The URL can be used to link to this page

Home My WebLink AboutSTPUD 4th Quarter 2021 Reclamation Permit Monitoring Report �tgr South Fublic Utility District 1275 Meadow Crest Drive•South Lake Tahoe•CA 96150-7401 Phone 530 544-6474•Fax 530 541-0614•wwwwstpud,us Tuesday February 7, 2022 Michael Plaziak California Regional Water Quality Control Board - Lahontan Region 2501 Lake Tahoe Boulevard South Lake Tahoe, CA 96150 RB6-Lahontan@waterboards.ca.gov Subject: Reclamation Permit Monitoring Report, 4th Quarter 2021 Mr. Plaziac: Enclosed is the South Tahoe Public Utility District's 2021 4t" quarter self-monitoring report for October through December 2021. The South Tahoe Public Utility 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 15.99 MG treated effluent was pumped to the ERB between December 23 and December 28, 2021. This was done due to power reliability concerns at Luther Pass Pumps Station. The ERB was drained between December 29, 2121 and January 4, 2022. There was no wastewater remaining in the ERB on January 5, 2022. The ERB was inspected on October 20, November 30, and December 20, 2021. The reports are attached. Export Pipeline The District's Final Effluent Export Line was not inspected this quarter. Wastewater Reclamation Permit Compliance This monitoring program provides for continuous surface water monitoring, except during the months of December, January and February when only SW-01, SW-05, and SW-06 are LRWQCB - Page 2 monitored. 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, John Thiel General Manager / Engineer JThiel(astpud.dst.ca.us D:U_ahontan\Reports\2021 4th Quarter Report doc LRWQCB - Page 3 Enclosures: Monthly Report Summary Pages Operational problems and maintenance activities. 2 Wastewater Treatment plant 6 Permit Compliance Record 1 Emergency Retention Basin (ERB) Inspection report. 6 Export Pipeline Inspection Report: 0 Sample site locations 2 Map of Alpine County sample sites 1 Harvey Place Reservoir recycled water storage 2 Final Effluent, HPR & DD-01 - Trihalomethane Test Results 0 Alpine County and Tahoe Basin Surface waters, Groundwaters, and HPR 7 HPR 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 7 Alpine County Monitoring Wells Purge Records 10 Photos of Irrigation ditch flows 0 Total pages 48 pdf: Lahontan Regional Water Quality Control Board LRWQCB Executive Officer— Michael Plaziak LRWQCB Senior Engineer— Robert Tucker LRWQCB Control Engineer—Trevor Miller Alpine County Board of Supervisors Alpine County Health Department— Dr. Richard Johnson Alpine County Health Department— Dennis Lampson Washoe Tribe Woodfords Community Council Chairman — Jim Irvin Washoe Tribe Environmental Specialist— Coralee Ditman Nevada Division of Environmental Protection — Birgit Widegren Nevada Division of Environmental Protection — Jean Stone STPUD Alpine County Operations Lead — Jason Glaze STPUD Manager of Operations — Jeff Lee STPUD Operations Chief Plant Operator— Chris Siano STPUD Hydrogeologist — No Bergsohn STPUD Laboratory Director— Dan Arce STPUD Contract Commission — Dr. Richard Harvey D:\Lahontan\Reports\2021 4lh Quarter Report doc Operational Problems and Major Maintenance Activities October— December 2021 Wastewater Treatment Facilities • The Wastewater Treatment Plant exported fully treated effluent to the Emergency Retention Basins beginning December 23, 2021. This was due to concerns regarding the reliability of electrical power and fuel availability for our 2 MW generator at Luther Pass Pump Station during the December storms. All water at the ERB has been returned to WWTP and exported to Harvey Place Reservoir. • The District once again modified Covid-19 emergency procedures. Individual departments at the District segregated into distinct groups to lessen potential exposure risk. A portion of the staff worked remotely. Neither treatment nor frequency of testing were affected. • There were a few staffing issues at the Wastewater Treatment Plant due to Covid. The WWTP remained fully operational with an increase in overtime when necessary. • The Secondary Clarifier#3 rehabilitation construction project is nearly complete. During startup testing, on January 22, 2022, a failure in the 2-inch grout layer on the tank floor occurred. The District and contractor are evaluating repair options. The project duration will be extended. Wastewater Conveyance System • Sewer Pump Stations o Septic Tanks were cleaned at every one of the fourteen Fallen Leaf Sewer Pump Stations. o New Sump Pump for Dry-well was installed at Main Fallen Leaf Sewer Pump Station. o A new Electrical Panel was installed at Fallen Leaf Sewer Pump Station #13. o Pump Element for Pump #2 at Upper Truckee Sewer Pump Station was removed and replaced. o Driveshafts from motor to pump were removed and U-Joints were replaced on Pump #1 and Pump #2 at Upper Truckee Sewer Pump Station. o Check Valve for pump at Fallen Leaf Sewer Pump Station #7 was replaced. o Twelve-inch Force Main from Johnson Sewer Pump Station to the WWTP was flushed. o Sixteen-inch Force Main from Bijou Sewer Pump Station to the WWTP was flushed. o New Grinder Pumps were installed at Stateline Sewer Pump Station in the #1 and #2 positions. o Motor at Pump #1 at Luther Pass Pump Station was reinstalled after being removed due to the Caldor Fire. o Motor at Pump #4 at Luther Pass Pump Station was reinstalled after being removed due to the Caldor Fire. o New pump at Pump #1 Luther Pass Pump Station was installed. o Pump #4 at Luther Pass Pump Station was repacked and realigned. o Pump #2 at Luther Pass Pump Station was reinstalled. o Pumps were pulled and Wet-well was cleaned at City Storm Water Pump Station. • Collection System o Robotic Sewer Solutions made 35 repairs throughout the collection system. In Place Liner was applied to repair cracks and holes. Alpine County Disposal Facilities • Aeration at HPR stopped after air lines were burned during the Tamarack Fire. Aeration restarted in November 2021 after repairs. Two new compressors are scheduled to be replaced later this year. Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 2/3/2022 WASTEWATER TREATMENT PLANT MONTHLY REPORT 17:03 October 2021 <--------------------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 10/1/2021 Fri 2.53 3.3 2.96 274 6.2 224 2.4 10/2/2021 Sat 2.72 3.7 2.67 10/3/2021 Sun 2.69 3.7 2.71 10/4/2021 Mon 2.55 3.2 2.87 260 6.8 156 3.4 10/5/2021 Tue 2.49 3.3 3.03 10/6/2021 Wed 2.45 3.2 2.52 0.01 Rain 10/7/2021 Thu 2.49 3.2 2.64 10/8/2021 Fri 2.62 3.4 2.85 0.14 Rain 276 5.8 272 4.2 10/9/2021 Sat 2.81 3.8 2.83 10/10/2021 Sun 2.77 3.9 2.98 10/11/2021 Mon 2.54 3.4 2.88 0.29 Snow 10/12/2021 Tue 2.53 3.4 2.52 288 6.7 254 3.5 10/13/2021 Wed 2.49 3.2 2.91 10/14/2021 Thu 2.52 3.3 0.19 10/15/2021 Fri 2.56 3.3 1.31 10/16/2021 Sat 2.70 3.3 4.12 10/17/2021 Sun 2.71 3.8 3.10 0.25 Snow 299 6.4 259 2.9 10/18/2021 Mon 2.50 3.5 4.19 0.27 Snow 10/19/2021 Tue 2.47 3.2 3.50 10/20/2021 Wed 2.40 3.1 2.79 0.04 Rain 246 5.2 202 3.2 10/21/2021 Thu 2.44 3.1 3.05 0.33 Rain 10/22/2021 Fri 2.58 3.5 3.03 0.28 Rain 281 5.4 184 2.5 10/23/2021 Sat 2.68 3.5 2.76 0.17 Rain 10/24/2021 Sun 4.39 5.6 5.53 4.89 Rain 10/25/2021 Mon 3.44 4.5 4.67 1.36 Snow 160 5.0 138 2.4 10/26/2021 Tue 2.93 3.6 4.19 10/27/2021 Wed 2.90 3.7 4.46 10/28/2021 Thu 2.85 3.7 2.71 10/29/2021 Fri 2.78 3.4 3.29 230 4.2 176 2.3 10/30/2021 Sat 2.85 3.9 3.03 10/31/2021 Sun 2.74 3.8 2.97 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 84.12 110.5 95.26 0.00 0.00 8.03 2314 51.6 1865 26.6 Maximum 4.39 5.6 5.53 0.00 0.00 4.89 299 6.8 272 4.2 Minimum 2.40 3.1 0.19 0.00 0.00 0.01 160 4.2 138 2.3 Average 2.71 3.6 3.07 0.73 257 5.7 207 3.0 #Tests 31 31 31 0 0 11 9 9 9 9 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 2/3/2022 WASTEWATER TREATMENT PLANT MONTHLY REPORT 17:03 October 2021 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 10/1/2021 Fri 7.61 7.84 8.3 < 1 < 1 10/2/2021 Sat 7.61 7.73 7.2 < 1 < 1 10/3/2021 Sun 7.58 7.77 8.3 < 1 < 1 10/4/2021 Mon 7.46 7.76 7.6 < 1 < 1 284 276 10/5/2021 Tue 7.40 7.74 7.2 < 1 < 1 52.7 39.0 10/6/2021 Wed 7.46 7.75 5.8 1 < 1 10/7/2021 Thu 7.69 7.72 6.8 < 1 < 1 10/8/2021 Fri 7.45 7.67 7.8 < 1 < 1 10/9/2021 Sat 7.48 7.68 7.7 < 1 < 1 10/10/2021 Sun 7.70 7.74 8.6 < 1 < 1 10/11/2021 Mon 7.54 7.72 6.5 < 1 < 1 10/12/2021 Tue 7.64 7.89 7.5 < 1 < 1 10/13/2021 Wed 7.49 7.72 6.7 < 1 < 1 10/14/2021 Thu 7.48 7.9 < 1 < 1 10/15/2021 Fri 7.53 8.6 10/16/2021 Sat 7.48 7.66 6.6 < 1 < 1 10/17/2021 Sun 7.40 7.92 8.6 < 1 < 1 10/18/2021 Mon 7.55 7.73 7.0 2 < 1 10/19/2021 Tue 7.46 7.74 7.4 < 1 < 1 54.9 34.0 10/20/2021 Wed 7.60 7.84 6.6 < 1 < 1 272 284 10/21/2021 Thu 7.43 7.69 7.8 < 1 < 1 10/22/2021 Fri 7.56 7.73 7.5 < 1 < 1 10/23/2021 Sat 7.46 7.68 7.6 2 < 1 10/24/2021 Sun 7.52 7.66 6.9 < 1 < 1 10/25/2021 Mon 7.52 7.63 7.1 1 < 1 10/26/2021 Tue 7.34 7.42 8.1 < 1 < 1 10/27/2021 Wed 7.38 7.45 6.6 < 1 < 1 42.8 18.3 10/28/2021 Thu 7.64 7.56 6.4 < 1 < 1 10/29/2021 Fri 7.47 7.56 6.8 < 1 < 1 10/30/2021 Sat 7.45 7.66 5.6 < 1 < 1 10/31/2021 Sun 7.63 7.66 7.0 < 1 < 1 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 233.01 223.32 226.1 32 30 150.4 91.3 556 560 Maximum 7.70 7.92 8.6 2 1 54.9 39.0 284 284 Minimum 7.34 7.42 5.6 1 1 42.8 18.3 272 276 Average 7.52 7.70 7.29 1.1 1.0 50.1 30.4 278 280 #Tests 31 29 31 30 30 3 3 2 2 Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 2/3/2022 WASTEWATER TREATMENT PLANT MONTHLY REPORT 17:05 November 2021 <--------------------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 11/1/2021 Mon 2.59 3.4 2.92 227 4.5 156 1.1 11/2/2021 Tue 2.58 3.5 2.84 11/3/2021 Wed 2.67 3.6 2.95 11/4/2021 Thu 2.57 3.2 2.76 0.01 Rain 11/5/2021 Fri 2.60 3.3 2.84 255 4.4 191 1.3 11/6/2021 Sat 2.77 3.6 2.98 0.03 Rain 11/7/2021 Sun 2.71 3.7 3.01 11/8/2021 Mon 2.64 3.3 2.98 0.02 Rain 11/9/2021 Tue 2.80 4.1 3.52 0.70 Rain 11/10/2021 Wed 2.62 3.3 2.91 227 3.8 168 1.0 11/11/2021 Thu 2.70 3.4 3.04 11/12/2021 Fri 2.77 3.6 2.91 11/13/2021 Sat 2.88 3.9 3.22 302 6.0 229 2.3 11/14/2021 Sun 2.77 4.0 2.91 11/15/2021 Mon 2.51 3.3 3.06 11/16/2021 Tue 2.50 3.6 2.22 243 6.6 194 2.9 11/17/2021 Wed 2.45 3.1 2.86 11/18/2021 Thu 2.46 3.1 2.70 11/19/2021 Fri 2.46 3.4 2.89 11/20/2021 Sat 2.78 3.8 2.95 287 4.5 248 2.2 11/21/2021 Sun 2.83 3.9 3.14 11/22/2021 Mon 2.71 3.7 2.92 11/23/2021 Tue 2.79 3.8 2.99 11/24/2021 Wed 2.85 3.8 3.64 270 6.0 216 3.1 11/25/2021 Thu 3.01 4.4 2.98 11/26/2021 Fri 3.05 4.1 3.36 11/27/2021 Sat 3.06 4.4 3.13 355 6.2 240 3.9 11/28/2021 Sun 2.73 3.9 3.03 11/29/2021 Mon 2.47 3.2 2.68 11/30/2021 Tue 2.40 3.2 2.82 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 80.73 108.6 89.16 0.00 0.00 0.76 2166 42.0 1642 17.8 Maximum 3.06 4.4 3.64 0.00 0.00 0.70 355 6.6 248 3.9 Minimum 2.40 3.1 2.22 0.00 0.00 0.01 227 3.8 156 1.0 Average 2.69 3.6 2.97 0.19 271 5.2 205 2.2 #Tests 30 30 30 0 0 4 8 8 8 8 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 2/3/2022 WASTEWATER TREATMENT PLANT MONTHLY REPORT 17:05 November 2021 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 11/1/2021 Mon 7.53 7.80 6.6 < 1 < 1 11/2/2021 Tue 7.51 7.67 6.0 < 1 < 1 11/3/2021 Wed 7.70 7.73 7.4 < 1 < 1 11/4/2021 Thu 7.56 7.63 6.4 1 < 1 11/5/2021 Fri 7.48 7.64 8.2 < 1 < 1 11/6/2021 Sat 7.48 7.62 6.8 < 1 < 1 11/7/2021 Sun 7.41 7.70 7.1 < 1 < 1 11/8/2021 Mon 7.52 7.68 6.4 < 1 < 1 11/9/2021 Tue 7.38 7.58 5.2 < 1 < 1 45.9 24.0 11/10/2021 Wed 7.65 7.78 6.6 < 1 < 1 276 240 11/11/2021 Thu 7.59 7.57 6.3 < 1 < 1 11/12/2021 Fri 7.73 7.69 7.1 1 < 1 11/13/2021 Sat 7.67 7.80 6.1 < 1 < 1 11/14/2021 Sun 7.48 7.65 9.3 < 1 < 1 11/15/2021 Mon 7.52 7.64 7.4 < 1 < 1 11/16/2021 Tue 7.52 7.78 7.9 < 1 < 1 11/17/2021 Wed 7.50 7.64 6.5 < 1 < 1 11/18/2021 Thu 7.51 7.62 8.6 < 1 < 1 11/19/2021 Fri 7.56 7.65 6.7 < 1 < 1 11/20/2021 Sat 7.57 7.68 6.9 < 1 < 1 272 269 11/21/2021 Sun 7.48 7.70 7.2 < 1 < 1 11/22/2021 Mon 7.54 7.75 7.1 < 1 < 1 11/23/2021 Tue 7.49 7.73 7.1 < 1 < 1 46.8 35.2 11/24/2021 Wed 7.41 7.74 7.3 < 1 < 1 278 274 11/25/2021 Thu 7.34 7.71 7.5 < 1 < 1 11/26/2021 Fri 7.48 7.76 7.4 < 1 < 1 11/27/2021 Sat 7.43 7.75 8.2 < 1 < 1 11/28/2021 Sun 7.60 7.82 7.6 < 1 < 1 11/29/2021 Mon 7.51 7.79 2.5 1 < 1 11/30/2021 Tue 7.44 7.74 7.4 < 1 < 1 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 225.59 231.04 208.8 30 30 92.7 59.2 826 783 Maximum 7.73 7.82 9.3 1 1 46.8 35.2 278 274 Minimum 7.34 7.57 2.5 1 1 45.9 24.0 272 240 Average 7.52 7.70 6.96 1.0 1.0 46.4 29.6 275 261 #Tests 30 30 30 30 30 2 2 3 3 Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 2/3/2022 WASTEWATER TREATMENT PLANT MONTHLY REPORT 17:05 December 2021 <--------------------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 12/1/2021 Wed 2.39 3.1 2.70 340 6.3 223 3.2 12/2/2021 Thu 2.40 3.0 2.78 12/3/2021 Fri 2.50 3.2 2.86 12/4/2021 Sat 2.68 3.7 2.69 306 4.3 250 2.5 12/5/2021 Sun 2.65 3.7 2.72 12/6/2021 Mon 2.50 3.2 3.17 0.20 Rain 12/7/2021 Tue 2.47 3.3 2.82 0.02 Rain 12/8/2021 Wed 2.41 3.0 3.29 0.01 Rain 257 4.1 190 2.1 12/9/2021 Thu 2.44 3.6 2.92 0.47 Snow 12/10/2021 Fri 2.56 3.3 2.75 12/11/2021 Sat 2.74 3.8 