Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
1141490 |
02/06/2025 |
OEV |
Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 2.20 NTU at FIL-001. |
Replaced torn filter panels in Disc filter, increased monitoring of filters during the storm. |
Violation |
U |
eSMR |
1141491 |
02/04/2025 |
OEV |
Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 2.04 NTU at FIL-001. |
We noticed torn Disc filter panels, replaced all torn panels. Increased monitoring of Disc filter during storm. |
Violation |
U |
eSMR |
1134900 |
09/09/2024 |
CTOX |
Chronic Toxicity-C.dubia-Reproduction Other limit is 1 TUc and reported value was 1.3 TUc at EFF-001. |
Operations staff have increased wasting and basin cleaning |
Violation |
B |
eSMR |
1132833 |
07/31/2024 |
CAT1 |
Ammonia, Total (as N) Monthly Average (Mean) limit is 2.0 mg/L and reported value was 5.1 mg/L at EFF-001. |
|
Violation |
B |
Report |
1131489 |
07/16/2024 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 7 NTU at FIL-001. |
During the month of June, staff noticed an increasing amount of foaming on the aeration basins, settleability issues in the secondary clarifiers, and an increase in turbidity.
On June 13, 2024, an influent sample was collected and analyzed for Oil and Grease.
The result confirmed a high level of FOG (69 mg/l) in the influent.
This increase, mainly grease, allowed for the increase of the nocardia filaments in the system, which has overwhelmed the basins, fracturing the floc which subsequently results in poor settling and an increase in turbidity.
The filament issue continued into the month of July. Staff continued aggressively wasting solids, applying Chlorine bleach to kill the unwanted bacteria.
On July 17, 2024 the treatment process began to respond with turbidity, ammonia conversion, and settleability all working much better.
From 7/1/2024 through 7/16/2024 the WWTP exceeded the turbidity daily average of 2 NTU.
On July 2, 3, 10, 11, 2024 the WWTP exceeded the turbidity of 5 NTU more than 5% of the time within a 24-hour period; and 10 NTU, at any time.
|
Violation |
B |
eSMR |
1131490 |
07/15/2024 |
Order Conditions |
Turbidity Instantaneous Maximum limit is 10.0 NTU and reported value was 19 NTU at FIL-001. |
During the month of June, staff noticed an increasing amount of foaming on the aeration basins, settleability issues in the secondary clarifiers, and an increase in turbidity.
On June 13, 2024, an influent sample was collected and analyzed for Oil and Grease.
The result confirmed a high level of FOG (69 mg/l) in the influent.
This increase, mainly grease, allowed for the increase of the nocardia filaments in the system, which has overwhelmed the basins, fracturing the floc which subsequently results in poor settling and an increase in turbidity.
The filament issue continued into the month of July. Staff continued aggressively wasting solids, applying Chlorine bleach to kill the unwanted bacteria.
On July 17, 2024 the treatment process began to respond with turbidity, ammonia conversion, and settleability all working much better.
From 7/1/2024 through 7/16/2024 the WWTP exceeded the turbidity daily average of 2 NTU.
On July 2, 3, 10, 11, 2024 the WWTP exceeded the turbidity of 5 NTU more than 5% of the time within a 24-hour period; and 10 NTU, at any time.
|
Violation |
B |
eSMR |
1131491 |
07/13/2024 |
CAT1 |
Ammonia, Total (as N) Weekly Average limit is 6.7 mg/L and reported value was 13.6 mg/L at EFF-001. |
Increased wasting of solids and treatment for nocardia filaments resulted in the loss of nitrification. decreased wasting and increased DO levels to correct the situation |
Violation |
B |
eSMR |
1131488 |
07/06/2024 |
CAT1 |
Ammonia, Total (as N) Weekly Average limit is 6.7 mg/L and reported value was 10.2 mg/L at EFF-001. |
Increased wasting of solids and treatment for nocardia filaments resulted in the loss of nitrification. decreased wasting and increased DO levels to correct the situation |
Violation |
B |
eSMR |
1129953 |
06/30/2024 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 6.6 NTU at FIL-001. |
Increased wasting. Reduced the RAS and all side streams to the biological process. Chlorinate the RAS.
