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. |
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 |
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 |
1124274 |
02/02/2024 |
Late Report |
Annual SMR ( SLUDGE ) (Biosolids (Sludge) Tech Rpt) report for 2023 (2673352) w |
Violation |
None |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
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 |
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 |
1123092 |
11/28/2023 |
Surface Water |
Not enough cooling towers were in service. The operations team has been balancin |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
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 |
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 |
1123102 |
11/29/2023 |
Surface Water |
Not enough cooling towers were in service. The operations team has been balancin |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123550 |
12/17/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123559 |
12/07/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123091 |
11/27/2023 |
Surface Water |
Not enough cooling towers were in service. The operations team has been balancin |
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 |
1123558 |
12/06/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123560 |
12/14/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123545 |
12/05/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123557 |
12/02/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1124512 |
01/30/2024 |
Surface Water |
RSW-004 13 Color Units, RSW-005 29 Color units. The upgraded liquids treatment |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123547 |
12/12/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1124513 |
01/10/2024 |
Surface Water |
RSW-004 11 Color Units, RSW-005 27 Color units. The upgraded liquids treatment |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
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 |
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 |
1123549 |
12/13/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1124503 |
01/30/2024 |
Surface Water |
RSW-004 Temp 13.7 Deg C, RSW-005 17.4 Deg C, 7 deg F difference Not enough cooli |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123548 |
12/31/2023 |
CAT1 |
Nitrate, Total (as NO3) Monthly Average limit is 10.0 mg/L and reported value wa |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
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 |
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 |
1124508 |
01/18/2024 |
Surface Water |
RSW-004 Temp 13.3 Deg C, RSW-005 18.5 Deg C, 10 deg F difference not enough cool |
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 |
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 |
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 |
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 |
1124504 |
01/02/2024 |
Surface Water |
RSW-004 Temp 13.7 Deg C, RSW-005 17.8 Deg C, 7 deg F difference Not enough cooli |
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 |
1123546 |
12/11/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
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 |
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 |
1124510 |
01/18/2024 |
Surface Water |
RSW-004 8 Color Units, RSW-005 30 Color units. The upgraded liquids treatment p |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123561 |
12/01/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
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 |
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 |
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 |
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 |
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 |
1125298 |
02/29/2024 |
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 |
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 |
1123552 |
12/15/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123555 |
12/03/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123553 |
12/16/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123544 |
12/10/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
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 |
1123556 |
12/09/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
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 |
1123551 |
12/13/2023 |
Deficient Monitoring |
Color The upgraded liquids treatment process does not use sodium hypochlorite f |
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 |
1123562 |
12/06/2023 |
Surface Water |
Color The upgraded liquids treatment process does not use sodium hypochlorite f |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123542 |
12/28/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1124506 |
01/31/2024 |
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 |
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 |
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 |
1124505 |
01/10/2024 |
Surface Water |
RSW-004 Temp 12.8 Deg C, RSW-005 17.6 Deg C, 9 deg F difference Not enough cooli |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123093 |
11/30/2023 |
Surface Water |
Not enough cooling towers were in service. The operations team has been balancin |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1130042 |
04/02/2024 |
Surface Water |
Annual running mean 72mg/L |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1126356 |
01/02/2024 |
Surface Water |
RSW-005 annual running mean for sodium was 79 mg/L. WRRF Influent sodium was 11 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123543 |
12/04/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123541 |
12/20/2023 |
Surface Water |
Color The upgraded liquids treatment process does not use sodium hypochlorite f |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1126355 |
03/31/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 11 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123554 |
12/08/2023 |
Surface Water |
Temperature not enough cooling towers were in service. The operations team has |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
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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