| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1144051 |
04/15/2025 |
Order Conditions |
Oakport WWF: Approximately 21,350 gallons of fully treated effluent was discharged through the outfall to East Creek Slough when the effluent gates did not fully close when staff was operating the plant in practice mode (what EBMUD calls a wet test). The discharge only lasted about 15 minutes since it was quickly discovered and responded to. |
The gate was closed and inspected by EBMUD maintenance personnel. The wet test SOP was updated to require visual inspection of the gate's position prior to starting the test. |
Violation |
B |
Report |
| 1141684 |
02/04/2025 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 350 MPN/100 mL at E-003. *** MMP Exempt Reason:Subject to stipulated penalties under a Consent Decree |
Since the violation was likely caused by a flow restriction at a check valve in a sodium hypochlorite discharge pipe from a tank, maintenance staff took the suspect sodium hypochlorite system check valve apart, cleaned and inspected it, and returned it to service. The flow restriction was no longer present. This check valve is in a temporary piping system built to use while the primary sodium hypochlorite tanks are being replaced. The disinfection system worked as expected in the next discharge and the temporary system is expected to work until the new tanks are in place for next wet season and the temporary system is removed. |
Violation |
B |
eSMR |
| 1112774 |
12/27/2022 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 310 MPN/100 mL at E-001. |
Sampling was accelerated after receiving lab report with violation and returned to normal, compliant levels after this exceedance. Sampling procedures were reviewed to ensure future sampling is representative. |
Violation |
B |
eSMR |
| 1097266 |
10/25/2021 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 160000 MPN/100 mL at E-001. |
The SBS dosing strategy has been updated to avoid overdosing SBS in the future so that sodium hypochlorite dosing does not have to be restricted. Refer to the attached letter within the SMR for additional corrective actions. |
Violation |
U |
eSMR |
| 1097267 |
10/25/2021 |
CAT2 |
Chlorine, Total Residual Daily Maximum limit is 0.0 mg/L and reported value was 3.0 mg/L at E-001. |
The SBS dosing strategy has been updated to avoid overdosing SBS in the future. Refer to the attached letter within the SMR for additional corrective actions. |
Violation |
U |
eSMR |
| 1097263 |
10/24/2021 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 160000 MPN/100 mL at E-001. |
The SBS dosing strategy has been updated to avoid overdosing SBS in the future so that sodium hypochlorite dosing does not have to be restricted. Refer to the attached letter within the SMR for additional corrective actions. |
Violation |
U |
eSMR |
| 1097265 |
10/24/2021 |
OEV |
pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.36 SU at E-001. |
Reduce SBS dosing. SBS can lower pH and the facility was dosing too much at the beginning of this discharge when the pH violation occurred. |
Violation |
U |
eSMR |
| 1097264 |
10/24/2021 |
CAT2 |
Chlorine, Total Residual Daily Maximum limit is 0.0 mg/L and reported value was 5.4 mg/L at E-001. |
The SBS dosing strategy has been updated to avoid overdosing SBS in the future. Refer to the attached letter within the SMR for additional corrective actions. |
Violation |
U |
eSMR |
|
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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