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. |
1109883 |
10/05/2021 |
Enforcement Action |
[4 Violations noted here, and any subsequent THM violations that occur during th |
Violation |
N |
Report |
San Luis Obispo WWTP |
435710 |
R3-2019-0124 |
N |
1109903 |
05/31/2021 |
Enforcement Action |
[6 Violations noted here, and any subsequent nitrate violations that occur durin |
Violation |
None |
Report |
San Luis Obispo WWTP |
435710 |
R3-2019-0124 |
N |
1075193 |
04/30/2020 |
CAT2 |
Dibromochloromethane Monthly Average (Mean) limit is .4 ug/L and reported value |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1075192 |
04/02/2020 |
CAT2 |
Dichlorobromomethane Daily Maximum limit is 1 ug/L and reported value was 17 ug/ |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1104606 |
04/30/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 45 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1102546 |
02/28/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 46 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1112902 |
10/31/2022 |
CAT2 |
Dichlorobromomethane Monthly Average (Mean) limit is 0.56 ug/L and reported valu |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1123374 |
10/12/2023 |
Order Conditions |
Discharge of treated wastewater at an unapproved location |
Violation |
N |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1112901 |
10/31/2022 |
CAT2 |
Dibromochloromethane Monthly Average limit is 0.40 ug/L and reported value was 2 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1112903 |
10/04/2022 |
CAT2 |
Dibromochloromethane Daily Maximum limit is 1.0 ug/L and reported value was 2.1 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1075194 |
04/30/2020 |
CAT2 |
Dichlorobromomethane Monthly Average (Mean) limit is .56 ug/L and reported value |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1111364 |
11/30/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 42.6 mg/L and reported val |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1123369 |
10/12/2023 |
Surface Water |
Discharge of effluent containing toxic substances in concentrations toxic to aqu |
Violation |
N |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1123371 |
10/12/2023 |
Other Codes |
Discharge of effluent to that altered the quality of its waters to a degree that |
Violation |
N |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1083583 |
10/06/2020 |
CAT2 |
Dichlorobromomethane Daily Maximum limit is 1.0 ug/L and reported value was 2.5 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1083584 |
10/31/2020 |
CAT2 |
Dichlorobromomethane Monthly Average limit is 0.56 ug/L and reported value was 2 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1097917 |
11/30/2021 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 43 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1103059 |
03/31/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 46 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1112904 |
10/04/2022 |
CAT2 |
Dichlorobromomethane Daily Maximum limit is 1.0 ug/L and reported value was 17.8 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1123373 |
10/12/2023 |
Surface Water |
Discharge that increased the concentration of ammonia, an inorganic chemical, an |
Violation |
N |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1075195 |
04/02/2020 |
CAT2 |
Dibromochloromethane Daily Maximum limit is 1.0 ug/L and reported value was 5 ug |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1082224 |
10/13/2020 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 540 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1099145 |
10/31/2021 |
CAT2 |
Dibromochloromethane Monthly Average limit is 0.4 ug/L and reported value was 1. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1099147 |
10/31/2021 |
CAT2 |
Dichlorobromomethane Monthly Average limit is 0.56 ug/L and reported value was 1 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1105844 |
05/31/2022 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 47 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1112441 |
12/03/2022 |
CAT2 |
Chlorine, Total Residual Daily Maximum limit is 0.1 mg/L and reported value was |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1091389 |
05/31/2021 |
CAT1 |
Nitrate, Total (as N) Monthly Average limit is 10 mg/L and reported value was 43 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1099144 |
10/05/2021 |
CAT2 |
Dichlorobromomethane Daily Maximum limit is 1.0 ug/L and reported value was 10.8 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1099146 |
10/05/2021 |
CAT2 |
Dibromochloromethane Daily Maximum limit is 1.0 ug/L and reported value was 1.2 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
1123370 |
10/12/2023 |
Surface Water |
Discharge of waste that caused concentrations of un-ionized ammonia to exceed 0. |
Violation |
N |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
Y |
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 |
1123106 |
11/25/2023 |
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 |
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 |
1100636 |
02/02/2022 |
Late Report |
Annual SMR ( SLUDGE ) (Biosolids (Sludge) Tech Rpt) report for 2021 (2416393) w |
Violation |
None |
Report |
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 |
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 |
1123090 |
11/09/2023 |
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 |
1119230 |
08/02/2023 |
Late Report |
Monthly SMR ( MONNPDES ) (NPDES Mon Rpt Monthly) report for June 2023 (2705561) |
Violation |
None |
Report |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123088 |
11/16/2023 |
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 |
1072141 |
02/26/2020 |
CAT2 |
Chlorine, Total Residual Other limit is 0 mg/L and reported value was .35 mg/L a |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1122851 |
11/01/2023 |
Surface Water |
The upgraded liquids treatment process does not use sodium hypochlorite for disi |
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 |
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 |
1080898 |
09/16/2020 |
Surface Water |
Violation lasted from 9/16/20 through 9/30/20. Color units at RSW-005 exceeded |
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 |
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 |
1123107 |
