| 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. |
| 1151684 |
12/31/2025 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. Grab |
Violation |
N |
Report |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1153031 |
03/07/2026 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1158623 |
07/31/2026 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1159608 |
08/08/2026 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1153030 |
03/31/2026 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1155358 |
05/31/2026 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1154130 |
04/04/2026 |
CAT2 |
Copper, Total Recoverable Weekly Average limit is 15 ug/L and reported value was |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1149095 |
10/22/2025 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Weekly Average limit is 45 m |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1149878 |
11/30/2025 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal Monthly Average limit is 85 % and |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1151319 |
01/31/2026 |
CAT2 |
Copper, Total Recoverable Monthly Average limit is 6.7 ug/L and reported value w |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1155359 |
05/31/2026 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1154131 |
04/04/2026 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1149881 |
11/05/2025 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1149882 |
11/30/2025 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1154128 |
04/30/2026 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1154129 |
04/30/2026 |
CAT2 |
Copper, Total Recoverable Monthly Average limit is 6.7 ug/L and reported value w |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1150298 |
12/03/2025 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average limit is 45 mg/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1150302 |
12/31/2025 |
CAT1 |
Total Suspended Solids (TSS), Percent Removal Percent Removal limit is 85 % and |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1150304 |
12/03/2025 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1150993 |
11/30/2025 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. Grab |
Violation |
N |
Report |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1156356 |
06/06/2026 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1159609 |
08/31/2026 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1150303 |
12/31/2025 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1150994 |
11/24/2025 |
Deficient Monitoring |
Lab added MOPS buffer and adjusted the sample to pH of 7.0 prior to acute toxici |
Violation |
N |
Report |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1151318 |
01/31/2026 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1158622 |
07/31/2026 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1156355 |
06/30/2026 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1154127 |
04/30/2026 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1149090 |
10/31/2025 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1158624 |
07/11/2026 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1151352 |
01/26/2026 |
Deficient Monitoring |
Lab added MOPS buffer and adjusted the sample to pH of 7.0 prior to acute toxici |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1151953 |
02/28/2026 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1151955 |
02/28/2026 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1149093 |
10/31/2025 |
CAT1 |
Biochemical Oxygen Demand (BOD) (5-day @ 20 Deg. C) Monthly Average limit is 30 |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1149094 |
10/31/2025 |
CAT2 |
Copper, Total Recoverable Monthly Average limit is 6.7 ug/L and reported value w |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1149880 |
11/30/2025 |
CAT1 |
BOD5 @ 20 Deg. C, Percent Removal Monthly Average limit is 85 % and reported val |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
Y |
| 1153029 |
03/31/2026 |
Deficient Monitoring |
Total Chlorine Residual is required to be monitored continuously by meter. |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1151320 |
01/31/2026 |
CAT1 |
BOD5 @ 20 Deg. C, Percent Removal Percent Removal limit is 85 % and reported val |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1155360 |
05/09/2026 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1156357 |
06/30/2026 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1159607 |
08/31/2026 |
CAT1 |
Aluminum, Total Recoverable Monthly Average limit is 290 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
| 1151954 |
02/07/2026 |
CAT1 |
Aluminum, Total Recoverable Weekly Average limit is 370 ug/L and reported value |
Violation |
N |
eSMR |
Alturas Municipal WWTP |
428906 |
R5-2020-0004 |
N |
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