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. |
1143719 |
04/07/2025 |
Order Conditions |
The eSMR contains a pH reading result over the permitted 9.0 SU limit at location STO-002 on April 07, 14, 21, and 28 2025. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1142678 |
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 EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1142677 |
03/23/2025 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1142676 |
03/22/2025 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1142675 |
03/21/2025 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1142674 |
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 EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1142673 |
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 EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1141762 |
02/03/2025 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.019 mg/L and reported value was .125 mg/L at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1140652 |
01/11/2025 |
Deficient Monitoring |
The eSMR is missing a required result for Total Coliform at location UVS-001A for January 11, 2024. A City laboratory analyst confused the in-progress test tubes for samples collected on January 11, for completed analysis test tubes and the samples were discarded mid test. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1139594 |
12/17/2024 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.019 mg/L and reported value was 0.201 mg/L at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1139593 |
12/31/2024 |
Order Conditions |
The eSMR contains a pH reading result over the permitted 9.0 SU limit at location IRR-FOR on December 02, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1137943 |
11/30/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on November 04, and 11, 2024 and at location STO-002 on November 04, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1136691 |
10/30/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on October 14, 21, and 28, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1135088 |
09/09/2024 |
Deficient Monitoring |
The eSMR does not include a required result for electrical conductivity at location CAN-SEG for the week of September 09. A sample was collected by operations staff on September 09, 2024. The sample was left with the City of Modesto laboratory for analysis. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1135087 |
09/02/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 September 02, 09, 23 and 30, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1133870 |
05/30/2024 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Debris from Lateral, Debris-wipes/Non-disposables caused 54 gallons of sewage to spill from Manhole at 1337 Claus Rd. to Drainage Conveyance System that discharges to surface water, Street/Curb and Gutter (2 3), Surface Water |
Violation |
None |
SSO |
Modesto CS |
301505 |
2022-0103-DWQ |
N |
1132991 |
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 EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1132990 |
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 EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1132989 |
08/08/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1132988 |
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 EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1132987 |
08/08/2024 |
Deficient Monitoring |
The eSMR does not include a required result for Sodium at location INF-001. A sample was collected by operations staff on August 8, 2024. The sample was left at the City of Modesto Laboratory to be sent to a contract laboratory. The sample for Sodium was lost and did not make it to the contract laboratory for analysis. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1132986 |
08/05/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-001 on August 05, and 19, 2024, at location STO-002 August 05, 19, and 26, 2024, and at location IRR-FOR on August 26, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1132652 |
02/02/2024 |
Deficient Monitoring |
City of Modesto: The Discharger failed to monitor effluent pH for 2 February 2024. |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1131503 |
07/01/2024 |
CAT1 |
Ammonia, Total (as N) Weekly Average (Mean) limit is 4.1 mg/L and reported value was 5.4 mg/L at EFF-001B. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1131502 |
07/08/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on July 08, 15, and 22, 2024, at location STO-001 July 8, 22, and 29, 2024, and at location IRR-FOR on July 22, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1130196 |
06/07/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1130195 |
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 EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1130194 |
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 EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1130193 |
06/03/2024 |
Deficient Monitoring |
The eSMR does not contain the required results for Total Dissolved Solids (TDS) at Location IRR-FOR June 03 and 10, 2024 and at location INF-001 on June 05, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1130192 |
06/03/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on June 03, 10, 17, and 24, 2024 and at location IRR-FOR on June 03, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1128962 |