2.72 301 4.7 217 2.8 12/12/2021 Sun 2.68 3.7 3.13 0.22 Snow 12/13/2021 Mon 2.68 3.5 1.29 0.91 Snow 12/14/2021 Tue 2.28 3.0 2.51 0.80 Snow 12/15/2021 Wed 2.60 3.2 4.71 0.36 Snow 209 7.2 140 4.8 12/16/2021 Thu 2.69 3.3 3.27 0.01 Snow 12/17/2021 Fri 2.86 3.5 3.15 12/18/2021 Sat 3.15 4.0 3.24 295 9.1 210 4.1 12/19/2021 Sun 3.19 4.2 3.50 12/20/2021 Mon 3.16 4.0 3.27 12/21/2021 Tue 3.14 4.0 3.71 278 9.2 204 4.6 12/22/2021 Wed 3.72 4.0 3.97 0.66 Rain 12/23/2021 Thu 4.30 5.4 0.39 3.95 1.61 Snow 12/24/2021 Fri 3.89 5.0 0.13 3.77 0.31 Snow 12/25/2021 Sat 3.63 4.5 0.00 3.63 0.45 Snow 12/26/2021 Sun 3.56 4.5 -0.01 3.57 0.09 Snow 12/27/2021 Mon 3.49 4.5 2.96 0.82 0.53 Snow 262 18.8 217 9.3 12/28/2021 Tue 3.41 4.3 3.51 0.25 12/29/2021 Wed 3.52 4.5 6.65 2.46 0.16 Snow 277 14.5 209 8.3 12/30/2021 Thu 3.62 4.6 6.80 2.50 12/31/2021 Fri 3.84 5.0 7.08 2.58 0.01 Snow Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 93.15 119.6 94.68 7.54 15.99 6.82 2525 78.2 1860 41.7 Maximum 4.30 5.4 7.08 2.58 3.95 1.61 340 18.8 250 9.3 Minimum 2.28 3.0 -0.01 2.46 0.25 0.01 209 4.1 140 2.1 Average 3.00 3.9 3.05 2.51 2.67 0.40 281 8.7 207 4.6 #Tests 31 31 31 3 6 17 9 9 9 9 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 2/3/2022 WASTEWATER TREATMENT PLANT MONTHLY REPORT 17:05 December 2021 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 12/1/2021 Wed 7.49 7.78 8.1 < 1 < 1 12/2/2021 Thu 7.50 7.71 5.6 < 1 < 1 12/3/2021 Fri 7.50 7.71 7.2 < 1 < 1 12/4/2021 Sat 7.54 7.66 7.2 < 1 < 1 12/5/2021 Sun 7.45 7.75 8.5 < 1 < 1 51.4 36.6 12/6/2021 Mon 7.59 7.78 7.3 < 1 < 1 12/7/2021 Tue 7.54 7.73 7.3 < 1 < 1 12/8/2021 Wed 7.54 7.78 6.8 < 1 < 1 270 262 12/9/2021 Thu 7.65 7.73 6.9 < 1 < 1 12/10/2021 Fri 7.54 7.72 7.2 < 1 < 1 12/11/2021 Sat 7.42 7.72 7.0 < 1 < 1 12/12/2021 Sun 7.75 7.79 7.0 < 1 < 1 12/13/2021 Mon 7.61 7.84 6.9 < 1 < 1 12/14/2021 Tue 7.53 7.73 12/15/2021 Wed 7.59 7.67 6.4 < 1 < 1 12/16/2021 Thu 7.57 7.70 7.2 < 1 < 1 12/17/2021 Fri 7.54 7.70 7.0 < 1 < 1 12/18/2021 Sat 7.56 7.81 6.7 < 1 < 1 12/19/2021 Sun 7.68 7.73 7.9 < 1 < 1 12/20/2021 Mon 7.44 7.75 7.2 < 1 < 1 55.2 40.5 12/21/2021 Tue 7.43 7.76 6.8 < 1 < 1 284 279 12/22/2021 Wed 7.43 7.70 7.9 < 1 < 1 12/23/2021 Thu 7.53 6.9 < 1 < 1 12/24/2021 Fri 7.56 15.0 < 1 < 1 12/25/2021 Sat 7.70 12/26/2021 Sun 7.70 12/27/2021 Mon 7.61 7.74 16.0 < 1 < 1 12/28/2021 Tue 7.55 7.71 8.6 1 < 1 12/29/2021 Wed 7.58 7.65 8.4 < 1 < 1 12/30/2021 Thu 7.59 9.1 < 1 < 1 12/31/2021 Fri 7.51 7.61 8.8 1 < 1 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 234.22 200.96 222.9 28 28 106.6 77.1 554 541 Maximum 7.75 7.84 16.0 1 1 55.2 40.5 284 279 Minimum 7.42 7.61 5.6 1 1 51.4 36.6 270 262 Average 7.56 7.73 7.96 1.0 1.0 53.3 38.6 277 271 #Tests 31 26 28 28 28 2 2 2 2 Page 3 SOUTH TAHOE PUBLIC UTILITY DISTRICT WASTEWATER TREATMENT PLANT NUMBER OF VIOLATIONS 2021 Parameter #Tests Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Total Compliance Total Plant Inflow;7.7 MGD; Dry Weather 365 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% 2-Hour Peak Inflow; 18.5 MGD 365 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% BOD, 30 Day Ave: 30 mg/L 12 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% BOD, Max:45 mg/L 97 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% SS,30 Day Ave:30 mg/L 12 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% SS, Max:60 mg/L 102 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% pH,6.5 to 8.5 347 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% Total Coliforms, Max:240 MPN/100 mL 352 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% Total Coliforms,7-day Median:23 MPN 359 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% Total 2,011 0 0 0 0 0 0 0 0 0 0 0 0 0 100.0% South Tahoe Public Utility District ERB Inspection Date of Inspection: /c, 2 c, 2.1 Performed by: C01-i I4 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: G�ctaO Vegetation control: Fq� . Overflow Spillway: G-e+cv:) Stairs North: P-0 Stairs South: N A Top Fill Structure North: �fzaJ Top Fill Structure South: Drain Valve North: sr�c%� Drain Valve South: Perimeter Fence & Gates: Valve House: /�, Comments: E rns- 1 k3 c Date of Inspection: jo - 2 o• 2j Performed by: — + + + + + + + + + + + - "Valve House �utlsl Valve till, � '1 Forth Pond - ! t t t ..t - E Outlet Vaive f �- + ` I t + � +l� South Pond �i All f St rs + + + + + + + South Tahoe Public Utility District ERB Inspection Date of Inspection: {1 • 3sc • 2 j Performed by: e4n-s-+y 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: e�RPb1b Vegetation control: (,00b Overflow Spillway: Stairs North: OY fq Stairs South: /Y 00 Top Fill Structure North: �- Top Fill Structure South: Drain Valve North: Drain Valve South: Perimeter Fence & Gates: 61i ] Valve House: dGisob Comments: Date of Inspection: _ I l •3 n '21 Performed by: K + + + + Valve House .. _ AL A- *OC Outlet Valve IL + + + - E North Pond f; Stairs '- .. + •, I tl + + + + + + + + + 411 r t �Oullel Valve i I -+ South Pond Stairs i t t t + + + + t + t + + South Tahoe Public Utility District ERB Inspection Date of Inspection: d 2 Z 1 Performed by: rD 1.-1 /y _ 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: _ -5:�4 D Vegetation control: $-i.[:1)'?L� ti Overflow Spillway: Stairs North: o ^ Stairs South: Top Fill Structure North: Top Fill Structure South: QV DiJ Drain Valve North: _ s,��r;,o Drain Valve South: Perimeter Fence & Gates: Valve House: koov as Comments: Date of Inspection: /2 ' 2 o z 1 Performed by: Li ..alve House t ► ! outlet valve North Pond stairs . r ItiI!■_ Outlet Valve r r ji south Pond Stairs �- Sample Sites Site Latitude 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-04W 38.836719 -119.779439 Gansberg Ranch 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-08N 38.773618 -119.776847 Diamond Valley Ranch Monitoring Well ACMW-09D 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-05 38.830897 -119.773807 Neddenriep 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-17 DV Ranch Domestic well Domestic Well D:\Lahontan\Sample Sites\Lahontan Report-Sample Sites 2019 Page 1 of 2 Sample Sites Site Latitude Longitude Location Type Sample 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 Alpine County Soils Sites S-2 38.800316 -119.764305 Cello 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 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-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 MW04-50 38.9148881 -119.9666463 W side of Emergency Retention Basin,off Hank Monk Ave Monitoring Well MW07-50 38.9157020 -119.9639551 NE corner of Emergency Retention Basin Monitoring Well MW08-25 38.9213967 -119.9709800 SW corner of Pond#1,at south access gate to STPUD Monitoring Well MW11 38.9238680 -119.9677190 250 ft south east of North Gate(to Al Tahoe Blvd) Monitoring Well MW12 38.9226200 -119.9683700 110 ft south of Biosolids Building Monitoring Well MW13 38.9206200 -119.9692200 125 ft south east of Pond#2 Monitoring Well Ditch Sites DD-01 38.765624 -119.780543 Diamond Ditch @ beginning;HPR effluent Ditch SW-12 38.809127 -119.777411 Bruns Diversion Ditch SW-13 38.810082 -119.776900 Fredericksburg Ditch Ditch SW-15 38.828440 -119.756263 Cello 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 2019 Page 2 of 2 36 I sw-o _ 7 SW �14 � z Ln g �j , -- - ir JEEP 3 }---- °o __//hI -- --- -- ------ - CMW-04W i sM _ i I 5039" � N Oo ICI `. V o$ CM W 2 CMW-25 CMW-22 _ - - - - Cal j :CMW 2Pil IM /r f � -�� .. �. 