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Home My WebLink About1st Quarter 2021 Reclamation Permit Monitoring Report ��'0` • ,91115° • South Tahoe 00 Public Utility District 71 1275 Meadow Crest Drive-South Lake Tahoe-CA 96150-7401 Phone 530 544-6474-Fax 530 541-0614-www.5tpud.u5 Friday May 7, 2021 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, 1st Quarter 2021 Mr. Plaziac: Enclosed is the South Tahoe Public Utility District's 2021 1st quarter self-monitoring report for January through March 2021. 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) No wastewater was pumped to the ERB during this quarter. There was no wastewater remaining in the ERB on March 31, 2021. The ERB was inspected on February 3, 2021, February 18, 2021, February 26, 2021 and March 29, 2021; the reports are attached. Export Pipeline The District's Final Effluent Export Line was inspected on January 17, 2021. No damage to the pipe was found. Report is attached. 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 monitored. 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, -- i 9p CS Si C 047912 IL r John Thiel General Manager/ Engineer JTh i e I0_stp u d.dst.ca.us D:1LahontaMReports\2021 1 st Quarter Report doc LRWQCB - Page 3 Enclosures: Monthly Report Summary Pages Operational problems and maintenance activities. 1 Wastewater Treatment plant 6 Permit Compliance Record 1 Emergency Retention Basin (ERB) Inspection report. 8 Export Pipeline Inspection Report: 1 Sample site locations 2 Map of Alpine County sample sites 3 Harvey Place Reservoir recycled water storage 2 Final Effluent Trihalomethane Test Results 10 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 6 Alpine County Monitoring Wells Purge Records 18 Photos of Irrigation ditch flows 0 Total pages 69 pdf: Lahontan Regional Water Quality Control Board LRWQCB Executive Officer— Michael Plaziak LRWQCB Senior Engineer— Robert Tucker 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 — Jim Hilton 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 DALahontan\Reports\2021 1 st Quarter Report doc Operational Problems and Major Maintenance Activities January— March 2021 Wastewater Treatment Facilities • The District continued to operate under Covid-19 emergency procedures. Every department in the Operations and Maintenance staff at the District continued to segregate into distinct groups which did not overlap. The Waste Water Treatment Plant remained fully operational and in full compliance with monitoring requirements. Frequency of testing was not affected. • Heavy Maintenance Department made temporary repairs to tears in the Emergency Retention Basin (ERB). Permanent repairs will be performed when weather permits. • The District continued utilizing control system upgrades at the Luther Pass Pump Station to shift export pumping to off-peak electricity rate periods in order to save energy costs. Wastewater Conveyance System • Sewer Pump Stations o Pump #2 at Tahoe Keys Sewer Pump Station was pulled, cleaned and reinstalled. o Pump #2 at Upper Truckee Sewer Pump Station was pulled, inspected, cleaned and reinstalled. o Pump #2 at Ponderosa Sewer Pump Station was pulled, impeller was cleaned of debris and pump was reinstalled. o Production Efficiency tests were run on Pumps #1, #2, #3 and #4 at Luther Pass Pump Station. o Volute threads on Pump #2 at Upper Truckee Sewer Pump Station were repaired. • Collection System o Only regular maintenance activities were performed on the collection system. Alpine County Disposal Facilities • There were no modifications or additions to, or any major maintenance or construction conducted on, or any major problems occurring at the disposal facilities in Alpine County for January thru March, 2020. Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 5/4/2021 WASTEWATER TREATMENT PLANT MONTHLY REPORT 1:54 PM January 2021 <--------------------Flow MGD--------------------> BOD SS 2-Hr Peak Pond Pond Precipitation mg/L mg/L Date Day Inf Inf Eff Return Inf Inch Tyne Raw Final Raw Final 1/1/2021 Fri 3.39 4.6 3.97 329 4.9 246 2.3 1/2/2021 Sat 3.47 4.8 3.02 1/3/2021 Sun 3.18 4.4 3.73 1/4/2021 Mon 3.13 4.2 3.62 0.26 Rain 1/5/2021 Tue 2.86 3.7 3.47 1/6/2021 Wed 2.74 3.5 2.75 258 55 229 3.1 1/7/2021 Thu 2.77 3.6 3.34 1/8/2021 Fri 2.91 36 3.01 1/9/2021 Sat 312 41 3.33 296 5.0 211 2.9 1/10/2021 Sun 2.97 4.4 3.49 1/11/2021 Mon 2.71 3.6 3.04 1/12/2021 Tue 2.68 35 2.98 1/13/2021 Wed 2.75 3.6 2.84 252 3.3 206 10 1/14/2021 Thu 2.69 3.5 3.21 1/15/2021 Fri 2.88 3.6 3.25 1/16/2021 Sat 3.27 4.4 3.60 290 6.0 210 1.6 1/17/2021 Sun 3.33 4.7 3.59 1/18/2021 Mon 2.97 4.1 3.48 1/19/2021 Tue 2.72 3.6 3.02 1/20/2021 Wed 2.61 3.4 3.14 280 57 205 3.6 1/21/2021 Thu 2.69 3.4 3.29 1/22/2021 Fri 2.93 3.6 2.99 1/23/2021 Sat 3.27 4.3 2.91 0.08 Snow 313 6.3 208 3.1 1/24/2021 Sun 314 4.5 3.99 0.02 Snow 1/25/2021 Mon 2.77 3.6 3.12 0.06 Snow 1/26/2021 Tue 2.76 35 3.05 1/27/2021 Wed 2.76 34 3.16 0.38 Snow 246 73 171 3.7 1/28/2021 Thu 2.69 36 2.99 0.78 Snow 1/29/2021 Fri 2.98 39 3.22 0.07 Snow 1/30/2021 Sat 3.44 45 3.22 312 103 218 4.4 1/31/2021 Sun 3.24 44 3.78 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 91.82 121.6 101.60 0.00 0.00 1.65 2576 544 1904 25.5 Maximum 3.47 4.8 3.99 0.00 0.00 0.78 329 103 246 4.4 Minimum 2.61 3.4 2.75 0.00 000 0.02 246 3.3 171 1.0 Average 2.96 3.9 3.28 024 286 60 212 2.8 #Tests 31 31 31 0 0 7 9 9 9 9 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 5/4/2021 WASTEWATER TREATMENT PLANT MONTHLY REPORT 1:54 PM January 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 day-Median Raw Final Raw Final 1/1/2021 Fri 7.51 7.68 8.1 1 < 1 1/2/2021 Sat 7.44 772 7.8 < 1 < 1 1/3/2021 Sun 7.58 781 7.8 < 1 < 1 39.0 32.0 1/4/2021 Mon 756 7.71 8.2 < 1 < 1 1/5/2021 Tue 7.53 7.69 7.8 2 < 1 1/6/2021 Wed 7.58 7.70 9.6 < 1 < 1 264 264 1/7/2021 Thu 754 7.63 7.0 < 1 < 1 1/8/2021 Fri 7.60 7.77 6.8 < 1 < 1 1/9/2021 Sat 7.64 7.86 7.0 < 1 < 1 264 270 1/10/2021 Sun 7.68 7.75 7.2 < 1 < 1 1/11/2021 Mon 7.64 7.73 72 < 1 s 1 1/12/2021 Tue 7.55 775 7 1 1 < 1 1/13/2021 Wed 7.63 779 6.4 < 1 < 1 1/14/2021 Thu 7.60 7.72 6.2 < 1 < 1 1/15/2021 Fri 7.55 7.72 6.1 < 1 < 1 1/16/2021 Sat 7.60 7.78 6.0 < 1 < 1 1/17/2021 Sun 7.57 7.72 7.0 < 1 < 1 1/18/2021 Mon 7.46 7.75 64 1 < 1 1/19/2021 Tue 7.47 7.70 66 < 1 < 1 1/20/2021 Wed 7.56 7.80 8.4 1 < 1 1/21/2021 Thu 7.42 7.62 4.7 1 < 1 1/22/2021 Fri 7.60 7.78 5.5 < 1 < 1 1/23/2021 Sat 7.45 7.75 68 < 1 < 1 1/24/2021 Sun 7.60 777 53 < 1 < 1 1/25/2021 Mon 7.41 7.71 53 < 1 < 1 1/26/2021 Tue 7.65 7.77 5.3 < 1 < 1 1/27/2021 Wed 7.51 7.84 5.8 < 1 < 1 1/28/2021 Thu 7.70 7.82 9.0 < 1 < 1 1/29/2021 Fri 7.56 7.65 7.9 < 1 < 1 1/30/2021 Sat 7.58 7.89 6.1 < 1 < 1 1/31/2021 Sun 7.51 7.79 6.2 < 1 < 1 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 234.28 240.17 212.6 32 31 39.0 32.0 528 534 Maximum 7.70 7.89 9.6 2 < 1 39.0 32.0 264 270 Minimum 7.41 7.62 4.7 < 1 < 1 39.0 32.0 264 264 Average 7.56 7.75 6.86 1.0 < 1.0 39.0 32.0 264 267 #Tests 31 31 31 31 31 1 1 2 2 Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 5/4/2021 WASTEWATER TREATMENT PLANT MONTHLY REPORT 2:16 PM February 2021 <--------------------Flow MGD--------------------> BOD SS 2-Hr Peak Pond Pond Precipitation mg/L mg/L Date Day Inf Inf Eff Return Inf Inch Tyne Raw Final Raw Final 2/1/2021 Mon 296 3.9 3.39 2/2/2021 Tue 2.88 3.9 3.23 0.14 Snow 2/3/2021 Wed 2.81 3.6 3.21 266 7.8 179 2.5 2/4/2021 Thu 2.89 3.7 3.16 2/5/2021 Fri 3.17 4.1 2.89 2/6/2021 Sat 3.56 47 337 297 95 210 2.6 2/7/2021 Sun 3.34 4.7 4.24 2/8/2021 Mon 294 4.0 3.43 2/9/2021 Tue 2.84 3.8 3.37 265 8.4 198 17 2/10/2021 Wed 2.84 3.7 347 2/11/2021 Thu 2.98 3.9 3.02 0.66 Snow 2/12/2021 Fri 3.27 4.2 3.87 0.18 Snow 2/13/2021 Sat 3.62 47 3.18 0.17 Snow 2/14/2021 Sun 3.64 5.0 422 0.01 Snow 338 10.9 259 32 2/15/2021 Mon 3.48 47 385 0.01 Rain 2/16/2021 Tue 320 4.4 4.04 2/17/2021 Wed 311 4.0 3.86 2/18/2021 Thu 3.13 3.9 2.95 2/19/2021 Fri 3.37 4.3 3.74 001 Snow 2/20/2021 Sat 3.56 4.6 3.53 017 Snow 296 12.0 202 3.7 2/21/2021 Sun 3.33 4.6 3.95 2/22/2021 Mon 3.02 3.9 3.28 2/23/2021 Tue 2.91 38 3.34 2/24/2021 Wed 2.89 3.8 3.30 252 9.3 187 2.7 2/25/2021 Thu 2.96 3.8 323 2/26/2021 Fri 3.24 4.0 3.82 2/27/2021 Sat 3.58 4.7 3.21 312 10.8 254 2.2 2/28/2021 Sun 3.30 4.9 3.73 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 88.82 117.3 97.88 0.00 0.00 1.35 2026 68.6 1489 18.7 Maximum 3.64 5.0 4.24 0.00 0.00 0.66 338 12.0 259 3.7 Minimum 2.81 3.6 2.89 000 0.00 0.01 252 78 179 1.7 Average 3.17 4.2 350 0.17 289 9.8 213 2.7 #Tests 28 28 28 0 0 8 7 7 7 7 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 5/4/2021 WASTEWATER TREATMENT PLANT MONTHLY REPORT 2:16 PM February 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 2/1/2021 Mon 747 7.65 70 1 < 1 35.0 33.0 2/2/2021 Tue 7.41 7.59 78 < 1 < 1 2/3/2021 Wed 7.55 7.71 83 < 1 < 1 296 278 2/4/2021 Thu 7.51 7.54 9A < 1 < 1 2/5/2021 Fri 7.53 7.60 8.5 < 1 < 1 2/6/2021 Sat 760 7.70 73 1 < 1 2/7/2021 Sun 7.65 7.69 7.3 < 1 < 1 2/8/2021 Mon 7.53 7.65 7.7 < 1 < 1 2/9/2021 Tue 7.53 7.81 8.5 1 < 1 2/10/2021 Wed 7.40 7.79 8.0 < 1 < 1 2/11/2021 Thu 7.52 7.66 9.1 < 1 < 1 2/12/2021 Fri 7.58 7.79 8.2 < 1 < 1 2/13/2021 Sat 7.50 7.72 9.0 < 1 < 1 2/14/2021 Sun 7.42 7.81 66 < 1 < 'I 2/15/2021 Mon 7.60 7.77 77 < 1 < 'I 2/16/2021 Tue 7.44 7.73 7.1 < 1 < 1 2/17/2021 Wed 7.56 7.82 7.7 < 1 < 1 2/18/2021 Thu 7.54 7.73 7.1 < 1 < 1 2/19/2021 Fri 7.51 7.78 7.3 < 1 < 1 2/20/2021 Sat 7.44 7.74 8.1 < 1 < 1 2/21/2021 Sun 7.64 7.82 8.5 < 1 < 1 2/22/2021 Mon 7.59 7.91 8.2 < 1 < 1 2/23/2021 Tue 7.38 7.80 76 < 1 < 1 2/24/2021 Wed 7.52 7.86 73 < 1 < 1 300 280 2/25/2021 Thu 7.55 7.65 12.0 < 1 < 1 2/26/2021 Fri 7.54 76 < 1 < 1 2/27/2021 Sat 7.54 7.75 7.2 < 1 < 1 2/28/2021 Sun 753 7.71 8.0 < 1 < 1 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 210.58 208.78 224.1 28 28 350 33.0 596 558 Maximum 7.65 7.91 12.0 1 < 1 350 33.0 300 280 Minimum 7.38 7.54 6.6 < 1 < 1 350 33.0 296 278 Average 752 7.73 8.00 1.0 < 1.0 35.0 33.0 298 279 #Tests 28 27 28 28 28 1 1 2 2 Page 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT 5/4/2021 WASTEWATER TREATMENT PLANT MONTHLY REPORT 2.23 PM March 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 3/1/2021 Mon 2.98 38 3.48 3/2/2021 Tue 287 3.7 3.14 3/3/2021 Wed 2.84 3.6 3.45 266 9.0 179 1.8 3/4/2021 Thu 2.94 3.8 3.22 3/5/2021 Fri 3.26 4.0 3.17 3/6/2021 Sat 3.57 4.6 3.37 0.06 Snow 300 8.9 205 2.5 3/7/2021 Sun 3.39 4.6 4.28 3/8/2021 Mon 301 3.9 3.37 001 Snow 3/9/2021 Tue 2.92 3.8 3.50 282 70 204 2.3 3/10/2021 Wed 2.90 3.7 3.11 0.23 Snow 3/11/2021 Thu 300 38 340 0.11 Snow 3/12/2021 Fri 322 40 326 0.01 Snow 267 83 162 24 3/13/2021 Sat 356 4.6 3.57 3/14/2021 Sun 3.29 4.5 3.87 0.01 Snow 3/15/2021 Mon 3.07 3.9 3.06 0.09 Snow 3/16/2021 Tue 3.01 37 343 259 6.9 178 2.7 3/17/2021 Wed 2.98 3.7 3.08 3/18/2021 Thu 3.22 4.1 3.93 0.28 Rain 3/19/2021 Fri 3.55 4.3 3.66 0.50 Snow 3/20/2021 Sat 3.72 4.8 3.96 286 7.0 221 2.9 3/21/2021 Sun 353 4.8 3.57 3/22/2021 Mon 3.19 4.1 3.94 0.05 Snow 296 7.5 188 3.2 3/23/2021 Tue 3.09 4.0 3.41 0.05 Snow 3/24/2021 Wed 3.11 4.0 3.62 3/25/2021 Thu 3.14 3.9 3.31 3/26/2021 Fri 3.33 4.1 3.61 296 8.1 240 3.7 3/27/2021 Sat 3.58 4.6 3.58 3/28/2021 Sun 3.44 4.9 3.59 3/29/2021 Mon 330 4.2 3.91 3/30/2021 Tue 3.25 4.1 4.67 303 6.9 198 28 3/31/2021 Wed 3.21 4.1 2.82 Permit Max 7.7 45 60 Permit Min Permit Ave 30 30 Total 99.47 127.7 109.34 0.00 0.00 1.40 2555 69.6 1775 24.2 Maximum 3.72 4.9 4.67 0.00 0.00 0.50 303 9.0 240 3.7 Minimum 2.84 36 282 0.00 000 001 259 6.9 162 1.8 Average 3.21 4.1 353 013 284 7.7 197 2.7 #Tests 31 31 31 0 0 11 9 9 9 9 Page 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT 5/4/2021 WASTEWATER TREATMENT PLANT MONTHLY REPORT 2 23 PM March 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 3/1/2021 Mon 7.49 7.77 7.5 < I < 1 33.0 320 3/2/2021 Tue 7.42 7.68 7.2 < -1 < 1 3/3/2021 Wed 7.51 7.68 7.6 < i < 1 3/4/2021 Thu 7.53 7.77 6.5 < I < 1. 3/5/2021 Fri 7.49 7.63 8.0 < I < 1 3/6/2021 Sat 7.52 7.73 6.7 < 1 < 1 3/7/2021 Sun 7.52 7.68 69 < 1 < 1 3/8/2021 Mon 7.66 7.73 7.1 < 1 < 1 3/9/2021 Tue 7.46 7.75 7.0 < 1 < 1 3/10/2021 Wed 7.51 7.67 8.8 < 1 < 1 3/11/2021 Thu 740 7.61 6.7 < 1 < 1 3/12/2021 Fri 7.54 7.85 6.6 < 1 < 1 3/13/2021 Sat 7.61 7.67 7.1 < 1 < 1 3/14/2021 Sun 7.57 7.72 7.4 < 1 < 1 3/15/2021 Mon 7.63 7.71 6.2 < 1 < [ 3/16/2021 Tue 7.70 7.86 4.6 < 1 < 1 42.3 34.5 258 261 3/17/2021 Wed 7.52 7.78 9.5 < 1 < 1 3/18/2021 Thu 7.49 7.76 6.5 < i < 1 3/19/2021 Fri 7.59 7.73 7.4 < 1 < 1 3/20/2021 Sat 7.55 7.72 6.5 < 1 < 1 3/21/2021 Sun 7.48 7.71 7.7 < 1 < 1 3/22/2021 Mon 7.49 7.87 6.1 < 1 < 1 3/23/2021 Tue 7.58 7.79 6.9 < 1 < 1 45.6 363 3/24/2021 Wed 7.40 7.65 8.9 < 1 < 1 3/25/2021 Thu 7.51 7.61 6.4 < 1 < 1 3/26/2021 Fri 7.45 7.61 6.3 1 < 1 3/27/2021 Sat 7.28 7.63 7.1 1 < 1 3/28/2021 Sun 7.34 7.65 7.2 < 1 < 1 3/29/2021 Mon 7.54 7.77 6.2 < 1 < 1 46.2 36.1 3/30/2021 Tue 7.39 7.80 6.8 < 1 < 1 286 261 3/31/2021 Wed 7.52 7.80 6.3 < 1 < 1 Permit Max 9.00 23 Permit Min 6.50 Permit Ave Total 232.69 239.39 217.7 31 31 167.1 138.9 544 522 Maximum 7.70 7.87 9.5 1 < 1 46.2 36.3 286 261 Minimum 728 7.61 4.6 < 1 < 1 33.0 32.0 258 261 Average 7.51 7.72 7.02 1.0 < 1.0 41.8 34.7 272 261 #Tests 31 31 31 31 31 4 4 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 AugSep Oct Nov Dec Total Compliance Total Plant Inflow;7.7 MGD; Dry Weather 90 0 0 0 0 100.0% 2-Hour Peak Inflow; 18.5 MGD 90 0 0 0 0 100.0% BOD,30 Day Ave:30 mg/L 3 0 0 0 0 100 0% BOD, Max:45 mg/L 25 0 0 0 0 100.0% SS,30 Day Ave:30 mg/L 3 0 0 0 0 100.0% SS, Max:60 mg/L 25 0 0 0 0 100.0% pH,6.5 to 8.5 89 0 0 0 0 100.0% Total Coliforms, Max:240 MPN/100 mL 90 0 0 0 0 100.0% Total Coliforms,7-day Median:23 MPN 90 0 0 0 0 100.0% Total 505 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: b Z I Performed by: <'174/t 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: I'V-r7 -:S�nrutu i Vegetation control: S'Nw"FA Overflow Spillway: 6-akA Stairs North: x-)'j Stairs South: Mel- Top Fill Structure North: Top Fill Structure South: Drain Valve North: &eoty-� Drain Valve South: cf- Perimeter Fence & Gates: Valve House: Comments: Date of Inspection: 2 ?J, Performed by: C'OL-r ;;Valve House i,if t 'Qjjtlet Valve ' + I � + + + + + -+ + + I Nof trPond Stairs -' + + t + 4-1 11 IF I outlet Valve �' 1 S— + + + + + 4 South Pond � I ars J __ --_ + + + + + + + + + + + _ e South Tahoe Public Utility District ERB Inspection Date of Inspection: � /� Performed b P � y //'z. 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: / Vegetation control: Overflow Spillway: V� Stairs North: /?//A Stairs South: /U /14 Top Fill Structure North: _ Top Fill Structure South: Drain Valve North: 61• (/1 ! /jf Drain Valve South: — S n O 4 L/ <-d N Perimeter Fence & Gates: ��({ j ?� ; '��'� �� h"l 51`1 W`iy Valve House: Comments: Date of Inspection: Performed by: -- + + + + + + + + + + + - —Valve House -- + fl Outlet Valve '✓ r ILL + +; f + + + — F + t r} t Z -North Pond ram. <. � Stairs _7j --- + + + + + + + + , r.� { , Outlet Valve + id' + + + 'R { r r �jr Stairs + + + + + + + + + + + — + + + + + + + + + + + — South Tahoe Public Utility District ERB Inspection Date of Inspection: d Performed by: en)h za 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: Vegetation control: -NJ cy Overflow Spillway: Stairs North: CT G O Stairs South: i t._J _' >. Top Fill Structure North: Top Fill Structure South: C°Vw-Ef) s Drain Valve North: G�CL-M rI)C�_OUIIJP V/'kL_t' Drain Valve South: Ca ) Perimeter Fence & Gates: SMk L V CAI,4� tit. V_"4_ i-� �vJ "j Oj:ra Valve House: Comments.- 6 J- ►ne ,� � le �,. c� � � fe�, � 1 Ar o v( 110r+ un lc � .f r�, I", r�, C p►n C r t"�c f ro it: e ..r�f w Date of Inspection: Performed by: V + - + + + - Valve House flo Outlet Valve f - North Pone ' stairs Outlet Valve ' If, ~R 1 South Pend Stairs , South Tahoe Public Utility District E" Inspection Date of Inspection: ; l '� 1 Performed by: �) A (A A eA r 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: (1 )1) ; i V'c '� Vegetation control: ...C( Overflow Spillway: 1> Stairs North: Stairs South: Top Fill Structure North: - Top Fill Structure South: Drain Valve North: 6 P, c f {� �• Drain Valve South: S/i Perimeter Fence & Gates: Valve House: Comments: r / Y 4- 1�G S l I_'itc'fPY t. r. fr Date of Inspection: Performed by: ;,Valve qu�e--` ?�f -- but�t Valve , .lyprtri POnd• I -Outlet Value CI ,�. { S,,aoth Pond IL Stairs r SOUTH TAHOE PUBLIC UTILITY DISTRICT MEMORANDUM Date: May 7, 2021 =�tlo To: John Thiel, Tim Bledsoe From: Larry McDonough Topic: Export Line Check ************************************************************** On Jan, 7, 2021 Cuz Cullen, Bill Otto and I conducted our check of the District's export line from the treatment plant to station 564+06 near the Harvey Place reservoir. No damage to the pipe was found. Total dissolved solids was 570ppm at Harvey Place reservoir inlet. CC Dan Arce EXPRT201.MEM 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 `. 