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General Information
Party ID Party Name Party Classification Mailing Address Work Phone Email/Website
619422 Kerry O?Connor None kerry.oconnor@waterboards.ca.gov
  
  
  
  
Expand/Contract Related Places
Related Places
Place ID Place Name County Region Place Type Relationship to Party Relationship Start Date Relationship End Date
Total Related Places: 0
  
  
  
  
Expand/Contract Related Parties
Related Parties
Party ID Party Name Party Type Role/Relationship Relationship Start Date Relationship End Date Classification
137758 San Francisco Bay Regional Water Quality Control Board Organization Employee 10/22/2020 None Waterboard
Total Related Parties: 1
  
  
  
  
Expand/Contract Regulatory Measures
Regulatory Measures (non-enforcement)
Reg. Measure ID Regulatory Measure Type Region WDID Status Program Order No. RM Effective Date RM Termination Date Relationship Relationship Start Date Relationship End Date Amended?
Total Regulatory Measures: 0
  
  
  
  
Expand/Contract Violations
Violations within the past five years
Violation ID Occurrence Date Violation Type Violation Description(-) Violation Status Priority Source Facility Name Violated Reg. Meas. ID Violated Reg. Meas. Order No. Linked to Enf.
1098613 11/30/2021 CAT2 Copper, Total Recoverable Monthly Average limit is 8.3 ug/L and reported value was 64 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099813 12/30/2021 CAT2 Chlorine, Total Residual Maximum Daily (MDEL) limit is 0.0 mg/L and reported value was 1.17 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099836 01/01/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 25 mg/L and reported value was 32 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101422 01/12/2022 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 37 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101426 01/31/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 15 mg/L and reported value was 16 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1102668 02/28/2022 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 43.54 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1095606 09/11/2021 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 55.29 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1098614 11/17/2021 CAT2 Copper, Total Recoverable Maximum Daily (MDEL) limit is 14 ug/L and reported value was 64 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099815 12/24/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 50 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099823 12/25/2021 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 47 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101425 01/31/2022 CAT2 Copper, Total Monthly Average (Mean) limit is 8.3 ug/L and reported value was 35.5 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1102669 02/19/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 66.14 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1102670 02/28/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 30.71 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1102671 02/12/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 47.43 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1102838 02/28/2022 CAT2 Copper, Total Recoverable Monthly Average limit is 8.3 ug/L and reported value was 9.85 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1106903 02/08/2022 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 920 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1098612 11/20/2021 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 20 mg/L and reported value was 26 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099821 12/28/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 61 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099822 12/29/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 58 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099832 12/19/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 36 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099814 12/18/2021 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 20 mg/L and reported value was 21 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099816 12/14/2021 OEV Total Coliform Maximum Daily (MDEL) limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099817 12/30/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 59 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099820 12/27/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 65 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099824 12/18/2021 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 35 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099827 01/01/2022 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 20 mg/L and reported value was 29 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099833 12/21/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 40 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101421 01/12/2022 OEV Total Coliform Maximum Daily (MDEL) limit is 240 MPN/100 mL and reported value was 920 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1102831 02/08/2022 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1104602 04/30/2022 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 33.4 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1099819 12/20/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 41 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099829 12/31/2021 CAT2 Copper, Total Monthly Average limit is 8.3 ug/L and reported value was 44 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099830 12/08/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 27 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101091 01/29/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 47.57 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1098609 11/30/2021 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 15 mg/L and reported value was 19 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099818 12/17/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 25 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099825 12/26/2021 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 50 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099828 12/31/2021 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 15.0 mg/L and reported value was 24.0 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1100231 10/24/2021 CAT2 Copper, Total Recoverable Daily Maximum limit is 76 ug/L and reported value was 95 ug/L at EFF-001B. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1102830 02/28/2022 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 15 mg/L and reported value was 35 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1102833 02/12/2022 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 25 mg/L and reported value was 35 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099812 12/31/2021 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 15 mg/L and reported value was 23 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099831 12/16/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 19 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099835 12/23/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 43 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101090 01/31/2022 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 32.59 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1101417 01/11/2022 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 39 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101423 01/31/2022 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 15 mg/L and reported value was 20 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1102837 02/28/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 15 mg/L and reported value was 36 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1102839 02/12/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 25 mg/L and reported value was 36 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1105515 12/31/2021 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 38 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1099811 12/11/2021 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 20 mg/L and reported value was 22 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1099834 12/22/2021 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 46 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101418 01/13/2022 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 34 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101419 01/31/2022 CAT2 Cyanide, Total (as CN) Monthly Average (Mean) limit is 9.3 ug/L and reported value was 16 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1101424 01/14/2022 CAT2 Copper, Total Maximum Daily (MDEL) limit is 14 ug/L and reported value was 32 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 Y
1105516 12/18/2021 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 48 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 Y
1102836 02/28/2022 Deficient Monitoring E. Coli sampling is required weekly, when discharging to the river. These analyses were requested on the Chain of Custody forms but were not performed by the City¿s contracted lab during the February discharge period. The City alerted the lab to the issue and they will provide the required analyses moving forward. pH and temperature measurements are required daily, at monitoring location EFF-001, when discharging to the river. Operators missed this required. They were made aware of the requirement and will record these values during future discharge events. On 2/16, while discharging to the river, operators missed a series of required at EFF-001D sampling, when discharging to the river. EFF-001D samples were collected on 2/17 instead, but by then discharge had stopped. Operators were made aware of the issue and EFF-001D samples will be collected on days of discharge in the future. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1117285 04/01/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 58.63 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1101420 01/31/2022 Deficient Monitoring E. Coli sampling is required weekly, when discharging to the river. This sampling was missed during the 4 days of January discharge (1/11 to 1/14). This is a new monitoring constituent, added in the 2021 permit. The WWTRP changed procedures so this sampling is not missed in the future. pH and temperature measurements are required daily, at monitoring location EFF-001, when discharging to the river. Operators missed this requirement during river discharge, from 1/11 to 1/14. Operators were made aware of the requirement and will record these values during future discharge events. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118254 05/27/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 61.57 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1118255 05/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 113.345 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1125337 02/03/2024 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 25 mg/L and reported value was 29 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120701 03/05/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.7 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114145 01/31/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 69 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1093534 07/14/2021 CAT2 Copper, Total Recoverable Daily Maximum limit is 53 ug/L and reported value was 63 ug/L at EFF-001. Violation N eSMR Delta Diablo WWTP 435913 R2-2019-0035 N
1115046 02/04/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 116.83 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120722 03/09/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.6 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1116362 03/25/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 47.07 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114694 01/06/2023 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 15 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1094436 08/03/2021 Deficient Monitoring For Chronic Toxicity: C.dubia - (Reproduction) Single Sample Trigger Maximum limit is 2 TUc and reported value was 4.6 TUc at EFF-001. C.dubia - Three-Sample Trigger Maximum limit is 1 TUc and reported value was 4.6 TUc at EFF-001 Violation N eSMR Sonoma Valley County SD WWTP 432957 R2-2019-0019 N
1126562 03/30/2024 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 25 mg/L and reported value was 30 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120740 03/21/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 25 mg/L and reported value was 46 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1126569 03/29/2024 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.6 SU at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1125346 02/01/2024 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 110 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1125343 02/21/2024 CAT1 Ammonia, Total (as N) Maximum Daily (MDEL) limit is 16 mg/L and reported value was 17 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114700 01/08/2023 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 16 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1125324 02/20/2024 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001T. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1120712 03/01/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1109733 09/30/2022 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 82 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120706 03/25/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 130 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118993 06/30/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 100.28 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1109735 09/30/2022 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 71.7 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1119669 07/29/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 139.33 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1109566 09/12/2022 Deficient Monitoring Samples for BOD & TSS were sent to contract lab for analysis for 09/12, 09/13, & 9/14. Alpha Labs only logged in the BOD's and not the TSS's. All three samples for TSS were run past hold time. Violation N eSMR Sonoma Valley County SD WWTP 432957 R2-2019-0019 N