6 o ° (D . CMW-21 �,. 0 0 1 j _ P 0 R! 9 i w22 8M 5069 6 � I -00/ I � I s g I 3 I 6 ` l !!! Payneavt�le VV . L 56as - li � ati / 1� "� ,I 21; -�� - A >24 19 ACMW-os 6°so x Q ti F ACMW-OB 15D—ge -,� v - t t �E,P osal Ponds -- i �s N L ' t I � 0 II I BM 5264 fI yI 0a I Ia I OS Diamond Ditch.S, e W 10 SW-06S1k-08 sso� eos 26 SW ro I .f. e _ —'x--(— 09S CMW-18 - is SW-04 CMW-12 �'s .r 4 A SW AS ACM *CCMM WOSW-O3 CM vncter- - MW-00 W-02SAW-0 � MW-07D yN °II ACM O, - h Dit b�,� ACM D-4 D 'L�_ 1 - ACM 4 gW_ o�_ 7 MW-01AW ®c*y G = 's o -- —` W 1 HPR � ssoo U T A N POP. ire Cox '"°` N -o2D-2 EXPLANATION �I w � �� g Y T7�0N SW 5866 E A i .;EE,' --f „- Surface Water f/1 r o _- -- _. -g_ st e,�.y CR o i D 9 we _ -- Ditch 1 C B 1, 6 Q 2° i SP, �g CL L -.�� ' � I � icR-3 �J tj Reservoir �� tj MONITOR WELL Crteek L �_- __--Ca Pg � A....._ Irrigation - Recyled-23 Water — o n Irrigation - Blended Recycled Water r " SOUTH TAHOE PUBLIC UTILITY DISTRICT 0 1,500 3,000 6,000 Feet RECYCLED WATER PROGRAM w E MONITORING LOCATIONS �OVTN H�F ALPINE COUNTY, CA S Path:X:\GIS\IB_Alpine County\Alpine Co Monitoring_11 x17_15 Aug 2014.mxd 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 01/01/16 743 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 07/01/17 2,210 1,590 08/01/17 1,626 2,174 09/01/17 878 2,922 10/01/17 114 3,686 11/01/17 220 3,580 12/01/17 544 3,256 01/01/18 878 2,922 02/01/18 1,177 2,623 03/01/18 1,410 2,390 04/01/18 1,938 1,862 05/01/18 2,246 1,554 06/01/18 2,465 1,335 07/01/18 1,927 1,873 08/01/18 1,240 2,560 09/01/18 531 3,269 10/01/18 88 3,712 11/01/18 206 3,594 12/01/18 453 3,347 01/01/19 781 3,019 02/01/19 1,131 2,669 03/01/19 1,714 2,086 04/01/19 2,210 1,590 05/01/19 2,517 1,283 06/01/19 1,991 1,809 07/01/19 1,326 2,474 08/01/19 693 3,107 09/01/19 185 3,615 10/01/19 72 3,728 11/01/19 217 3,583 12/01/19 472 3,328 01/01/20 798 3,002 02/01/20 1,063 2,737 03/01/20 1,326 2,474 04/01/20 1,573 2,227 05/01/20 1,783 2,017 06/01/20 1,896 1,904 07/01/20 1,395 2,405 08/01/20 750 3,050 09/01/20 137 3,663 10/01/20 72 3,728 11/01/20 222 3,578 12/01/20 472 3,328 01/01/21 764 3,036 02/01/21 1,050 2,750 03/01/21 1,296 2,504 04/01/21 1,564 2,236 05/01/21 1,763 2,037 06/01/21 1,908 1,892 07/01/21 1,475 2,325 08/01/21 861 2,939 09/01/21 946 2,854 10/01/21 86 3,714 11/01/21 274 3,526 12/01/21 490 3,310 01/01/22 821 2,979 Z:N-PR C.,-Sro g-hontan Repoli Harvey Place Reservoir Recycled Water Storage 4,000 3,500 3,000 as as 2,500 L V Q 2,000 1,500 1,000 500 . . . . . .. iV COCO(O(O(O(O(O(O(O(O(O(D CO O2?2 �N 0o 0 CD CD CD CD O O O O O CD CD CD MV�O I�W�O�N� MV�O I�o�O� NMV�0I�oN�NMV�c, � N N NN N�N�NM�NV(c�NO��NI �NW��N O�N NrC-O cOI-o6O 000000000��000000000��000000000��000000000��000000000��000000000��0 Storage Alpine County Summary Report Temp pH EC DO Alk TDS SS Turb Chloride Sulfate ACMW-01AW 10/28/2021 Main Dam 14.2 6.62 115 38.8 86 5.23 1.67 ACMW-01BE 10/28/2021 Secondary Dam 9.9 6.68 102 48.0 83 1.66 0.882 ACMW-02N 10/28/2021 Access Gate 14.1 6.58 128 59.7 93 1.78 2.91 ACMW-02S 10/28/2021 Access Gate 16.2 6.21 108 51.7 81 1.51 1.41 ACMW-04W 10/28/2021 Gansberg 12.2 6.41 187 39.2 131 20.1 10.0 ACMW-06S 10/28/2021 Cello 12.4 7.23 615 216 389 58.1 19.6 ACMW-08N 11/15/2021 Diamond Valley Ranch 11.8 6.85 161 78.9 116 1.76 1.00 ACMW-09D 11/18/2021 Diamond Valley Ranch 12.8 6.50 78.2 31.9 97 1.61 2.66 ACMW-10 11/18/2021 Diamond Valley Ranch 12.1 6.54 183 69.1 143 5.66 6.59 ACMW-11 11/18/2021 Diamond Valley Ranch 11.9 6.30 89.6 34.6 72 2.40 3.65 ACMW-12 11/15/2021 Diamond Valley Ranch 11.8 6.66 109 46.6 88 2.32 2.31 ACMW-13 11/15/2021 Diamond Valley Ranch 12.8 6.16 124 51.1 86 2.07 2.30 ACMW-14 11/18/2021 Diamond Valley Ranch 12.2 6.19 76.4 34.1 83 1.47 2.43 ACMW-15 12/02/2021 Diamond Valley Ranch 14.8 5.92 77.2 32.5 58 1.81 1.81 ACMW-16 12/02/2021 Diamond Valley Ranch 13.6 6.22 130 57.6 92 1.75 1.94 ACMW-17 12/02/2021 Diamond Valley Ranch 12.5 6.31 88.5 33.5 64 2.98 3.51 ACMW-18 12/02/2021 Diamond Valley Ranch 14.0 6.37 78.0 32.5 54 1.86 1.99 ACMW-19 12/02/2021 Diamond Valley Ranch 13.7 6.64 242 118 152 3.84 0.562 ACMW-20 11/15/2021 Diamond Valley Rd- 14.5 6.31 81.2 33.0 64 2.17 2.32 Paynesville ACMW-21 11/10/2021 River Ranch Rd 11.3 6.05 175 37.4 115 17.9 3.95 ACMW-22 11/10/2021 Fredericksburg Ln 11.7 6.06 104 42.6 79 1.38 2.92 ACMW-23 11/10/2021 Scott Brooke's Ranch by 14.6 7.18 385 172 273 4.05 18.9 Irrigation Ditch ACMW-24 11/10/2021 Scott Brooke's Ranch by 13.3 6.35 612 189 378 49.1 30.3 Irrigation Ditch ACMW-25 11/10/2021 Access road between 15.1 6.22 148 45.2 115 8.14 4.84 Neddenriep&Brooke ranches ACMW-26 11/10/2021 Access road between 14.4 6.35 235 62.3 148 23.1 7.22 Neddenriep&Brooke ranches CONTROL 12/07/2021 East side near Post Office 8.8 6.91 274 26.1 ERB 12/30/2021 ERB 3.5 7.50 591 61.8 GW-05 11/18/2021 Neddenriep 11.8 6.55 270 61.3 193 31.3 9.92 GW-08 11/18/2021 Arent Ranch house 13.4 6.05 360 46.4 237 42.2 14.0 GW-11 11/15/2021 Diamond Valley School 15.1 6.85 139 69.9 107 1.04 0.807 GW-17 11/15/2021 Diamond Valley Ranch House 12.0 6.61 136 60.9 102 1.82 1.03 Well HPR 10/12/2021 Harvey Place Reservoir 9.9 8.04 625 7.62 172 288 24.3 12 64.1 20.1 11/03/2021 Harvey Place Reservoir 10.6 7.85 557 9.44 126 264 6.40 3.6 52.6 29.0 12/15/2021 Harvey Place Reservoir 3.1 8.33 568 9.80 140 264 8.98 4.8 54.4 24.3 HVC-1 10/28/2021 HVC @ Pioneer Trail 4.8 7.63 90.0 2.25 11/24/2021 HVC @ Pioneer Trail 2.0 7.31 79.8 1.54 HVC-3 10/28/2021 HVC 25'Downstream of 5.9 6.24 80.0 7.75 Meadow Crest HVC-5 10/24/2021 Effluent of STPUD Drainage 5.7 7.14 48.2 54.8 38 2.79 Pipe along Meadow Crest