Secure the recycle pumps. Inform the collections system supervisor of the influx of FOG to the process.
|
Violation |
B |
eSMR |
1129954 |
06/30/2024 |
Order Conditions |
Turbidity Instantaneous Maximum limit is 10 NTU and reported value was 14 NTU at FIL-001. |
Increased wasting. Reduced the RAS and all side streams to the biological process. Chlorinate the RAS.
Secure the recycle pumps. Inform the collections system supervisor of the influx of FOG to the process.
|
Violation |
B |
eSMR |
1129963 |
06/19/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. |
Increased Chlorine dose, wasting of solids, and treatment side streams. Inform collections department of the issue of FOG entering the system. |
Violation |
B |
eSMR |
1129958 |
06/06/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Increased Chlorine dose, wasting of solids, and treatment side streams. Inform collections department of the issue of FOG entering the system. |
Violation |
B |
eSMR |
1129961 |
06/05/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Increased Chlorine dose, wasting of solids, and treatment side streams. Inform collections department of the issue of FOG entering the system. |
Violation |
B |
eSMR |
1128767 |
05/31/2024 |
CAT2 |
Dichlorobromomethane Monthly Average limit is 5.9 ug/L and reported value was 6.5 ug/L at EFF-001. |
Staff has lowered the Chlorine dose, and adjusted the ammonium sulfate. |
Violation |
B |
eSMR |
1132854 |
05/14/2024 |
Order Conditions |
The Discharger attributed the increased turbidity to high levels of fats, oil, and grease (FOG) in the Facility influent which affected flocculation and settling. The Discharger notified collection system staff of the FOG issue. |
|
Violation |
B |
Report |
1127613 |
05/02/2024 |
LREP |
Quarterly SMR ( MONRPT ) report for Q1 2024 (2619056) was due on 01-MAY-24 |
|
Violation |
B |
Report |
1128063 |
04/25/2024 |
Order Conditions |
The Discharger violated the Filtration System Operating Specifications for turbidity contained in the WDRs, as shown in Table C. The Discharger reported exceedances of the maximum daily average value of 2 Nephelometric Turbidity Units (NTU) on seven days in late-April 2024. The Discharger suspects the increased turbidity was caused by the seasonal change in temperature and consequent effect on the Facility¿s biological treatment process. Turbidity was restored to levels compliant with the WDRs on 26 April 2024. |
|
Violation |
B |
Report |
1127310 |
04/02/2024 |
CAT2 |
Dichlorobromomethane Monthly Average limit is 5.9 ug/L and reported value was 6.2 ug/L at EFF-001. |
Increased ammonium sulfate dose |
Violation |
B |
eSMR |
1126196 |
03/18/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
no changes, plant running as designed. |
Violation |
B |
eSMR |
1126197 |
03/14/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Checked basins, filters, no issues found. |
Violation |
B |
eSMR |
1126198 |
03/13/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
unknown reason for compliance violation. requested lab perform side by side analysis. |
Violation |
B |
eSMR |
1126199 |
03/11/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. |
none |
Violation |
B |
eSMR |
1125083 |
02/28/2024 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
contacted the lab for further investigation. |
Violation |
B |
eSMR |
1120960 |
09/25/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Establish process control with 1 basin online to meet discharge compliance. |
Violation |
B |
eSMR |
1120962 |
09/21/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 14 MPN/100 mL at EFF-001. |
Establish process control with 1 basin online to meet discharge compliance. |
Violation |
B |
eSMR |
1120961 |
09/20/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 14.0 MPN/100 mL at EFF-001. |