1120716 03/01/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.8 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1095954 09/30/2021 CAT2 Zinc, Total Monthly Average limit is 58 ug/L and reported value was 59.3 ug/L at EFF-001. Violation N eSMR Sonoma Valley County SD WWTP 432957 R2-2019-0019 N
1120719 03/02/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.9 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114183 01/31/2023 Deficient Monitoring Operators missed pH sampling at EFF-001S on 1/4/2023 and at EFF-001T on 1/12/2023 and 1/16/2023. These were 3 of the 7 days with both EFF-001S and EFF-001T discharges when only one of the two flows were sampled for pH. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1110848 10/07/2022 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 45 mg/L and reported value was 64.43 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120738 03/02/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 25 mg/L and reported value was 40 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1116007 03/14/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 33 MPN/100 mL at EFF-001S. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1118257 05/06/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 117.06 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114693 01/31/2023 CAT2 Copper, Total Monthly Average (Mean) limit is 8.3 ug/L and reported value was 11 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120711 03/04/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1126520 03/31/2024 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 15 mg/L and reported value was 19.6 mg/L at EFF-001. Violation N eSMR Mt. View Sanitary District WWTP 446024 R2-2021-0026 N
1110850 11/04/2022 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 45 mg/L and reported value was 57.86 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120730 03/15/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1119670 07/31/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 47.22 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115043 02/18/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 46.41 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1126567 03/31/2024 CAT1 Ammonia, Total (as N) Monthly Average limit is 7.8 mg/L and reported value was 8.3 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120737 03/07/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 25 mg/L and reported value was 56 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1115035 02/11/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 82.67 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120735 03/18/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 25 mg/L and reported value was 30 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1099826 12/31/2021 Deficient Monitoring Effluent E. coli monitoring is required weekly during periods of discharge to the Napa River; this sampling was not conducted until the final week of discharge, on 12/28. Unfortunately, even the 12/28 result is not available as the contract lab mistakenly returned fecal coliform results instead. Effluent samples were collected for BOD and TSS for the week of 12/19-12/25, but the contract lab has not provided the results at this time. Effluent pH and temperature results were not recorded on 12/9, 12/11, and 12/12. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1126561 03/16/2024 OEV Total Coliform Maximum Daily (MDEL) limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114138 01/07/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 49.27 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120723 03/02/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1124673 01/20/2024 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 20 mg/L and reported value was 31 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120757 03/12/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1117290 04/30/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 38.85 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115063 02/01/2023 Deficient Monitoring The analysis results for the BOD samples collected on February 1st and 2nd are invalid because the tests failed the quality assurance and quality control (QA/QC) protocols for the test. Consequently, the District does not have the two BOD sample results required for the first week of February. The QA/QC failed because the Laboratory Control Samples (LCS) for the BOD samples collected on those two days were prepared with the incorrect standard. The sample results for the Ammonia samples collected on February 8th and 9th were analyzed outside of the normal hold times. Violation N eSMR Delta Diablo WWTP 435913 R2-2019-0035 N
1120742 03/31/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 81.1 % at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120728 03/13/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 1600 MPN/100 mL. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120736 03/25/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 25 mg/L and reported value was 46 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1123408 12/31/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 84 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1123412 12/23/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 45 mg/L and reported value was 67.5 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120717 03/03/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 9.0 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120715 03/09/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1123414 12/31/2023 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 30 mg/L and reported value was 39.5 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120733 03/18/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114697 01/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 15 mg/L and reported value was 35 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1100905 10/25/2021 OEV Enterococci 30-Day Geometric Mean limit is 35 CFU/100 mL and reported value was 142 CFU/100 mL at EFF-001b. Violation N eSMR Sausalito Marin City STP 422035 R2-2018-0025 N