MW015 12/06/2021 SW comer of ERB 8.3 7.22 173 1.85 Results resported as mg/L except EC as uS/cm Turbidity as NTU Cordoms as MPN/100mL Temp as C NC=Not counted Page 1 of 8 Alpine County Summary Report Temp pH EC DO All, TDS SS Turb Chloride Sulfate MW02-50 12/06/2021 South side of ERB Pond 9.2 6.58 258 28.1 MW03-50 12/07/2021 Southwest comer of ERB Pond 9.7 6.23 419 47.2 MW04-50 12/06/2021 Hank Monk side of ERB 8.0 6.20 90.9 4.92 MW07-50 12/06/2021 North side of ERB Pond 7.2 7.63 178 10.3 MWOB-25 12/06/2021 South of Pond 1 10.0 6.44 439 30.6 MW12 12/06/2021 South of Biosolids Building 9.3 6.41 261 8.26 MW13 12/06/2021 South of Pond 2 along HVC 7.5 6.74 561 27.6 SW-01 10/06/2021 Carson River Woodfords 11.2 7.74 85.6 8.93 41.8 65 1.02 0.44 1.42 1.94 11/04/2021 Carson River Woodfords 6.9 7.59 65.1 10.20 26.8 46 1.24 0.94 1.72 2.44 12/15/2021 Carson River Woodfords 0.50 8.12 82.0 11.60 36.8 60 0.84 0.57 2.60 2.44 SW-02 11/04/2021 Indian Creek Upper 10.5 7.66 152 8.91 54.9 100 5.81 0.95 2.40 12.6 SW-03 10/06/2021 Indian Creek Mid 11.6 7.27 194 7.89 110 151 2.49 2.7 4.45 1.86 11/04/2021 Indian Creek Mid 8.4 7.73 67.2 9.64 27.4 51 27.9 9.8 1.69 2.45 SW-04 10/06/2021 Indian Creek Lower 10.5 7.46 173 8.52 81.8 114 6.70 3.9 3.10 2.61 11/04/2021 Indian Creek Lower 10.5 7.87 72.6 8.88 31.2 55 32.8 15 1.78 2.45 SW-05 10/06/2021 Carson River Paynesville 11.8 8.30 96.9 9.39 45.6 72 1.66 1.0 1.80 2.51 11/04/2021 Carson River Paynesville 8.8 7.89 72.5 9.94 29.8 54 1.67 0.99 1.90 2.79 12/15/2021 Carson River Paynesville 0.79 7.94 111 11.10 44.1 83 0.47 0.82 4.19 5.14 SW-06 10/06/2021 Carson River Stateline 12.8 8.08 99.6 9.77 46.4 72 1.32 0.97 2.07 2.71 11/04/2021 Carson River Stateline 9.0 7.96 75.5 9.83 30.6 58 2.40 1.2 2.07 2.92 12/15/2021 Carson River Stateline 0.78 8.09 120 11.60 47.0 90 2.70 1.1 4.98 5.90 SW-08 10/06/2021 Irrigation Ditch 13.7 7.44 133 6.66 61.9 104 1.80 0.57 1.88 3.98 11/04/2021 Irrigation Ditch 9.3 7.59 137 8.02 59.5 120 1.64 0.66 2.63 11.0 Results resported as mg/L except EC as uS/cm Turbidity as NTU Cordoms as MPN/100ml- Temp as C NC=Not munted 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 10/28/2021 Main Dam 0.029 0.022 <0.020 2.66 <0.010 2.43 0.230 ACMW-01BE 10/28/2021 Secondary Dam 0.032 0.029 <0.020 0.205 <0.010 0.241 <0.050 ACMW-02N 10/28/2021 Access Gate 0.024 0.020 <0.020 0.214 <0.010 0.223 <0.050 ACMW-02S 10/28/2021 Access Gate 0.026 0.016 <0.020 0.072 <0.010 <0.010 0.072 ACMW-04W 10/28/2021 Gansberg 0.020 <0.020 <0.020 1.94 <0.020 1.81 0.13 ACMW-06S 10/28/2021 Cello 0.074 0.057 <0.020 0.105 <0.020 0.025 0.080 ACMW-08N 11/15/2021 Diamond Valley Ranch 0.041 0.041 <0.020 0.605 <0.010 0.623 <0.050 ACMW-09D 11/18/2021 Diamond Valley Ranch 0.066 0.051 <0.020 0.832 <0.030 0.889 <0.050 ACMW-10 11/18/2021 Diamond Valley Ranch 0.048 0.038 <0.020 1.76 <0.030 1.96 <0.050 ACMW-11 11/18/2021 Diamond Valley Ranch 0.027 <0.030 <0.020 0.670 <0.030 0.685 <0.050 ACMW-12 11/15/2021 Diamond Valley Ranch 0.034 0.034 <0.020 0.636 <0.010 0.656 <0.050 ACMW-13 11/15/2021 Diamond Valley Ranch 0.024 0.026 <0.020 0.951 <0.010 0.951 <0.050 ACMW-14 11/18/2021 Diamond Valley Ranch 0.032 0.017 <0.020 0.601 <0.010 0.150 0.451 ACMW-15 12/02/2021 Diamond Valley Ranch 0.031 0.037 <0.020 0.413 <0.010 0.405 <0.050 ACMW-16 12/02/2021 Diamond Valley Ranch 0.027 0.050 <0.020 0.737 <0.010 0.728 <0.050 ACMW-17 12/02/2021 Diamond Valley Ranch <0.010 0.042 <0.020 0.680 0.012 0.673 <0.050 ACMW-18 12/02/2021 Diamond Valley Ranch 0.010 0.030 <0.020 0.331 <0.010 0.317 <0.050 ACMW-19 12/02/2021 Diamond Valley Ranch 0.072 0.082 0.039 0.182 <0.010 <0.010 0.182 ACMW-20 11/15/2021 Diamond Valley Rd- 0.071 0.069 <0.020 0.279 <0.010 0.252 <0.050 Paynesville ACMW-21 11/10/2021 River Ranch Rd 0.071 0.062 <0.020 3.13 <0.010 2.56 0.57 ACMW-22 11/10/2021 Fredericksburg Ln 0.020 <0.050 <0.020 0.817 <0.020 0.816 <0.050 ACMW-23 11/10/2021 Scott Brooke's Ranch by 0.076 <0.050 <0.020 1.06 <0.020 1.08 <0.050 Irrigation Ditch ACMW-24 11/10/2021 Scott Brooke's Ranch by 0.082 0.072 <0.020 1.88 <0.030 1.84 <0.050 Irrigation Ditch ACMW-25 11/10/2021 Access road between 0.052 <0.050 <0.020 1.64 <0.030 1.60 <0.050 Neddenriep&Brooke ranches ACMW-26 11/10/2021 Access road between 0.094 0.083 <0.020 1.31 0.038 1.19 0.082 Neddenriep&Brooke ranches CONTROL 12/07/2021 East side near Post Office <0.010 4.92 ERB 12/30/2021 ERB 0.307 0.260 GW-05 11/18/2021 Neddenriep 0.040 0.022 <0.020 5.66 <0.010 5.72 <0.050 GW-08 11/18/2021 Arant Ranch house 0.054 0.026 <0.020 8.82 <0.010 11.9 <0.050 GW-11 11/15/2021 Diamond Valley School 0.043 0.034 <0.020 0.462 <0.010 0.475 <0.050 GW-17 11/15/2021 Diamond Valley Ranch House 0.021 <0.020 <0.020 0.545 <0.020 0.628 <0.050 Well HPR 10/12/2021 Harvey Place Reservoir 3.62 3.11 22.6 31.5 1.51 1.20 28.8 11/03/2021 Harvey Place Reservoir 2.69 2.26 17.1 24.7 1.31 4.09 19.3 12/15/2021 Harvey Place Reservoir 2.98 2.57 18.9 25.5 0.814 3.09 21.6 HVC-1 10/28/2021 HVC @ Pioneer Trail <0.020 0.193 <0.010 <0.010 0.193 11/24/2021 HVC @ Pioneer Trail <0.020 0.122 <0.010 0.055 0.067 HVC-3 10/28/2021 HVC 25'Downstream of <0.020 0.525 <0.010 <0.010 0.525 Meadow Crest HVC-5 10/24/2021 Effluent of STPUD Drainage 0.564 0.093 0.835 <0.010 0.213 0.622 Pipe along Meadow Crest MW01 5 12/06/2021 SW comer of ERB <0.010 0.338 Results resported as mg/L except EC as uS/cm Turbidity as NTU Cordoms 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 MW02-50 12/06/2021 South side of ERB Pond <0.010 1.71 MW03-50 12/07/2021 Southwest corner of ERB Pond <0.010 9.93 MW04-50 12/06/2021 Hank Monk side of ERB <0.010 0.270 MW07-50 12/06/2021 North side of ERB Pond <0.010 0.464 MW08-25 12/06/2021 South of Pond 1 <0.010 <0.010 MW12 12/06/2021 South of Biosolids Building <0.020 0.436 MW13 12/06/2021 South of Pond 2 along HVC <0.010 1.84 SW-01 10/06/2021 Carson River Woodfords 0.018 0.015 <0.020 <0.050 <0.010 <0.010 <0.050 11/04/2021 Carson River Woodfords 0.020 <0.010 <0.020 0.160 <0.010 0.011 0.149 12/15/2021 Carson River Woodfords 0.021 <0.010 <0.020 0.090 <0.010 <0.010 0.090 SW-02 11/04/2021 Indian Creek Upper 0.057 0.035 <0.020 0.354 <0.010 0.070 0.284 SW-03 10/06/2021 Indian Creek Mid 0.076 0.029 <0.020 0.083 <0.010 0.017 0.066 11/04/2021 Indian Creek Mid 0.076 <0.010 <0.020 0.278 <0.010 <0.010 0.278 SW-04 10/06/2021 Indian Creek Lower 0.097 0.027 <0.020 0.283 <0.010 <0.010 0.283 11/04/2021 Indian Creek Lower 0.102 0.013 <0.020 0.307 <0.010 <0.010 0.307 SW-05 10/06/2021 Carson River Paynesville 0.033 0.011 <0.020 0.056 <0.010 <0.010 