11/07/2023 |
Surface Water |
Water The upgraded liquids treatment process does not use sodium hypochlorite fo |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1124507 |
01/09/2024 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.1 mg/L and reported va |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123101 |
11/26/2023 |
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 |
1082774 |
11/01/2020 |
Surface Water |
Receiving water color units at RSW-005 exceeded the permit limit of not to excee |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1065658 |
09/20/2019 |
Surface Water |
Average plant influent flow from 9/13/2019 to 9/19/19 was 2.84 MGD while influen |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123094 |
11/15/2023 |
Surface Water |
Water The upgraded liquids treatment process does not use sodium hypochlorite fo |
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 |
1123103 |
11/13/2023 |
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 |
1124509 |
01/11/2024 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.1 mg/L and reported va |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1071059 |
01/02/2020 |
Surface Water |
Sodium at RSW-005 had a concentration of 97 mg/L on 1/2/20, with an annual runni |
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 |
1123084 |
11/04/2023 |
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 |
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 |
1082225 |
10/06/2020 |
Surface Water |
RSW-004 pH at 15:12 10/6/2020 was 7.68 su. RSW-005 pH at 15:06 10/6/2020 was 7. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1091393 |
10/14/2020 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1066959 |
10/07/2019 |
Surface Water |
Temperature at RSW-004 was 16.3 degrees C at 13:39 on 10/7/19, the temperature a |
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 |
12/30/2023 |
CAT1 |
Nitrate, Total (as NO3) Monthly Mean limit is 10 % and reported value was 12 % a |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1061963 |
07/01/2019 |
Surface Water |
Annual running mean of TDS at RSW-005 = 688 mg/L, exceeding 650 mg/L limit. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123105 |
11/24/2023 |
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 |
1082775 |
11/19/2020 |
Surface Water |
RSW-005 pH was below 7.00 su or was not within 0.5 su units of RSW-004 on 11/19/ |
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 |
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 |
1082227 |
10/01/2020 |
Surface Water |
Receiving water color units at RSW-005 exceeded the permit limit of not to excee |
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 |
1091392 |
10/14/2020 |
OEV |
Total Coliform Not to exceed a specific limit more than once within any 30-day p |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1066958 |
10/01/2019 |
Surface Water |
Annual running mean of sodium at RSW-005 = 97 mg/L exceeding the limit of 50 mg/ |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1122312 |
10/16/2023 |
Surface Water |
Receiving surface water temperature exceeded 22.5 degrees C at 14:40 on 10/16/23 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
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 |
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 |
1122313 |
10/04/2023 |
Surface Water |
RSW-005 exceeded RSW-004 true color units on 10/4/23 (19 units), 10/12/23 (28 co |
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 |
1121452 |
09/06/2023 |
Surface Water |
The upgraded liquids treatment process does not use sodium hypochlorite for disi |
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 |
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 |
1120441 |
08/17/2023 |
OEV |
pH Instantaneous Maximum limit is 8.3 SU and reported value was 8.31 SU at EFF-0 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
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 |
1121454 |
09/20/2023 |
Surface Water |
RSW-005, exceeded 22.5 Deg C, sample taken at 0948 9/20/23 had a recorded temper |
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 |
1068180 |
11/04/2019 |
Surface Water |
RSW-004 pH was 7.75 su at 12:42 on 11/4/19 , RSW-005 pH was 6.87 su at 12:40 on |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1122850 |
11/01/2023 |
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 |
1123085 |
11/05/2023 |
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 |
1125298 |
02/29/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10 mg/L and reported value |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1116495 |
05/01/2023 |
Deficient Reporting |
Q1 Pretreatment Report was not submitted by the 5/1/2023 deadline. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1086453 |
01/16/2021 |
Surface Water |
RSW-004 pH 7.65 su 1/16/21 10:38 RSW-005 pH 7.10 su 1/16/21 10:35 Effluent 001 p |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123082 |
11/06/2023 |
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 |
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 |
1121453 |
09/27/2023 |
Surface Water |
Unionized ammonia at RSW-005 was 0.0500 mg/L as N on 9/27/23 14:16. All aeratio |
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 |
1123083 |
11/08/2023 |
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 |
1123098 |
11/23/2023 |
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 |
1069966 |
12/04/2019 |
OEV |
Total Coliform Daily Maximum limit is 240 MPN/100 mL and reported value was 1600 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1109378 |
09/19/2022 |
Deficient Monitoring |
Ammonia as N has a minimum sampling frequency of once per week. Three samples w |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123099 |
11/11/2023 |
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 |
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 |
1066957 |
10/01/2019 |
Surface Water |
Annual running mean of TDS a RSW-005 = 695 mg/L, exceeding the 650 mg/L limit. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1122310 |
10/25/2023 |
Surface Water |
Receiving surface water temperature exceeded 22.5 degrees C at 13:41 on 10/16/23 |
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 |
1120440 |
08/04/2023 |
OEV |
pH Instantaneous Maximum limit is 8.3 SU and reported value was 8.40 SU at EFF-0 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