1112960 11/05/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 89 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1109736 09/24/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 63.14 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1119668 07/07/2023 Deficient Reporting The analysis results for BOD samples (INF-001 and EFF-001) collected on July 7th are invalid because the tests failed the quality assurance and quality control (QA/QC) protocols for the test. Consequently, the District does not have the two valid BOD sample results required for the first week of July. The District reanalyzed the sample collected July 7th on July 13th. However, this test is beyond the acceptable hold time for BOD sampling. As such, these sample results are qualified in CIWQS as analyzed after the holding time expired. Violation N eSMR Delta Diablo WWTP 435913 R2-2019-0035 N
1120744 03/19/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1125325 02/04/2024 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 540 MPN/100 mL at EFF-001S. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1113330 12/17/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 64.17 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1093623 07/12/2021 Deficient Monitoring Chronic Toxicity - C.dubia - Reproduction Single Sample Trigger Maximum limit is 2 TUc and reported value was 10.3 TUc at EFF-001. Chronic Toxicity - C.dubia -Survival for the same sample was < 1 TUc. Violation N eSMR Sonoma Valley County SD WWTP 432957 R2-2019-0019 N
1117284 04/22/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 194.47 mg/L. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1095955 09/13/2021 Deficient Monitoring For Chronic Toxicity: C. dubia - Three-Sample Median Trigger Maximum limit is 1 TUc and reported value was 4.6 TUc at EFF-001 Violation N eSMR Sonoma Valley County SD WWTP 432957 R2-2019-0019 N
1114144 01/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Percent Reduction limit is 85 % and reported value was 66 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1119001 06/03/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 149.57 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114137 01/21/2023 CAT1 Total Suspended Solids (TSS) 1-Hour Average (Mean) limit is 45 mg/L and reported value was 47.03 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1124665 01/31/2024 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 83.7 % at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120751 03/08/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118256 05/27/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 135.49 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1117286 04/30/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 126.275 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1123411 12/31/2023 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85 % and reported value was 80 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1124672 01/13/2024 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 20 mg/L and reported value was 36 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1108776 08/13/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 168 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120714 03/08/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120756 03/13/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1126566 03/31/2024 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 15 mg/L and reported value was 23.75 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120703 03/22/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 220 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1126574 03/25/2024 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.7 SU at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120704 03/23/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118249 05/31/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 65 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1126564 03/20/2024 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 49 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114139 01/14/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 51.77 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1110851 11/04/2022 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 30 mg/L and reported value was 34.4 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115041 02/28/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 60.41 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120709 03/28/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 220 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1123410 12/09/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 45 mg/L and reported value was 72.17 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1098615 11/30/2021 Deficient Monitoring Effluent samples were not analyzed for E.coli this month. E.coli monitoring is a new requirement in our 2021 permit and the chain of custody forms we were using had not been updated with the new requirements. This issue has been corrected and E.coli will be sampled moving forward. pH and temperature measurements are required daily, at monitoring location EFF-001, when discharging to the river. Operators missed this requirement. pH and temperature were recorded only at monitoring location EFF-001-D (disinfected effluent entering the pond). pH measurements are also required daily, at monitoring location EFF-001-D, when discharging to the river. Effluent samples were analyzed for pH and temperature was recorded on a weekly, instead of daily, frequency. Total coliform sampling is required weekly at EFF-001-D, when discharging to the river. Effluent was discharged to the river from 11/16 to 11/29 this month (over three calendar weeks). Operators missed this requirement for the third week of discharge. Influent BOD and TSS sampling are required weekly, when discharging to the river. Effluent was discharged to the river from 11/16 to 11/29 this month (over three calendar weeks). Operators missed this requirement for the second week and the third week of discharge. Monitoring training has been provided and all sampling will be collected in the future. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1112476 12/31/2022 OEV Enterococci Monthly 90th% limit is 110.0 CFU/100 mL and reported value was 784.23 CFU/100 mL at EFF-002. Violation N eSMR Sonoma Valley County SD WWTP 432957 R2-2019-0019 N
1114703 01/07/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 25.0 mg/L and reported value was 47.0 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1115040 02/11/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 57.79 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1107627 07/31/2022 CAT1 Ammonia, Total (as N) Monthly Average (Mean) limit is 32 mg/L and reported value was 33.12 mg/L at EFF-001. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1113333 12/10/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 61.8 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1109565 09/12/2022 Deficient Monitoring Samples for BOD & TSS were sent to contract lab for analysis for 09/12, 09/13, & 9/14. Alpha Labs only logged in the BOD's and not the TSS's. All three samples for TSS were run past hold time. Violation N eSMR Sonoma Valley County SD WWTP 432957 R2-2019-0019 N