05/06/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on May 13, and 27, 2024 and at location IRR-FOR on May 06, 08, and 13, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1128846 |
05/16/2024 |
Order Conditions |
Board staff received several odor complaints regarding the Sutter Plant in 2023 and 2024. During the inspection, Board staff investigated the area from which the complaints originated, spanning from Ustick Rd to Carter Ave and continuing through Carter Ave to Dallas St. While walking through this area, the odor was particularly noticeable, especially at the intersections of Ustick Rd and Carter Ave, as well as Carter Ave and Bollinger Ct. According to the Discharger, efforts are actively underway to identify and eliminate the source of the odor. The Discharger mentioned during the inspection that it is working with its consultant to develop a workplan that will identify the source of the odor and outline recommendations to eliminate it. According to WDRs 99-112 Provision B.6, ?objectionable odor originating at this facility shall not be perceivable beyond the limits of the disposal areas, wastewater transmission lines, or property owned by the Discharger.? Additionally, WDRs R5-2017-0085-002 Provision VII.C.4.c.v requires that objectionable odors shall not be perceivable beyond the limits of the facility. Since Board staff identified objectionable odors outside the Facility?s boundaries during the inspection, in violation of WDRs 99-112 and WDRs R5-2017-0085-002. |
Violation |
None |
Inspection |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
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 |
1128122 |
04/01/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on April 01, and 29, 2024 and at location IRR-FOR on April 08, 16, and 23, 2024. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1126535 |
03/04/2024 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on March 18, and 26, 2024 and at location IRR-FOR on March 04, 11, 18, and 26, 2024 |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1124652 |
01/27/2024 |
Deficient Monitoring |
The eSMR is missing a required result for Total Coliform on January 27, 2024 at location UVS-002A. Both Phase I and II discharge were in bypass mode for the day at the direction of operations management. Operations staff mistakenly discharged from Phase II for a total of ten minutes in the afternoon; equating to 0.24 MGD discharge, as indicated in attachment B of the eSMR, without collecting a sample for Total Coliform as required by the permit. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1122293 |
10/02/2023 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on October 02, 09, and 23, 2023 and at location IRR-FOR on October 16, 2023. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1121383 |
09/11/2023 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on September 11, 18, and 25, 2023. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1120786 |
08/14/2023 |
Order Conditions |
The eSMR contains a pH reading result over the permitted 9.0 SU limit at location STO-002 on August 14, 2023. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1120762 |
12/31/2022 |
Deficient Reporting |
In the 2022 Annual Land Application Activities Report, the Discharger initially indicated that cation exchange capacity (CEC) data would be found in Appendix B. However, upon closer examination of the data, it was determined that the Discharger did not report CEC data. |
Violation |
N |
Report |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1119754 |
07/03/2023 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on July 03, 10, 17 and 31, 2023. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1118973 |
06/05/2023 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on June 5 and 19, 2023 and at location STO-002 on June 12, 19 and 26, 2023. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1118269 |
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 |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1118268 |
05/28/2023 |
Deficient Reporting |
The eSMR is missing a required result at location INF-001 for Conductivity for the week of May 28, 2023. A mix up within the City laboratory led to the sample being discarded before being analyzed. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1118267 |
05/01/2023 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on May 01 and 23, 2023 and at location STO-002 on May 01, 2023. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1118266 |
05/28/2023 |
Deficient Reporting |
The eSMR is missing a required result at location INF-001 for Conductivity for the week of May 28, 2023. A mix up within the City laboratory led to the sample being discarded before being analyzed. |
Violation |
N |
eSMR |
City of Modesto WQCF |
448536 |
R5-2023-0025 |
N |
1117512 |
04/17/2023 |
Deficient Monitoring |
On 17 April 2023, the continuous monitoring equipment located at the TRWQCF effluent monitoring station (EFF-001A) was left in hold after routine analyzer maintenance. Unfortunately, both the monitoring analyzers for total chlorine residual and the dechlorination agent was left in hold for 2.5 hours resulting in deficient monitoring with the total residual effluent limitation. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1117510 |
