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. |
1142254 |
03/24/2025 |
Deficient Monitoring |
On April 2nd, the City was notified by Eurofins lab that Calscience experienced BOD LCS failure from their batch due to algal growth and debris in the seed line and syringe pump. This failure affected the March 24th WRF No. 1 weekly influent BOD sample. |
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 at M-001. |
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/L at M-001. |
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 from Manhole at Lincoln Ave & Fallbrook Dr to Surface Water,Street/Curb and Gutter (2 3),Paved Surface,Unpaved Surface |
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 7.10 ug/L at M-001. |
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, that the CalScience sub-laboratory had been experiencing contamination issues with one of their BOD instruments and have had failing Unseeded Control Blank and Laboratory Control Samples. They have been working on mitigating the issue by ordering new parts to replace instrument tubing and to conduct decontamination cleanups. Samples impacted include WRF No. 3 weekly influent and effluent BOD samples collected on July 3rd. Impacted samples with results that did not align with historical values were reanalyzed past hold time for result confirmation. A corrective action report was requested for these samples and is included in this report. |
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 value was 5.5 ug/L at M-001. |
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, Eurofins Drinking Water Testing (Eurofins), that all November 25th samples collected by the Eurofins field technician were not preserved on ice and are not valid for compliance. This includes the WRF No. 3 effluent total coliform sample. |
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 at M-001. |
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/L at M-001. |
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 at M-001. |
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/L at M-001. |
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 value was 15 ug/L at M-001. |
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 was 15 ug/L at M-001. |
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 M-001. |
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 0.0021 ug/L at M-001. |
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 18 ug/L at M-001. |
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 18 ug/L at M-001. |
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. The City was not notified and the lab missed resampling for this. Lab confirmed volume from TSS from 8/31 to run ammonia nitrogen, but data would not be valid for compliance. |
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 value was 61 ug/L at M-001. |
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 was 61 ug/L at M-001. |
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 value was 9.1 ug/L at M-001. |
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-001. |
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-001. |
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-001. |
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-001. |
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 MPN/100 mL at M-001. |
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 M-001. |
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 at M-001. |
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-001. |
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 M-001. |
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 at M-001. |
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 at M-001. |
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 M-001. |
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 ug/L at M-001. |
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 ug/L at M-001. |
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 at M-001. |
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 at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
1080706 |
09/15/2020 |
CAT2 |
Heptachlor Epoxide Daily Maximum limit is 0.00022 ug/L and reported value was 0.0076 ug/L at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
1080705 |
09/15/2020 |
CAT2 |
Heptachlor Epoxide Monthly Average limit is 0.00011 ug/L and reported value was 0.0076 ug/L at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
Y |
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