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Irrigation-Blended Recycled Water J. 0 1.500 9,000 6,000F..t SOUTH TAHOE PUBLIC UTILITY DISTRICT " RECYCLED WATER MONITORING PROGRAM WELL LOCATIONS W E CARSON VALLEY GROUNDWATER BASIN (6-6) s ALPINE COUNTY, CA PaN:%:K.ISlO Npne CounI,V01,ALPMWa 2ix]6.nME 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 E1HPR\HPR Current S-g,Lah-n_Rm,O Harvey Place Reservoir Recycled Water Storage 4,000 3,500 3,000 m a� 2,500 L V Q 2,000 1,500 1,000 500 0 (O(O(O(O(O(O(O(O(O(O(O(Orf�rrf�rrf�rrf�r o0 W W.W W.W W o0 W W 06262062600000000000000� N N N N N N N N N N N N N N N W 61O N NM V��r W 65O N NM V�(O Izz W a OWN NM V u5(O I�00-O N NM V 0(O f-mm O7 N�Nm 0 0 0 0 0 0 0 0 0---0 0 0 0 0 0 0 0 0---0 0 0 0 0 0 0 0 0---000000000 0 0 0 0 0 0 0 0 0 O O O Stomge © © = BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 1 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: ClC0753 Received on Ice(Y/N): Yes Temp: 7 °C Attached is the analytical report for the sample(s) received for your project. Below is a list of the individual sample descriptions with the corresponding laboratory number(s). Also, enclosed is a copy of the Chain of Custody document(if received with your sample(s)). Please note any unused portion of the sample(s) may be responsibly discarded after 30 days from the above report date, unless you have requested otherwise. Thank you for the opportunity to serve your analytical needs. If you have any questions or concerns regarding this report please contact our client service department. Sample Identification Lab Sample# Client Sample ID Matrix Date Sampled By Date Submitted By C1 C0753-01 AG76338-WW-06 Raw Grab Liquid 03/02/21 17:16 OPS/LDA/BC 03/04/21 10:35 FedEx C1 C0753-02 AG76339-WW-05 Final Grab Liquid 03/02/21 17:13 OPS/LDA/BC 03/04/21 10:35 FedEx C1 C0753-03 AG76345-WW-10 Centrifuge Sludge 03/04/21 00:00 OPS/LDA/BC 03/04/21 10:35 FedEx Cake mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No. 10119 © © = BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 2 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C Laboratory Reference Number C1 C0753-01 Sample Description Matrix Sampled Date/Time Received Date/Time AG76338-WW-06 Raw Grab Liquid 03/02/21 17:16 03/04/21 10:35 Analyte(s) Result RDL Units Method Analysis Date Analyst Flag Volatile Organic Compounds by EPA 8260E 1,1,1,2-Tetrachloroethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,1,1-Trichloroethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,1,2,2-Tetrachloroethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,1,2-Trichloroethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,1-Dichloroethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,1-Dichloroethene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,1-Dichloropropene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,2,3-Trichlorobenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,2,3-Trichloropropane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,2,4-Trichlorobenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,2,4-Trimethylbenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,2-Dichlorobenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,2-Dichloroethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,2-Dichloropropane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,3,5-Trimethylbenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,3-Dichlorobenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,3-Dichloropropane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 1,4-Dichlorobenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 2,2-Dichloropropane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 2-Butanone(MEK) ND 30 ug/L EPA 8260B 03/12/21 21:17 JES 2-Chlorotoluene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 4-Chlorotoluene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES 4-Methyl-2-Pentanone(MIBK) ND 50 ug/L EPA 8260B 03/12/21 21:17 JES Acrolein ND 100 ug/L EPA 8260B 03/12/21 21:17 JES Acrylonitrile ND 100 ug/L EPA 8260B 03/12/21 21:17 JES Benzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Bromobenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Bromochloromethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Bromodichloromethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Bromoform ND 10 ug/L EPA 8260B 03/12/21 21:17 JES Bromomethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Carbon Tetrachloride ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Chlorobenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 © © = BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 3 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C Laboratory Reference Number C1 C0753-01 Sample Description Matrix Sampled Date/Time Received Date/Time AG76338-WW-06 Raw Grab Liquid 03/02/21 17:16 03/04/21 10:35 Analyte(s) Result RDL Units Method Analysis Date Analyst Flag Volatile Organic Compounds by EPA 8260E Chloroethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Chloroform ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Chloromethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES cis-1,2-Dichloroethene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES cis-1,3-Dichloropropene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Dibromochloromethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Dibromomethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Dichlorodifluoromethane ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Ethylbenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Hexachlorobutadiene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES I sopropyl benzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Methyl tert Butyl Ether ND 50 ug/L EPA 8260B 03/12/21 21:17 JES Methylene Chloride ND 30 ug/L EPA 8260B 03/12/21 21:17 JES Naphthalene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES n-Butylbenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES n-Propylbenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES sec-Butyl benzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Styrene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES tert-Butylbenzene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Tetrachloroethene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Toluene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES trans-1,2-Dichloroethene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES trans-1,3-Dichloropropene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Trichloroethene ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Trichlorofluoromethane ND 50 ug/L EPA 8260B 03/12/21 21:17 JES Vinyl Chloride ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Xylenes(m+p) ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Xylenes(ortho) ND 5.0 ug/L EPA 8260B 03/12/21 21:17 JES Surrogate:1,2-Dichloroethane-d4 102% 80-120 EPA 8260B 03/12/21 21:17 JES Surrogate:4-Bromofluorobenzene 98% 80-120 EPA 8260B 03/12/21 21:17 JES Surrogate:Toluene-d8 98% 80-120 EPA 8260B 03/12/21 21:17 JES Surrogate:1,2-Dichlorobenzene-d4 103% 0-200 EPA 8260B 03/12/21 21:17 JES mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 © © = BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 4 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C Laboratory Reference Number C1 C0753-02 Sample Description Matrix Sampled Date/Time Received Date/Time AG76339-WW-05 Final Grab Liquid 03/02/21 17:13 03/04/21 10:35 Analyte(s) Result RDL Units Method Analysis Date Analyst Flag Volatile Organic Compounds by EPA 8260E 1,1,1,2-Tetrachloroethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,1,1-Trichloroethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,1,2,2-Tetrachloroethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,1,2-Trichloroethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,1-Dichloroethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,1-Dichloroethene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,1-Dichloropropene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,2,3-Trichlorobenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,2,3-Trichloropropane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,2,4-Trichlorobenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,2,4-Trimethylbenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,2-Dichlorobenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,2-Dichloroethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,2-Dichloropropane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,3,5-Trimethylbenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,3-Dichlorobenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,3-Dichloropropane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 1,4-Dichlorobenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 2,2-Dichloropropane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 2-Butanone(MEK) ND 3.0 ug/L EPA 8260B 03/12/21 15:11 JES 2-Chlorotoluene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 4-Chlorotoluene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES 4-Methyl-2-Pentanone(MIBK) ND 5.0 ug/L EPA 8260B 03/12/21 15:11 JES Acrolein ND 10 ug/L EPA 8260B 03/12/21 15:11 JES Acrylonitrile ND 10 ug/L EPA 8260B 03/12/21 15:11 JES Benzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Bromobenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Bromochloromethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Bromodichloromethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Bromoform ND 1.0 ug/L EPA 8260B 03/12/21 15:11 JES Bromomethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Carbon Tetrachloride ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Chlorobenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 © © = BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 5 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C Laboratory Reference Number C1 C0753-02 Sample Description Matrix Sampled Date/Time Received Date/Time AG76339-WW-05 Final Grab Liquid 03/02/21 17:13 03/04/21 10:35 Analyte(s) Result RDL Units Method Analysis Date Analyst Flag Volatile Organic Compounds by EPA 8260E Chloroethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Chloroform 0.86 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Chloromethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES cis-1,2-Dichloroethene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES cis-1,3-Dichloropropene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Dibromochloromethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Dibromomethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Dichlorodifluoromethane ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Ethylbenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Hexachlorobutadiene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES I sopropyl benzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Methyl tert Butyl Ether ND 5.0 ug/L EPA 8260B 03/12/21 15:11 JES Methylene Chloride ND 3.0 ug/L EPA 8260B 03/12/21 15:11 JES Naphthalene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES n-Butylbenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES n-Propylbenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES sec-Butyl benzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Styrene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES tert-Butylbenzene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Tetrachloroethene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Toluene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES trans-1,2-Dichloroethene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES trans-1,3-Dichloropropene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Trichloroethene ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Trichlorofluoromethane ND 5.0 ug/L EPA 8260B 03/12/21 15:11 JES Vinyl Chloride ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Xylenes(m+p) ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Xylenes(ortho) ND 0.50 ug/L EPA 8260B 03/12/21 15:11 JES Surrogate:1,2-Dichloroethane-d4 104% 80-120 EPA 8260B 03/12/21 15:11 JES Surrogate:4-Bromofluorobenzene 103% 80-120 EPA 8260B 03/12/21 15:11 JES Surrogate:Toluene-d8 98% 80-120 EPA 8260B 03/12/21 15:11 JES Surrogate:1,2-Dichlorobenzene-d4 104% 0-200 EPA 8260B 03/12/21 15:11 JES mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 © © = BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 6 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C Laboratory Reference Number C1 C0753-03 Sample Description Matrix Sampled Date/Time Received Date/Time AG76345-WW-10 Centrifuge Cake Sludqe 03/04/21 00:00 03/04/21 10:35 Analyte(s) Result RDL Units Method Analysis Date Analyst Flag Solids Total Solids 23 0.10 % SM 254OG 03/08/21 16:59 DFL Volatile Organic Compounds by EPA 8260E 1,1,1,2-Tetrachloroethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,1,1-Trichloroethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,1,2,2-Tetrachloroethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,1,2-Trichloroethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,1-Dichloroethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC NLOhND 1,1-Dichloroethene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,1-Dichloropropene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,2,3-Trichlorobenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,2,3-Trichloropropane ND 880 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,2,4-Trichlorobenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,2,4-Trimethylbenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,2-Dichlorobenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,2-Dichloroethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,2-Dichloropropane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,3,5-Trimethylbenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,3-Dichlorobenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,3-Dichloropropane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 1,4-Dichlorobenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 2,2-Dichloropropane ND 660 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 2-Butanone(MEK) 160000 880 ug/kg dry EPA 8260B 03/13/21 01:05 JES 2-Chlorotoluene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 4-Chlorotoluene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC 4-Methyl-2-Pentanone(MIBK) ND 4400 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Acetone 210000 1800 ug/kg dry EPA 8260B 03/13/21 01:05 JES Acrylonitrile ND 8800 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Benzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Bromobenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Bromochloromethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Bromodichloromethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Bromoform ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC NRPDb Bromomethane ND 2200 ug/kg dry EPA 8260B 03/08/21 22:02 EEC mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 © © = BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 7 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C Laboratory Reference Number C1 C0753-03 Sample Description Matrix Sampled Date/Time Received Date/Time AG76345-WW-10 Centrifuge Cake Sludqe 03/04/21 00:00 03/04/21 10:35 Analyte(s) Result RDL Units Method Analysis Date Analyst Flag Volatile Organic Compounds by EPA 8260E Carbon Tetrachloride ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Chlorobenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Chloroethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Chloroform ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Chloromethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC cis-1,2-Dichloroethene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC cis-1,3-Dichloropropene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Dibromochloromethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Dibromochloropropane ND 4400 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Dibromomethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Dichlorodifluoromethane ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Ethylbenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Hexachlorobutadiene ND 1300 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Methyl tert Butyl Ether ND 4400 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Methylene Chloride ND 2600 ug/kg dry EPA 8260B 03/08/21 22:02 EEC n-Butylbenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC n-Propylbenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Naphthalene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC sec-Butyl benzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Styrene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC tert-Butylbenzene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Tetrachloroethene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Toluene 980 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC trans-1,2-Dichloroethene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC trans-1,3-Dichloropropene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Trichloroethene ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Trichlorofluoromethane ND 4400 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Vinyl Chloride ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Xylenes(m+p) ND 880 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Xylenes(ortho) ND 440 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Xylenes(total) ND 880 ug/kg dry EPA 8260B 03/08/21 22:02 EEC Surrogate:1,2-Dichloroethane-d4 98% 74-126 EPA 8260B 03/13/21 01:05 JES Surrogate:1,2-Dichloroethane-d4 99% 74-126 EPA 8260B 03/08/21 22:02 EEC mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 © © = BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 8 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C Laboratory Reference Number C1 C0753-03 Sample Description Matrix Sampled Date/Time Received Date/Time AG76345-WW-10 Centrifuge Cake Sludqe 03/04/21 00:00 03/04/21 10:35 Analyte(s) Result RDL Units Method Analysis Date Analyst Flag Volatile Organic Compounds by EPA 8260E Surrogate:4-Bromofluorobenzene 86% 76-127 EPA 8260B 03/13/21 01:05 JES Surrogate:4-eromofluorobenzene 87% 76-127 EPA 8260B 03/08/21 22:02 EEC Surrogate:Toluene-d8 96% 80-120 EPA 8260B 03/08/21 22:02 EEC Surrogate:Toluene-d8 100% 80-120 EPA 8260B 03/13/21 01:05 JES Surrogate:1,2-Dichlorobenzene-d4 108% 0-200 EPA 8260B 03/13/21 01:05 JES Surrogate:1,2-Dichlorobenzene-d4 128% 0-200 EPA 8260B 03/08/21 22:02 EEC mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 000 BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 9 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C Notes and Definitions NLOhND LCS recovery was above method control limit for this analyte. Analyte not detected,therefore data not impacted. NRPDb This analyte's RPD value for the LCS/LCSD did not meet laboratory acceptance criteria. The data was accepted based on valid RPD of the remaining analyte(s). ND: Analyte NOT DETECTED at or above the Method Detection Limit (if MDL is reported), otherwise at or above the Reportable Detection Limit(RDL) NR: Not Reported RDL: Reportable Detection Limit MDL: Method Detection Limit */°I : NELAP does not offer