Establish process control with 1 basin online to meet discharge compliance. |
Violation |
B |
eSMR |
1119361 |
07/06/2023 |
CAT2 |
Dichlorobromomethane Daily Maximum limit is 12.0 ug/L and reported value was 13.0 ug/L at EFF-001. |
Checked the ammonium sulfate dosing, resampled on July 19, 24, 26, and 31 with all results well within compliance range. |
Violation |
B |
eSMR |
1118649 |
06/30/2023 |
CAT1 |
Ammonia, Total (as N) Monthly Average limit is 2.0 mg/L and reported value was 5.9 mg/L at EFF-001. |
Plant cleaning of Aeration basin 2 resulted in loss of nitrification. |
Violation |
B |
eSMR |
1118650 |
06/28/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Increased chlorine dose |
Violation |
B |
eSMR |
1118648 |
06/15/2023 |
CAT1 |
Ammonia, Total (as N) Weekly Average limit is 6.7 mg/L and reported value was 18.5 mg/L at EFF-001. |
Aeration basin 2 was taken off line for cleaning. Plant fell out of nitrification during this time. Plant brought back online into compliance on June 19, 2023. |
Violation |
B |
eSMR |
1118647 |
06/08/2023 |
CAT2 |
Dichlorobromomethane Monthly Average limit is 5.9 ug/L and reported value was 6.0 ug/L at EFF-001. |
Reduce Chlorine dose, increase ammonium sulfate dose |
Violation |
B |
eSMR |
1118240 |
05/22/2023 |
CAT1 |
Total Suspended Solids (TSS) Weekly Average limit is 15 mg/L and reported value was 22 mg/L at EFF-001. |
Post winter storm cleanup, aeration basin grit removal. |
Violation |
B |
eSMR |
1118239 |
05/16/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Cleaning of the aeration basins project underway. |
Violation |
B |
eSMR |
1116652 |
05/01/2023 |
LREP |
Annual SMR ( TECHRPT ) (MRP section X.D.4) report for 2022 (2619128) was due on 30-APR-23 |
|
Violation |
B |
Report |
1118645 |
03/26/2023 |
DMON |
The Discharger indicated dissolved oxygen monitoring was not performed at EFF-001 during the week of 26 March 2023 because staff were focused on issues with the ongoing storm events. |
|
Violation |
B |
Report |
1115977 |
03/15/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 3.25 MPN/100 mL at EFF-001. |
maintain plant process during the storm |
Violation |
B |
eSMR |
1115976 |
03/13/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
increase Chlorine dose |
Violation |
B |
eSMR |
1113371 |
02/02/2023 |
LREP |
Quarterly SMR ( MONRPT ) report for Q4 2022 (2619051) was due on 01-FEB-23 |
|
Violation |
B |
Report |
1114337 |
01/19/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.8 MPN/100 mL at EFF-001. |
Plant staff along with outside services cleaned the influent grit chamber and primary clarifier of solids and debris.
During the week of January 21 through January 28, plant staff cleaned the filtration system and the disinfection contact chamber.
|
Violation |
B |
eSMR |
1114333 |
01/18/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 6.8 MPN/100 mL at EFF-001. |
Plant staff along with outside services cleaned the influent grit chamber and primary clarifier of solids and debris.
During the week of January 21 through January 28, plant staff cleaned the filtration system and the disinfection contact chamber.
|
Violation |
B |
eSMR |
1114335 |
01/17/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 13.0 MPN/100 mL at EFF-001. |
Plant staff along with outside services cleaned the influent grit chamber and primary clarifier of solids and debris.
During the week of January 21 through January 28, plant staff cleaned the filtration system and the disinfection contact chamber.
|
Violation |
B |
eSMR |
1114334 |
01/11/2023 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Plant staff along with outside services cleaned the influent grit chamber and primary clarifier of solids and debris.
During the week of January 21 through January 28, plant staff cleaned the filtration system and the disinfection contact chamber.
