2017 11:15 AG55583 58.70 6328.00 6,269.30 MW02-50 South side of ERB Pond 04/11/2017 10:15 AG55584 45.25 6314.60 6,269.35 MW03-50 Southwest corner of ERB Pond 04/11/2017 10:40 AG55585 40.61 6310.10 6,269.49 MW04-50 Hank Monk side of ERB 04/11/2017 11:55 AG55586 26.69 6304.40 6,277.71 MW07-50 North side of ERB Pond 04/20/2017 15:02 AG55762 20.30 6302.20 6,281.90 MW08-25 South of Pond 1 04/11/2017 13:35 AG55587 8.10 6258.30 6,250.20 MW11 North of Biosolids building 04/11/2017 11:21 AG55588 32.01 6296.00 6,263.99 MW12 South of Biosolids Building 04/11/2017 11:42 AG55589 21.46 6288.80 6,267.34 MW13 South of Pond 2 along HVC 04/11/2017 13:40 AG55590 3.70 6263.40 6,259.70 Alpine County Soils pH EC %Sat TKN NO3-N Total P Exch P SO4 CI S2A Celio Ranch 05/31/2017 7.93 4.21 64.6 3860 2.42 422 7.67 290 >880 S3A Bently Ranch 05/31/2017 5.48 0.308 40.1 3420 3.54 341 39.7 14 12.7 S4A Gansberg Ranch 05/31/2017 6.63 0.543 38.1 2140 7.24 171 16.0 14 12.4 S5A Gansberg Ranch 05/31/2017 6.03 0.396 36.0 1810 6.21 368 7.43 13 8.54 S6A Neddenriep Ranch 05/31/2017 7.61 0.458 42.1 2460 11.7 265 8.83 15 11.7 S7A Bruns'Ranch 05/31/2017 5.78 0.309 37.2 2440 7.65 352 8.24 12 <5.5 CEC Cu Mo K Ca Mg Na SAR %Na S2A Celio Ranch 05/31/2017 33.1 10.1 0.05 2585 205 155 475 6.09 7.03 S3A Bently Ranch 05/31/2017 20.8 9.6 0.05 1542 14.8 2.86 25.8 1.61 1.06 S4A Gansberg Ranch 05/31/2017 21.1 19.8 0.06 6110 49.0 11.6 65.2 2.17 1.86 S5A Gansberg Ranch 05/31/2017 18.1 19.6 0.06 3068 31.5 5.70 36.7 1.58 1.02 S6A Neddenriep Ranch 05/31/2017 20.1 20.8 0.06 3523 56.0 7.39 23.1 0.77 <1 S7A Bruns Ranch 05/31/2017 16.9 24.5 0.06 4569 32.5 6.89 4.98 0.21 <1 Page 1 of 1 Sample Comments Site Date Time Comments HVC 5 04/11/2017 13:19 No Flow. Stanidng water only. HVC-5 05/17/2017 14:00 No flow, standing water. HVC-5 06/21/2017 15:25 Standing water. Creek is so high it is backing up into ditch. It is NOT storm water MW07-50 04/11/2017 11:25 No access to well due to snow SW-07 04/04/2017 12:23 Dry 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: 0 1. if. I // „.,2,--- EMERGENCY POND MW FIELD MONITORING RECORD Samplers: . ij�f -1/ ./C Purpose: Preservative Std Check - Depth to Well Water Calc Actual I Well Casing Depth to Column Water to Water , Temp EC Bottom Diameter GW Height Purge Purged U •- s O Q Site ID# Time 'C pH pS/cm ft inch ft ft Gallons Gallons .. _ = (5-' pH EC COMMENTS G555 d, V 111( Iii° 60 �1 �S�yS I ,, v; CONTROL80.90 2 - I Mw1 .5 A655583 illi ?)' �J ( ma- c i1 I,T) s 65.80 2 t E MW02-50 A655584 AGI s- `i 'y 6.b3 3Z�50.90 2 ys,zs 6 1. 