accreditation for this analyte/method/matrix combination Approval Enclosed are the analytical results for the submitted sample(s). Babcock Laboratories certify the data presented as part of this report meet the minimum quality standards in the referenced analytical methods.Any exceptions have been noted. Shelia Marie McGlown cc: e-Short_No Alias.rpt This report applies only to the sample(s)analyzed.As a mutual protection to clients,the public,and Babcock Laboratories,Inc.,this report is submitted and accepted for the exclusive use of the Client to whom it is addressed.Interpretation and use of the information contained within this report are the sole responsibility of the Client.Babcock Laboratories,Inc.is not responsible for any misinformation or consequences that may result from misinterpretation or improper use of this report.This report is not to be modified or abbreviated in any way. Additionally,this report is not to be used,in whole or in part,in any advertising or publicity matter without written authorization from Babcock Laboratories,Inc.The liability of Babcock Laboratories,Inc.is limited to the actual cost of the requested analyses,unless otherwise agreed upon in writing.There is no other warranty expressed or implied. mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No.10119 000 BABCOCK Laboratories, Inc. The Standard of Excellence for Over 100 Years Client Name: South Tahoe Public Utility District Analytical Report: Page 10 of 10 Contact: Dan Arce Project Name: WWTP Analysis-2021 Address: 1275 Meadow Crest Drive South Lake Tahoe, CA 96150 Project Number: EPA Priority Pollutants Report Date: 18-Mar-2021 Work Order Number: C1C0753 Received on Ice(Y/N): Yes Temp: 7 °C SOUTH TAHOE PUBLIC UTILITY DISTRICT CHAIN OF CUSTODY South Tahoe Public Utility District LabSentto: 1275 Meadow Crest Drive < Tit r•fir. > Turnaround Time South Lake Tahoe,CA 96150 't'F Phone:(530)-543-6231 e, Samplern Standard FAX: 530-541.4296 24 Hr 49(ir e d» Prior,'N RUlYdl u m Ot r r.R PH' F6%33$ W-00 80w Grab Y 03,01214w Hof. W 13 A 3 T Groh 1J13 Hol WW V1 3 A6 GM5 W W-I OMMifuctS Cake 8hr 14°G �- Rc'd: 0310412021 10.35 0 �a. yample�lntaCt u. III]III] SNL Comments' Rellnqulshed by: Received by: ❑ ReportMTBE to 0.5 µg1L.Note any detection of MTBE z 0.2 µg�L ❑ Analyze Havel and Field Blanks only If VOCs detected ir.samples. slgnatu -� Signature FfdX n Use Calif State Write-4n farm W repert results of Potable Water Wells Pdnt _ U;n ��(�� Print edE% Company South Tahoe Public Litility oistnct Company % Please Return all STPUD Ice chests&Blue Ice. [)ate: 0-_31 Timed Cate ygyk?I Time 1a31- 4i w' �oeat, J *< <. Relinquished by: Received by, Received intact m 1 Ignature yeAiJ Signature /� Received cold Put PtAd Print I40 FMW n t6 FM Custody seals wig Company rtduCompany , , Correct container Y Date: LI _ TimeJp_;_��_ Date; q7J TmeJQi_,. r uav amswnanaicr�rcdr.aoc Page B of 1 mailing location P 951 653 3351 CA ELAP No.2698 P.O Box 432 6100 Quail Valley Court F 951 653 1662 EPA No.CA00102 Riverside,CA 92502-0432 Riverside,CA 92507-0704 www.babcocklabs.com NELAP No.OR4035 LACSD No. 10119 Alpine County Summary Report Temp pH EC DO Alk TDS SS Turb Chloride Sulfate ACMW-01AW 01/13/2021 Main Dam 11.3 6.86 63.4 26.7 59 1.49 2.00 ACMW-01BE 01/13/2021 Secondary Dam 10.6 6.68 104 50.4 77 1.36 0.846 ACMW-02N 01/26/2021 Access Gate 11.9 6.41 138 60.0 91 2.03 2.73 ACMW-02S 01/13/2021 Access Gate 13.9 6.31 103 47.4 72 1.52 1.51 ACMW-04W 01/13/2021 Gansberg 12.8 6.08 178 43.4 118 14.4 13.0 ACMW-06S 01/13/2021 Cello 12.4 7.11 610 218 376 59.2 19.9 ACMW-08N 02/10/2021 Diamond Valley Ranch 11.9 6.92 162 78.4 119 1.59 0.972 ACMW-09D 02/17/2021 Diamond Valley Ranch 12.2 6.81 85.3 31.5 67 1.87 2.20 ACMW-10 02/17/2021 Diamond Valley Ranch 11.9 6.70 170 69.7 131 6.19 5.10 ACMW-11 02/17/2021 Diamond Valley Ranch 9.8 6.53 90.4 32.9 71 2.52 4.16 ACMW-12 02/10/2021 Diamond Valley Ranch 11.9 6.68 110 46.5 95 2.03 2.26 ACMW-13 02/10/2021 Diamond Valley Ranch 9.8 6.23 127 50.9 116 2.70 2.74 ACMW-14 02/17/2021 Diamond Valley Ranch 10.1 6.28 73.5 32.3 70 1.04 1.40 ACMW-15 03/24/2021 Diamond Valley Ranch 12.1 5.98 68.0 29.0 46 1.18 1.49 ACMW-16 03/24/2021 Diamond Valley Ranch 11.1 6.31 142 63.3 94 1.81 1.70 ACMW-17 03/24/2021 Diamond Valley Ranch 9.9 6.41 84.9 31.5 59 2.86 2.40 ACMW-18 03/24/2021 Diamond Valley Ranch 11.0 6.48 87.0 34.1 61 2.73 1.68 ACMW-19 03/24/2021 Diamond Valley Ranch 10.9 6.67 206 105 128 2.49 0.701 ACMW-20 02/10/2021 Diamond Valley Rd- 11.3 6.24 90.2 34.5 71 2.25 2.24 Paynesville ACMW-21 02/17/2021 River Ranch Rd 9.3 6.38 95.6 35.8 74 3.80 3.57 ACMW-22 02/17/2021 Fredericksburg Ln 10.6 6.23 101 42.2 80 1.38 3.16 ACMW-23 02/24/2021 Scott Brooke's Ranch by 13.9 7.27 380 171 269 4.54 20.0 Irrigation Ditch ACMW-24 03/29/2021 Scott Brooke's Ranch by 14.4 6.69 536 183 364 41.8 38.7 Irrigation Ditch ACMW-25 02/24/2021 Access road between 10.4 6.39 149 44.6 109 8.16 4.89 Neddenriep&Brooke ranches ACMW-26 02/24/2021 Access road between 10.7 6.47 221 59.6 128 21.4 6.66 Neddenriep&Brooke ranches CONTROL 01/09/2021 East side near Post Office 9.7 7.04 260 23.5 GW-05 01/26/2021 Neddenriep 8.6 6.39 295 60.6 172 30.5 10.1 GW-08 01/26/2021 Arent Ranch house 8.1 6.07 363 47.8 217 43.8 11.8 GW-11 01/26/2021 Diamond Valley School 9.8 7.29 147 70.3 104 1.13 0.851 GW-17 01/26/2021 Diamond Valley Ranch House 9.9 6.50 154 57.5 93 1.82 1.02 Well HPR 01/04/2021 Harvey Place Reservoir 3.8 7.83 638 9.96 176 264 28.4 7.6 58.3 22.9 02/01/2021 Harvey Place Reservoir 3.3 7.74 600 9.87 180 255 2.9 3.2 57.0 21.6 03/03/2021 Harvey Place Reservoir 5.7 8.33 614 8.11 174 254 6.08 4.2 53.2 20.7 HVC-1 02/24/2021 HVC @ Pioneer Trail 1.5 7.03 83.4 1.41 03/25/2021 HVC @ Pioneer Trail 2.4 7.37 80.8 1.27 HVC-2 03/25/2021 HVC 250'Upstream Pond#2 3.0 6.29 51.8 1.57 HVC-3 03/25/2021 HVC 25'Downstream of 2.1 5.99 74.4 6.30 Meadow Crest MW01_5 01/09/2021 SW comer of ERB 9.4 7.24 169 1.86 MW02.50 01/09/2021 South side of ERB Pond 8.8 6.59 269 27.8 Results respoded as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as NC=Not counted Page 1 of 8 Alpine County Summary Report Temp pH EC DO Alk TDS SS Turb Chloride Sulfate MW03-50 01/09/2021 Southwest comer of ERB Pond 7.9 6.71 325 49.5 MW04-50 01/09/2021 Hank Monk side of ERB 7.8 6.29 89.9 5.04 MW07-50 03/25/2021 North side of ERB Pond 7.4 7.48 176 10.1 MW08-25 01/09/2021 South of Pond 1 11.5 6.85 909 28.5 MW11 01/09/2021 North of Biosolids building 8.4 6.13 345 73.3 MW12 01/09/2021 South of Biosolids Building 9.7 6.47 263 9.71 MW13 01/09/2021 South of Pond 2 along HVC 7.0 7.41 566 23.6 SW-01 01/04/2021 Carson River Woodfords 3.0 7.35 78.4 11.10 37.5 60 0.59 0.69 2.47 2.05 02/01/2021 Carson River Woodfords 1.7 7.59 79.8 11.34 37.2 54 3.51 1.0 2.00 2.06 03/03/2021 Carson River Woodfords 1.3 7.38 87.0 7.65 36.0 61 0.45 0.50 3.11 2.72 SW-02 03/03/2021 Indian Creek Upper 1.8 7.47 74.0 7.37 35.1 59 0.14 1.6 1.85 0.829 SW-03 03/03/2021 Indian Creek Mid 1.9 7.71 87.0 7.84 37.0 165 14.0 4.4 3.00 2.73 SW-04 03/03/2021 Indian Creek Lower 2.3 7.64 92.0 7.40 41.0 70 10.6 5.0 2.98 2.70 SW-05 01/04/2021 Carson River Paynesville 5.2 8.33 96.8 11.48 43.2 70 0.55 0.55 2.45 3.01 02/01/2021 Carson River Paynesville 1.9 7.74 97.6 12.03 43.6 63 0.85 0.73 2.66 3.12 03/03/2021 Carson River Paynesville 3.6 7.89 101 7.58 42.4 59 0.95 0.80 3.85 3.60 03/29/2021 Carson River Paynesville 12.9 7.74 81.2 8.67 SW-06 01/04/2021 Carson River Stateline 6.2 8.37 103 11.62 45.4 71 1.25 0.57 3.00 3.43 02/01/2021 Carson River Stateline 4.3 7.57 93.6 10.85 45.2 70 0.33 0.44 3.12 3.57 03/03/2021 Carson River Stateline 4.1 8.08 107 7.69 44.8 63 2.58 1.0 4.29 4.05 03/29/2021 Carson River Stateline 13.0 7.91 92.1 9.30 SW-08 03/03/2021 Irrigation Ditch 3.0 7.60 127 7.51 54.9 102 0.73 0.34 2.16 4.51 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as NC=Not counted Page 2 of 8 Alpine County Summary Report Total P Total P PO4-P NH3-N Total N NO2-N NO3-N TKN Dissolved ACMW-01AW 01/13/2021 Main Dam 0.022 0.027 <0.020 <0.10 <0.010 0.023 <0.10 ACMW-01BE 01/13/2021 Secondary Dam 0.031 0.035 <0.020 0.12 <0.010 0.122 <0.10 ACMW-02N 01/26/2021 Access Gate 0.024 0.026 <0.020 0.42 <0.010 0.419 <0.10 ACMW-02S 01/13/2021 Access Gate 0.016 0.018 <0.020 <0.10 <0.010 <0.010 <0.10 ACMW-04W 01/13/2021 Gansberg 0.016 <0.020 <0.020 1.4 <0.020 1.21 0.17 ACMW-06S 01/13/2021 Cello 0.059 0.057 <0.020 0.21 <0.020 <0.020 0.21 ACMW-08N 02/10/2021 Diamond Valley Ranch 0.038 0.054 <0.020 0.64 <0.010 0.638 <0.10 ACMW-09D 02/17/2021 Diamond Valley Ranch 0.059 0.113 <0.020 0.95 <0.020 0.947 <0.10 ACMW-10 02/17/2021 Diamond Valley Ranch 0.038 0.050 <0.020 1.3 <0.020 1.29 <0.10 ACMW-11 02/17/2021 Diamond Valley Ranch 0.025 0.025 <0.020 0.93 <0.020 0.750 0.18 ACMW-12 02/10/2021 Diamond Valley Ranch 0.028 0.038 <0.020 0.60 <0.010 0.601 <0.10 ACMW-13 02/10/2021 Diamond Valley Ranch 0.018 0.040 <0.020 1.6 <0.030 1.57 <0.10 ACMW-14 02/17/2021 Diamond Valley Ranch 0.021 0.016 <0.020 0.35 <0.010 0.107 0.24 ACMW-15 03/24/2021 Diamond Valley Ranch 0.027 0.020 <0.020 0.442 <0.010 0.288 0.154 ACMW-16 03/24/2021 