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. |
1128641 |
02/29/2024 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal Monthly Minimum limit is 85.0 % and reported value was 83.0 % at EFF-001. |
Violation |
None |
Report |
Treasure Island WWTP/DOD |
438627 |
R2-2020-0020 |
N |
1122669 |
07/31/2023 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal Monthly Minimum limit is 85 % and reported value was 82 % at EFF-001. |
Violation |
None |
Report |
Treasure Island WWTP/DOD |
438627 |
R2-2020-0020 |
N |
1108114 |
02/02/2021 |
OEV |
Total Coliform 5-Sample Median limit is 23.0 MPN/100 mL and reported value was 46.0 MPN/100 mL at EFF-001. |
Violation |
None |
Report |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
Y |
1108113 |
01/30/2021 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average limit is 20.0 mg/L and reported value was 24.8 mg/L at EFF-001. |
Violation |
None |
Report |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
N |
1108108 |
01/31/2021 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average (Mean) limit is 15.0 mg/L and reported value was 24.8 mg/L at EFF-001. |
Violation |
None |
Report |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
N |
1092717 |
06/30/2021 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 42 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1092716 |
06/12/2021 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 59 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1092715 |
06/19/2021 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 63 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1092714 |
06/12/2021 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) 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 |
1092328 |
06/09/2021 |
Deficient Monitoring |
On June 9, 2021 at 01:07, the Post CL2 residual at the Sonoma Valley Treatment Plant dropped suddenly causing the plant to divert tertiary final effluent into EQ #3. During this time the Monthly Flow-Through Bioassay was in progress. The plant diverted into EQ #3 until 05:02 for a total of approximately 4 hours. During this time there was no flow to the bioassay unit. When the Operator arrived at the plant it was discovered the probe on the CL2 analyzer was fouled with debris. After cleaning the probe and re-calibrating the analyzers, discharge of tertiary final effluent was resumed to the R4 reservoir and flow to the bioassay unit was resumed. |
Violation |
N |
eSMR |
Sonoma Valley County SD WWTP |
432957 |
R2-2019-0019 |
N |
1089553 |
03/31/2021 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 15 mg/L and reported value was 15.6 mg/L at EFF-001. |
Violation |
N |
eSMR |
Mt. View Sanitary District WWTP |
406134 |
R2-2016-0023 |
Y |
1089262 |
07/31/2020 |
Deficient Monitoring |
Failure to monitor for enterococci (4x/yr from June - Sept.). Discharger reported NODI E for "failed to sample" in their DMR and no data in their eSMR. |
Violation |
N |
Report |
Sausalito Marin City STP |
422035 |
R2-2018-0025 |
N |
1089212 |
10/31/2020 |
Deficient Reporting |
Failed to sample Enterococci for 002-A for the monitoring period ending in October 2020. Self-reported in ICIS using the NODI code E for "failed to sample." |
Violation |
N |
Report |
West County Agency Outfall |
428795 |
R2-2019-0003 |
N |
1089203 |
03/31/2021 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average (Mean) limit is 15 mg/L and reported value was 22.1 mg/L at EFF-001. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
Y |
1089202 |
03/20/2021 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average limit is 20 mg/L and reported value was 21.7 mg/L at EFF-001. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
Y |
1089201 |
03/25/2021 |
OEV |
Total Coliform Maximum Daily (MDEL) limit is 240 CFU/100 mL and reported value was 540 CFU/100 mL at EFF-001. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
Y |
1089200 |
03/24/2021 |
Deficient Monitoring |
Daily analysis of total coliform was missed on 3/24/2021. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
N |
1089199 |
03/27/2021 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average limit is 15 mg/L and reported value was 25 mg/L at EFF-001. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
Y |
1088183 |
02/28/2021 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average (Mean) limit is 15 mg/L and reported value was 18 mg/L at EFF-001. |
Violation |
N |
eSMR |
Mt. View Sanitary District WWTP |
406134 |
R2-2016-0023 |
Y |
1088182 |
02/13/2021 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average (Mean) limit is 25 mg/L and reported value was 32 mg/L at EFF-001. |
Violation |
N |
eSMR |
Mt. View Sanitary District WWTP |
406134 |
R2-2016-0023 |
Y |
1088181 |
02/18/2021 |
CAT1 |
Ammonia, Total (as N) Daily Maximum limit is 4.7 mg/L and reported value was 4.8 mg/L at EFF-001. |
Violation |
N |
eSMR |
Mt. View Sanitary District WWTP |
