| 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. |
| 1150707 |
12/02/2025 |
CAT2 |
Dieldrin Daily Maximum limit is 0.00028 ug/L and reported value was 0.0066 ug/L at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1150706 |
12/02/2025 |
CAT2 |
Cyanide, Amenable Daily Maximum limit is 8.5 ug/L and reported value was 11 ug/L at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1150705 |
12/02/2025 |
CAT2 |
Dieldrin Monthly Average limit is 0.00014 ug/L and reported value was 0.0066 ug/L at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1150704 |
12/02/2025 |
CAT2 |
Cyanide, Amenable Monthly Average limit is 4.3 ug/L and reported value was 11 ug/L at M-001. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1150108 |
11/04/2025 |
Deficient Reporting |
Samples collected for Job 380-180479-1 (Plant 1 INF-Weekly - Mon/Wed) were analyzed for Biochemical Oxygen Demand by method SM5210B. The laboratory control sample (LCS) prepared with these samples recovered at 82%, below the acceptance limit of 84.6- 115%. |
Violation |
N |
eSMR |
Corona WWRF #1 |
422466 |
R8-2020-0021 |
N |
| 1149601 |
10/04/2025 |
Deficient Monitoring |
Our laboratory experienced a power outage on 10/4 and 10/5 which impacted the incubation for the Coliform samples that were collected on those days. Results reported will be considered estimated values and noted on the lab report. |
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 incubation for the Coliform samples that were collected on those days. Results reported will be considered estimated values and noted on the lab report. |
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 was 1.05 TUc at M-001. |
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 was 1.35 TUc at M-001. |
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 value was 60.4 mg/L at M-001. |
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 was 1.3 TUc at M-001. |
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 was 1.2 TUc at M-001. |
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 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 |
|
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