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. |
1147111 |
09/03/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Pipe Structural Problem/Failure - Controls caused 3600 gallons of sewage to spill from Force Main at Chelsea Hills to Street/Curb and Gutter (2 3) |
Violation |
None |
SSO |
Benicia City CS |
300333 |
2022-0103-DWQ |
N |
1147109 |
09/02/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Pipe Structural Problem/Failure - Controls caused 7200 gallons of sewage to spill from Force Main at Chelsea Hills Force Main to Street/Curb and Gutter (2 3) |
Violation |
None |
SSO |
Benicia City CS |
300333 |
2022-0103-DWQ |
N |
1141888 |
03/15/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Root Intrusion,Debris-General caused 20400 gallons of sewage to spill from Gravity Mainline,Manhole at 1740 Francisca Ct to Drainage Conveyance System that discharges to surface water |
Violation |
None |
SSO |
Benicia City CS |
300333 |
2022-0103-DWQ |
N |
1140469 |
05/27/2024 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.38 mg/L and reported value was 0.95 mg/L at EFF-001. |
Violation |
N |
eSMR |
Benicia WWTP |
435889 |
R2-2019-0034 |
N |
1140063 |
02/02/2025 |
Late Report |
Annual SMR ( MONNPDES ) report for 2024 (2436712) was due on 01-FEB-25 |
Violation |
None |
Report |
Benicia WWTP |
435889 |
R2-2019-0034 |
N |
1133161 |
04/08/2024 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Root Intrusion caused 60 gallons of sewage to spill from Manhole at Rose Dr to Drainage Conveyance System, Street/Curb and Gutter (2 3) |
Violation |
None |
SSO |
Benicia City CS |
300333 |
2022-0103-DWQ |
N |
1133160 |
02/28/2024 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Other (specify below) caused 500 gallons of sewage to spill from Force Main at Chelsea Hills Dr to Drainage Conveyance System that discharges to surface water, Paved Surface, Street/Curb and Gutter (2 3) |
Violation |
None |
SSO |
Benicia City CS |
300333 |
2022-0103-DWQ |
N |
1128933 |
05/27/2024 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.38 mg/L and reported value was 0.43 mg/L at EFF-001. |
Violation |
N |
eSMR |
Benicia WWTP |
435889 |
R2-2019-0034 |
Y |
1128932 |
05/27/2024 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.38 mg/L and reported value was 0.95 mg/L at EFF-001. |
Violation |
N |
eSMR |
Benicia WWTP |
435889 |
R2-2019-0034 |
Y |
1111375 |
11/05/2022 |
Deficient Monitoring |
On November 07, 2022, at approximately 0900 City Water Quality Supervisor was notified by City Laboratory Technician that a pH grab sample was not collected and analyzed for the week of October 30, 2022-November 5, 2022 as required in Benicia's NPDES Permit (No. R2-2019-0034). |
Violation |
N |
eSMR |
Benicia WWTP |
435889 |
R2-2019-0034 |
N |
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