0.056 11/04/2021 Carson River Paynesville 0.020 <0.010 <0.020 0.158 <0.010 <0.010 0.158 12/15/2021 Carson River Paynesville 0.024 <0.010 <0.020 0.158 <0.010 0.019 0.139 SW-06 10/06/2021 Carson River Stateline 0.022 0.014 <0.020 0.093 <0.010 0.031 0.062 11/04/2021 Carson River Stateline 0.024 <0.010 <0.020 0.244 <0.010 0.014 0.230 12/15/2021 Carson River Stateline 0.026 <0.010 <0.020 0.270 <0.010 0.094 0.176 SW-08 10/06/2021 Irrigation Ditch 0.031 0.018 <0.020 0.203 <0.010 <0.010 0.203 11/04/2021 Irrigation Ditch 0.051 <0.010 <0.020 0.413 <0.010 <0.010 0.413 Results resported as mg/L except EC as uS/cm Turbidity as NTU Cordoms 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 10/12/2021 Harvey Place Reservoir 20.6 21.4 4.96 55.0 14.2 2.78 56.5 11/03/2021 Harvey Place Reservoir 7.99 20.3 4.69 48.9 12.6 2.54 55.3 12/15/2021 Harvey Place Reservoir 10.7 21.0 4.80 49.5 12.3 2.53 55.0 Results resported as mg/L except EC as uS/cm Turbidity as NTU Cordoms as MPN/100mL Temp as C NC=Not counted Page 5 of 8 Alpine County Summary Report Total E.Coli Coliform Chromo Chromo ACMW-01AW 10/28/2021 Main Dam 219 1.0 ACMW-01BE 10/28/2021 Secondary Dam 12.2 <1 ACMW-02N 10/28/2021 Access Gate <1 <1 ACMW-02S 10/28/2021 Access Gate 12.2 <1 ACMW-04W 10/28/2021 Gansberg 17.5 <1 ACMW-06S 10/28/2021 Celio >2420 <1 ACMW-08N 11/15/2021 Diamond Valley Ranch 649 <1 ACMW-09D 11/18/2021 Diamond Valley Ranch <1 <1 ACMW-10 11/18/2021 Diamond Valley Ranch <1 <1 ACMW-11 11/18/2021 Diamond Valley Ranch <1 <1 ACMW-12 11/15/2021 Diamond Valley Ranch <1 <1 ACMW-13 11/15/2021 Diamond Valley Ranch <1 <1 ACMW-14 11/18/2021 Diamond Valley Ranch 83.9 <1 ACMW-15 12/02/2021 Diamond Valley Ranch <1 <1 ACMW-16 12/02/2021 Diamond Valley Ranch <1 <1 ACMW-17 12/02/2021 Diamond Valley Ranch <1 <1 ACMW-18 12/02/2021 Diamond Valley Ranch 1.0 <1 ACMW-19 12/02/2021 Diamond Valley Ranch <1 <1 ACMW-20 11/15/2021 Diamond Valley Rd- 7.5 <1 Paynesville ACMW-21 11/10/2021 River Ranch Rd <1 <1 ACMW-22 11/10/2021 Fredericksburg Ln <1 <1 ACMW-23 11/10/2021 Scott Brooke's Ranch by <1 <1 Irrigation Ditch ACMW-24 11/10/2021 Scott Brooke's Ranch by <1 <1 Irrigation Ditch ACMW-25 11/10/2021 Access road between 2.0 <1 Neddenriep&Brooke ranches ACMW-26 11/10/2021 Access road between <1 <1 Neddenriep&Brooke ranches GW-05 11/18/2021 Neddenriep <1 <1 GW-08 11/18/2021 Arent Ranch house <1 <1 GW-11 11/15/2021 Diamond Valley School <1 <1 GW-17 11/15/2021 Diamond Valley Ranch House <1 <1 Well HPR 10/12/2021 Harvey Place Reservoir 4960 13.4 11/03/2021 Harvey Place Reservoir 2420 17.3 12/15/2021 Harvey Place Reservoir 2710 11.0 SW-01 10/06/2021 Carson River Woodfords 461 <1 11/04/2021 Carson River Woodfords 488 6.3 12/15/2021 Carson River Woodfords 88.8 3.1 Results resported as mg/L except EC as uS/cm Turbidity as NTU Col'doms as MPN/100mL Temp as C NC=Not counted Page 6 of 8 Alpine County Summary Report Total E.Coli Coliform Chromo Chromo SW-02 11/04/2021 Indian Creek Upper 770 62.4 SW-03 10/06/2021 Indian Creek Mid >2420 57.3 11/04/2021 Indian Creek Mid 1146 78.4 SW-04 10/06/2021 Indian Creek Lower 4650 649 11/04/2021 Indian Creek Lower 1600 56.1 SW-05 10/06/2021 Carson River Paynesville 1990 49.6 11/04/2021 Carson River Paynesville 517 12.1 12/15/2021 Carson River Paynesville 488 8.5 SW-06 10/06/2021 Carson River Stateline >2420 326 11/04/2021 Carson River Stateline 866 35.9 12/15/2021 Carson River Stateline 727 9.8 SW-08 10/06/2021 Irrigation Ditch 2420 158 11/04/2021 Irrigation Ditch 3060 34.5 Results msported as mg/L except EC as uS/cm Turbidity as NTU Cordoms 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 10/12/2021 Harvey Place Reservoir 1 NC NC NC NC NC 225 11/03/2021 Harvey Place Reservoir 0 NC NC NC NC NC 0 12/15/2021 Harvey Place Reservoir 0 NC NC NC NC NC 0 Results resported as mg/L except EC as u5/cm Turbidity as NTU Collfoms 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 10/28/2021 12:08 AG80444 8.87 5493.13 5,484.26 ACMW-01BE Secondary Dam 10/28/2021 11:35 AG80445 15.77 5503.55 5,487.78 ACMW-02N Access Gate 10/28/2021 12:51 AG80446 9.20 5469.70 5,460.50 ACMW-02S Access Gate 10/28/2021 12:32 AG80447 10.75 5471.60 5,460.85 ACMW-04W Gansberg 10/28/2021 10:12 AG80448 17.86 4919.89 4,902.03 ACMW-06S Celio 10/28/2021 10:49 AG80449 14.55 5223.50 5,208.95 ACMW-08N Diamond Valley Ranch 11/15/2021 10:41 AG80752 5.45 5464.45 5,459.00 ACMW-09D Diamond Valley Ranch 11/18/2021 10:14 AG80848 36.81 5510.56 5,473.75 ACMW-10 Diamond Valley Ranch 11/18/2021 09:46 AG80849 32.10 5534.19 5,502.09 ACMW-11 Diamond Valley Ranch 11/18/2021 10:41 AG80850 23.37 5503.01 5,479.64 ACMW-12 Diamond Valley Ranch 11/15/2021 11:21 AG80753 33.20 5525.04 5,491.84 ACMW-13 Diamond Valley Ranch 11/15/2021 12:14 AG80754 12.61 5554.55 5,541.94 ACMW-14 Diamond Valley Ranch 11/18/2021 11:18 AG80851 18.00 5547.20 5,529.20 ACMW-15 Diamond Valley Ranch 12/02/2021 09:44 AG81035 21.94 5500.60 5,478.66 ACMW-16 Diamond Valley Ranch 12/02/2021 10:08 AG81036 14.58 5484.53 5,469.95 ACMW-17 Diamond Valley Ranch 12/02/2021 11:33 AG81037 16.05 5504.92 5,488.87 ACMW-18 Diamond Valley Ranch 12/02/2021 11:04 AG81038 9.31 5470.56 5,461.25 ACMW-19 Diamond Valley Ranch 12/02/2021 10:33 AG81039 6.30 5417.25 5,410.95 ACMW-20 Diamond Valley Rd-Paynesville 11/15/2021 10:05 AG80755 14.67 5090.30 5,075.63 ACMW-21 River Ranch Rd 11/10/2021 11:55 AG80675 21.28 5011.33 4,990.05 ACMW-22 Fredericksburg Ln 11/10/2021 12:26 AG80676 34.43 5019.28 4,984.85 ACMW-23 Scott Brooke's Ranch by Irrigation 11/10/2021 11:12 AG80677 19.70 4978.35 4,958.65 Ditch ACMW-24 Scott Brooke's Ranch by Irrigation 11/10/2021 10:37 AG80678 25.61 4953.25 4,927.64 Ditch ACMW-25 Access road between Neddenriep& 11/10/2021 13:05 AG80679 10.37 4942.24 4,931.87 Brooke ranches ACMW-26 Access road between Neddenriep& 11/10/2021 13:39 AG80680 14.51 4895.60 4,881.09 Brooke ranches CONTROL East side near Post Office 12/07/2021 12:46 AG81117 66.69 6345.20 6,278.51 MW01 5 SW corner of ERB 12/06/2021 11:08 AG81077 59.91 6328.00 6,268.09 MW02-50 South side of ERB Pond 12/06/2021 12:26 AG81078 46.68 6314.60 6,267.92 MW03-50 Southwest corner of ERB Pond 12/07/2021 13:09 AG81118 42.11 6310.10 6,267.99 MW04-50 Hank Monk side of ERB 12/06/2021 12:05 AG81079 35.70 6304.40 6,268.70 MW07-50 North side of ERB Pond 12/06/2021 11:37 AG81080 25.98 6302.20 6,276.22 MW08-25 South of Pond 1 12/06/2021 14:40 AG81096 13.21 6258.30 6,245.09 MW12 South of Biosolids Building 12/06/2021 12:59 AG81081 27.58 6288.80 6,261.22 MW13 South of Pond 2 along HVC 