0 :3 AG5558 �b 1-1, �� t1 Z 50.80 2 Lia/ /o`¢Z ( 'f Li L,• , MW03-50 2 AG55586 I I`�( �: ? l7-y 3 j 0� � �t ay, 91,1 �� MW04 50 • 51.00 2 MW07-50 e t t.�,u �c �,S �;� C Ci �$ — �o.3d �2. s AG S` 44,,,2_- /d Chivy. 52.60 2 _ , , �� llZS MW08-25 • A6555 335' T,b C`�?7 17 I 20.60 2 �„I D 12,•c .,2 31,S V; MW11 /4-rt-c--5-,,-cis 41.0 2 MW12 fr n 1 31.50 2 MW13 H--3 T59' 14.40 2 AG5/s9 +ko',;,I,Awt\e:�+ �t.3• " ut"�G ° " Affil.i Trip Blank 0. 3c A M �. I' Groundwater samples shall be collected only after>_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:\LablForms\Field Sheets\Field ERB.doc 11/8/2012 J �/ 1 -r Flushing Record Date: {I r F Temp EC, Minutes Gallons °C rr pH �S - Well Time Flushed 'Flu'shed +5%,.?. #5%,` ±5% Sampler" Comrrients .'. -I-,I- i L v ) 2- 1 I <<LI 1 S� ` ! I 0 I61 jc 2 9, 2_ 4(7 32)71 )66- ) s I, 1/ 641,3327- e2 LA) /0.3o ,3- ();.-11 '124• !D Lt 3 1127 10-10 r�� X1 j �' (; N `I2 3 1105 3 I I ,0 7.3'1 N3 IIjc 3 2 ► S , - ?,)- Ics's (Nis I'S 5 911 J (1 vel - c'Y i/q5' 6, 60 /Uy-- f11 6 11s-0 10 3 Se z (o,'O ices 1156" /5- s G. 3 /63 f ti w ' ° "6 13,2-s -3t7 6 1330 - j -3•b (,o ( )3`b 1335 y 3, z.6 sn q / • ► . 6 q. 0 /SI (, v4, 01 0;h C- V kr 5 t✓ • Note:Temp,pFl,EC must stabilize±5%for successive measurements taken in intervals>5 minutes. ):\Lab\Forms\Field Sheets\Monitor Well_Flushing_Record.doc "y SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: " .. EMERGENCY POND MW FIELD MONITORING RECORD Samplers: • D ,„ p Purpose: Preservative Std Check Depth to Well Water Calc Actual Well Casing Depth to Column Water to Water Temp EC Bottom Diameter GW Height Purge Purged o g Z O Site ID# Time °C pH pS/cm ft inch ft ft Gallons Gallons eij _ _ > 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 • W1.\ Mw11 6555 1, 1 6))1• )45 71 41.0 2 '/; 1- 12 A6555 � ��- (�� — °Z/L(D 31.50 (� ' 2 4,14, lo,V4 -1 MW13 AGS RIO c(, ` 7, 13 gs 6 14.40 2 3A 1(;,16 \,%2, Wen t l" z -1 . q TripBlank 4-1 tom, s r Groundwater samples shall be collected only after>_1 well volumes Gallons to flush=1 x 7.48 x 3.14 x 0.0832 water column height have been flushed and Temperature,pH,and EC measurements Gallons to flush=0.17 x water column height(ft) pH Std Check uses a 7.00 buffer,pH meter must be re- have stabilized to approximately±5%for each successive Water column height=depth