| 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. |
| 1152338 |
12/17/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Pump Station Failure - Controls caused 500 gallons of sewage to spill from Manhole at 4025 W MAIN ST to Unpaved Surface |
Violation |
None |
SSO |
Turlock CS |
301547 |
2022-0103-DWQ |
N |
| 1142434 |
03/23/2025 |
Order Conditions |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
N |
| 1142433 |
03/22/2025 |
Order Conditions |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
N |
| 1142432 |
03/21/2025 |
Order Conditions |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
N |
| 1142431 |
03/20/2025 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
N |
| 1142430 |
03/19/2025 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
N |
| 1142429 |
03/18/2025 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
N |
| 1132891 |
08/09/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. *** MMP Exempt Reason:Recycled Water limitation is not subject to MMPs. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1132890 |
08/06/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. *** MMP Exempt Reason:Recycled Water limitation is not subject to MMPs. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1132889 |
08/05/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. *** MMP Exempt Reason:Recycled Water limitation is not subject to MMPs. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1129978 |
06/06/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. *** MMP Exempt Reason:Recycled Water limitation is not subject to MMPs. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1129977 |
06/05/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at REC-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1128845 |
03/22/2022 |
Order Conditions |
Based on the influent calibration records, the annual calibration of the influent Parshall flumes was overdue, as it is required on 20 January 2022. According to MRP Provision I.D of the WDRs, ?Appropriate flow measurement devices and methods consistent with accepted scientific practices shall be selected and used to ensure the accuracy and reliability of measurements of the volume of monitored discharges. All monitoring instruments and devices used by the Discharger to fulfill the prescribed monitoring program shall be properly maintained and calibrated as necessary, at least yearly, to ensure their continued accuracy. All flow measurement devices shall be calibrated at least once per year to ensure continued accuracy of the devices.? |
Violation |
None |
Inspection |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
| 1128844 |
03/22/2022 |
Order Conditions |
During the inspection, it was discovered that one of the UV module?s bulbs exceeded the manufacture?s recommended hours, 12,000 run hours, by 471 hours. According to the Standard Provision I.D, ?The Discharger shall, at all times, properly operate and maintain all facilities and systems of treatment and control (and related appurtenances) which are installed or used by the Discharger to achieve compliance with the conditions of this Order.? According to the Discharger, it was due to an oversight and the Discharger will replace the bulbs and update the Standard Operating Procedures (SOPs) to ensure the bulbs not exceeding the recommended hours in the future. |
Violation |
None |
Inspection |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
| 1118209 |
05/09/2023 |
Deficient Monitoring |
On 9 May 2023, TRWQCF staff did not conduct field analysis for the plant influent (INF-001) pH grab resulting in deficient monitoring. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
N |
| 1116095 |
03/03/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1113413 |
01/08/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001. |
Violation |
N |
eSMR |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1112891 |
10/14/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 3 MPN/100 mL at EFF-001. |
Violation |
N |
Report |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1112890 |
09/04/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4 MPN/100 mL at EFF-001. |
Violation |
N |
Report |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
Y |
| 1112012 |
07/31/2022 |
CAT2 |
Dibromochloromethane Monthly Average limit is 19 ug/L and reported value was 19.9 ug/L at EFF-001A. |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
| 1107226 |
01/09/2022 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001. |
Violation |
N |
Report |
Turlock City, Turlock Regional Water Quality Control Facility |
442540 |
R5-2021-0005 |
N |
| 1105756 |
05/29/2022 |
Deficient Monitoring |
The eSMR is missing a required results for BOD at locations INF-001 and EFF-001B for May 29, 2022. The Laboratory missed the readback time for BOD and the results for the batch were deemed unreportable. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
| 1103440 |
03/18/2022 |
Order Conditions |
The eSMR does not include required results for BOD at location INF-001B for March 18, 20, and 21 and also at location EFF-001B for March 20, and 21, 2022 due to QC failures. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
| 1103439 |
02/01/2022 |
Order Conditions |
In February 2022 it was discovered that the UV lamps in bank 1B of phase II were 471 hours over the manufacturer¿s specifications of 12,000 run hours. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
| 1102742 |
02/03/2022 |
Order Conditions |
The eSMR does not include required results for BOD at location INF-001B and EFF-001B for February 3, 2022 due to an instrumentation programming failure, as well as a procedural breakdown during initial set up in the City laboratory. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
| 1101265 |
01/17/2022 |
OEV |
Total Coliform Instantaneous Maximum limit is 240 MPN/100 mL and reported value was 540 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
| 1099777 |
12/21/2021 |
Deficient Monitoring |
The eSMR does not include required results for BOD at locations INF-001 and EFF-001B for December 21 ¿ 23, 2021. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
| 1097361 |
10/23/2021 |
CAT2 |
Chlorine, Total Residual 4-Day Average (Mean) limit is 0.011 mg/L and reported value was .042 mg/L at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
| 1097360 |
10/23/2021 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.019 mg/L and reported value was 4.042 mg/L at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
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