05/03/2023 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on April 03 and 17, 2023. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1116037 |
03/03/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1116030 |
03/06/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 5 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1116029 |
03/28/2023 |
Order Conditions |
The eSMR contains a maximum turbidity result over the 0.5 NTU permitted limit. On March 28, 2023 at 04:57:48, the in-line turbidity meter at location UVS-002 reached a result of 0.18 NTU. This result triggered an automatic bypass of the phase II system. In the time it took for the bypass gate to fully close (ten seconds) the in-line meter had spiked at the reported maximum of 2.82 NTU. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1116026 |
03/08/2023 |
Order Conditions |
Upon review of the monitoring data submitted by the City of Turlock, there were instances of effluent turbidity exceeding WDRs? prescribed limits. Specifically, during the month of February 2023, the effluent turbidity exceeded the limit for 11 days. For the month of March 2023, the effluent turbidity exceeded the limit for 18 days. These effluent turbidity excursions ranged between 3 NTUs and 5 NTUs which is violation of WDRs. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115106 |
02/10/2023 |
Deficient Monitoring |
The eSMR is missing a required pH grab result from location EFF-001B on February 10, 2023. Operations staff in charge of samples on February 10th believed the plant to be in full bypass and not discharging to receiving water. This lead the operator collecting samples to not take the grab pH sample at location EFF-001B required by the permit. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115105 |
02/28/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 4 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115104 |
02/27/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 4 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115103 |
02/20/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115102 |
02/19/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115101 |
02/26/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115100 |
02/22/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115099 |
02/28/2023 |
Order Conditions |
Turbidity Other limit is 5 NTU and reported value was 5 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1115098 |
02/21/2023 |
Order Conditions |
Upon review of the monitoring data submitted by the City of Turlock, there were instances of effluent turbidity exceeding WDRs? prescribed limits. Specifically, during the month of February 2023, the effluent turbidity exceeded the limit for 11 days. For the month of March 2023, the effluent turbidity exceeded the limit for 18 days. These effluent turbidity excursions ranged between 3 NTUs and 5 NTUs which is violation of WDRs, see Table A below for list of violations. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1113987 |
01/08/2023 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1113986 |
01/15/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 3.7 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
Y |
1112853 |
12/05/2022 |
Deficient Monitoring |
The eSMR is missing required Ammonia results from location EFF-001B for the weeks of December 5 and December 12, 2022. Staff turnover in the City laboratory led to the samples not being sent to the contracted laboratory as needed. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
1112014 |
08/21/2022 |
Order Conditions |
Turbidity instantaneous maximum limit is 0.5 NTU and reported value was 4.6 NTU at UVS-001A. |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
448440 |
R5-2022-0034 |
N |
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 |
1111483 |
11/14/2022 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on November 14, and 21, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1110852 |
10/10/2022 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on October 10, 17, and 24, 2022 as well as at location IRR-FOR on October 10, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1109709 |
09/05/2022 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on September 5, 12, 19, and 26, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1108833 |
08/08/2022 |
Order Conditions |
The eSMR contains pH reading results outside of the permitted 6.0 - 9.0 SU range limit at location STO-002 on August 8, 15, 22, and 29, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1107642 |
07/04/2022 |
Order Conditions |
The eSMR contains pH reading results outside of the permitted 6.0 - 9.0 SU range limit at location IRR-FOR on July 4,11, and 18, 2022; at location STO-002 on July 11 and 18, 2022; and at location CAN-SEG on July 25, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1107641 |
07/17/2022 |
Deficient Monitoring |
The eSMR does not include a required Chloride result at location CAN-SEG for The week beginning August 17, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1106606 |
06/06/2022 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on June 6,13,20,22 and 27, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
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 |
1105755 |
05/08/2022 |
Deficient Monitoring |