12/06/2021 13:56 AG81097 8.28 6263.40 6,255.12 Alpine County Soils pH EC %Sat TKN NO3-N Total P Exch P SO4 CI S2A Celio Ranch 11/08/2021 8.11 8.30 64.4 2450 5.06 941 14.0 180 2780 SM Bently Ranch 11/08/2021 6.47 0.507 32.0 901 0.42 816 8.69 11 375 S4A Gansberg Ranch 11/08/2021 6.26 0.754 56.8 6690 5.37 993 52.8 15 350 S5A Gansberg Ranch 11/08/2021 5.96 0.391 30.6 1300 5.06 600 14.0 1 325 S6A Neddenriep Ranch 11/08/2021 7.38 1.01 40.9 2610 15.9 654 12.1 14 350 S7A Bruns Ranch 11/08/2021 5.84 0.219 36.9 2100 3.48 772 7.73 1 250 CEC Cu Mo K Ca Mg Na SAR %Na S2A Celio Ranch 11/08/2021 22.6 4.4 0.71 1900 224 302 1480 15.16 17.11 SM Bently Ranch 11/08/2021 19.7 2.0 0.67 814 78.4 12.9 46.7 1.29 <1 S4A Gansberg Ranch 11/08/2021 29.1 4.4 0.83 3960 56.0 6.91 44.2 1.48 <1 S5A Gansberg Ranch 11/08/2021 15.6 5.5 0.75 3700 98.4 11.2 52.2 1.33 <1 S6A Neddenriep Ranch 11/08/2021 18.5 2.7 0.78 2900 56.0 8.41 16.0 0.53 <1 S7A Bruns Ranch 11/08/2021 16.6 5.2 0.68 2580 48.5 21.2 8.21 0.25 <1 Page 1 of 1 Sample Comments Site Date Time Comments HVC-1 12/29/2021 15:53 Inaccessible due to snow HVC-2 10/28/2021 16:49 Dry HVC-2 11/24/2021 13:51 Dry HVC-2 12/29/2021 15:38 Inaccessible due to snow HVC-3 11/24/2021 13:57 Dry HVC-3 12/29/2021 15:45 Frozen HVC-5 10/21/2021 15:01 No Flow HVC-5 10/22/2021 12:01 No Flow HVC-5 10/23/2021 15:14 No Flow HVC-5 10/28/2021 16:42 Dry HVC-5 11/09/2021 07:26 No Flow HVC-5 11/24/2021 13:55 Dry HVC-5 12/29/2021 15:38 Frozen MW11 12/31/2021 23:59 Unable to sample due to mud in the Well Casing S4A 11/08/2021 15:37 TKN Test failed QC Precision 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: EMERGENCY POND MW FIELD MONITORING RECORD Samplers: Purpose: _ Preservative Std Check Depth to Well Water Cale Actual Well Casing Depth to Column Water to Water �, a Temp EC Bottom Diameter GW Height Purge Purged v Site ID# Time C H S/cm ft inch ft ft Gallons Gallonso _ _ H EC COMMENTS CONTROL eo.90 2 IIMW1 .5 65.80 2 4' MW02-50 50.90 2 M W03-50 50.80 2 MW04-50 51.00 2 �MW07-50 52.601 2 4MW08-25 1U (l�H� �r � �3 I 20.60 2 13.2f y 1.2s Q FZz b �" c 5 �mwi 1 41.0 2 MW12 31.50 2 zy , �� Otis �,�� s'61 MW13 14.40 2 Trip Blank Groundwater samples shall be collected only after>_1 well volumes Gallons to flush=1 x 7.48 x 3.14 x 0.083`x water column height IpH 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 2:5 minutes. For 50'well whose water level is 35 feet from ground level: Water column height=50'-35'=15' File:DALab\Forms\Field Sheets\Field ERB doc 10/14/2015 Flushing Record Date: /17 Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed t 5% t 5% t 5% Sampler Comments Mlfvs 2 Ire � LD V� w c" 7 s 11l 3 z) S 2 , a q s 6, y3 , o Note:Temp,pH,EC must zgeniiize 15:6 lctr guCc9Sstve measurements taken in 1jwt ais_5 minutes CIALab\Forms\Field Sheets\Monilor_Well_Flushing_Record doc SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: 2 x -zi EMERGENCY POND MW FIELD MONITORING RECORD Samplers: ,y Pur ose: > 1 �� Preservative Stcl Check Depth to Well Water Calc Actual Well Casing Depth to Column Water to WaterM Temp EC Bottom Diameter GW Height Purge Purged Site ID# Time CpH uS/cm ft inch ft ft Gallons GallonsO pH EC COMMENTS CONTROL 80.90 2 -IIMW1 .5 /rc�3 0 �,Zz j?3 65.80 2 "`��,! 5.a�J ►_0 3 �, MW02-50 .50.90 2 �IMW03-50 50.80 2 - MW04-50 l rzc5 E-0 40.2e c�o-� 51.00 2 MW07-50 �13 z �-�3 �38 52.60 2 x'.'� 2uv �.� 5 ,/ I MW08-25 20.60 2 MW11 41.0 2 �Wl2 1Z�l c7. 3 CP•`�l 2o� 31.50 2 2� 3.0a 1 MW13 14.40 2 Trip Blank �G` ' ?�50 �I Groundwater samples shall be collected only after Z 1 well volumes Gallons to flush=1 x 7.48 x 3.14 x 0-D83 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 Dave 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 2:5 minutes. for 50'well whose water level is 35 feet from'ground level: Water column height=50'-35'=15' File:DALab\Forms\Field Sheets\Field ERB.doc imianm5 Flushing Record Date:12 Temp 7EC Minutes Gallons °C PH PS Well Time Flushed Flushed t 5% #5% t 5 o Sam ler I Comments PS „og ;Z 3 3-2 2- if3 -.> i//8 CO ;/32 .y.5 2.2 3C� 13 /1400 2v </a<? ,22 - i. fl,Z 12 2 /Z 1. 5 9-Z td.SX 215Y A&I-,2 Eq. _.i 2 !1� / 2 (0. 240� S[Na:Temo,off EC At StaDIIIZa±j/for succassive measuramen:i ite"A ,>3 R11T11At85 D\Lah\Forms\Field Sheats\Monitor_vvall_Flushing_Racord doc SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: L' EMERGENCY POND MW FIELD MONITORING RECORD Samplers: - Purpose'. _ Preservative Std Check Depth to Well Water Calc Actual Well Casing Depth to Column Water to Water �, TempFP EC Bottom Diameter GW Height Purge Purged c> '— O Site IDS# Time "C S/cm ft inch ft ft Gallons Gallons in = _ � H EC COMMENTS [CONTROL �2t� b. `i I ��`( 80.90 2 �C�, j MW1 .5 65.80 2 MW02-50 50.90 2 MW03-50 b� �I 3 2 50.80 2 MW04-50 :51.00 2 ��MW07-50 52.60 2 I �IMW08-25 20.60 2 MW11 41.0 2 MW12 31.50 2 I IMW13 14.40 2 Trip Blank Groundwater samples shall be collected only after z 1 well volumes 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- 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' File:D:U_afformsTield SheetsTield ERB.doc 10/14/2015 Flushing Record Date: i—? -(q_ --) j Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed t 5% t 5% t 5%, Sampler Comments LVI-r "7 -Z �ZY IZ S `6- Note.Temp,pH,EC must stabilize t 5%for successive measurements taken in intervals>5 minutes. D:\Lab\Fonns\Field SheetsWonitor_Well_Flushing_Record doc SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: 0, Z FIELD MONITORING RECORD Samplers: �,t L , 1� � PU ose: l 1��7 P\e-h t Preservative Std Check U Temp EC DO Cl2 - o IH2SO4 6 Site l D# Time °C pH uS/cm mg/L mg/L �, pH= _ � pH EC Comments I�u 'Temperature of Control when oC Init ;samples received at Lab, °C Note: pH Std Check uses a 7.00 buffer.pH meter must be re-standardized if result exceeds 7.00 t 0.05. EC Std Check uses a 200 N51cm standard. 0:\Lab\Forms\Field SheetsTield doc 04/11/15 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: o zf? 2 / ACMW FIELD MONITORING RECORD Samplers: �-u 1J L r e: Preservative Std Ch_e_ck Depth to Well Water Calc Actual Depth Well Casing Column Water to Water Site 1D# to GW Temp EC Bottom Diameter Height Purge Purged o H2SO4 0 _ Time ft °C pH S/cm ft inch ft Gallons Gallons rn pH= _ H EC COMMENTS -C ry Z v f�Z l�S 22.6 2 --7 ACMW-01AW �,�'k ,ACMW-01 BE 23.8 2 ACMW-02N ;z'_�,'1 q.2D N.1 w,s5� '28 34.1 2 y.2 _ J ACMW-02S 113Z i0.