1118251 05/20/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45.0 mg/L and reported value was 87 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120760 03/16/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118258 05/06/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 55.14 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120707 03/26/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 130 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120741 03/31/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 15 mg/L and reported value was 44.75 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118250 05/13/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 96.29 mg/L. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120754 03/11/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118992 06/17/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 103.81 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1123407 12/16/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 45 mg/L and reported value was 54.68 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120752 03/08/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.7 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1115055 02/28/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 15 mg/L and reported value was 20.8 mg/L at EFF-001. Violation N eSMR Mt. View Sanitary District WWTP 446024 R2-2021-0026 N
1114701 01/07/2023 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 25 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1113334 12/03/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 52.4 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1112706 12/31/2022 OEV Enterococci Monthly 90th% limit is 110 MPN/100 mL and reported value was 920.8 MPN/100 mL at EFF-001. Violation N eSMR Mt. View Sanitary District WWTP 446024 R2-2021-0026 N
1120693 03/19/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1108779 08/20/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 114 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1126572 03/18/2024 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.7 SU at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1109731 09/03/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 104.43 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114696 01/05/2023 CAT2 Copper, Total Daily Maximum limit is 14 ug/L and reported value was 17 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1126575 03/26/2024 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.9 SU at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1117283 04/15/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 127.57 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1108773 08/31/2022 OEV Total Coliform Monthly Median limit is 240 MPN/100 mL and reported value was 920 MPN/100 mL at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1116364 03/04/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 47.61 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120713 03/07/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1113327 12/31/2022 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 73.4 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1116360 03/31/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 78 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1113332 12/31/2022 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 79 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1126521 03/23/2024 CAT2 Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.019 mg/L and reported value was 1.245 mg/L at EFF-001A. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1114695 01/31/2023 Deficient Monitoring Effluent total coliform and E. coli monitoring is required weekly at EFF-001D during periods of discharge to the Napa River; this sampling was missed this month. Effluent and influent BOD and TSS monitoring is required weekly at EFF-001D during periods of discharge to the Napa River; in January, four weekly samples should have been collected. Sampling was conducted, but not at the required frequency. Influent and effluent TSS monitoring was conducted once, as was influent BOD. Effluent BOD monitoring was conducted twice. pH measurements are required daily, at monitoring locations EFF-001 and EFF-001D, when discharging to the Napa River. Daily measurements were taken at EFF-001, but some were missed at EFF-001D. pH measurements at EFF-001D were not recorded on weekends and holidays this month (1/1-1/2, 1/7- 1/8, 1/14-1/16, 1/21-1/22). Effluent cyanide monitoring is required monthly at EFF-001 during periods of discharge to the Napa River; this sampling was missed this month. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1113335 12/10/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 96.6 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1124667 01/31/2024 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120731 03/16/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1116367 03/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 30 mg/L and reported value was 43.962 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1108774 08/20/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 048.6 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1101261 12/31/2021 Deficient Monitoring Copper sampling is required monthly when discharging to the river, but unfortunately staff did not request this analysis from the analytical laboratory. We don¿t foresee this being an issue moving forward; a sample was taken in January, as required, and results are pending. E. coli sampling is required weekly, when discharging to the river, at both EFF-001S and EFF-001T. Flow was produced at EFF-001S over a period of two weeks, from 12/15 to 12/28, and E. coli samples were collected on 12/17 and 12/24. Unfortunately, the lab analyzed the 12/17 for total coliform, instead of E. coli as requested on the Chain of Custody (COC) form. As such there is no E. Coli result to report for 12/17 at EFF-001S. The 12/24 result was non-detect, below the analytical detection level of 1 MPN/ 100mL. Flow was produced at EFF-001T over a period of three weeks, from 12/1 to 12/14 and again from 12/29 to 12/31. E. coli samples were collected weekly on 12/17, 12/24, and 12/30, and the analysis requested on the respective COC forms. Unfortunately, the lab failed to analyze for E. coli on all three occasions. Moving forward, we have alerted the lab to this issue and they assured us that all required analyses will be processed in the future. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1115038 02/28/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 83 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120734 03/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 15 mg/L and reported value was 31.5 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1104449 10/24/2021 Deficient Monitoring Operators did not perform the full range of sampling required at EFF-001S, as specified in Table E-4 of Order No. R2-2020-0026. Weekly BOD and TSS were missed for the period of EFF-001S discharge (10/24 and 10/25). Operators are aware of these requirements moving forward. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1113331 12/31/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 52.6 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1124671 01/31/2024 CAT1 Ammonia, Total (as N) Monthly Average (Mean) limit is 7.8 mg/L and reported value was 14 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1109732 09/17/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 84.29 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1118252 05/31/2023 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85 % and reported value was 64 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120749 03/07/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1108775 08/27/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 % and reported value was 47.7 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1126570 03/20/2024 OEV pH 5-Sample Median limit is 8.5 SU and reported value was 8.8 SU at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1125345 02/29/2024 CAT1 Ammonia, Total (as N) Monthly Average limit is 7.8 mg/L and reported value was 15.7 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1108771 08/11/2022 CAT2 Copper, Total Monthly Average (Mean) limit is 41 ug/L and reported value was 63 ug/L at EFF-001. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120702 03/21/2023 OEV Total Coliform Daily Maximum limit is 23 MPN/100 mL and reported value was 220 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1124668 01/31/2024 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 110 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1109737 09/03/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 55.25 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1119671 07/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 55.225 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120720 03/06/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.7 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118998 06/10/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 186.43 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1108777 08/31/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 50.4 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1124670 01/31/2024 CAT2 Copper, Total Recoverable Monthly Average limit is 8.3 ug/L and reported value was 14 ug/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1117282 04/30/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 72 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120710 03/03/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120747 03/02/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 240 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1117280 04/08/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 48.2 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115039 02/04/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 93.14 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1124658 01/27/2024 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 20 mg/L and reported value was 30 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1116361 03/31/2023 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85 % and reported value was 72 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1118248 05/31/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 71.47 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1121422 09/30/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 47.87 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1118995 06/30/2023 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85 % and reported value was 74 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114702 01/21/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 20 mg/L and reported value was 25 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1108772 08/13/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 68.7 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115044 02/25/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 70.33 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115037 02/28/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 76.67 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1124659 01/31/2024 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 15 mg/L and reported value was 22 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1110849 10/14/2022 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 45 mg/L and reported value was 56.14 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115042 02/25/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 67.24 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1118253 05/13/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 91.14 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1117289 04/01/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 58.01 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1113329 12/31/2022 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85 % and reported value was 83 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115045 02/28/2023 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85 % and reported value was 78 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120718 03/04/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 9.1 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114698 01/31/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 15.0 mg/L and reported value was 25 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120708 03/27/2023 OEV Total Coliform 5-Sample Median limit is 23.0 MPN/100 mL and reported value was 240.0 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1105893 05/28/2022 Deficient Monitoring On May 28, 2022, a coliform sample was collected and analyzed by method SM 9221 B, C. The sample was collected at the Chlorine Contact Basin II (CCB II) location as specified in the SOP. However, CCB II was offline at the time of sampling, and therefore resulted in a deficient sampling event, as the sample collected was not representative of the flow at the time. Corrective action was initiated, and the sampling location was changed to the outfall of the final CCB in operation and prior to dechlorination. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120726 03/23/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120745 03/11/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1125344 02/18/2024 CAT1 Ammonia, Total (as N) Maximum Daily (MDEL) limit is 16 mg/L and reported value was 19 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1126565 03/22/2024 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 41 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114026 01/04/2023 Deficient Monitoring The analysis results for BOD samples collected on January 4 and 6 were invalid because the tests failed the quality assurance and quality control (QA/QC) protocols for the test. Consequently, the District does not have the two BOD sample results required for the week of January 1st. District staff investigated the cause of the failed analysis and determined the QA/QC failure was related to the heavy storms that occurred during early January. The significant storms over-diluted the primary effluent used to seed the BOD. Violation N eSMR Delta Diablo WWTP 435913 R2-2019-0035 N
