| Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
| 1131308 |
07/16/2024 |
DMON |
Contract lab did not run Dichlorobromomethane sample due to preservative issue. a similar issue was reported for Dibromomethane. |
Discussion has been had with the contract lab to emphasize the importance of communication to resample in the future when issues occur and to give the WWTF ample time to resample. The Brentwood WWTF also sampled for both THM constituents twice in the month of August to make up for the missing July sample plus comply with August requirements. |
Violation |
B |
eSMR |
| 1125319 |
02/29/2024 |
CAT2 |
Dibromochloromethane 30-Day Average limit is 34 ug/L and reported value was 040.1 ug/L at EFF-001. |
Switched to alternate basin on 2/14/24 |
Violation |
B |
eSMR |
| 1119822 |
07/26/2023 |
DMON |
A contract laboratory exceeded hold time for analysis of ammonia sample taken on 7/26/23. Therefore, total ammonia results for mg/L and lbs/Day are invalid for the fourth sampling week in July. Results not entered into eSMR, but are attached for review. |
City staff to review sample tracking procedures for contract laboratories. |
Violation |
B |
eSMR |
| 1111387 |
08/31/2022 |
CAT2 |
Dichlorobromomethane Daily Maximum limit is 46 ug/L and reported value was 71 ug/L at EFF-001. |
|
Violation |
B |
Report |
| 1111386 |
08/01/2022 |
CAT2 |
Dichlorobromomethane Daily Maximum limit is 99 ug/L and reported value was 104 ug/L at EFF-001. |
|
Violation |
B |
Report |
| 1097317 |
10/13/2021 |
Order Conditions |
Dissolved Oxygen Instantaneous Minimum limit is 5.5 ml/L ml/L at DO-001. |
Reviewed procedures and discussed with staff |
Violation |
B |
eSMR |
| 1093618 |
07/31/2021 |
CAT1 |
Chloride Monthly Average limit is 344 mg/L and reported value was 360 mg/L at EFF-001. |
Chloride levels are directly related to drinking water supply chloride levels. Increased chloride levels in the Delta (due to drought conditions) cause the wastewater effluent to exceed the permit limitation. The City is unable to control chloride levels in the Delta. |
Violation |
B |
eSMR |
| 1093619 |
07/31/2021 |
CAT2 |
Dichlorobromomethane Monthly Average limit is 46 ug/L and reported value was 47.5 ug/L at EFF-001. |
No action taken as we are under the TSO limit |
Violation |
B |
eSMR |
| 1093096 |
11/30/2020 |
CAT2 |
Dibromochloromethane Monthly Average limit is 34 ug/L and reported value was 39 ug/L at EFF-001. |
|
Violation |
B |
Report |
| 1093095 |
10/30/2020 |
CAT2 |
Dichlorobromomethane Monthly Average limit is 46 ug/L and reported value was 50 ug/L at EFF-001. |
|
Violation |
B |
Report |
| 1082467 |
07/31/2020 |
DMON |
According to MRP Provision IV.A.1, the Discharger is required to monitor the effluent biochemical oxygen demand (BOD) twice a week. For the week ending on 4 July 2020, the Discharger only monitored BOD once. |
|
Violation |
B |
Report |
| 1076826 |
04/30/2020 |
CAT2 |
Dichlorobromomethane Monthly Average limit is 46 ug/L and reported value was 53 ug/L at EFF-001. |
|
Violation |
B |
Report |
| 1072078 |
02/29/2020 |
Surface Water |
RSW-002 temperature for the period of December - February was 66 degrees F. Permit limit is 6 degrees F. |
No action taken. |
Violation |
U |
eSMR |
| 1070146 |
12/20/2019 |
OEV |
pH Instantaneous Maximum limit is 8.5 SU and reported value was 8.7 SU at EFF-001. |
The meter was checked and re-calibrated on the 21st. |
Violation |
U |
eSMR |
|
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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