-75 /61.z W- 1 /Cb 21.9 2 105 I.ACMW-04W 29.0 2 Do ACMW-06S /Olf9 �yys 5 12.1 1,�3 6,15 29.9 2 Trip Blank o3 0-0/ Temperature of Control °` 'W when samples received at Lab T Groundwater samples shall be collected only after>_1 well volumes 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- 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 t 0 05.EC Std Check have stabilized to approximately t 5%for each successive Water column height=depth of well-water level uses a 200 pS/cm standard measurement taken in intervals a 5 minutes. for 50'well whose water level is 35 feet from ground level: Water column height=50'-35'=15' rl X1 arAA%Al Ai irnnnir. Flushing Record Date: w- 23 ,'i ----i - hemp�---- EC - — - ------ - Minutes Gallons °C pH PS well Time Flushed Flushed t 5% t 5% ±5% Sampler Comments A"I Z L it Z �'• 7 i�?'� ACMW cl(rS /03L1 I z 12�-30- 9L 610 12 `/ 23 1`k=Mr.�/ 'vi/9t�J //5� Z 1.�� 1/1,5 G�.(.�(.' `I`/,N :�>7+r1-�a✓ ii�� u� -r -f 61,U+ - i 1 lZc` i L 2 61- .L 1>5 ,PJ(Mcu -02G l i U S94/t& � � Ile.z Diu U i2,/u Note:Temp,pH.EC must slabilize t 5%for sumeawive measurements taken in Intervals>5 minutes �� oTorms\Field Sheets\YMonitor_Well_Flushing_Record.doc Group 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: /- /C, .4 ACMW FIELD MONITORING RECORD Samplers: c 1l G'l 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 TZ," mi. H.so, cSlte 1D# Time ft °C H S/cm ft Inch ft ft Gallons H= _ H EC COMMENTS ACMW-21 /i-Z G,.as /}S �� Z �. 5 30.0 2 '� Ir.River Ranch Rd.East side of Hwy BB CMW-22 1��3 c�, � %� ►ZZ ,'i.Y�, 59.5 2 3 10n Fredericksburg Lane.near S7 ACMW-23 50.0 2 ��, , Sd i I JostreamofSW-15 r f J ACMW-24 '�. 3 50.0 2 .y ►' �- z Downstream pr SW-15 i ACMW-25 '3VS '� �5 I .Z lH ( ��> �� , / ).tlj BehindNeddennep'sonWestside Lane ; 30.0 2 dirt rd between Hwv 88 and Carson River (ACMW-26 `: � � 1 (,si izlr� (�,35 Z3S2.-� 30.0 2 '"�' On Westside Lane Staleline Trip Blank AG80U 9�'°D Temperature of Control In�al hen samples received at Lab "`7 Gallons to flush=1 x 7.48 x 3.14 x 0.0831 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-20 to 26 doc 9/20/2017 Flushing Record Date: Temp EC Minutes Gallons °C pH 1 PS Well Time Flushed Flushed t 5% i 5% t 5% Sailer Comments �}'Clijdt? �� [�L 2 , � �3► � 33 6E`1 �c(K�, ��' U 46 i IO 17•4 6,31 �L($ A'i Gil L 3 Z il�v �i , ti „O's 112 i ! Lf U.cU ivy i 12 V /2 i 3 p,? &.vio /o q la i�1 13a � i3 2 ik- 3 0.30 23`1 1 �?'3 J PJO i 2- 1 /1/-y a-3G, 2.35 i Note:Temp,pH,£'C must stabilize±-5%for 3uccessrva measurements taken in intervals>5 minuses Y DALablFormsWield SheelslMonitor_Well_Flushing_Record doe Group 4 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date- �1, l i,� Li ACMW FIELD MONITORING RECORD Samplers:- `nor i i-t_L 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 o I42SO4 z Site 1 D# Time ft °C pH PS/cm ft Inch ft Gallons Gallons r„ H= S ° H EC COMMENTS 'I - A�3�� `�' .'iy ��, (��_ten t� � r, 2 / ✓ � � �� Lr ACMW 09D r� h 45.1 2 I 'L= ACM-10 G� 091tw <;�.l0 12. 1 ,�� 3s.5 2 . � , i 2- AK% / ACMW-11 iC�/1 �33 r► '� r1 �b �'� u 33.5 2 r� ACMW-14 ,// � � .�' /Z..2- �.i-1 -F�-y 30.0 2 i2.0 2.0 /� �✓ S5 L1L � GW-05 /� IGW-0QRO '�i% 13G/ U�.C.� 3u0 Trip Blank 'Temperature of Control nNal when samples received i at Lab Minimum gallons to flush=1 x 7.48 x 3.14 x 0.0832 x water column height IpH 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 t 0.05. EC Std Check Inave 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 t 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' DALabTormsTield SheelslField ACMW-Group_4.doc 1/22/2016 Flushing Record Dale: ' Temp !U Minutes Gallons °C pH F pS Well Time Flushed Flushed t 5% t 5% t 5% Sampler Comments "V6 to 3� 3 c , 11./'J U.U�? 8�5 SILIItj r, t 3 11 ,E I G.yl i I 12 1 6'.2 1�3 r-t i0C, ;-2j 6, ;1 bt�CD 12,2 i I � I 1 Notes:Temp,pH.EC must stabilize 15%for successive measurements taken in intervals 5 minutes D:%Lab%Forms\Field Sheets%Monilor_Well Flushing_Record doc Group 3 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: f i ! ACMW FIELD MONITORING RECORD Samplers: 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 e c Zgp4 0 Site 1D# Time ft °C off S/cm ft Inch ft Gallons Gallons �' H= _ H EC COMMENTS ACMW-08N `! 11. ? �L,,.25 /,1 70.1 2 6" I �Le ACMW-12 !!zl .� �t. 4p.tY� 1479 ;c tACMW-13 12P) 12-01 12-? rz-1 20.0 2 .3 �.� ,.L/ ACMW-20 . ,�. ,vc w. �l 21.5 2 1 C7 /✓ 1 u GW-11 , ; ; 11�1Y -- /5 t; Trip Blank + Temperature of ControlTltial In 'when samples received at Lab `� 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>_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' D\Lab\Forms\Field Shects\Field ACMW-Group_3 doc 912012017 Flushinc! Record Date: Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed t 5% t 5% t 5% Sampler Comments c,�L� -i2 rli1 i� u-5 C-D 1121 lZ r"Lt.,414z ltCM w-/3 1269.1 Z . y , o 1 5jce-i Pao-- 5- 12 .E Nam Term,pH.Ev must stabilize t 5'.,for sjCcassive measurements lakes io intervals?5 mrnuees. ).\LaNFormsTield SheetslMonitor_Well_Flushing Record.doc vroup 5 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: � ACMW FIELD MONITORING RECORD Samplers: Pur ose: Preservative Sid Check Depth to Well Water Calc Actual Depth Well Casing Column Water to Water to GW Temp EC Bottom Diameter Height Purge Purged o '_' H2sO. a Site lD# Time ft �C H SI= ft Inch ft Gallons Gallons r° H= _ > pH EC COMMENTS ACMW-1 S cr,y �l�i� i� s�,z �3 Z 29.5 2 ACMW-16 !e i�.yg ,3_c� c-_2z i�� 29.0 2 ),i 1i2 2_6 i 5 i .i CMW-17 /,33 � �D � i1.5 c ._3 eS. 30.0 2 �•"I 13 t� ACMW-18 _ /icy c�.�� -� C� 3 �� 0 28.0 2 �� } � Z �� ✓ ,.L; ACMW-19 ��3 �� > > �� .�y zyZ 20.0 2 I 3 ) 7 u Trip Blank ��'` =� �0U �I I 9 Temperature of Control InRal when samples received lat Lab Minimum gallons to flush=1 x 7.48 x 3.14 x 0.083 x water column height jpH 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 t 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 t 5%for each successive for 50'well whose water level is 35 feet from ground level: measurement taken in intervals a 5 minutes. i Water column height=50'-35'=15' DALab\Forms\Field SheetsTield ACMW-Group_5.doc 112 212 01 6 Flushing Record Date: Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed t 5% f 5% t 6% Sampler Comments bc/eo G 43.1 OcPIq iL i CQ iy, 5 2 i3.2 ►v1W-JC.,J G�S� � 2 1�j^� �� I Z I ti �I �Sl-t�+r�� G�jSYs' i3r -6 G tZ I D � C►r,tij 'i�' 1(�.�3 2- 9 4- i 0 i3. CP Cr, C,9 237 i033 12 i -� 6. Wy 2yZ 1055 1 a� l 0 ug %Z.0 Co.2,3 03', Z )Z / 3 N YS.Gj Note:Temp,pH,EC must stabilize t 5%for successive measurements taken in intervals>5 mlrtutes. D:\Lab\Forms\Field Sheets\Monitor_Well_Flushing_Record doc