1108782 08/31/2022 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 73 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1108770 08/31/2022 OEV Total Coliform Daily Maximum limit is 10000 MPN/100 mL and reported value was 16000 MPN/100 mL at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120748 03/06/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1123409 12/23/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 67.51 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114140 01/28/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 82 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114143 01/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 47.214 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1118999 06/17/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 85.07 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1126573 03/19/2024 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.8 SU at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1117288 04/29/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 134.87 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1124666 01/31/2024 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 15 mg/L and reported value was 28.3 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1094648 08/05/2021 CAT2 Mercury, Total Weekly Average (Mean) limit is 0.072 ug/L and reported value was 0.086 ug/L at EFF-001. Violation N eSMR Delta Diablo WWTP 435913 R2-2019-0035 N
1126571 03/22/2024 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 41 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1123413 12/31/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 30 mg/L and reported value was 55.32 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120753 03/09/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1116006 03/10/2023 OEV Total Coliform Daily Maximum limit is 240.0 MPN/100 mL and reported value was 1600.0 MPN/100 mL at EFF-001S. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1125338 02/01/2024 OEV Total Coliform Maximum Daily (MDEL) limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120729 03/10/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120943 08/05/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 63.97 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1117281 04/30/2023 CAT1 BOD5 @ 20 Deg. C, Percent Removal Percent Reduction limit is 85 % and reported value was 51 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1113326 12/17/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 92.2 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120758 03/14/2023 OEV Total Coliform Daily Maximum limit is 240 mg/L and reported value was 1600 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1108780 08/27/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 82.7 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1118997 06/10/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 152.83 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1093533 07/31/2021 CAT2 Copper, Total Recoverable Monthly Average (Mean) limit is 35 ug/L and reported value was 63 ug/L at EFF-001. Violation N eSMR Delta Diablo WWTP 435913 R2-2019-0035 N
1125341 02/22/2024 CAT1 Ammonia, Total (as N) Maximum Daily (MDEL) limit is 16 mg/L and reported value was 18 mg/L at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1114142 01/31/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 56.76 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1116363 03/11/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 56.74 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1126563 03/23/2024 CAT1 Total Suspended Solids (TSS) Weekly Average limit is 25 mg/L and reported value was 27 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1109734 09/10/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 48.71 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120721 03/07/2023 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.6 SU at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1113328 12/31/2022 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 49.2 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120727 03/27/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120695 03/29/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 220 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1116005 03/10/2023 OEV E.coli 10 Sample 90th Percentile limit is 320 MPN/100 mL and reported value was 579.4 MPN/100 mL at EFF-001S. Violation N eSMR Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1116365 03/31/2023 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 51.69 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120694 03/20/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 220 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120750 03/10/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1119672 07/29/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 103.94 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1115036 02/18/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 50.83 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1119000 06/30/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 89.188 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114141 01/28/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 60.46 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120755 03/12/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120739 03/14/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 25 mg/L and reported value was 37 mg/L at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1126568 03/27/2024 OEV pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.8 SU at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120761 03/21/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118996 06/03/2023 CAT1 Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 152 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1108778 08/06/2022 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 96 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120759 03/15/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1117287 04/22/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 49.24 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120746 03/01/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 240 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1118994 06/30/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Percent Reduction limit is 85 % and reported value was 58 % at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1116366 03/25/2023 CAT1 Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 55.7 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1120724 03/03/2023 OEV Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1120725 03/14/2023 OEV Total Coliform 5-Sample Median limit is 23 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1112959 11/30/2022 CAT1 Total Suspended Solids (TSS) Monthly Average limit is 30.0 mg/L and reported value was 35.1 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1114699 01/31/2023 CAT1 Total Suspended Solids (TSS), Percent Removal Monthly Average (Mean) limit is 85 % and reported value was 70.2 % at EFF-001-D. Violation N eSMR St. Helena City WWTP 442938 R2-2021-0004 N