of well-water level standardized if resutt edceeds 7.00±0.05.EC Std Check measurement taken in intervals>_5 minutes. for 50'well whose water level is 35 feet from ground level: uses a 200 pS/cm standard Water column height=50'-35'=15' File:D:\Lab\Forms\Field Sheets\Field ERB.doc • warm» Flushing Record Date: 61)`r Temp EC • <Mtnutes Gallons °C pH p$; Well Time Flush"ell ' Flu"shecJ, : . ±5% ±5'l° �:5% -_ Sampler Comments •; WN - t I it ?0.1'nfl';Vij ii11 .2 6.2.f 26e'r iia } 2:b lb.() ii25 (0.7 (AAA- (Dti ivy 3 i3ai Note:Temp,pH,EC must stabilize±5%for successive measurements taken in intervals>5 minutes. >:\Lab\Forms\Field Sheets\Monitor Well_Flushing_Record.doc Still I M I AHUt I'UI3LIC UTILITY DISTRICT Date: 04- 0Z-11. ACMW FIELD MONITORING RECORD A. Samplers: i�<u_oAt•e- ,� fv�e�ao ;�. Purpose: � 7.- l� Preservative Std Check Depth to Well Water Calc Actual - Depth Well Casing Column Water to Water a, Site ID# to GW Temp EC Bottom Diameter Height Purge Purged o •= H2SO4 0 Time ft °C pH pS/cm ft inch ft Gallons Gallons, v in _pH= = _ pH EC COMMENTS ACMW-01AW – • ti 22.6 2 itp-la ,2b'� L.A.. I,6 ✓ AG55) n i 14'k ACMW-01 BE Ills 2,11 iL AL l40 , 23.8 2 21.5-9' gids 1. 11 _i___— ACMW-02N - 7.3 12..4 Li?) lb2 34.1 2 210-7t, i4 50 I,I, V G5 d ;2 Mi. ACMW-02S \ 1- 713 10,2 L . (.D It 21.9 • 2 1�4tiT 2 570 l'o I ACMW-04W ttU 655L : t2.:10 A 1 .31 -411 I l5�•� -1 29.0 2 U.61 2+)2 1,5 1'6 ,f ;u»»)g 4') 14 i1 A ACMW-06S 4v' /5,21,, tt1/41 "x,14- 1446 .29.9 2 ti-w 2-4\ 50 i.t, l • Trip Blank Aa `. J :i, r Temperature of Control ;I r . ,. .a � ,�.x? ;4__ � •�, r �, .,a ,4„ �.: , ��a\,�I �a,, , �� a. » {� � -�. . . . ,,W./2.4T,'L� a� �� , t , , , ,-g.'-a.. b ..a L ti. '�. � �, �a •y{t� ,,. ,� t a*�a::.�r 'i. v�}t;r,'�-.TF-To " ,.. 1 't,,'H"w �� ,.,b v.� �:t., „0 4�t�.t,�t,..,t s . ;�._ i# f :��'��i�N !.>y;��. ,j a t A . r f .. K .µ '4.t t':- ,Vt. g.., .,,«+r res w , xfit c r k off,:., t t,v q7, �n x ' �.:�s- <.� :�. a .,- �`* 7'++•tt I •�S ,6..��. �,_., .... �1 F?'�a �(......-.,�. "� x h.i A� k �� c� tikl �,1 is piY'\t'. "�,Y`t�k;L,Z'.t�v i. ;�'"+ � ' ,t.. 9 ,,,5: .+ 9g - ,�,6,„sy . 1.:•"x4',4 „t.:` \. -,,. .: Cf t r: -,:.0.ti (.4 't �.;: .+� .A.W.,c },•r ,V r .. when samples received ;:a? i= •j< � 4: '�a � � r .a;v.n ,� a � 7 t�i.., '9`�ra� � �:" �cr a• \ f^" < I�� r... xc ru, rPn.,-�;sou � „ ,.,�: Y . ... L?l ''r� hY p- d 5-g.&./q. ,i r%h)ie.*:::,r,- -,Fi .:'. v, 7; 3a# "-E s t 1 cL-" ri.;e:.