| 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. |
| 1149601 |
10/04/2025 |
Deficient Monitoring |
Our laboratory experienced a power outage on 10/4 and 10/5 which impacted the in |
Violation |
N |
eSMR |
Corona WWRF #3 |
395382 |
R8-2014-0015 |
N |
| 1149600 |
10/04/2025 |
Deficient Monitoring |
Our laboratory experienced a power outage on 10/4 and 10/5 which impacted the in |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1148791 |
09/30/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Other limit is 1.0 TUc and reported value |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1147852 |
08/31/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Other limit is 1 TUc and reported value wa |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1147851 |
08/17/2025 |
CAT1 |
Total Suspended Solids (TSS) High Weekly Average limit is 30 mg/L and reported v |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1146412 |
07/31/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Other limit is 1.0 TUc and reported value |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1145329 |
06/30/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Other limit is 1.0 TUc and reported value |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1142254 |
03/24/2025 |
Deficient Monitoring |
On April 2nd, the City was notified by Eurofins lab that Calscience experienced |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1139469 |
12/03/2024 |
CAT2 |
Dieldrin Daily Maximum limit is 0.00028 ug/L and reported value was 0.013 ug/L a |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1139468 |
12/03/2024 |
CAT2 |
Dieldrin Monthly Average limit is 0.00014 ug/L and reported value was 0.0065 ug/ |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1139352 |
01/24/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Debris-General caused 6600 gallons of sewage to spill fr |
Violation |
None |
SSO |
Corona City CS |
300926 |
2022-0103-DWQ |
N |
| 1138194 |
11/05/2024 |
CAT2 |
Cyanide, Free Available Monthly Average limit is 4.3 ug/L and reported value was |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1131232 |
07/03/2024 |
Deficient Monitoring |
On July 12, 2024, the City was notified by the contract laboratory, Eurofins, th |
Violation |
N |
eSMR |
Corona WWRF #3 |
395382 |
R8-2014-0015 |
N |
| 1128064 |
04/30/2024 |
CAT2 |
Cyanide, Free Available Monthly Average (Mean) limit is 4.3 ug/L and reported va |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1122969 |
11/25/2023 |
Deficient Monitoring |
On November 27, 2023, the City of Corona was notified by the laboratory, Eurofin |
Violation |
N |
eSMR |
Corona WWRF #3 |
395382 |
R8-2014-0015 |
N |
| 1112958 |
12/06/2022 |
CAT2 |
Heptachlor Daily Maximum limit is 0.00042 ug/L and reported value was 0.03 ug/L |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1112957 |
12/06/2022 |
CAT2 |
Heptachlor Monthly Average limit is 0.00021 ug/L and reported value was 0.03 ug/ |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1112956 |
12/06/2022 |
CAT2 |
Dieldrin Daily Maximum limit is 0.00028 ug/L and reported value was 0.0037 ug/L |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1112955 |
12/06/2022 |
CAT2 |
Dieldrin Monthly Average limit is 0.00014 ug/L and reported value was 0.0037 ug/ |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1112164 |
05/16/2022 |
CAT2 |
Bis (2-Ethylhexyl) Phthalate Monthly Average limit is 5.9 ug/L and reported valu |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1112163 |
05/16/2022 |
CAT2 |
Bis (2-Ethylhexyl) Phthalate Daily Maximum limit is 11.8 ug/L and reported value |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1111629 |
11/08/2022 |
CAT2 |
4,4-DDT Daily Maximum limit is 0.0012 ug/L and reported value was 0.0021 ug/L at |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1111628 |
11/08/2022 |
CAT2 |
4,4-DDT Monthly Average (Mean) limit is 0.00059 ug/L and reported value was 0.00 |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1109716 |
09/06/2022 |
CAT2 |
Cyanide, Free Available Daily Maximum limit is 8.5 ug/L and reported value was 1 |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1109714 |
09/06/2022 |
CAT2 |
Cyanide, Free Available Monthly Average limit is 4.3 ug/L and reported value was |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1108843 |
08/02/2022 |
Deficient Monitoring |
Ammonia Nitrogen was collected on 8/2/22 in an improperly preserved container. T |
Violation |
N |
eSMR |
Corona WWRF #3 |
395382 |
R8-2014-0015 |
N |
| 1108842 |
08/13/2022 |
Deficient Monitoring |
8/13/22 TSS sample lost by lab. No data available. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1108839 |
08/02/2022 |
CAT2 |
Bis (2-Ethylhexyl) Phthalate Monthly Average limit is 5.9 ug/L and reported valu |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1108836 |
08/02/2022 |
CAT2 |
Bis (2-Ethylhexyl) Phthalate Daily Maximum limit is 11.8 ug/L and reported value |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1106611 |
06/29/2022 |
CAT2 |
Bis (2-Ethylhexyl) Phthalate Monthly Average limit is 5.9 ug/L and reported valu |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1103488 |
03/29/2022 |
Order Conditions |
WRF No. 3 experienced low chlorine conditions. |
Violation |