1108781 08/31/2022 CAT1 Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 114.9 mg/L at EFF-002. Violation N eSMR West County Agency Outfall 428795 R2-2019-0003 N
1119939 03/02/2023 Late Report Monthly SMR ( MONNPDES ) report for January 2023 (2745411) was due on 01-MAR-23 Violation None Report Central Marin San. Agcy. WWTP 452582 R2-2023-0006 N
1109823 03/31/2022 Deficient Monitoring Deficient monitoring of ammonia for Quarter 1 of 2022. Violation None Report St. Helena City WWTP 442938 R2-2021-0004 N
1112692 12/31/2022 Unauthorized Discharge On Saturday, December 31, 2022, the District experienced extraordinarily high influent flows throughout its satellite collection systems and conveyance system as a result of the atmospheric river that hit the Bay Area. There was an overflow in the headworks area of the Delta Diablo Wastewater Treatment Plant (WWTP) located at 2500 Pittsburg Antioch Hwy in Antioch, CA. A portion of the overflow, consisting of wastewater that had been screened and underwent grit removal, may have reached a stormwater drainage canal to the east of the WWTP. Most of the overflow was contained onsite and sent through the WWTP for full treatment. The overflow started at 1715 and ended at 1830 (75 minutes) at the grit chamber. The total overflow volume is estimated at 84,375 gallons and the flow travelled to the west, north, and east of the overflow point and was mostly contained on the WWTP site where it will be returned through the system for full treatment (80,625 gallons). The portion of the overflow that may have reached receiving waters is estimated to be 3,750 gallons (50 gallons per minute for 75 minutes). The involved waterway was the Los Medanos Wasteway, a drainage canal running north to south along the east side of the WWTP. CalOES was notified of the unauthorized discharge. No receiving water sampling was conducted as river conditions were deemed unsafe for staff during the storm event. Observations of the receiving waters could not be made due to the discharge being diluted by inflow and infiltration and due to the saturation of the area due to the rainfall. Violation None Report Delta Diablo WWTP 435913 R2-2019-0035 N
1106154 07/01/2022 Late Report Monthly SMR ( MONNPDES ) report for May 2022 (2497055) was due on 30-JUN-22 Violation None Report St. Helena City WWTP 442938 R2-2021-0004 N
1100569 02/01/2022 Late Report Monthly SMR ( MONNPDES ) report for December 2021 (2417333) was due on 31-JAN-22 Violation None Report Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1124124 01/31/2024 Late Report Monthly SMR ( MONNPDES ) report for December 2023 (2762810) was due on 30-JAN-24 Violation None Report Sausalito Marin City STP 422035 R2-2018-0025 N
1113385 02/02/2023 Late Report Annual SMR ( MONNPDES ) report for 2022 (2205757) was due on 01-FEB-23 Violation None Report West County Agency Outfall 428795 R2-2019-0003 N
1119940 04/04/2023 Late Report Monthly SMR ( MONNPDES ) report for February 2023 (2745412) was due on 03-APR-23 Violation None Report Central Marin San. Agcy. WWTP 452582 R2-2023-0006 N
1114114 02/16/2023 Late Report Annual SMR ( MONNPDES ) report for 2022 (2161256) was due on 15-FEB-23 Violation None Report Napa River Salt Marsh Restoration Project 412717 R2-2017-0007 N
1119944 08/02/2023 Late Report Monthly SMR ( MONNPDES ) report for June 2023 (2745416) was due on 01-AUG-23 Violation None Report Central Marin San. Agcy. WWTP 452582 R2-2023-0006 N
1119942 06/02/2023 Late Report Monthly SMR ( MONNPDES ) report for April 2023 (2745414) was due on 01-JUN-23 Violation None Report Central Marin San. Agcy. WWTP 452582 R2-2023-0006 N
1113258 01/31/2023 Late Report Monthly SMR ( MONNPDES ) report for December 2022 (2205609) was due on 30-JAN-23 Violation None Report West County Agency Outfall 428795 R2-2019-0003 N
1109796 02/28/2022 Deficient Monitoring Failure to sample for pH and temperature. Violation N Report St. Helena City WWTP 442938 R2-2021-0004 N
1112226 12/31/2022 Late Report Monthly SMR ( MONNPDES ) report for November 2022 (2205608) was due on 30-DEC-22 Violation None Report West County Agency Outfall 428795 R2-2019-0003 N
1111270 12/01/2022 Late Report Monthly SMR ( MONNPDES ) report for October 2022 (2497060) was due on 30-NOV-22 Violation None Report St. Helena City WWTP 442938 R2-2021-0004 N
1119943 07/04/2023 Late Report Monthly SMR ( MONNPDES ) report for May 2023 (2745415) was due on 03-JUL-23 Violation None Report Central Marin San. Agcy. WWTP 452582 R2-2023-0006 N
1100633 02/02/2022 Late Report Annual SMR ( MONNPDES ) report for 2021 (2417334) was due on 01-FEB-22 Violation None Report Yountville / CA Vets Home WWTP 440857 R2-2020-0026 N
1119941 05/02/2023 Late Report Monthly SMR ( MONNPDES ) report for March 2023 (2745413) was due on 01-MAY-23 Violation None Report Central Marin San. Agcy. WWTP 452582 R2-2023-0006 N
1114630 03/03/2023 Late Report Monthly SMR ( MONNPDES ) report for January 2023 (2497077) was due on 02-MAR-23 Violation None Report St. Helena City WWTP 442938 R2-2021-0004 N
1105365 05/31/2022 Late Report Monthly SMR ( MONNPDES ) report for April 2022 (2186572) was due on 30-MAY-22 Violation None Report Sausalito Marin City STP 422035 R2-2018-0025 N
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
Total Violations: 323
*Click the "(+/-) Violation Description" link to expand and contract the violation description.
  
  
  
  
Expand/Contract Enforcement Actions
Enforcement Actions
Enforcement ID Enforcement Type Enf. Order No. Title Program Effective Date Status
Total Enforcement Actions: 0
  
  
  
  
Expand/Contract Enforcement Actions
Regulatory Measures linked to Related Parties
Reg. Measure ID Organization Regulatory Measure Type Program Effective Date Status
142470 San Francisco Bay Regional Water Quality Control Board WDR LNDISP 07/31/1996 Historical
Total Regulatory Measures linked to Related Parties: 1
  
  
The current report was generated with data as of: 05/17/2024
Regional Boards are in the process of entering backlogged data.
As a result, data may be incomplete.
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