+'': tt srl .,.P '','0 1 1\'*^y,'': d.`.i. 5q `0. r,.+ T.`,M1'',`".,. r'�,\ .;',.,,i!.,,,,,,7.,,..,y p '3-act.x :r i�t+ ..v ��,y .A'�c -2.� r,9r:: '�:,` 1 �4�sT x�w`yS.,a c 4's ,};rv ' ,' 'W.,1ro�i s� ,11:4;,ai.t+� ti" 1�,� �Y� , �.c,n=��Y r'�'•• 'K '1?'�'p +,.�.,,-. \V ,.r �,�-.. i. ,.7 3^. '? ;+,wp.E7r' ... .y-.nr d I-�c� "' �' y>y:y'+ ��,., ?' 'A� y _,�'`<. tlx s"�. '; +��= N,� '�sa _.,,rJ : ice .+a .>> at Labx .}tea py,'4r , ,� };� . .}..s2 �•: {?'a. 4s ?:.t �r y<H.:-f..6`,,,,,Ar.'- {`...°,,,,,,,-..044::i i,,t'�tie'.a.i:-.?.VA ,fiwS ,r; 4'r3tia.�5;4a: 6 tii,y,„ Wigk"�ttd Wr�. �4:`y Ss' '. SiY.:'+.+.:4-;�x}ti`,... . d 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' nAl.1-Apnrrne1ridalrl Chc°1c1Fi°Irl Arum, Flushing Record Date: 04-0 C d "'r ,E. �, i *�. d t: 4 f'' ,�a x., y p4 d ", Ci �'c x'' �' '§ p 'Yl '. �'� s ; §''t z s� � � Tem � � e 'Y ' ,r<R z y ,o, ',t;„ F ✓'sx_'��i"�r 6 �t 9,.p' E § 0 r� "z O. 1415%w �, %" xis' ,x u"x a3, s ,:quite.�-�„Flushed ..�•.,F>�lushedx��~..*�/?, .��SSIo,.*��, ,�.�<:. _, �Sampler�-, �...r .��ommenfs��.�N��, / � 5”. i2. ti-.fib 1 11.0 L,)i 221 ku-tw D(,5 t 4 50 L•Lf 6 95 L3°? J 53� IDt5;0 13 731 1,L(, 1)36. rr,e1,-oP>r iteitleivW P\Cti1VS-0 k 015 lob 2`1) 11.0 ib41 it,3 !tip 0.`tc- 141 ActA� - \NW Pilo • I It _ i..5 \o. 6,ct5 `� ci'5S II 1 Zto,5 (G1) IBJ (91co CbC tG11 (2,2 L.15 Note:Temp,pH,EC must stabilize t 5%for successive measurements taken in intervals>_5 minutes. ):\Lab\Forms\Field Sheets\Monitor_Well_Flushing_Record.doc Group 2 _. SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: 0 5 ' 0 7 - 1 t lit ACMW FIELD MONITORING RECORD Samplers: LD141 i ) 7 Purpose: Preservative Std Check Depth to Well Water Calc Actual Depth Well Casing Column Water to Water at to GW Temp EC Bottom Diameter Height Purge Purged o •4-i I-12SO4 z o Site ID# Time ft °C pH pS/cm ft Inch ft .ft• :c.Q Gallons . rn pH= _ > JH EC COMMENTS , ( 3d 0,9 60e I111,,1' 3 (GrS 7 ( z / / / ACMW-20 AG% ;}°�°� � 21.5 2 Z On Diamond Valley Rd,near SW-05 ACMW-21 to l .. -16.1q (O" 30.0 2 27..S ((o On River Ranch Rd,East side of Hwy 88 t51 ACMW-22 1�5� rq 59.5 2 1�' V1Y / / On Fredericksburg Lane,near S7 i ACMW-23 AG51� 50.0 2 33� �. (2 Upstream of SW-15 A AG560.p; 131 1'' o� I�(• �`f 71 Z1.c J Zli° 4Z. 1 / ACMW-24 V-�0 50.0 2 Downstream of SW-15 • //''�� W AG56U.. " '�1 6�{ 1/i" (- 30.0 2 /� I Z 7 ` L Ly Behind Neddenriep's on Westside Lane: ACMW-25 Y M—2.