Violation ID |
Occurred Date |
Violation Type |
(-) Violation Description |
Corrective Action |
Status |
Classification |
Source |
1144057 |
05/27/2025 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.35 SU at M-INTB2. |
Facility is planning to install floating tiles to control algae growth. |
Violation |
U |
eSMR |
1142498 |
03/17/2025 |
OEV |
pH Instantaneous Maximum limit is 9 SU and reported value was 9.41 SU at M-INTB2. |
Facility continues to assess options to address elevated pH levels. |
Violation |
U |
eSMR |
1141617 |
02/19/2025 |
Order Conditions |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.39 SU at M-INTB2 |
Facility will continue to evaluate elevated pH readings |
Violation |
U |
eSMR |
1137798 |
11/19/2024 |
Order Conditions |
pH instantaneous maximum limit is 9.0 SU and reported value was 9.1 SU at M-INTB2. |
Facility continues to evaluate and research elevated pH readings. |
Violation |
U |
eSMR |
1136524 |
10/25/2024 |
Order Conditions |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.02 SU at M-INTB1. |
Facility will continue to evaluate elevated pH readings. |
Violation |
U |
eSMR |
1134980 |
09/10/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.12 SU at M-INTB2. |
Basin was emptied and is being cleaned. |
Violation |
U |
eSMR |
1132153 |
08/21/2024 |
OEV |
pH Instantaneous Maximum limit is 9 SU and reported value was 9.34 SU at M-INTB2. |
Facility is planning to clean the basin during Q3/Q4 2024. |
Violation |
U |
eSMR |
1131299 |
07/24/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.54 SU at M-INTB2. |
Facility is planning to conduct the basin cleaning during Q3/Q4 2024. |
Violation |
U |
eSMR |
1131300 |
07/24/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 10.9 lb/day and reported value was 16.5 lb/day at M-INTB2. |
Facility is planning to conduct the basin cleaning during Q3/Q4 2024. |
Violation |
U |
eSMR |
1131301 |
07/24/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30 mg/L and reported value was 45.2 mg/L at M-INTB2. |
Facility is planning to conduct the basin cleaning during Q3/Q4 2024. |
Violation |
U |
eSMR |
1130064 |
06/05/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.45 SU at M-INTB2. |
Facility is planning to conduct the basin cleaning during the summer of 2024. |
Violation |
U |
eSMR |
1129072 |
05/14/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.34 SU at M-INTB2. |
Facility is planning to conduct the basin cleaning during the summer of 2024. |
Violation |
U |
eSMR |
1129073 |
05/14/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.42 SU at M-INTB1. |
Facility will continue to evaluate elevated pH readings. |
Violation |
U |
eSMR |
1128215 |
04/23/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.59 SU at M-INTB2. |
Facility is planning to conduct the basin cleaning during the summer of 2024. |
Violation |
U |
eSMR |
1128214 |
04/23/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 13.2 lb/day and reported value was 17.6 lb/day at M-INTB2. |
Facility is planning to conduct the basin cleaning during the summer of 2024. |
Violation |
U |
eSMR |
1128213 |
04/23/2024 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30 mg/L and reported value was 40.0 mg/L at M-INTB2. |
Facility is planning to conduct the basin cleaning during the summer of 2024. |
Violation |
U |
eSMR |
1126586 |
03/04/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.14 SU at M-INTB1. |
Facility will continue to evaluate elevated pH readings. |
Violation |
U |
eSMR |
1126587 |
03/04/2024 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.42 SU at M-INTB2. |
Facility will continue to evaluate elevated pH readings. |
Violation |
U |
eSMR |
1123578 |
12/17/2023 |
Order Conditions |
Temp Diff b/n Intake and Discharge Instantaneous Maximum limit is 30.0 Degrees C and reported value was 31.6 Degrees C at M-001. |
Operator initiated the second circ pump immediately upon receiving the elevated temperature indication alarm in the control room. |
Violation |
U |
eSMR |
1122294 |
10/30/2023 |
DMON |
pH measurements outside the acceptable range for relative percent difference (RPD) of 0.1 pH unit |
Remind analysts of the acceptable RPD range for pH. |
Violation |
U |
eSMR |
1121426 |
09/20/2023 |
DMON |
Samples were collected per the NPDES permit requirement. Cross contamination occurred during the laboratory analysis and results of the analysis were received too late to conduct a second sample within the same month. |
When possible, collect sample earlier in the month to allow time to take a second sample if necessary. |
Violation |
U |
eSMR |
1121427 |
09/20/2023 |
DMON |
Samples were collected per the NPDES permit requirement. Cross contamination occurred during the laboratory analysis and results of the analysis were received too late to conduct a second sample within the same month. |
When possible, collect sample earlier in the month to allow time to take a second sample if necessary. |
Violation |
U |
eSMR |
1121428 |
09/20/2023 |
DMON |
Samples were collected per the NPDES permit requirement. Cross contamination occurred during the laboratory analysis and results of the analysis were received too late to conduct a second sample within the same month. |
When possible, collect sample earlier in the month to allow time to take a second sample if necessary. |
Violation |
U |
eSMR |