Diamond Valley Ranch 0.050 0.052 <0.020 0.812 <0.010 0.603 0.209 ACMW-17 03/24/2021 Diamond Valley Ranch 0.027 0.022 <0.020 0.798 <0.010 0.631 0.167 ACMW-18 03/24/2021 Diamond Valley Ranch 0.030 NV <0.020 0.563 <0.010 0.446 0.117 ACMW-19 03/24/2021 Diamond Valley Ranch 0.086 0.090 0.037 0.267 <0.010 <0.010 0.267 ACMW-20 02/10/2021 Diamond Valley Rd- 0.056 0.063 <0.020 0.62 <0.010 0.625 <0.10 Paynesville ACMW-21 02/17/2021 River Ranch Rd 0.045 0.054 <0.020 0.34 <0.020 0.342 <0.10 ACMW-22 02/17/2021 Fredericksburg Ln 0.019 0.023 <0.020 0.60 <0.020 0.495 0.11 ACMW-23 02/24/2021 Scott Brooke's Ranch by 0.042 0.056 <0.020 1.1 <0.020 1.09 <0.10 Irrigation Ditch ACMW-24 03/29/2021 Scott Brooke's Ranch by 0.079 0.068 <0.020 2.45 <0.030 2.26 0.19 Irrigation Ditch ACMW-25 02/24/2021 Access road between 0.045 0.057 <0.020 2.4 <0.030 2.42 <0.10 Neddenriep&Brooke ranches ACMW-26 02/24/2021 Access road between 0.074 0.079 <0.020 5.0 <0.010 2.28 2.7 Neddenriep&Brooke ranches CONTROL 01/09/2021 East side near Post Office <0.010 4.95 GW-05 01/26/2021 Neddenriep 0.038 0.034 <0.020 4.7 <0.010 4.72 <0.10 GW-08 01/26/2021 Arent Ranch house 0.033 0.027 <0.020 10 <0.010 10.3 <0.10 GW-11 01/26/2021 Diamond Valley School 0.053 0.053 <0.020 0.81 <0.010 0.522 0.29 GW-17 01/26/2021 Diamond Valley Ranch House 0.028 0.034 <0.020 1.0 <0.020 1.02 <0.10 Well HPR 01/04/2021 Harvey Place Reservoir 2.96 2.76 25.2 23 0.420 1.00 22 02/01/2021 Harvey Place Reservoir 2.70 2.96 26.0 25 0.351 0.858 24 03/03/2021 Harvey Place Reservoir 2.77 2.78 23.9 25 0.234 0.976 24 HVC-1 02/24/2021 HVC @ Pioneer Trail <0.020 0.32 <0.010 0.194 0.13 03/25/2021 HVC @ Pioneer Trail <0.020 0.359 <0.010 0.149 0.210 HVC-2 03/25/2021 HVC 250'Upstream Pond#2 <0.020 0.404 <0.010 0.013 0.391 HVC-3 03/25/2021 HVC 25'Downstream of <0.020 0.350 <0.010 <0.010 0.350 Meadow Crest MW015 01/09/2021 SW comer of ERB <0.010 0.350 MW02.50 01/09/2021 South side of ERB Pond <0.010 1.97 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100ml- Temp as 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 MW03-50 01/09/2021 Southwest comer of ERB Pond <0.020 0.735 MW04-50 01/09/2021 Hank Monk side of ERB <0.010 0.142 MW07-50 03/25/2021 North side of ERB Pond <0.010 0.369 MW08-25 01/09/2021 South of Pond 1 <0.010 0.025 MW11 01/09/2021 North of Biosolids building <0.010 0.098 MW12 01/09/2021 South of Biosolids Building <0.010 0.593 MW13 01/09/2021 South of Pond 2 along HVC <0.010 1.49 SW-01 01/04/2021 Carson River Woodfords 0.013 0.010 <0.020 <0.10 <0.010 <0.010 <0.10 02/01/2021 Carson River Woodfords 0.013 <0.010 <0.020 <0.10 <0.010 <0.010 <0.10 03/03/2021 Carson River Woodfords 0.013 <0.010 <0.020 0.10 <0.010 <0.010 0.10 SW-02 03/03/2021 Indian Creek Upper 0.013 0.010 <0.020 0.17 <0.010 <0.010 0.17 SW-03 03/03/2021 Indian Creek Mid 0.036 <0.010 <0.020 0.14 <0.010 <0.010 0.14 SW-04 03/03/2021 Indian Creek Lower 0.035 <0.010 <0.020 <0.10 <0.010 <0.010 <0.10 SW-05 01/04/2021 Carson River Paynesville 0.013 <0.010 <0.020 <0.10 <0.010 <0.010 <0.10 02/01/2021 Carson River Paynesville 0.010 <0.010 <0.020 0.26 <0.010 0.020 0.24 03/03/2021 Carson River Paynesville <0.010 <0.020 0.16 <0.010 0.015 0.14 03/29/2021 Carson River Paynesville 0.038 SW-06 01/04/2021 Carson River Stateline 0.012 <0.010 <0.020 <0.10 <0.010 0.079 <0.10 02/01/2021 Carson River Stateline <0.010 <0.010 <0.020 0.26 <0.010 0.106 0.15 03/03/2021 Carson River Stateline <0.010 <0.020 <0.10 <0.010 0.074 <0.10 03/29/2021 Carson River Stateline 0.028 SW-08 03/03/2021 Irrigation Ditch 0.016 <0.010 <0.020 0.23 <0.010 <0.010 0.23 Results resported as mg/L except EC as uS/cm Turbidity as NTU Corrfoms as MPN/100ml- Temp as NC=Not counted Page 4 of 8 Alpine County Summary Report BOD Ca Mg Na K SAR %Na HPR 01/04/2021 Harvey Place Reservoir 5.13 20.5 4.93 54.0 13.5 2.78 57.0 02/01/2021 Harvey Place Reservoir 3.88 19.5 4.68 51.8 13.4 2.73 57.0 03/03/2021 Harvey Place Reservoir 7.87 19.3 4.74 52.0 13.2 2.75 57.2 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as NC=Not counted Page 5 of 8 Alpine County Summary Report Total E.Coli Coliform Chromo Chromo ACMW-01AW 01/13/2021 Main Dam <1 <1 ACMW-01BE 01/13/2021 Secondary Dam <1 <1 ACMW-02N 01/26/2021 Access Gate <1 <1 ACMW-02S 01/13/2021 Access Gate <1 <1 ACMW-04W 01/13/2021 Gansberg 11.0 <1 ACMW-06S 01/13/2021 Celio <1 <1 ACMW-08N 02/10/2021 Diamond Valley Ranch <1 <1 ACMW-09D 02/17/2021 Diamond Valley Ranch <1 <1 ACMW-10 02/17/2021 Diamond Valley Ranch <1 <1 ACMW-11 02/17/2021 Diamond Valley Ranch <1 <1 ACMW-12 02/10/2021 Diamond Valley Ranch <1 <1 ACMW-13 02/10/2021 Diamond Valley Ranch <1 <1 ACMW-14 02/17/2021 Diamond Valley Ranch 2.0 <1 ACMW-15 03/24/2021 Diamond Valley Ranch <1 <1 ACMW-16 03/24/2021 Diamond Valley Ranch 1.0 <1 ACMW-17 03/24/2021 Diamond Valley Ranch <1 <1 ACMW-18 03/24/2021 Diamond Valley Ranch <1 <1 ACMW-19 03/24/2021 Diamond Valley Ranch <1 <1 ACMW-20 02/10/2021 Diamond Valley Rd- <1 <1 Paynesville ACMW-21 02/17/2021 River Ranch Rd <1 <1 ACMW-22 02/17/2021 Fredericksburg Ln <1 <1 ACMW-23 02/24/2021 Scott Brooke's Ranch by <1 <1 Irrigation Ditch ACMW-24 03/29/2021 Scott Brooke's Ranch by <1 <1 Irrigation Ditch ACMW-25 02/24/2021 Access road between <1 <1 Neddenriep&Brooke ranches ACMW-26 02/24/2021 Access road between <1 <1 Neddenriep&Brooke ranches GW-05 01/26/2021 Neddenriep <1 <1 GW-08 01/26/2021 Arent Ranch house 31.3 <1 GW-11 01/26/2021 Diamond Valley School <1 <1 GW-17 01/26/2021 Diamond Valley Ranch House <1 <1 Well HPR 01/04/2021 Harvey Place Reservoir 228 3.1 02/01/2021 Harvey Place Reservoir 34.1 <1 03/03/2021 Harvey Place Reservoir 6.3 <1 SW-01 01/04/2021 Carson River Woodfords 47.2 <1 02/01/2021 Carson River Woodfords 70.6 3.1 03/03/2021 Carson River Woodfords 17.5 <1 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100mL Temp as NC=Not counted Page 6 of 8 Alpine County Summary Report Total E.Coli Coliform Chromo Chromo SW-02 03/03/2021 Indian Creek Upper 41.4 <1 SW-03 03/03/2021 Indian Creek Mid 43.5 15.6 SW-04 03/03/2021 Indian Creek Lower 57.3 1.0 SW-05 01/04/2021 Carson River Paynesville 93.3 7.4 02/01/2021 Carson River Paynesville 77.1 2.0 03/03/2021 Carson River Paynesville 108 3.1 SW-06 01/04/2021 Carson River Stateline 172 5.2 02/01/2021 Carson River Stateline 102 2.0 03/03/2021 Carson River Stateline 147 6.3 SW-08 03/03/2021 Irrigation Ditch 228 3.0 Results resported as mg/L except EC as uS/cm Turbidity as NTU Colifoms as MPN/100ml- Temp as NC=Not counted Page 7 of 8 Alpine County Summary Report Colonies Colonies Filaments Filaments Filaments Filament Single # #Cells #Multi- #Cells #Single- Length Cells Celled Celled HPR 01/04/2021 Harvey Place Reservoir 0 0 0 0 0 0 0 02/01/2021 Harvey Place Reservoir 0 0 0 0 0 0 0 03/03/2021 Harvey Place Reservoir 0 0 0 0 0 0 0 Results resported as mg/L except EC as uS/cm Turbidity as NTU Corrfoms as MPN/100mL Temp as NC=Not counted Page 8 of 8 Page 1 of 1 Monitoring Wells Groundwater Elevation Sample Depth Ref GW Site Location Date Hr ID# to GW MSL MSL ACMW-01AW Main Dam 01/13/2021 12:42 AG75673 7.51 5493.13 5,485.62 ACMW-01BE Secondary Dam 01/13/2021 12:26 AG75674 11.80 5503.55 5,491.75 ACMW-02N Access Gate 01/13/2021 11:53 AG75675 0.00 5469.70 5,469.70 ACMW-02N Access Gate 01/26/2021 12:58 AG75849 9.12 5469.70 5,460.58 ACMW-02S Access Gate 01/13/2021 11:42 AG75676 10.73 5471.60 5,460.87 ACMW-04W Gansberg 01/13/2021 10:44 AG75677 22.04 4919.89 4,897.85 ACMW-06S Celio 01/13/2021 11:17 AG75678 15.38 5223.50 5,208.12 ACMW-08N Diamond Valley Ranch 02/10/2021 10:44 AG76042 4.58 5464.45 5,459.87 ACMW-09D Diamond Valley Ranch 02/17/2021 13:12 AG76162 35.09 5510.56 5,475.47 ACMW-10 Diamond Valley Ranch 02/17/2021 13:37 AG76163 29.82 5534.19 5,504.37 ACMW-11 Diamond Valley Ranch 02/17/2021 12:39 AG76164 19.63 5503.01 5,483.38 ACMW-12 Diamond Valley Ranch 02/10/2021 11:20 AG76043 32.21 5525.04 5,492.83 ACMW-13 Diamond Valley Ranch 02/10/2021 11:49 AG76044 11.00 5554.55 5,543.55 ACMW-14 Diamond Valley Ranch 02/17/2021 11:52 AG76165 15.11 5547.20 5,532.09 ACMW-15 Diamond Valley Ranch 03/24/2021 10:16 AG76642 19.61 5500.60 5,480.99 ACMW-16 Diamond Valley Ranch 03/24/2021 12:16 AG76643 12.61 5484.53 5,471.92 ACMW-17 Diamond Valley Ranch 03/24/2021 12:56 AG76644 16.03 5504.92 5,488.89 ACMW-18 Diamond Valley Ranch 03/24/2021 11:25 AG76645 8.71 5470.56 5,461.85 ACMW-19 Diamond Valley Ranch 03/24/2021 10:43 AG76646 6.98 5417.25 5,410.27 ACMW-20 Diamond Valley Rd-Paynesville 02/10/2021 10:10 AG76045 16.00 5090.30 5,074.30 ACMW-21 River Ranch Rd 02/17/2021 11:12 AG76160 24.01 5011.33 4,987.32 ACMW-22 Fredericksburg Ln 02/17/2021 10:46 AG76161 33.80 5019.28 4,985.48 ACMW-23 Scott Brooke's Ranch by Irrigation 02/24/2021 10:12 AG76253 19.02 4978.35 4,959.33 Ditch ACMW-24 Scott Brooke's Ranch by Irrigation 03/29/2021 14:55 AG76724 25.00 4953.25 4,928.25 Ditch ACMW-25 Access road between Neddenriep& 02/24/2021 11:29 AG76254 9.45 4942.24 4,932.79 Brooke ranches ACMW-26 Access road between Neddenriep& 02/24/2021 10:55 AG76255 16.71 4895.60 4,878.89 Brooke ranches CONTROL East side near Post Office 01/09/2021 10:13 