406134 |
R2-2016-0023 |
Y |
1088165 |
02/28/2021 |
CAT2 |
Copper, Total Monthly Average limit is 8.3 ug/L and reported value was 8.9 ug/L at EFF-001. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
Y |
1088164 |
02/06/2021 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average limit is 20 mg/L and reported value was 24.5 mg/L at EFF-001. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
N |
1088163 |
02/28/2021 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 15 mg/L and reported value was 20 mg/L at EFF-001. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
N |
1086903 |
01/31/2021 |
CAT1 |
Ammonia, Total (as N) Monthly Average (Mean) limit is 1.6 mg/L and reported value was 2.8 mg/L at EFF-001. |
Violation |
N |
eSMR |
Mt. View Sanitary District WWTP |
406134 |
R2-2016-0023 |
Y |
1086902 |
01/27/2021 |
CAT1 |
Ammonia, Total (as N) Daily Maximum limit is 4.7 mg/L and reported value was 4.8 mg/L at EFF-001. |
Violation |
N |
eSMR |
Mt. View Sanitary District WWTP |
406134 |
R2-2016-0023 |
Y |
1086900 |
01/31/2021 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 540 MPN/100 mL at EFF-001. |
Violation |
N |
eSMR |
St. Helena City WWTP |
404297 |
R2-2016-0003 |
Y |
1082122 |
10/17/2020 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 67.83 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1082121 |
10/10/2020 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 57.57 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1082120 |
10/03/2020 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average (Mean) limit is 45 mg/L and reported value was 49 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1082119 |
10/24/2020 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 47.86 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1082118 |
10/17/2020 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 64.29 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1082117 |
10/31/2020 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 48.87 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1082116 |
10/31/2020 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 48.59 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1082115 |
10/10/2020 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 56.29 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1080763 |
09/30/2020 |
CAT1 |
Ammonia, Total (as N) Monthly Mean limit is 32 mg/L and reported value was 34.63 mg/L at EFF-001. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1080762 |
09/30/2020 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Mean limit is 30 mg/L and reported value was 31.62 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1080748 |
09/16/2020 |
Deficient Monitoring |
No pH readings for minimum and maximum were recorded September 16 through 17. |
Violation |
N |
eSMR |
Sonoma Valley County SD WWTP |
432957 |
R2-2019-0019 |
N |
1080747 |
09/15/2020 |
Deficient Monitoring |
Daily flow readings for Effluent Flow and Peak Flow were not recorded September 15 through 17. The reported flow readings are shown as 0. All effluent flow was diverted to EQ #3. |
Violation |
N |
eSMR |
Sonoma Valley County SD WWTP |
432957 |
R2-2019-0019 |
N |
1080746 |
09/16/2020 |
Deficient Monitoring |
No Total Coliform sampled September 16 through 17. |
Violation |
N |
eSMR |
Sonoma Valley County SD WWTP |
432957 |
R2-2019-0019 |
N |
1080745 |
09/16/2020 |
Deficient Monitoring |
No Total Residual Chlorine Instantaneous Maximum was recorded September 16 through 17. |
Violation |
N |
eSMR |
Sonoma Valley County SD WWTP |
432957 |
R2-2019-0019 |
N |
1080744 |
09/15/2020 |
Deficient Monitoring |
Daily flow readings for Influent Flow and Peak Flow into the plant were not recorded September 15 through 17 while generator and PG&E power were unavailable. For these days, the reported influent flow readings were estimated using the average of five days prior and five days after the event. |
Violation |
N |
eSMR |
Sonoma Valley County SD WWTP |
432957 |
R2-2019-0019 |
N |
1079928 |
08/15/2020 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average (Mean) limit is 45 mg/L and reported value was 49.71 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1079927 |
08/31/2020 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average (Mean) limit is 30 mg/L and reported value was 32.29 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1079926 |
08/31/2020 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average (Mean) limit is 30 mg/L and reported value was 31.39 mg/L at EFF-002. |
Violation |
N |
eSMR |
West County Agency Outfall |
428795 |
R2-2019-0003 |
Y |
1075047 |
04/12/2020 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Single Sample Maximum limit is 2 TUc and reported value was 4.6 TUc at EFF-001. |
Violation |
N |
eSMR |
Sonoma Valley County SD WWTP |
432957 |
R2-2019-0019 |
N |
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