The eSMR does not include required monitoring at location IRR-FOR for the week ending May 14, 2022. Laboratory staff were instructed to discard samples taken on May 9 as there was no irrigation on that day. However, operations staff did not account for irrigation that took place on Sunday May 8 and neglected to take the required weekly samples required. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1105754 |
05/02/2022 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on May 2,9,16,23 and 30, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1105753 |
05/29/2022 |
Deficient Monitoring |
The eSMR is missing a required result for BOD at location INF-001 for May 29, 2022. The Laboratory missed the readback time for BOD and the results for the batch were deemed unreportable. |
Violation |
N |
eSMR |
City of Modesto WQCF |
413899 |
R5-2017-0064 |
N |
1104686 |
04/20/2022 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on April 20 and 25, 2022. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1103643 |
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 |
City of Modesto WQCF |
413899 |
R5-2017-0064 |
Y |
1103642 |
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 |
City of Modesto WQCF |
413899 |
R5-2017-0064 |
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 |
1103438 |
03/18/2022 |
Order Conditions |
The eSMR does not include required results for BOD at location INF-001 for March 18, 20, and 21, 2022 due to QC failures. |
Violation |
N |
eSMR |
City of Modesto WQCF |
413899 |
R5-2017-0064 |
N |
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 |
1102709 |
02/03/2022 |
Order Conditions |
The eSMR does not include required results for BOD at location INF-001 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 |
City of Modesto WQCF |
413899 |
R5-2017-0064 |
N |
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 |
1099778 |
12/21/2021 |
Deficient Monitoring |
The eSMR does not include required results for BOD at location INF-001 for December 21 ¿ 23, 2021. |
Violation |
N |
eSMR |
City of Modesto WQCF |
413899 |
R5-2017-0064 |
N |
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 |
1099619 |
09/23/2021 |
Order Conditions |
On 23 September 2021, the Discharger reported that at approximately 2:30 PM while pumping raw wastewater from the clarifier to fill digester #1, the hose connection from the pump to the digester separated allowing the wastewater to spill on the Facility?s ground. According to the Discharger some of the wastewater was absorbed into the grass area around the clarifiers and most of the wastewater made it to the overflow basin and drying bed #1, all the spill water was contained in the Facility?s ground. The Discharger estimated that a total of 375,000 gallons of wastewater was spilled during this incident. |
Violation |
None |
Report |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1099618 |
08/11/2021 |
Order Conditions |
On 11 August 2021, the Discharger reported that a leak was discovered in cannery segregation line that runs between the Sutter Plant and the Jennings Plant. The leak was discovered coming up from the levee road and running into the drying bed at approximately 50 gallons per minute. The Discharger inspected and confirmed that the Tuolumne River side of the line is no leaking and no spill made it to the Tuolumne River. The Discharger estimated that a total of 10,000 gallons of wastewater was spilled during this incident. |
Violation |
None |
Report |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1099617 |
07/01/2021 |
Order Conditions |
On 1 July 2021, the Discharger reported that one of its operation staff mistakenly opened a valve (DRY-SG9) at the Dryden Box Influent Structure, believing it to be necessary to divert cannery segregation water to the Pumping Plant #3. Instead, the valve was for the emergency diversion structure with the Dryden influent structure (distribution box for cannery segregation and domestic flows). Because of this the domestic wastewater mixed with the cannery segregation water and flow in to Pumping Plant #3 and ultimately discharged to the Jennings Ranch. Once the incident was discovered by the Discharger it immediately closed valve DRY-SG9. According to the Discharger, approximately 3 million gallons of domestic wastewater was sent, and land applied to the Jennings Ranch. |
Violation |
None |
Report |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1099616 |
06/16/2021 |
Order Conditions |
On 16 June 2021, the Discharger reported that a partially treated wastewater used for irrigation spilled to into the slough adjacent to Filed #16. According to the Discharger, due to an error the operator released more water than originally agreed upon. As result, the partially treated wastewater filled the filed up to the berm and entering gopher holes and exiting holes on the opposite side of the dirt road and then flowing into the slough. Approximately a total of 28,500 gallons of partially treated water discharged into the slough. |
Violation |
None |
Report |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1099615 |
05/11/2021 |
Order Conditions |
On 11 May 2021, the Discharger reported that an operator accidentally opened a winterizing valve on one of the tailwater pump stations that leads to the onsite slough. According to the Discharger, it recaptured the spill and returned it to the pond/irrigation system. Approximately a total of 6,300 gallons of water discharged and recaptured and returned to the Facility. |