N |
eSMR |
Corona WWRF #3 |
395382 |
R8-2014-0015 |
N |
| 1101377 |
01/09/2022 |
OEV |
Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101374 |
01/09/2022 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3.73 NTU at M-00 |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101372 |
01/11/2022 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101370 |
01/08/2022 |
OEV |
Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101369 |
01/12/2022 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101368 |
01/09/2022 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101360 |
01/08/2022 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3.98 NTU at M-00 |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101359 |
01/07/2022 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101354 |
01/10/2022 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3.35 NTU at M-00 |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101349 |
01/11/2022 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 4.74 NTU at M-00 |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101348 |
01/10/2022 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101347 |
01/08/2022 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 9.99 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101346 |
01/11/2022 |
OEV |
Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101342 |
01/07/2022 |
OEV |
Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1101341 |
01/10/2022 |
OEV |
Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1098567 |
11/29/2021 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.1 M |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1098564 |
11/07/2021 |
OEV |
Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1098563 |
11/07/2021 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 11 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1098556 |
11/16/2021 |
OEV |
Turbidity Other limit is 10 NTU and reported value was 11 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1097176 |
10/05/2021 |
CAT2 |
4,4-DDE Daily Maximum limit is 0.0012 ug/L and reported value was 0.0031 ug/L at |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1097174 |
10/05/2021 |
CAT2 |
4,4-DDE Monthly Average limit is 0.00059 ug/L and reported value was 0.0031 ug/L |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1095946 |
09/13/2021 |
OEV |
Turbidity Daily Average (Mean) limit is 2 NTU and reported value was 3 NTU at M- |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1093420 |
07/06/2021 |
CAT2 |
4,4-DDE Daily Maximum limit is 0.0012 ug/L and reported value was 0.0053 ug/L at |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1093419 |
07/06/2021 |
CAT2 |
4,4-DDE Monthly Average limit is 0.00059 ug/L and reported value was 0.0053 ug/L |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1093413 |
07/29/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092631 |
06/19/2021 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 5.50 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092628 |
06/19/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 4 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092627 |
06/20/2021 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 7.16 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092622 |
06/18/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 4 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092616 |
06/21/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092615 |
06/24/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092613 |
06/18/2021 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 5.15 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092612 |
06/20/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 4 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092611 |
06/23/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092609 |
06/22/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1092604 |
06/17/2021 |
OEV |
Turbidity 24-hour Average limit is 2 NTU and reported value was 3 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1089451 |
03/02/2021 |
CAT2 |
4,4-DDE Monthly Average limit is 0.00059 ug/L and reported value was 0.0036 ug/L |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1089450 |
03/02/2021 |
CAT2 |
4,4-DDE Daily Maximum limit is 0.0012 ug/L and reported value was 0.0051 ug/L at |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1089446 |
03/23/2021 |
OEV |
Turbidity Other limit is 5 NTU and reported value was 8.7 NTU at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1088200 |
02/17/2021 |
CAT2 |
4,4-DDE Maximum Daily (MDEL) limit is 0.0012 ug/L and reported value was 0.0054 |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1088198 |
02/17/2021 |
CAT2 |
Dieldrin Maximum Daily (MDEL) limit is 0.00028 ug/L and reported value was 0.004 |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1088197 |
02/17/2021 |
CAT2 |
4,4-DDE Monthly Average limit is 0.00059 ug/L and reported value was 0.0054 ug/L |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
| 1088196 |
02/17/2021 |
CAT2 |
Dieldrin Monthly Average limit is 0.00014 ug/L and reported value was 0.004 ug/L |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
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