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. |
1142091 |
02/04/2025 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 920 MP |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1142088 |
01/06/2025 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 178.9 |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1142087 |
01/09/2025 |
OEV |
pH Instantaneous Maximum limit is 8.5 SU and reported value was 10.04 SU at EFF- |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1142020 |
12/31/2024 |
Deficient Monitoring |
Report did not include groundwater gradient or gradient direction |
Violation |
N |
Report |
Chester STP |
442945 |
R5-2021-0022 |
N |
1141921 |
04/03/2025 |
Order Conditions |
Due to seasonal change and other factors the CWWTP suffered with turbidity for m |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1141283 |
02/13/2025 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 46 MPN |
Violation |
N |
eSMR |
Anderson WPCP |
429568 |
R5-2019-0068 |
N |
1141282 |
02/06/2025 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 41 MPN |
Violation |
N |
eSMR |
Anderson WPCP |
429568 |
R5-2019-0068 |
N |
1141280 |
02/10/2025 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 56 MPN |
Violation |
N |
eSMR |
Anderson WPCP |
429568 |
R5-2019-0068 |
N |
1140127 |
12/31/2024 |
OEV |
Total Coliform Not to exceed a specific limit more than once within any 30-day p |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1140126 |
12/31/2024 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 350 MP |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1140125 |
12/23/2024 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 540 MP |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1140124 |
12/16/2024 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 30 MPN |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1140123 |
12/10/2024 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 33 MPN |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1139914 |
01/31/2025 |
Order Conditions |
The Cottonwood treatment plant had 6 exceedances for turbidity on the following |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1139251 |
12/31/2024 |
Deficient Reporting |
BOD AWEL not reported, TSS AWEL not reported |
Violation |
N |
Report |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1139250 |
11/30/2024 |
Deficient Reporting |
BOD AWEL not reported, TSS AWEL not reported |
Violation |
N |
Report |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1138753 |
12/31/2024 |
Order Conditions |
Turbidity exceeded 2 NTU as a daily average on 12/1 through 12/20 with a 2.9, 3. |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1138657 |
09/16/2024 |
OEV |
Total Coliform 7-Day Median limit is 23.0 MPN/100 mL and reported value was 178 |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1138655 |
07/22/2024 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 170 MP |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1138654 |
07/15/2024 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 33 MPN |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1138653 |
07/01/2024 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 28 MPN |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
N |
1137684 |
12/02/2024 |
Late Report |
Once Only OneTime ( TECHRPT ) (Method of Compliance Work Plan) report for 2024/0 |
Violation |
None |
Report |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1137106 |
11/21/2024 |
OEV |
pH Instantaneous Minimum limit is 6.5 SU and reported value was 6 SU at EFF-001. |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1137105 |
11/30/2024 |
Order Conditions |
Due to heavy rain, high flows, the facility had exceedances in turbidity on 11/8 |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1136406 |
09/20/2024 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is 0.019 mg/L and reported |
Violation |
N |
Report |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1136012 |
11/02/2024 |
Late Report |
Monthly SMR ( MONNPDES ) report for September 2024 (2537863) was due on 01-NOV-2 |
Violation |
None |
Report |
Chester STP |
442945 |
R5-2021-0022 |
Y |
1136011 |
11/02/2024 |
Late Report |
Quarterly SMR ( MONNPDES ) report for Q3 2024 (2537870) was due on 01-NOV-24 |
Violation |
None |
Report |
Chester STP |
442945 |
R5-2021-0022 |
Y |
1134559 |
10/02/2024 |
Late Report |
Monthly SMR ( MONNPDES ) report for August 2024 (2537862) was due on 01-OCT-24 |
Violation |
None |
Report |
Chester STP |
442945 |
R5-2021-0022 |
Y |
1134452 |
07/08/2024 |
CAT2 |
Chlorine, Total Residual 4-Day Average (Mean) limit is 0.011 mg/L and reported v |
Violation |
N |
Report |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1134441 |
09/20/2024 |
CAT2 |
Chlorine, Total Residual 4-Day Average (Mean) limit is 0.011 mg/L and reported v |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1131970 |
09/02/2024 |
Late Report |
Monthly SMR ( MONNPDES ) report for July 2024 (2537861) was due on 01-SEP-24 |
Violation |
None |
Report |
Chester STP |
442945 |
R5-2021-0022 |
Y |
1131960 |
08/31/2024 |
Late Report |
Once Only OneTime ( TECHRPT ) (Initial TRE WorkPlan) report for 2024/05/06 (2869 |
Violation |
None |
Report |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1130909 |
07/08/2024 |
CAT2 |
Chlorine, Total Residual 1-Hour Average (Mean) limit is .019 mg/L and reported v |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1130908 |
07/31/2024 |
Order Conditions |
Turbidity hit of a 2.2 NTU on 7/16/2024 |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1130864 |
08/02/2024 |
Late Report |
Semi-Annual SMR ( MONNPDES ) report for H1 2024 (2869568) was due on 01-AUG-24 |
Violation |
None |
Report |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1130863 |
08/02/2024 |
Late Report |
Semi-Annual SMR ( MONNPDES ) (Progress Reports) report for H1 2024 (2869587) was |
Violation |
None |
Report |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1130249 |
06/30/2024 |
Order Conditions |
Turbidity violation on 6/11, 6/12, 6/16, 6/17, and 6/19 with a 3.6, 2.2, 2.1, 2. |
Violation |
N |
eSMR |
Cottonwood WWTP |
445663 |
R5-2024-0026 |
N |
1129951 |
05/20/2024 |
OEV |
Total Coliform 7-Day Median limit is 23 MPN/100 mL and reported value was 176 MP |
Violation |
N |
Report |
Chico Water Pollution Control Plant |
438991 |
R5-2022-0033 |
Y |
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