Violation |
None |
Report |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
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 |
1097359 |
10/11/2021 |
Order Conditions |
The eSMR contains a pH reading result over the permitted 9.0 SU limit at location STO-002 on October 11, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1096032 |
10/30/2021 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Construction Diversion Failure caused 211650.0 gallons of sewage to spill from Manhole;NA at Beard Brook Park to Surface Water;Contractor plugged line to make repairs downstream and didn''t notice that sewer was overflowing from this manhole.. Surface water body affected (Dry Creek / Tuolumne River). |
Violation |
N |
SSO |
Modesto CS |
301505 |
2022-0103-DWQ |
Y |
1095771 |
09/06/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on September 6, 2021 and at location IRR-FOR on September 27, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1095650 |
10/24/2021 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Flow Exceeded Capacity (Separate CS Only) caused 211654.0 gallons of sewage to spill from Manhole;NA at Beard Brook Park to Surface Water. Surface water body affected (Dry Creek). |
Violation |
N |
SSO |
Modesto CS |
301505 |
2022-0103-DWQ |
Y |
1094789 |
08/09/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on August 9, 23, and 30 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1093909 |
02/08/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1093908 |
02/07/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1093907 |
02/06/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 4 NTU at EFF-001A. |
Violation |
None |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1093906 |
02/05/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 4 NTU at EFF-001A. |
Violation |
None |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1093905 |
02/04/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 4 NTU at EFF-001A. |
Violation |
None |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1093904 |
02/03/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 4 NTU at EFF-001A. |
Violation |
None |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1093903 |
02/02/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 4 NTU at EFF-001A. |
Violation |
None |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1093902 |
02/01/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 4 NTU at EFF-001A. |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1093663 |
07/05/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on July 5, 2021 and at location STO-002 on July 5, 12, and 19, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1092661 |
06/01/2021 |
Order Conditions |
On June 1, 2021 at 17:43 a lap in one of the UV vessels hit 12,000 run hours. This went un-noticed until June 2, 2021 at 09:43. During that 16-hour window the flow through the vessel was 635,889 gallons. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1092660 |
06/07/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR and STO-002 on June 7, 14, 21, and 28, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1091369 |
05/03/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on May 3, 5, 24, and 31, 2021 and also at location STO-002 on May 17, 24, and 31, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1090688 |
04/05/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on April 5, 7, and 26, 2021 and also at location STO-002 on April 5, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1090687 |
04/29/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090686 |
04/15/2021 |
CAT1 |
Aluminum, Total Monthly Average limit is 330 ug/L and reported value was 373 ug/L at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1090685 |
04/04/2021 |
Deficient Monitoring |
The eSMR does not include required weekly results for conductivity at locations DMC-001 and DMC-002 for the week of April 4, 2021. Though the required samples were collected, an error within the laboratory caused them to be discarded before analysis. Discovery of the processing error did not occur until after the week had ended, making resample impossible. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090684 |
04/26/2021 |
Order Conditions |
Turbidity Annual Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090683 |
04/23/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090682 |
04/22/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 6 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090681 |
04/21/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 8 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090680 |
04/22/2021 |
Order Conditions |
Turbidity Instantaneous Maximum limit is 10 NTU and reported value was 10 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090679 |
04/21/2021 |
Order Conditions |
Turbidity Instantaneous Maximum limit is 10 NTU and reported value was 10 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090678 |
04/15/2021 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1090677 |
04/17/2021 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1090676 |
04/13/2021 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1090675 |
04/16/2021 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1090674 |
04/27/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090673 |