AG75606 65.13 6345.20 6,280.07 MW01_5 SW corner of ERB 01/09/2021 10:35 AG75607 60.00 6328.00 6,268.00 MW02-50 South side of ERB Pond 01/09/2021 11:16 AG75608 28.05 6314.60 6,286.55 MW03-50 Southwest corner of ERB Pond 01/09/2021 11:40 AG75609 42.20 6310.10 6,267.90 MW04-50 Hank Monk side of ERB 01/09/2021 12:03 AG75610 35.33 6304.40 6,269.07 MW07-50 North side of ERB Pond 03/25/2021 14:47 AG76674 24.74 6302.20 6,277.46 MW08-25 South of Pond 1 01/09/2021 14:02 AG75611 13.06 6258.30 6,245.24 MW11 North of Biosolids building 01/09/2021 11:50 AG75612 30.52 6296.00 6,265.48 MW12 South of Biosolids Building 01/09/2021 12:12 AG75613 26.20 6288.80 6,262.60 MW13 South of Pond 2 along HVC 01/09/2021 13:55 AG75614 8.04 6263.40 6,255.36 Alpine County Soils pH EC %Sat TKN NO3-N Total P Exch P SO4 CI S2A Celio Ranch 01/19/2021 7.99 7.21 72.1 1460 5.32 919 15.3 180 2480 SM Bently Ranch 01/19/2021 6.13 0.370 38.8 1310 0.444 811 9.95 13 475 S4A Gansberg Ranch 01/19/2021 7.28 1.41 39.1 2140 7.66 374 42.7 19 600 S5A Gansberg Ranch 01/19/2021 5.92 0.540 31.2 1010 5.98 312 5.03 5 575 S6A Neddenriep Ranch 01/19/2021 7.10 0.588 44.1 2500 7.55 560 18.1 11 450 SM Bruns Ranch 01/19/2021 5.89 0.176 39.8 1570 2.20 674 6.58 5 500 CEC Cu Mo K Ca Mg Na SAR %Na S2A Celio Ranch 01/19/2021 39.7 21.1 0.49 1490 406 284 1200 11.2 13.0 SM Bently Ranch 01/19/2021 21.4 8.4 0.76 690 35.7 6.23 26.1 1.06 <1 S4A Gansberg Ranch 01/19/2021 19.5 15.4 0.45 8160 125 19.3 29.9 0.660 <1 S5A Gansberg Ranch 01/19/2021 13.9 14.0 0.62 3590 80.4 7.42 37.2 1.06 <1 S6A Neddenriep Ranch 01/19/2021 19.1 11.2 0.30 3220 44.6 9.59 46.7 1.65 1.12 SM Bruns Ranch 01/19/2021 14.6 12.6 0.53 2010 49.1 5.03 10.9 0.400 <1 Page 1 of 1 Sample Comments Site Date Time Comments HVC-1 01/26/2021 10:37 Frozen HVC-2 01/26/2021 10:54 Dry HVC-3 01/26/2021 10:59 Dry HVC-5 01/26/2021 11:04 Dry SW-05 03/29/2021 15:20 Re-sampled to run Total Phosphorous test. SW-06 03/29/2021 15:36 Re-sampled to run Total Phosphorous test. 1 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: i It 21 EMERGENCY POND MW FIELD MONITORING RECORD Samplers: Purpose: Preservative Std Check Depth to Well Water Calc Actual Well Casing Depth tc. Column Water tc. Water Temp EC Bottom Diameter GIN Height Purge Purged o — O .Site 1D# Time C pH uS/cm ft inch ft ft Gallons Gallons r o pH EC COMMENTS _- Iol i �1-7 I,C0 - 26C &L-13 15,717 2.�7 CONTROL 80.90 2 MW1 .5 i'o3S '`� 7,14 1611 65.80 2 be,t;t S,SC MW02-50 �ilb Z1 b.s� •� c- `� 2�C. 1�. 1 S b 50.90 2AS � ` MW03-50 ? ' il�+c -71 e 1f 7 50.80 2 2It jai'; 1203 -7.g b:ZCl `�� 51.00 2 1 .2 7 z l t ,MW04-50 35-33 Is, MW07-50 52.60 2 MW08-25 ,f �t r �3,�-� 7.s� Liz 20.60 2 1MW11 41.0 2 MEW 12 31.50 2 I� MW13 14.40 2 II -1 qr, F 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 pH Std Check uses a 7.00 buffer.pH meter must be re- 11 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 11 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: 11 Water column height=50'-35'=15' File:D:\Lab\Forms\Field Sheets\Field ERB doc 10/14/2015 Flushing Record Date: CI rI('( • 2-1 Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed ±5% ±5% ±5% 1 Sampler Comments (�Ui��I�G' IGL�� Iri' Z, � �1,5 l,f l '�•> ;vl `�fiarr � C� lGi2 IV�WC i•S IG SC C, y CLc$27 -7,24 ib� �CV1 Z1C SfiG+�"1C~ IG��1 illy 2-1 r �t S.• 2VI Mw D I l�5 !f S '7,'L 1�;(9, 3 2 1140 12 Z•2 7,cl lv,'11 3-<S n1w yj i« lr 7 r 4 r✓,4 W v �3s2 It: 1 ,S �1.7 "7' 2, & 171(f Note Temp,pH.c»must stau,,M±5 for successive measurements taken in rrN9rvdls_5 minutes -,LabtForms\Peld SheetsWonitor Walt Rushmo Record doc SOUTH TAHOE PUBLIC UTILITY DISTRICT EMERGENCY POND MW FIELD MONITORING RECORD Date: Samplers: Tr��cttckl - - J j i1 = /, I Pur ose Depth to Well Water Cal Actual Preservative Std Check — Well Casing Depth to Column Water to Water Site I�# Time Temp p H EC Bottom Diameter GIN Height Purge Purged o o 51cm ft inch ft ft Gallons Gallons 7cn i z O H EC COMMENTS CONTROL so-so 2 II MW1.5 65.80 2 MW02-5 - — 50.90 2 ,..IW03-50 50.80 2 MW04-50 — 51.00 2 MW07-50, 52.60 2 MW08-25 7,. 20.60 2 j MW11 ilsc .4 e-O3 As 41.0 2 =3.11 1.to MW12 �` J 1212 �(- 1 e.4l L63 31 50 2 f J W1.3 i3�S `I.0 -7,q1 Sb� — 14.40 2 W ti �.�6 i.l 2�b Trip Blank -- Iroundwater samples shall be collected only after a I well volumes Gallons to flush=1 x 7.48 x 3-14 x 0-083' x water column height ave been flushed and Temperature,pH and EC measurements Gallons to flush=0.17 x water column height(ft) ` ave stabilized to approximately±5%for each successive Water column height=depth of well -water level pH Std Check uses a 7.ce buffer pH meter must be re standardized if result exce ieasurement taken in intervals>5 minutes tar 50'well whose water level is 35 feet from ground level- buffer ?.00±0 OS EC Std Char.k uses a 200 pS/cm standard Water column height=50'-35'=15' D Q a0+onms\Fie.id Sheets\F1eld ERH duc Cate lv`1 L1 Flushing Record — — — — EC Temp Minutes Gallons oC PH PS Sam Ier Comments Well Time Flushed Flushed ±5% ±5% ±5�° 4 WC I l 1 Norg T?'10 .1 r1 r SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: 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 - a Temp EC Bottom Diameter GW Height Purge Purged U � Z O Site ID# Time C H PS/cm ft inch ft ft Gallons Gallons cn i z H EC — COMMENTS CONTROL 80.90 2 gMW1 .5 65.80 2 I MW02-50 50.90 2 MW03-50 50.80 2 MW04-50 51.00 2 IiMW07-50 �46i 14 1,18 11l 52.60 2 MW08-25 1 1 20.601 2 MW11 41.0 2 �MW12 . 31.501 2 My l 3 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 pH Std Check uses a 7.00 buffer,pH meter must be re- i 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 m.easuremenl taken in intervals?5 minutes. for 50'well whose water level is 35 feet from ground level: Water column height=50'-35'=15' de DAI abFonnslField Sheetffield F_RB.duc Flushing Record Date: rc�1,�m Temp EC Minutes Gallons °C pH NS Well Time Flushed Flushed ±5% ±5% t 5% Sampler Comments .-�35 1q3 3.5 &,.34, 19G' EEL U]t3 Tamp 'I^t JSt 513twiia±j Wa r:)-3UC333swe T33sJ'3;T13n�t' 3S3n i.,-Can133?5 Tin U,3i 7 ShaaU6Nz)nit3r_bV31!_�!�shin3_R3�a-.7 jx SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: M- 3- k !� ACMW FIELD MONITORING RECORD Samplers: i�t nct` Mc✓5 Pur ose: L Preservative Std Check Depth to Well Actual Depth Well CasingWaterto GW Temp EC Bottom DiameterPurged o H2SO4 z o COMMENTS Site ID# Time ft °C ii Slcm ft inchGallons cn oH= x pH EC ACMW-01AW ►"12- 1Z it. ix b6 0A 22.6 2 1j.C'C I IACMW-01 BE �2zb i� �� b,6 U-�t itt 23.8 2 - �1 ►.e ACMW-02N 34.1 2 ACMW-02S �4Z « 0 `l 61 1U1 21.9 2 iiACMW-04W Mt L,UU - Q-S 29.0 2 ►b ACMW-06S 101 6,-- b 11.t -1.11 l0 29.9 2 4� Trip Blank 0`�cc 11v Is 21 emperature of Control " hen samples received at Lab 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±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' n 11 ahlGnrm°\CiclV 'I/99r9MF Ch..wrlolrl arnmN A— Flushing Record Date: dl-0 21 Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed t 5% t 6% t 5% Sampler Comments Mw ��t �) iUl t- I, I'LA -A bvt Io . AcMW-C6 S 1102 2 1 6.q 3 591111 �►rt� Ito IIGI 2 12,5 7-82 S2o 1112 1 2 12-b -7,2-+ �;-7$ 12.4 7, 11 10 11 ut b' CiNV� 4`"(1� 11'f$ f,0 12.1 b. ¢8 134 Sw 11`t 11S3 _1 2,4 13,0 r�q I3 x-1-n.sv tCi(. IlN61i jIj/lS'Zj v P�tmw - o113t 1221 2, 1,'3 (0,11 b,73 loll- k—G CcD l21q 1211, 7 4 ,o io,b to.b8 M III-- �I 2.0 i„4,2 .1.0 IH 10 Rfe 04 Note:Temp.pH,EC must stabilize i 5%for successive measurements lakes in Intarvals>5 minutes DALabWormsTield SheetskMonitor_Well_Flushing_Record doc SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: C 0 21, . 2 t ACMW FIELD MONITORING RECORD Samplers- Purpose: - — - - — — -- - -- _- — Ch II Depth to, Well Water Calc Actual Preservative Std eck Depth Well Casing Column Water to Water to GW Temp EC Bottom Diameter Height Purge Purged a H2S0,L z oa Site ID# Time ft °C pH PS/cm ft inch ft Gallons Gallons a H= _ pH EC COMMENTS_- — IIACMW-01AWF F22.6 2 i ACMW-01 BE 23.8 2 i ACMW-02N tLa 12, It.j t�% 34.1 2 ACMW-02S 21.9 2 ACMW-04W 29.0 2 ACMW-06S 29.9 2 Trip Blank II Temperature of Control hen samples received at Lab 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±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' n u nonna Flushing Record Date: VV II.24, •Z! Temp EC Minutes Gallons °C pH pS Well Time Flushed Flushed ±5'!0 }5% #5% Sampler Comments A ,&wt 124&- 125Y, �Z S.'L il,�i �•�I 13C Note-Tamp.pH.DC must stabilize i 5%for svepassiye measurements taken in intervals>5 minutes DALab\Forms\Field Sheets Wlonitor_Well_Flushing_Record doc Group 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: ACMW FIELD MONITORING RECORD Samplers: Purpose: _ _ 1i Preservative MpHEC Depthto Well Water Calc Actual Depth Well Casing Column Water to Water to GW Temp EC Bottom Diameter Height Purge Purged = H2So„ oa Site 1D# Time ft °C H S/cm ft Inch ft ft Gallons in H= _ COMMENTS ACMW-21 30.0 2 5.`�7 A} On River Ranch Rd,East side of Hwy 88 ACMW-22 �, , �c��r A_�.�� i�.u -z� l�` 59.5 2 ? y .