1120670 |
08/29/2023 |
OEV |
pH Instantaneous Maximum limit is 9 SU and reported value was 9.2 SU at M-INTB2. |
Facility will continue to evaluate elevated pH readings. |
Violation |
U |
eSMR |
1120669 |
08/29/2023 |
OEV |
pH Instantaneous Maximum limit is 9 SU and reported value was 9.96 SU at M-INTB1. |
Facility will continue to evaluate elevated pH readings. |
Violation |
U |
eSMR |
1120668 |
08/29/2023 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30 mg/L and reported value was 33.8 mg/L at M-INTB1. |
Facility will monitor elevated TSS levels to determine if elevated trend is emerging. |
Violation |
U |
eSMR |
1119737 |
07/24/2023 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.24 SU at M-INTB1. |
Facility continues to research elevated pH levels. |
Violation |
U |
eSMR |
1118246 |
05/08/2023 |
DMON |
Delta between duplicate samples was greater than 0.1 pH unit. |
Review results with technician and conduct additional training. |
Violation |
U |
eSMR |
1116891 |
04/19/2023 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.50 SU at M-INTB1. |
Site continues to monitor the pH and research possible methods for addressing the issue. |
Violation |
U |
eSMR |
1111627 |
11/22/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.05 SU at M-INTB1. |
Facility continues to research pH management strategies. |
Violation |
U |
eSMR |
1111626 |
11/22/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.13 SU at M-INTB2. |
Facility continues to research pH management strategies. |
Violation |
U |
eSMR |
1110872 |
10/31/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.08 SU at M-INTB2. |
Site continues to research potential options to control the pH levels. |
Violation |
U |
eSMR |
1110871 |
10/31/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.47 SU at M-INTB1. |
Site continues to research potential options to control the pH levels. |
Violation |
U |
eSMR |
1109495 |
09/15/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.13 SU at M-INTB2. |
Site continues to research source of elevated pH and identify corrective actions. |
Violation |
U |
eSMR |
1108791 |
08/16/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.36 SU at M-INTB1. |
Continue research to determine if source of elevated pH is algae growth in the basin. |
Violation |
U |
eSMR |
1107764 |
07/25/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.95 SU at M-INTB1. |
Continue to monitor and evaluate need for further actions based on trend. |
Violation |
U |
eSMR |
1106601 |
06/08/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.14 SU at M-INTB2. |
Continue to monitor and evaluate need for further actions based on trend. |
Violation |
U |
eSMR |
1105847 |
05/12/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.4 SU at M-INTB2. |
Continue to monitor and evaluate need for further actions based on trend. |
Violation |
U |
eSMR |
1104660 |
04/11/2022 |
DMON |
Circulating water flow was reversed at the time of sampling at M-001 sampling point. As a result, M-001 samples collected were representative of the facility intake. |
Confirm circulating gates are configured so that the results are representative of the facility outfall prior to sampling at M-001 . |
Violation |
U |
eSMR |
1104661 |
04/11/2022 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.18 SU at M-INTB1. |
Continue to monitor pH. |
Violation |
U |
eSMR |
1094709 |
08/03/2021 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.27 SU at M-INTB1. |
Basin cleaning was initiated at the end of August and will continue into Q4 2021. |
Violation |
U |
eSMR |
1094710 |
08/03/2021 |
CAT1 |
Total Suspended Solids (TSS) Monthly Average limit is 30 mg/L and reported value was 35.5 mg/L at M-INTB1. |
Basin cleaning was initiated at the end of August and will continue into Q4 2021. |
Violation |
U |
eSMR |
1093408 |
07/08/2021 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.69 SU at M-INTB1. |
AES is planning to initiate basin cleaning efforts to address the elevated pH levels. |
Violation |
U |
eSMR |
1092558 |
06/03/2021 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.7 SU at M-INTB1. |
Continue to monitor and research potential mitigation actions to address the intermittent exceedances. |
Violation |
U |
eSMR |
1091398 |
05/06/2021 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.48 SU at M-INTB1. |
Continue to monitor and research potential mitigations to address the intermittent exceedances. |
Violation |
U |
eSMR |
1090695 |
04/14/2021 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.69 SU at M-INTB1. |
Continue to monitor and research potential mitigations to address the intermittent exceedances. |
Violation |
U |
eSMR |
1089334 |
03/02/2021 |
OEV |
pH 1-Hour Average (Mean) limit is 9.0 SU and reported value was 9.1 SU at M-INTB1. |
Continue to monitor and research potential mitigations to address the intermittent exceedances. |
Violation |
U |
eSMR |
1085131 |
12/07/2020 |
OEV |
pH Instantaneous Maximum limit is 9.0 SU and reported value was 9.1 SU at M-INTB. |
Continue to monitor in the following months to determine if the elevated pH is re-occurring or if the elevated pH is a discrete event. |
Violation |
U |
eSMR |
Report displays most recent five years of violations. Refer to the Interactive Violation Report for more data.
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