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 |
1082228 |
10/13/2020 |
OEV |
Total Coliform Not to exceed a specific limit more than once within any 30-day p |
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 |
1123104 |
11/22/2023 |
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 |
1075234 |
04/02/2020 |
Surface Water |
Sodium at RSW-005 = 103 mg/L on 4/2/20. High influent chloride, sodium, and TDS |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123087 |
11/15/2023 |
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 |
1122314 |
10/12/2023 |
Surface Water |
RSW-005 unionized ammonia as N was 1.42 mg/L on 10/12/23 at 10:00. Effluent - 0 |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1122311 |
10/29/2023 |
OEV |
pH Daily Maximum limit is 8.3 SU and reported value was 8.38 SU at EFF-001. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123086 |
11/14/2023 |
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 |
1124506 |
01/31/2024 |
CAT1 |
Nitrate, Total (as N) Monthly Average (Mean) limit is 10 mg/L and reported value |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1124514 |
01/19/2024 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.1 mg/L and reported va |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1080896 |
09/11/2020 |
Surface Water |
Violation lasted from 9/11/20 through 9/30/20. Un-ionized ammonia at RSW-005 ex |
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 |
1123096 |
11/12/2023 |
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 |
1102545 |
02/28/2022 |
Deficient Monitoring |
Eff-001 was not sampled for Oil and Grease in February 2022. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1082226 |
10/01/2020 |
Surface Water |
Un-ionized ammonia as N, exceeded 0.025 mg/L as N on 10/1/2020, 10/2/2020, 10/3 |
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 |
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 |
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 |
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 |
1071058 |
01/02/2020 |
Surface Water |
TDS at RSW-005 was 730 mg/L on 1/2/20, the annual average running mean was 683 m |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123100 |
11/20/2023 |
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 |
1080897 |
09/23/2020 |
Surface Water |
RSW-005 pH 6.82 su on 9/23/20 compliance on 9/24/20 ph 7.17 su Sodium bisulfite |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1124511 |
01/16/2024 |
CAT2 |
Chlorine, Total Residual Instantaneous Maximum limit is 0.1 mg/L and reported va |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1075235 |
04/02/2020 |
Surface Water |
TDS at RSW-005 = 735 mg/L on 4/2/20. High influent chloride, sodium, and TDS cou |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1061962 |
07/01/2019 |
Surface Water |
Annual running mean of sodium at RSW-005 = 88 mg/L, exceeding max of 50 mg/L. |
Violation |
N |
eSMR |
San Luis Obispo WWTP |
399576 |
R3-2014-0033 |
N |
1123095 |
11/07/2023 |
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 |
1123097 |
11/19/2023 |
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 |
1123089 |
11/17/2023 |
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 |
1071610 |
03/08/2020 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Root Intrusion caused 25104.0 gallons of sewage to spill from |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
Y |
1063609 |
09/08/2019 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Debris-General;Sand and debris appeared to have "partial block |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1072058 |
03/25/2020 |
Late Report |
City failed to complete and certify 3/8/20 SSO report in CIWQS by 3/24/20 in vio |
Violation |
N |
Report |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
Y |
1111653 |
12/31/2022 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Grease Deposition (FOG);We believe the spill was caused by gre |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
Y |
1080385 |
10/17/2020 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Debris-General caused 1879.0 gallons of sewage to spill from L |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1071000 |
02/21/2020 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Other (specify below);Possible roots due to main being on a cl |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1103329 |
04/24/2022 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Debris-General;The spill was caused by grit in the City main. |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1091282 |
06/22/2021 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Root Intrusion caused 634 gallons of sewage to spill from Late |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1111500 |
12/26/2022 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Root Intrusion;The spill was caused by root intrusion into the |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1079143 |
09/05/2020 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Root Intrusion caused 3812.0 gallons of sewage to spill from M |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1087698 |
03/17/2021 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Grease Deposition (FOG) caused 2930.0 gallons of sewage to spi |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1095480 |
10/19/2021 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Pipe Structural Problem/Failure;NA caused 175.0 gallons of sew |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1115625 |
04/19/2023 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 3. Grease Deposition (FOG);The mainline blocked of with grease. c |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1069819 |
01/20/2020 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Other (specify below);Unknown caused 2142.0 gallons of sewage |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1090895 |
06/06/2021 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Debris-General caused 4050.0 gallons of sewage to spill from L |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
N |
1107172 |
08/15/2022 |
Sanitary Sewer Overflow/Spill/ |
Type: Category 1. Operator Error;Souza construction was working on Broad x Ramon |
Violation |
N |
SSO |
San Luis Obispo CS |
299937 |
2022-0103-DWQ |
Y |
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