� '^-� "'4�1 17S- ��-1� L�' dirt rd between Hwy 88 and Carson River ACMW-26 ""� 9 '? �� N " 30.0 I 2 v�'NE 4 ' On Westside Lane @ Stateline TripBlank A65002L a-51 1 L'L,, c nidal t... .,i,; Y „,,K.,,,,,,,,/,0,,,:..:4 o x:. ,w p cc s I m. ;:d° t°': r w R Zt ”"a a '`4°b v k Temperature of Control — I— _ t w .- ,, . , W x �f T 1,G,:,, 4. 1 t nz `3 � 4 � , . ;'. I ;7;A,-,,,,,,,„.,, i n, e.-- s <' � 77 X � tat � :.tN� y� Y �,�•: 4r -^-t t a^:"'f J 9 r",,,::4•'-';=4 � t ..s, h, 4+ „, T r ) „.ty J i •:_..:A.,,, 7 ,• Y , it ,, i.....� l,,, s ti4,Mr when samples received (j y t> { { }, t a� y piej `"V L '� h '` (� V �j C,_-- - d t 1 �. .z a -��,4 .4�'ya 'r�t°� s'�`:��"� '�!B' -y jx j c ` � q. e ,,..ti � �' `'��`a��' F'r�,.'t :: at Lab �._. . . Gallons to flush=1 x 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>_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.0 nk\c,..,,.°\ctol.+QAoolc\clol.l ermmMt_on tr. oa.+„r (D'Ch \n. Imon,'a Flushing Record Date: e,")5 ' cT• I --f . ------ ' -:',-reiiilyiz,f:: ::-f-- ',..:gq.-'. .- ,;t:':f :':.' , :-::..,H. •::',,' '''-,,' '''''''''-':'. ,&iioi4: -: ;'oc.;c!. ,-;.*".?: ,,: ,o,, ,.,,.,,,,.. ‘I :. ; -, .: . ';;':,"` (1'...76the' -iO.r6sliOd'.i .::Fhf:ihed..7 I:±'5%; ., ..•. •.0 . • , , '' rii ie'r- : i'- .':',Ccifiliiients 5 11. ( (0.23 ) 0 7 5.0 0157 9 1 O 1(41 ) d'- 15-C (o2- l 7. 1I, . C ;0, 9 6,o.8 151 ,4c4eiv- ;--/ icii -d- a 10, D ci .if ioi iimill 0 6 I 6 )3 "7-- fO'V I 'd- 16 -% e 3, 6, Pi 1b6 IIIIMMENIM (2- IMRE S-S -El MENEM NM 1 _ /Z g 11 IIIIIII -Cs- 1 t 5fie - IINI ININIIMItziollWAVAMIIIMEMIN 5faTfelar ths-EM . .- ( .. •• (2,3 ( ffin 1136 (rc [ 1- ( )- Inirgffliga MEI - 1111 131 i - 5. 6g, ' 31 SL ' 1..ill' --7a- NI , 7 ti. 1/5-1ail . c(c‘ 1103 MI -IV Do- 6.0c3-- ivc . , 44 MENESI. M. C2 ç ,lrl'ABIge wallffli Vi°', PI SIMMTIMIBI . MEM -TO FELJ ARM 1 t (0-- wm 30° Ii /co ki_ • -g i- go ti./ (: . . 1 i ' ea 1 o II. (P-711 7/g 3q F, Put- 14"9 Ci'd‘' 13 AC:1%T) - ' '' )- , f [', .5 */ 16,i 34-Z Is)-, ottsfaufk-e_i 33/ 131i 'I - Kii 'T-63 5S-1 13'13 1 ill% tga ,6,3- Note:Temp,pH,EC must stabilize±5%fi?r successive measurements taken in intervals 2 5 minutes. DALabTorms\Field Sheets1Monitor_Well_Flushing_Record.doc �tuup 3 1 *..)