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. |
1136007 |
11/02/2024 |
Late Report |
Quarterly SMR ( MONNPDES ) (NPDES Mon Rpt Quarterly) report for Q3 2024 (2910119 |
Violation |
None |
Report |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1140054 |
02/02/2025 |
Late Report |
Annual SMR ( MONNPDES ) (NPDES Mon Rpt Annual) report for 2024 (2788365) was du |
Violation |
None |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1136008 |
11/02/2024 |
Late Report |
Quarterly SMR ( PRETRPT ) (Pretreatment Mon Rpt Quarterly) report for Q3 2024 (2 |
Violation |
None |
Report |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1136023 |
11/02/2024 |
Late Report |
Quarterly SMR ( PRETRPT ) (Pretreatment Mon Rpt Quarterly) report for Q3 2024 (2 |
Violation |
None |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1140080 |
02/04/2025 |
Late Report |
Annual SMR ( PRETRPT ) (Pretreatment Annual) report for 2024 (2788362) was due |
Violation |
None |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1140755 |
02/16/2025 |
Late Report |
Annual SMR ( SUMRPT ) (Summary Report) report for 2024 (2788363) was due on 15- |
Violation |
None |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1140077 |
02/04/2025 |
Late Report |
Annual SMR ( SLUDGE ) (Biosolids (Sludge) Tech Rpt) report for 2024 (2910122) w |
Violation |
None |
Report |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1140079 |
02/04/2025 |
Late Report |
Annual SMR ( SLUDGE ) (Biosolids (Sludge) Tech Rpt) report for 2024 (2788364) w |
Violation |
None |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1140078 |
02/04/2025 |
Late Report |
Annual SMR ( PRETRPT ) (Pretreatment Annual) report for 2024 (2910116) was due |
Violation |
None |
Report |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1139349 |
01/24/2025 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Collection System Maintenance Failure (specify below) ca |
Violation |
None |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1133723 |
07/23/2024 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1 Spill; Debris from Lateral, Root Intrusion caused 911 gallons o |
Violation |
None |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1139140 |
12/03/2024 |
CAT2 |
Molybdenum, Total Monthly Average (Mean) limit is 0.03 mg/L and reported value w |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1135199 |
09/03/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1141746 |
02/04/2025 |
Surface Water |
The difference in true color units between RSW-004 and RSW-005 was 37 on 2/4/25 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1130040 |
06/30/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10.0 mg/L and reported value was |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1131327 |
07/31/2024 |
Surface Water |
Increase of 19 color units from RSW-004 and RSW-005. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1134600 |
07/02/2024 |
Surface Water |
The annual running mean for RSW-005 sodium was 70 mg/L |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1135091 |
09/19/2024 |
Order Conditions |
Effluent-002 7 Sample Median 3.1 MPN/100 mL on 9/19/24. The elevated results wer |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1137870 |
11/05/2024 |
Surface Water |
color |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1139139 |
12/11/2024 |
Surface Water |
Receiving Water RSW-005 Color - RSW-005 was 30 true color units greater than RSW |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1137871 |
11/05/2024 |
Surface Water |
temperature |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1132901 |
08/22/2024 |
Surface Water |
Increase of 24color units from RSW-004 and RSW-005. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1135089 |
09/02/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1135194 |
09/10/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1135198 |
09/12/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1140647 |
01/07/2025 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10 mg/L and reported value |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1136644 |
10/23/2024 |
Deficient Monitoring |
Sodium hypochlorite was used to disinfect and clean a UV vessel on 10/23/24. Th |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1128176 |
04/30/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10.0 mg/L and reported value was |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1128946 |
05/31/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10.0 mg/L and reported value was |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1131326 |
07/17/2024 |
Surface Water |
Increase of 19 color units from RSW-004 and RSW-005. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1131328 |
07/31/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10.0 mg/L and reported value was |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1132902 |
08/29/2024 |
Surface Water |
Increase of 29 color units from RSW-004 and RSW-005. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1135201 |
09/11/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1137872 |
11/05/2024 |
CAT2 |
Dibromochloromethane Maximum Daily (MDEL) limit is 0.81 ug/L and reported value |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1137873 |
11/05/2024 |
CAT2 |
Dibromochloromethane Monthly Average (Mean) limit is 0.4 ug/L and reported value |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1131325 |
07/02/2024 |
Surface Water |
Increase of 19 color units from RSW-004 and RSW-005. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1141745 |
02/04/2025 |
Surface Water |
Receiving water temperature between RSW-004 and RSW-005 differed by 9.5 degrees |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1135197 |
09/09/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1135200 |
09/04/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1135090 |
09/13/2024 |
Order Conditions |
Effluent-002 Total Coliform Daily Max 65.0 MPN/100 mL on 9/13/24. The elevated |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1140646 |
01/07/2025 |
Surface Water |
The diffference in true color units between RSW-005 and RSW-004 was 28. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1132900 |
08/06/2024 |
Surface Water |
Increase of 16 color units from RSW-004 and RSW-005. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1135093 |
09/12/2024 |
Order Conditions |
Effluent-002 Total Coliform Daily Max 25.6 MPN/100 mL on 9/12/24. The elevated |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1140038 |
12/03/2024 |
Surface Water |
Sodium Annual Mean was 76 mg/L at RSW-005 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1136646 |
10/15/2024 |
Surface Water |
Receiving Water RSW-005 Color - RSW-005 was 33 true color units greater than RSW |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1136645 |
10/15/2024 |
CAT2 |
Molybdenum, Total Monthly Average (Mean) limit is 0.024 mg/L and reported value |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1135195 |
09/05/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1135092 |
09/03/2024 |
Surface Water |
RSW-005 was 26 true color units greater than RSW-004. The SLO WRRF upgrade, kno |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1130041 |
06/19/2024 |
Surface Water |
RSW-005 was 16 true color units greater than RSW-004 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1135196 |
09/06/2024 |
Deficient Monitoring |
The Water Quality Laboratory used method Standard Methods 9223 for Total Colifor |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
1139138 |
07/02/2024 |
Surface Water |
The annual running mean for RSW-005 sodium was 70 mg/L. THIS VIOLATION HAS BEEN |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
456704 |
R3-2024-0001 |
N |
Report defaults to display violations within the last year. Click here to see last five years of violations. Refer to the Interactive Violation Report for more data.
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