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. |
1144241 |
01/31/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1138483 |
11/13/2024 |
Surface Water |
On November 13, 2024, the Chino Creek temperature was 28.4 degrees Celsius above |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1144237 |
02/28/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1121049 |
07/07/2023 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.1 mg/L and reported va |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1144246 |
04/30/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1147838 |
08/31/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1145336 |
06/30/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1144240 |
05/31/2024 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1144243 |
03/31/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1144238 |
03/31/2024 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1144239 |
04/30/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1138484 |
11/22/2024 |
Surface Water |
On November 22, 2024, the Chino Creek temperature was 28.5 degrees Celsius above |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1115061 |
12/31/2022 |
Deficient Monitoring |
M-INF 3C (RP-2 Recycled Flow) Annual TCDD (full list) - IEUA missed analysis |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1115059 |
12/31/2022 |
Deficient Monitoring |
M-003 Annual Perchlorate - IEUA missed analysis |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1144236 |
01/31/2024 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 5 |
448253 |
R8-2022-0041 |
N |
1146470 |
07/31/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Regional Plant No. 1 |
448253 |
R8-2022-0041 |
N |
1144242 |
02/18/2025 |
CTOX |
Chronic Toxicity-C.dubia-Survival Maximum Daily (MDEL) limit is 50 % effect and |
Violation |
N |
eSMR |
IEUA Regional Plant No. 1 |
448253 |
R8-2022-0041 |
N |
1129922 |
06/19/2024 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.1 mg/L and reported va |
Violation |
N |
eSMR |
IEUA Regional Plant No. 1 |
448253 |
R8-2022-0041 |
N |
1115060 |
12/31/2022 |
Deficient Monitoring |
M-002 Annual Perchlorate - IEUA missed analysis; Annual 505 partial list - Euro |
Violation |
N |
eSMR |
IEUA Regional Plant No. 1 |
448253 |
R8-2022-0041 |
N |
1122893 |
11/16/2023 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.1 mg/L and reported va |
Violation |
N |
eSMR |
IEUA Regional Plant No. 1 |
448253 |
R8-2022-0041 |
N |
1115500 |
04/02/2023 |
Late Report |
Annual SMR ( SUMRPT ) report for 2022 (2711194) was due on 01-APR-23 |
Violation |
None |
Report |
IEUA Carbon Canyon WWRF |
394393 |
R8-2015-0036 |
N |
1144244 |
03/31/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Carbon Canyon WWRF |
448253 |
R8-2022-0041 |
N |
1115062 |
12/31/2022 |
Deficient Monitoring |
M-004 Annual Perchlorate - IEUA missed analysis |
Violation |
N |
eSMR |
IEUA Carbon Canyon WWRF |
448253 |
R8-2022-0041 |
N |
1144245 |
04/30/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Carbon Canyon WWRF |
448253 |
R8-2022-0041 |
N |
1109293 |
10/01/2022 |
Late Report |
Annual SMR ( PRETRPT ) report for 2021 (2416108) was due on 30-SEP-22 |
Violation |
None |
Report |
IEUA Carbon Canyon WWRF |
394393 |
R8-2015-0036 |
N |
1144367 |
05/31/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Carbon Canyon WWRF |
448253 |
R8-2022-0041 |
N |
1143714 |
04/21/2025 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 980. |
Violation |
N |
eSMR |
IEUA Carbon Canyon WWRF |
448253 |
R8-2022-0041 |
N |
1145335 |
06/30/2025 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Monthly Median limit is 0 Pass/Fail (Pass |
Violation |
N |
eSMR |
IEUA Carbon Canyon WWRF |
448253 |
R8-2022-0041 |
N |
1115441 |
04/02/2023 |
Late Report |
Annual SMR ( SUMRPT ) report for 2022 (2553933) was due on 01-APR-23 |
Violation |
None |
Report |
IEUA Carbon Canyon WWRF |
394393 |
R8-2015-0036 |
N |
1103432 |
08/31/2021 |
Deficient Monitoring |
Toxicity data was not reported for 003-A for August 2021. Discharger used NODI P |
Violation |
N |
Report |
IEUA Carbon Canyon WWRF |
394393 |
R8-2015-0036 |
N |
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