%.,‘J n /-%11%1Lruo�1� u I�.I i L/1�7 1 IlSllr 1 nate: ,O -10-�1- Ii ,Z> ( / /1=1/ ACMW FIELD MONITORING RECORD Sam lers:iyeloatich 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 a H2SO4 o Site ID# Time ft °C pH pS/cm ft Inch ft Gallons Gallons d. eii pH= _ , pH EC COMMENTS ACMW-07S 180.5 2 ACMW-08N • AG5�0�.i�a al auu.si1,(� lbtic 70.1 2 ha A. -E1oocteA. AG563 ACMW-12 Oltt i2.B «Uc 11 to, 73.5 2 5li-t 81, is I.b Ge.6 k t., ACMW-13 A65603 n 'Pp S.15 (v,” '650 20.0 2 LVtt L 4 lb 1.12 [-Iuti� A65603 GW-11 0x45 111 -1.,0n I- t.l, hG56038 ls.to GW-17 tiv.A- .. 62.5 t ,c1 IL AG56039 Trip Blank 0.12� C Temperature of Control ° In , .:; N a�,, 5� a 3yt 33i c �.':��,prfYRy � ki � 4 . . < �,,,,,r,,,,,„,,,,„,,,,,„,,,,„,,,,,,,,„., ,,$,.,„,,,„,,,,,,,,w,,,.„,„,,,,„,,.„,,,,,,„,„,;,, . $�t )� $, r;'f , ,.u �'"� =.v.�tu,w� ,� �i�s�.�... +S�h�v '' .`} $ <�.wr " :ti1 MiC _,1y" a � 5dr, . .,�a,4� we r.�k4. �a ,,,. tax .�7',A4,4' s .,r V4.5:0.0I4 r , � . :.>, it W. V'�ji1 '-�, � (. a % . :=, rSn, 5ti�_when sam les received ,e� . F ;u,x,A , ai i ;... � r ,a 1jha er � j � � "° t.r ,w ,t, r, �,,,,..44.. t �� 5 ��rat Lab fi, tfi Ri '4 f ; 0,t1,644:4p,Q, ,a ;;i, „..,,04,-4 ,n. � ' r ` }, d �;�, ,' r' + �` � � 4F� �� - .;',� • ,, r5na;3RMO,zs.3=A�i�S 4+"+* Y `.`:As_ xd 1w �< F «q"r�`X �.,�€ sin.� �� 'w' � . �:, ,w �:i.r5 � ,,,,,..4414v,-,..;',0 ��tX . `g }. .01,1 re, 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>_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,l°Mcnrn,c\ci.kl CheelOr;nlrl t/`hA1Al1hn,in 1 rinr 1/99/0n1l; Flushing Record Date: 16•Cr 34:70.--KWO T54:7176645 tglSt lagtZ:V&P.anag-iibM, OW2i7pH ' pS - Oa1174t/Y:L--.1'nfVM:;.efriTitife- TICiatiedtilF1héd0,1-:75°j ;*: t16\1.il '.1. ia.o 644 5-2 1.i- i; 6.11 jo truA0.. 25 (p.itWt 3.(IS 04, •{)--D 4-5 1,3/ Note:Temp,pH,EC must stabilize±5%for successive measurements taken in intervals a 5 minutes. flIni-aFnrrnelPicdr1 CkaotelIVInnitnr I/1/&f v1uUF1 J vvV 1 1 1 I 1°%1 Iv1.— 1 vul{—Iv ‘,..fa 11-1 I I 1.."IV I 1%1%01 vaL. Vd-L%- 1'r ACMW FIELD MONITORING RECORD Samplers: I'Veko-hiA ku.nO - Purpose: Preservative Std Check k Depth to Well Water Calc Actual Depth Well Casing Column Water to Water to GW Temp EC Bottom Diameter Height Purge Purged o 7, H2SO, o Site ID# Time ft °C pH pS/cm ft Inch ft Gallons Gallons .H= = pH , EC COMMENTS ACMW-07S 180.5 2 • ACMW-08N (�Sf21 fO11 `�.�`� i �� t5 not, 70.1 2 0,( 11,E 26 J J 1•� ACMW-12 73.5 2 ACMW-13 20.0 2 GW-11 GW-17 Trip Blank • Temperature of Control 33s r ' n� r, iyf .,.. . ,, ,zYrP } Rx Cx4/sw ,„) ,qdt{��•. o � >:r 9 ...vwx.�}«:•v7. s;hah_.e,:'iad r sf�rWi•,:.a.0k4.'.4.>,..