| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1109549 |
05/31/2022 |
CAT2 |
Copper, Total Recoverable Monthly Average limit is 7 ug/L and reported value was 49 ug/L. |
The Discharger will implement the following measures:
1. Copies of field sheets, self-monitoring reports and lab reports will be analyzed by the QA/QC officer and an additional staff scientist to prevent transcription errors during the reporting period.
2. The discharger is investigating if any system components could have caused copper to appear in the effluent water. If any components are determined to have been the causing, they will be removed if possible. |
Violation |
B |
Report |
| 1109551 |
05/16/2022 |
Deficient Reporting |
The discharger failed to report a copper effluent limit violation due to a transcription error made by their staff. The non-compliant effluent concentration was received on May 16, 2022, but it was not reported until July 18, 2022, during a second data review intended to inform the semi-annual SMR corresponding to that period. |
The Discharger will implement the following measures:
1. Copies of field sheets, self-monitoring reports and lab reports will be analyzed by the QA/QC officer and an additional staff scientist to prevent transcription errors during the reporting period.
2. The discharger is investigating if any system components could have caused copper to appear in the effluent water. If any components are determined to have been the causing, they will be removed if possible. |
Violation |
B |
Report |
| 1109550 |
05/03/2022 |
CAT2 |
Copper, Total Recoverable Maximum Daily (MDEL) limit is 14 ug/L and reported value was 49.0 ug/L. |
The Discharger will implement the following measures:
1. Copies of field sheets, self-monitoring reports and lab reports will be analyzed by the QA/QC officer and an additional staff scientist to prevent transcription errors during the reporting period.
2. The discharger is investigating if any system components could have caused copper to appear in the effluent water. If any components are determined to have been the causing, they will be removed if possible. |
Violation |
B |
Report |
| 1097380 |
10/28/2021 |
DMON |
During routine monthly monitoring sampling on October 28, 2021, the Discharger did not collect monthly samples for electrical conductivity, temperature, turbidity, and total dissolved solids as required by the permit. The discharger noticed the error on October 31, 2021, and collected samples for the missing parameters on November 2. The discharger also did not notify the violation to the Water Board within 24 hours. Notification was received on November 5, 2021.
|
To correct the violation, the discharger revisited with its team the monitoring and reporting permit requirements and procedures for confirming and communicating system data required by the permit. Monthly NPDES monitoring will be shifted to earlier in the month to avoid monitoring noncompliance. Additionally copies of field sheets and COCs will be transmitted to the project QA/QC officer on the same day that samples are collected to ensure that requisite sampling has been completed. The monitoring deficiency occurred while the discharger switched consultants. |
Violation |
B |
Report |
| 1097381 |
10/28/2021 |
Failure to Notify |
During routine monthly monitoring sampling on October 28, 2021, the Discharger did not collect monthly samples for electrical conductivity, temperature, turbidity, and total dissolved solids as required by the permit. The discharger noticed the error on October 31, 2021, and collected samples for the missing parameters on November 2. The discharger also did not notify the violation to the Water Board within 24 hours. Notification was received on November 5, 2021. |
To correct the violation, the discharger revisited with its team the monitoring and reporting permit requirements and procedures for confirming and communicating system data required by the permit. Monthly NPDES monitoring will be shifted to earlier in the month to avoid monitoring noncompliance. Additionally copies of field sheets and COCs will be transmitted to the project QA/QC officer on the same day that samples are collected to ensure that requisite sampling has been completed. The monitoring deficiency occurred while the discharger switched consultants. |
Violation |
B |
Report |
| 1077976 |
09/25/2019 |
CAT2 |
1,1,1-Trichloroethane Maximum Daily (MDEL) limit is 0.50 ug/L and reported value was 1.2 ug/L. |
The discharger will increase maintenance frequency to quarterly of air stripper that was found to be the main culprit of the effluent violation. Additionally, it will empty and clean the sump just as frequently to avoid accumulation of organics that may trigger a TPHmo detection. It will develop chart to track flow and pressure performance of air stripper and it will review HiPOx and air stripper components and antiscalant dosing for treatment system. |
Violation |
B |
Report |
| 1077975 |
09/25/2019 |
CAT2 |
1,1-Dichloroethane Maximum Daily (MDEL) limit is 0.50 ug/L and reported value was 0.95 ug/L. |
The discharger will increase maintenance frequency to quarterly of air stripper that was found to be the main culprit of the effluent violation. Additionally, it will empty and clean the sump just as frequently to avoid accumulation of organics that may trigger a TPHmo detection. It will develop chart to track flow and pressure performance of air stripper and it will review HiPOx and air stripper components and antiscalant dosing for treatment system. |
Violation |
B |
Report |
| 1077974 |
09/12/2019 |
CAT2 |
1,1,1-Trichloroethane Maximum Daily (MDEL) limit is 0.50 ug/L and reported value was 0.8 ug/L. |
The discharger will increase maintenance frequency to quarterly of air stripper that was found to be the main culprit of the effluent violation. Additionally, it will empty and clean the sump just as frequently to avoid accumulation of organics that may trigger a TPHmo detection. It will develop chart to track flow and pressure performance of air stripper and it will review HiPOx and air stripper components and antiscalant dosing for treatment system. |
Violation |
B |
Report |
| 1077973 |
09/12/2019 |
CAT2 |
1,1-Dichloroethane Maximum Daily (MDEL) limit is 0.50 ug/L and reported value was 0.7 ug/L. |
The discharger will increase maintenance frequency to quarterly of air stripper that was found to be the main culprit of the effluent violation. Additionally, it will empty and clean the sump just as frequently to avoid accumulation of organics that may trigger a TPHmo detection. It will develop chart to track flow and pressure performance of air stripper and it will review HiPOx and air stripper components and antiscalant dosing for treatment system. |
Violation |
B |
Report |
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Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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