| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 82 | Returned to Compliance | 01-JAN-2022 | 31-MAR-2022 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 81 | Returned to Compliance | 01-OCT-2021 | 31-DEC-2021 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 79 | Returned to Compliance | 01-JUL-2021 | 30-SEP-2021 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 78 | Returned to Compliance | 01-APR-2021 | 30-JUN-2021 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 77 | Returned to Compliance | 01-JAN-2021 | 31-MAR-2021 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 74 | Returned to Compliance | 01-OCT-2020 | 31-DEC-2020 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 73 | Returned to Compliance | 01-JUL-2020 | 30-SEP-2020 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 71 | Returned to Compliance | 01-APR-2020 | 30-JUN-2020 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 68 | Returned to Compliance | 01-JAN-2020 | 31-MAR-2020 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 66 | Returned to Compliance | 01-OCT-2019 | 31-DEC-2019 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 65 | Returned to Compliance | 01-JUL-2019 | 30-SEP-2019 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 63 | Returned to Compliance | 01-APR-2019 | 30-JUN-2019 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 59 | Returned to Compliance | 01-JAN-2019 | 31-MAR-2019 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 57 | Returned to Compliance | 01-OCT-2018 | 31-DEC-2018 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 56 | Returned to Compliance | 01-JUL-2018 | 30-SEP-2018 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 53 | Returned to Compliance | 01-APR-2018 | 30-JUN-2018 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 48 | Returned to Compliance | 01-JAN-2018 | 31-MAR-2018 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 46 | Returned to Compliance | 01-OCT-2017 | 31-DEC-2017 | Yes |
| Other | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | Consumer Confidence Rule | 44 | Returned to Compliance | 01-OCT-2017 | - | No |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 41 | Returned to Compliance | 01-JUL-2017 | 30-SEP-2017 | Yes |
| Other | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | Consumer Confidence Rule | 43 | Returned to Compliance | 01-JUL-2017 | - | No |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 39 | Returned to Compliance | 01-APR-2017 | 30-JUN-2017 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 38 | Returned to Compliance | 01-JAN-2017 | 31-MAR-2017 | Yes |
| MR | Failure Submit IDSE/Subpart V Plan Rpt | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 35 | Returned to Compliance | 31-OCT-2016 | - | No |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 33 | Returned to Compliance | 01-OCT-2016 | 31-DEC-2016 | Yes |
| MR | Failure Submit IDSE/Subpart V Plan Rpt | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 30 | Returned to Compliance | 31-JUL-2016 | - | No |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 31 | Returned to Compliance | 01-JUL-2016 | 30-SEP-2016 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 28 | Returned to Compliance | 01-APR-2016 | 30-JUN-2016 | Yes |
| MR | Monitoring and Reporting (DBP) | Stage 2 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 26 | Returned to Compliance | 01-DEC-2015 | 28-FEB-2016 | No |
| MR | Monitoring and Reporting (DBP) | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 25 | Returned to Compliance | 01-DEC-2015 | 28-FEB-2016 | No |
| MCL | Maximum Contaminant Level Violation, Average | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 23 | Returned to Compliance | 01-OCT-2015 | 31-DEC-2015 | Yes |
| TT | Failure To Address Deficiency | Ground Water Rule | Groundwater Rule | 49 | Returned to Compliance | 23-APR-2015 | - | Yes |
| TT | Failure To Address Deficiency | Ground Water Rule | Groundwater Rule | 51 | Returned to Compliance | 23-APR-2015 | - | Yes |
| TT | Failure To Address Deficiency | Ground Water Rule | Groundwater Rule | 50 | Returned to Compliance | 23-APR-2015 | - | Yes |
| Other | Public Notification Violation for NPDWR Violation | Public Notice Rule and Revised PN Rule | Public Notice | 20 | Returned to Compliance | 08-DEC-2014 | - | No |
| MR | Monitoring, Routine Major (TCR) | Total Coliform Rule | Coliform (TCR) | 14 | Returned to Compliance | 01-AUG-2014 | 31-AUG-2014 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | Chloramine | 15 | Returned to Compliance | 01-JUL-2014 | 30-SEP-2014 | No |
| MR | Monitoring, Routine Minor (TCR) | Total Coliform Rule | Coliform (TCR) | 12 | Returned to Compliance | 01-MAY-2014 | 31-MAY-2014 | No |
| MR | Monitoring, Repeat Major (TCR) | Total Coliform Rule | Coliform (TCR) | 11 | Returned to Compliance | 01-APR-2014 | 30-APR-2014 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | Chlorine | 13 | Returned to Compliance | 01-APR-2014 | 30-JUN-2014 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | TTHM | 9 | Returned to Compliance | 01-JAN-2013 | 31-AUG-2013 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 10 | Returned to Compliance | 01-JAN-2013 | 31-AUG-2013 | No |
| MR | Monitoring, Routine Major (TCR) | Total Coliform Rule | Coliform (TCR) | 5 | Returned to Compliance | 01-OCT-2012 | 31-OCT-2012 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 8 | Returned to Compliance | 01-JUL-2012 | 30-SEP-2012 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | TTHM | 7 | Returned to Compliance | 01-JUL-2012 | 30-SEP-2012 | No |
| TT | Failure To Address Deficiency | Ground Water Rule | Groundwater Rule | 1 | Returned to Compliance | 24-NOV-2011 | - | Yes |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | TTHM | 2 | Returned to Compliance | 01-JUL-2011 | 30-SEP-2011 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 3 | Returned to Compliance | 01-JUL-2011 | 30-SEP-2011 | No |
| Other | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | Consumer Confidence Rule | 1V00 | Returned to Compliance | 19-OCT-1999 | 01-JUL-2000 | No |