•�'v V,p4�nn`, ':. scy�t"rrx�n ty ,;d amwhen samples received ,„ +1tir��Sti� 4f . J y .r � ` t4: �",N, �� rW Fo • °Ev ,, � a�\..'444V, ' ti< � ¢a1A �" 1 14 �„.•64FAkit) FS 'at Lab 3 .tk 4N ;m A , *S ik�h'�±s•,',. „<"�,v+wt• 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>_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•\I°h\Cnrmc\Cielrl Cheole\Cielrl A(`11111Nl:rn„n 7 Ant. vo/»nt Flushing Record Date: Temp,Tz 1Minutes- 0 ACIM\ 6 U1'. Ic`bi 1611 11111l , o• /.-1 • (91 -1.64 Ito ittb 11,(0 1(1 (6) tit, 441/0 • Note:Temp,pH,EC must stabilize±5%for successive measurements taken in intervals?5 minutes. DALabTorms1Field SheetsWlonitor Well Fhishino Record.doc Group 4 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: 0 .0`0- l ACMW FIELD MONITORING RECORD Samplers: ' xin bc. Purpose: 1 fl Okvjt.11 Preservative Std Check Depth to Well Water Calc Actual - Depth Well Casing Column Water to Water to GW Temp EC Bottom Diameter Height Purge Purged W, o H2SO4 o 8 Site ID# Time ft °C pH pS/cm ft Inch ft Gallons Gallons (7) pH= i o pH EC COMMENTS ACMW-09D AG534,31 tvv I1-1k3 GZ,S to,32, 91,1 45.1 2 21,1,1 'IAD c:1) 1-A, i ACMW-10 AG56437 -- - tt3) 1,A,,t) t i 38.5 2,3 (05( i62- 14.12 2 it 43 i4, i AGS ACMW-11 �r �`� 33.5 2 �\t) 0 �3 ►�• oto I/ 1011. 146 7-D i,,, AG56434 ACMW-14 oq�l 1� 1� ��o �,t cs1�- 30.0 2 l" ,� .II� �n I19 J AG5 435 -t-t7.6 61 GW-05 1M`k r ,\ 1,.,i. » Up I GW-08 1100 114 (,IL 3)1j I., / AGo3 Trip Blank oin Temperature of Control °� In6al - : when samples received - at Lab (,.C- 41 . . .i,,: ',''',.',,,.:'•J 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>_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' D:\Lab\Forms\Field Sheets\Field ACMW-Group_4.doc 1/22/2016 Flushing Record Date: WiNVA OST44.:4_,174,1 Wegfiglla*,;:lictfe 4.4T,pp4_ aubeit7n, Aft=4.W;9: IIIPI Ckb (O. t o t Ac - oit.D m if)13.5 .5 K-7) i7„g ,-3L• q.C13 fl (7.c /-„7)7_ qqRb - ACI,4\13-t) ItO‘ /, .034. ji• tTh4- LO • kt . c t , 1k3g Li "i j26.5* (b7 . Note:Temp,pH,EC must stabilize t 5%for successive measurements taken in intervals 5 minutes. DALab1ForrnsIField Sheets1Monitor Well Flushing Record.doc l7fOup o .7VU 11'7 I HI'7VC 1 UDLU.� U I ILI I T UIJ I Milo l Uate: u E7 ' < `' - ( T / /// t9i; (9-1/11. ACMW FIELD MONITORING RECORD Samplers: Pr/ g c Purpose: • Preservative Std Check Depth to Well Water Calc Actual • Depth Well Casing Column Water to Water to GW Temp EC Bottom Diameter Height Purge Purged y = H2SO4 a Site ID# Time ft °C .H S/cm ft Inch ft Gallons Gallons . t o".H= _ pH EC COMMENTS AG5 ACMW-15 613-1 �i 1)'1 6 ��a 29.5 2 25, ,� I it 6 / ACMW-16 AG56L° 0/50 � ,3 .,2—/ 1) r I, . �?