�� On Fredericksburq Lane.near S7 ACMW-23 50.0 2 UostreamofSW-15 ACMW-24 50.0 2 Downstream of SW-15 ACMW-25 30.0 2 Behind Neddenriep's on Westside Lane; dirt rd between Hwv 88 and Carson River ACMW-26 30.0 2 On Westside Lane(ZD Statellne I Trip Blank Temperature of Control 1 `° I""`al when samples received I at Lab 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 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?5 minutes. Water column height=50'-35'= 15' DAI-ab\Forms\Field Sheets\Field ACMW-20_to_26 doc 9/20I2017 Flushing Record Date: Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed t 5% t 5% t 5% Sampler Comments ALhw z-z- 2 10.ci U•V - iOQ t'�G l�v >t�a►-t�';03� J 0-t-i Q.13 101 1112 �J 4�sz as-4 Novo Temp,pH,E-must stabllixe t 5 for supcessive measurements taken in intervals>5 minulea- DALab\Forms\Field Sheets\Monilor_Well_Flushing_Record doc Group 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: L' ' ` II `G —/ ACMW FIELD MONITORING RECORD Samplers: />c Purpose:__ Preservative Preser 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 H2SO4 z oa Site I D# Time ft °C H uS/cm ft Inch ft ft Gallons IpH= = TpHEC COMMENTS ACMW-2 30.0 2 n River Ranch Rd,East side of Hw 88 ACMW-22 59.5 2 10n Fredericksburg Lane,near S7 +'ACMW-23 L 5-3 f b i Z K02- �3 � 3`�b 50.0 2 3016 5"2-} 7. Upstream of SW-15 ACMW-24 �°��' 50.0 2 rhuccess 1h Le Downstream of SW-15 ACMW-25Z, � 6�5� fiZ`I oy.�cs IC��1 3� ��J zo.ss .5 �- Behind between on Westside Lane; 30.0 2 dirt rd between w 88 and Carson River ACMW-26 �� r 55 [L�S� ��, � D ��fi Zz � 30.0 2 ;�3, > 3 n Westside Lane a.Stateline Trip Blank 032,9 ii ITemperature of Control7�' when samples received ,� Z at Lab 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: ,,nave taken in intervals z 5 minutes. Water column height=50'-35'=15' D:ILab\Forms\Field Sheets\Field ACMW-20 to 26 doc 9/20/2017 Flushing Record Date: 02 Z: Z Temp EC Minutes Gallons °C pS Well Time Flushed Flushed t 5% :tpil. t 5% Sampler Comments PLKW- IUD-} Z f-'7.Cr 7.30 39Y avlZ ,.S 13-1 q 2� 5?a rLA 11 �-'i3 --1 IICMu 2 112-1 2 2 it7,3 b'42 150 5trv-t C 172- 0—'041 7 rro ti (.j g y Note:Tamp,pH,EC must slahilizei t 5 46 ior:succwuswo measurements taken in Intervals>5 minutes D:\Lab\Forms\Field Sheets\Monitor_Well_Flushing_Record doc Group 2 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: d3 - Z O 'za Z) ACMW FIELD MONITORING RECORD Samplers: Rc-I 1 IL 1� NI -Purpose: _ _ _ _ Preservative Std Check Depth to Well Water Calc Actual Depth Well Casing Column Water to Water 1D# to GW Temp EC Bottom Diameter Height Purge Purged o H,so„ o Site Time ft °C H us/cm ft Inch ft ft Gallons pH= iTpHEC COMMENTS ACMW-21 30.0 2 1Dn River Ranch Rd.East side of Hwy 88 ACMW-22 59.5 2 On Fredericksburg Lane,near S7 ACMW-2 3 50.0 2 Upstream of SW-15 ACMW-24 �, . ��S ?� (�� ' �- 50.0 2 `�' I � Dawns1eimm of SW-15 ACMW-25 '0.0 2 Behind Neddenriep's on Westside Lane; J in rd between Hwy 88 and Carson River ACMW-26 30.0 2 On Westside Lane P Slaleline Trip Blank I 'I Temperature of Control when samples received at Lab Gallons to flush=1 x 7.48 x 3.14 x U832 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'a 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: li L-, Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed t 5% t 5% t 5% Sampler Comments rN50 3 3 ti: 8 .33 529 O skl�tC� iy`f� Note:Temp,pH.EC must stabilize t 5%for succaas e.measurements taken in intervals>5 minutes. DALab%FormsTield SheetslMonitor_Well_Flushing_Record doc Group 3 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: r i- 2y,2 i ACMW FIELD MONITORING RECORD Samplers: PttrpgQ w C,it 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 E H,SO, o Site ID# Time ft °C H PS/cm ft Inch ft Gallons Gallons H= = O H EC COMMENTS ACMW-08N 70.1 2 iACMW-12 73.5 2 ACMW-13 20.0 2 ACMW-20 21.5 2 GW-11 vj; GW-17 rip Blank Ln�Measuremnni ture of Control ples received 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- . r samples shall be col[eeted nniv after1 well volumes Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EG Std Check rlt fished and'T emperature.PH,and EC measurements Water column height=depth of well-water level uses a 200 pS/cm standard lzed to approxima€ely f 5%for each successive For 50'well whose water level is 35 feet from ground level:nnl taken In intervals?5 minutes. Water column height=50'-35'= 15' li Ai,ih\Fnrm,J field hcot,\ iwld AGMN-Group 3 doc 000/2017 Group 3 , - SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: ACMW FIELD MONITORING RECORD Samplers: c{k Pur ase_ _ _ _ _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 HZSo„ o Site ID# Time ft °C H S/cm ft Inch ft Gallons Gallons u, H= ? H EC COMMENTS ACMW-08N L 70.1 2 i�� i 2 �' ✓ �.� CMW-12 ��'Lo �s.zl h �tit Ili 73.51 2 ?�.l�l �,,� � ✓ ✓ 'i.� !r CMW.13 IMA i1 UU I Vt lL t iLi 20.0 2 �.v� �.5 ✓ �� !A_�"t •^ P f ACMW-20 io to II .� -14 U1 21.5 2 i2 v v lb GW-11 IGW-17 LLL"Ivu 6 f -- 1 Trip Blank ntef y Temperature of Control °c Initial when samples received r;l �Ulr at Lab Minimum gallons to flush=1 x 7.48 x 3.14 x 0.083 x water column hei ht 9 9 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 Sheets\Field ACMW-Group_3.doc 9/20/2017 I-C, C4-rnIYtC V►�S F,� ►,3 ,It� ll�% ��t � �, s{o,� tC-P cqs� I°jG j2 i•Z i1 ,3 Iv.2� �G� 2• Acrnw i2 I�l� Z Z 1� b 1�,52 I c 5 sicArt- 2 AcMv� - ►� (14� 2. 2 �.� �.15 I'Jo S�a� 11g2 Group 4 SOUTH TAHOE PUBLIC UTILITY DISTRICT ACMW FIELD MONITORING RECORD Samplers: Date: '+E. , p ers. A ., Purpose: 1 Depth to Well Water Calc Actual Preservative Sid Check Depth Well Casing Column Water to Water Site �D# to GW Temp EC Bottom Diameter Height Purge Purged o a) H;SO, o ¢Time ft °C H S/cm ft Inch ft Gallons Gallons y pH= _ H EC COMMENTS ACMW-09D 45.1 2 ACMW-10 2,1.7c 38.5 2 ACM-11 33.5 2 CMW-14 30.0 2 GW-05 /1G�s�sZ t�z2 c.L 1,ji GW-08 k'lS-6sJ Trip Blank ki5�5-9 emperature of Control °� when samples received Lab hAindwater samples shall be collected only after>_ Minimum gallons to flush= 1 x 7.48 x 3.14 x 0.083 x water column height p y 1 well volumes Gallons to flush=0.17 x water column height(ft) PH Sid Check uses a 7.00 buffer-pH meter must be re- hav been flushed and Temperature,pH,and EC measurements Water column height=depth of well-water level e�abilized to approximately±5%for each successive for Water well whose water level is 35 feet from ground level: standardized if result exceeds 7-00±0.05.EC Sid Check easur�ent taken in intervals>_5 minutes. uses a 200 pS/cm standard Water column height=50'-35'=15' C:1abTormslField sheetslField ACMW-Group_4 doc Group 4 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: ACMW FIELD MONITORING RECORD Samplers- Purpose: ` '`` o 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 Hso„ z o 6te 1D# Time ft °C H VS/cm ft Inch ft Gallons Gallons H= = H EC COMMENTS ACMW-09D �3rZ �� t2 �.�� 45.1 2 CMW-10 _ z � 2, ;�,� �� h � �, 38.51 2 1 ACMW-11u7E� �� 1��. CT.� �,,_s ��'� i?�� 33.5 2 - u I ,�� r�CMW_j �,�� :7 I k I Q- I 4 LO �� 14 , 30.0 2 ' GW-05 !I GW-08 Trip Blank 41 Iu Temperature of Control when samples received fat 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 z 1 well volumes Gallons to flush=0.17 x water column height(ft) standardized if result exceeds 7.00±0.05.EC Std Check have been flushed and Temperature,pH,and EC measurements Water column height=depth of well-water level uses a 200 pS/cm standard have stabilized to approximately±5%for each successive for 50'well whose water level is 35 feet from ground level: measurement taken in intervals>_5 minutes. Water column height=50'-35'=15' D\Lab\Forms\Field Sheets\Field ACM-Group 4.doc ,r•,•,ron,r. Flushing Record Date: L17 1 Temp � EC Minutes Gallons °C pH PS Well Time Flushed Flushed ±5% ±5% ±5% Sampler Comments jy ll y� Z l ,l G+.Z(� 1`-2. 3f3��v St`cf✓� �� /�/S 13(1 3 11, z 6, is i p�'M�v- I v l33 Z I I I •C.r _9'43 1�7� 1-5 Note:Temp.pH,EC must stabilize±5%for successive measurements taken in intervals>5 minutes ):\Lab\Forms\Field Sheets\Monitor_Well_Flushing_Record.doc Group 5 SOUTH TAHOE PUBLIC UTILITY DISTRICT Date: c.; '1+•Z/ ACMW FIELD MONITORING RECORD Samplers: Purpose Le Preservative Std Check Depth to Well Water Calc ActualDepth Well Casing Column Waterto Water mto GW Temp EC Bottom Diameter Height Purge Purged HzSO4 z o ID# Time ft °C H PS/cm ft Inch ft Gallons Gallons fn H= x H EC COMMENTS rACMW-15 29.5 2 111U �� ACMW-16 i1.6 29.0 2 ��,�` .}t i.� iz5(y ;ro� �.q &.11 �sti-q ACMW-17 30.0 2 ACMW-18 28.0 2 j el ,ACMW-19 1"Ib uufi ct'? 20.0 2 Trip Blank AG7664, � B ,.2r� Temperature of Control � hh i I L n samples received b 3 1 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 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>_5 minutes. Water column height=50'_35'=15' n�i +nonnF Flushinc! Record Date: O <""l Zj Temp EC Minutes Gallons °C pH PS Well Time Flushed Flushed ±5% ±5% ±5% Sampler Comments tliC - �`> loll 2 Z. iz. v,�� " ' �? u� 63 foci �ci�w ly /03� z 2 S 'V C Icy`/5 3 $ /6', G v3 /9cMw - ! AcMw Ib �2�� 2 3 i►.H G.�� 1'�Z ��r�� @ �� )2/Q 1D II. I Note:Temp,pH,EC must sfghlMe 5%for successive measurements taken in inteeals>_5 minutes )1Lab\Forms\Field Sheets\Monitor_Well_Flushing_Record.doc