04/21/2021 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.019 mg/L and reported value was 0.170 mg/L at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1090672 |
04/28/2021 |
Order Conditions |
Turbidity Annual Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090671 |
04/14/2021 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1090670 |
04/20/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1090669 |
04/19/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
N |
1089466 |
03/01/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on March 1, 8, 15, 22 and 29, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1089327 |
11/30/2020 |
Deficient Reporting |
The Discharger failed to report dissolved oxygen and pH for monitoring location IRR-FOR for the week of November 2020. |
Violation |
N |
Report |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1088690 |
12/21/2020 |
Surface Water |
According to the WDRs Provision V.A.15, ¿The natural temperature to be increased by more than 5°F. Compliance to be determined based on the difference in temperature at Monitoring Locations DMC-001 and DMC-002.¿ On 21 December 2020, the effluent caused the receiving water temperature to increase 6.5°F, which a violation of WDRs (CIWQS Violation ID #). |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1088689 |
01/09/2021 |
CAT1 |
Total Suspended Solids (TSS) Daily Maximum limit is 2400 lb/day and reported value was 3175 lb/day at EFF-001B. |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1088688 |
01/05/2021 |
CAT1 |
Total Suspended Solids (TSS) Daily Maximum limit is 20 mg/L and reported value was 39 mg/L at EFF-001B. |
Violation |
N |
Report |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1088226 |
02/12/2021 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.019 mg/L and reported value was 0.065 mg/L at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1088225 |
02/08/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on February 8, 15 and 22, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1086921 |
01/11/2021 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on January 11, 18 and 25, 2021. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1086918 |
01/13/2021 |
Order Conditions |
Turbidity Instantaneous Maximum limit is 10 NTU and reported value was 10 NTU at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1085182 |
12/07/2020 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location IRR-FOR on December 7th and 21st, 2020. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1083368 |
11/21/2020 |
OEV |
Total Coliform Instantaneous Maximum limit is 240 MPN/100 mL and reported value was 1600 MPN/100 mL at EFF-001A. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1083367 |
11/02/2020 |
Order Conditions |
The eSMR contains pH reading results over the permitted 9.0 SU limit at location STO-002 on November 2, 9, 16, 23 and 30, 2020. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1082168 |
10/06/2020 |
Deficient Monitoring |
The eSMR for October 2020 does not include Flow results at location INF-001 from October 6-7, 2020. The City of Modesto¿s Ignition SCADA system had an issue with the vendor database server on October 6th, 2020, which interrupted data collection. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1082167 |
10/06/2020 |
Deficient Monitoring |
The eSMR for October 2020 does not include Flow results at location INF-001 from October 6-7, 2020. The City of Modesto¿s Ignition SCADA system had an issue with the vendor database server on October 6th, 2020, which interrupted data collection. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1082166 |
10/06/2020 |
Deficient Monitoring |
The eSMR for October 2020 does not include Flow results at location INF-001 from October 6-7, 2020. The City of Modesto¿s Ignition SCADA system had an issue with the vendor database server on October 6th, 2020, which interrupted data collection. |
Violation |
N |
eSMR |
City of Modesto WQCF |
413899 |
R5-2017-0064 |
Y |
1080615 |
09/07/2020 |
Order Conditions |
The City experienced pH readings over the 9.0 SU limit at location STO-002 on September 7, 14, and 28, 2020. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
N |
1079941 |
08/03/2020 |
Order Conditions |
The City experienced pH readings over the 9.0 SU limit at location STO-002 on August 3 and 31, 2020. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
1078916 |
07/06/2020 |
Deficient Monitoring |
The eSMR is missing a result for BOD, TSS and Hardness at location EFF-001B for July 6, 2020. The composite sampler at the site suffered a malfunction overnight leaving little volume that was not representative of the discharge. |
Violation |
N |
eSMR |
North Valley Regional Recycled Water Program - Modesto WWTP & Turlock RWQCF |
405123 |
R5-2016-0010 |
Y |
1078914 |
07/06/2020 |
Order Conditions |
The City experienced pH readings over the 9.0 SU limit at location IRR-FOR on July 7, and 13, 2020 and at location STO-002 on July 6, 13, and 27, 2020. The City also experienced a pH reading under the 6.0 limitation at location CAN-SEG on July 27, 2020. |
Violation |
N |
eSMR |
Modesto WQCF WW Land Disposal (secondary trtmt) |
147127 |
99-112 |
Y |
Report currently showing last five years of violations. Click here to return to viewing one year of violations. Refer to the Interactive Violation Report for more data.
|