�`�� 29.0 2 20.1 �.`� _ ACMW-17 Ni .�5 t ,(9 (0,14 ?0A 30.0 2 2J1 �,5 f (, 6 't ACMW-18 162 x.24 13,o (9.(t Hyl 28.0 2 /AM° 4.2 14- 7 (,( 'n ACMW-19 32.21 4u) RI 1,R 25/ 20.0 2 0,0 2.2 a , . Trip Blank 1,6 Temperature of Control s ��,� e 3, n�y } s�p;� ' , r , .. ;�� , , r~• ,,�. ; ... ..« . .. .{.,.. p , ' u."Iri � ,•;,, ,; %.i dy ra, ra, ;,,,. rw yr pJ.K °Ytl 3' u• s4 t,l;ar w, a , 1. s� A�'$-.1. ,a�'Wa ;., A's , �..r'J ,,,,' r,. u Y t;t 2 '3 dz. �Y;i% .f ,y i PA - ; , "sr :.;.s , • -7-r, G � ,:.� ;� <��_ •,. ��.; . . � , :�, �� ;��• ,,��""�� ..til. b r� � � � � r , �;�- ��4,0 .,��, ,„ when samples received � �.� ,�:.�, �•;' � ,r.,; _�4�,� �,�� •k,�.r�.y,.,,' . .,,,�� „ . ��:... . � :.� >,L�a�.- ��sd:a �;.�. �� €� PPVi: m' 1, ; r �S r9 yvikip'. 24r ''' .- 4.t� tr� :'S )ice, 7'4' .� ''''' �4+4.1%-'7.4`. l� `. � x ,N: � +.g , l / ' . sem t 4 K ° `y�'.rn' v v r'W % *S�Qx:( yY X y } ., •' 0.3 'd `a u:4. .� `r r.% ,. ; -_.`.y'pxas. n , at Lab 1`"y t`C .411' 4s!- 4,1 4371 yx _ t 'r,�( As k . ' ' ,;, _r �` + 4' " .` '. e: : "„ -1.' V ,,, ` ,,:.r is n._:r5......,ri 4 41 ;._. . en r ;: g..7 _ .1 u�.,# ?i4 ';`` ''�' ii4`„nth :c 'yds .. �t n irc' v.' „4,,,,ew,, , �,e^ %r� f Minimum gallons to flush=1 x 7.48 x 3.14 x 0.0832x 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) have been flushed and Temperature,pH,and EC measurements Water column height=depth of well-water level standardized if resslt exceeds 7.00±0.05.EC Std Check have stabilized to approximately±5%for each successive for 50'well whose water level is 35 feet from ground level: uses a 200 NS/cm standard measurement taken in intervals>_5 minutes. Water column height=50'-35=15' 11\I ehunrmc\Linw She°le\gel.l prnnIN_rrnnn c rinn 111nma Flushing Record Date:.,Minute Gallons 2C p5 06 ' 7-013. '- • ' ..1Sampler .;,%,•' :COrniiients,'• i .oC,J10 tpo OW iso.10 (VIM' 13 12A t,,O1 (g 2.0 o90 a 2 g,25 (I 0111V -7 16 11,c 116 09-50 1 0.3 G .5- I (19- 4c11w- f tooc 100i 9-, la.° (50-5L /oil -9- cs (lip ' 3A lc P. I /4 (0, -6 (L'.31/ V, / hula- ib 10% •kolk) 2,1 0,6 (9,1,1 i6L% VL (1.t lq.(0 IDA Aavva - tt1 12_11 R- 5 (1.5 -1-.1,) IL5 ift.b lito Note:Temp,pH,EC must stabilize±5%for successive measurements taken in intervals 2 5 minutes. ):11..ab\FormsTield Sheets\Monitor_Well_Flushing_Record.doc