|
Violation |
B |
eSMR |
1110605 |
10/24/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 7.8 MPN/100 mL at EFF-001. |
Increased chlorine dose |
Violation |
B |
eSMR |
1108907 |
08/04/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 7.8 MPN/100 mL at EFF-001. |
cleaned chlorine sample lines |
Violation |
B |
eSMR |
1111484 |
07/11/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 3.2 MPN/100 mL at EFF-001. |
|
Violation |
B |
Report |
1107454 |
07/07/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Staff increased chlorine feed rate |
Violation |
B |
eSMR |
1105750 |
04/13/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
|
Violation |
B |
Report |
1104396 |
04/11/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Clean sample station. |
Violation |
B |
eSMR |
1104395 |
04/07/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.5 MPN/100 mL at EFF-001. |
Cleaned Contact chamber and sand filter |
Violation |
B |
eSMR |
1105749 |
04/06/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 13 MPN/100 mL at EFF-001. |
|
Violation |
B |
Report |
1105751 |
03/27/2022 |
DMON |
The Discharger failed to conduct weekly monitoring for all parameters in the receiving water during the week of 3/27/2022. |
The Discharger indicated the deficient monitoring was due to an operational oversight and procedures have been put in place to prevent future occurrences. |
Violation |
B |
Report |
1105718 |
02/10/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.0 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. |
Cleaning of the basin |
Violation |
B |
eSMR |
1102728 |
02/09/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4 MPN/100 mL at EFF-001. |
Staff cleaned the Sand Filter |
Violation |
B |
eSMR |
1100903 |
01/03/2022 |
OEV |
Total Coliform 7-Day Median limit is 2.2 MPN/100 mL and reported value was 4.0 MPN/100 mL at EFF-001. |
Staff cleaned the disc filter and sand filter. |
Violation |
B |
eSMR |
1105752 |
12/31/2021 |
DMON |
The Discharger failed to conduct annual monitoring for electrical conductivity at INF-001 and SPL-001 during 2022. |
The Discharger indicated the deficient monitoring was due to an operational oversight created by the storms during December 2022. Procedures have been implemented to mitigate the potential for future occurrences. |
Violation |
B |
Report |
1097295 |
10/26/2021 |
OEV |
pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.3 SU at EFF-001. |
Increased Magnesium Hydroxide for pH control, natural recovery |
Violation |
B |
eSMR |
1097298 |
10/25/2021 |
OEV |
pH Instantaneous Minimum limit is 6.5 SU and reported value was 6.3 SU at EFF-001. |
Increased Magnesium Hydroxide for pH control, natural recovery |
Violation |
B |
eSMR |
1097296 |
10/24/2021 |
Order Conditions |
Turbidity Daily Average (Mean) limit is 2.0 NTU and reported value was 3.1 NTU at FIL-001. |
natural recovery |
Violation |
B |
eSMR |
1089831 |
12/31/2020 |
CAT1 |
Ammonia, Total (as N) Monthly Average limit is 1.9 mg/L and reported value was 3.2 mg/L at EFF-001. |
|
Violation |
B |
Report |
1089832 |
12/31/2020 |
CAT1 |
Ammonia, Total (as N) Monthly Average limit is 11 lb/day and reported value was 15 lb/day at EFF-001. |
|
Violation |
B |
Report |
1089830 |
12/12/2020 |
CAT1 |
Ammonia, Total (as N) Weekly Average limit is 24 lb/day and reported value was 29 lb/day at EFF-001. |
|
Violation |
B |
Report |
1086052 |
12/12/2020 |
CAT1 |
Ammonia, Total (as N) Weekly Average limit is 4.2 mg/L and reported value was 10 mg/L at EFF-001. |
Discontinue application |
Violation |
B |
eSMR |
1082634 |
11/30/2020 |
CAT2 |
Dibromochloromethane Monthly Average (Mean) limit is 4.3 ug/L and reported value was 4.8 ug/L at EFF-001. |
Research ways to reduce or eliminate the DBP by Cl2 reduction, upstream process changes, etc. |
Violation |
B |
eSMR |
1081251 |
10/31/2020 |
CAT2 |
Dichlorobromomethane Monthly Average (Mean) limit is 4.3 ug/L and reported value was 4.5 ug/L at EFF-001. |
Additional sample data collection, adjust Cl2 dose |
Violation |
B |
eSMR |
1080677 |
08/09/2020 |
DMON |
Discharger failed to conduct weekly receiving water monitoring for DO, pH, temperature, and turbidity during the week of 8 August 2020. |
|
Violation |
B |
Report |
1079668 |
08/03/2020 |
CAT2 |
Dibromochloromethane Monthly Average limit is 4.3 ug/L and reported value was 7.1 ug/L at EFF-001. |
We have covered the chlorine contact basin to eliminate UV radiation from occurring. |
Violation |
B |
eSMR |
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
|