| MR | Monitoring and Reporting (DBP) | Stage 2 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 19 | Known | 01-JUL-2024 | 30-SEP-2024 | No |
| MR | Monitoring and Reporting (DBP) | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 18 | Known | 01-JUL-2024 | 30-SEP-2024 | No |
| MR | Monitoring and Reporting (DBP) | Stage 2 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 17 | Returned to Compliance | 01-JUL-2023 | 30-SEP-2023 | No |
| MR | Monitoring and Reporting (DBP) | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 16 | Returned to Compliance | 01-JUL-2023 | 30-SEP-2023 | No |
| MR | Monitoring, Regular | Synthetic Organic Chemicals | Atrazine | 15 | Returned to Compliance | 01-JUL-2022 | 30-SEP-2022 | No |
| Other | Public Notification Violation for NPDWR Violation | Public Notice Rule and Revised PN Rule | Public Notice | 14 | Open | 14-MAY-2020 | - | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | CARBON, TOTAL | 13 | Known | 01-JAN-2019 | 31-MAR-2019 | No |
| MR | Monitoring, Routine Minor (TCR) | Total Coliform Rule | Coliform (TCR) | 12 | Returned to Compliance | 01-APR-2014 | 30-APR-2014 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | CARBON, TOTAL | 11 | Returned to Compliance | 01-JUL-2012 | 30-SEP-2012 | No |
| MR | Monitoring of Treatment (SWTR-Filter) | Surface Water Treatment Rule | Surface Water Treatment Rule | 10 | Returned to Compliance | 01-OCT-2010 | 31-OCT-2010 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | CARBON, TOTAL | 7 | Returned to Compliance | 01-OCT-2010 | 31-DEC-2010 | No |
| Other | Record Keeping | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 3 | Returned to Compliance | 01-MAR-2010 | - | No |
| Other | Record Keeping | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 4 | Returned to Compliance | 01-SEP-2009 | - | No |
| Other | Record Keeping | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 5 | Returned to Compliance | 01-JUN-2009 | - | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | Chlorine | 1 | Returned to Compliance | 01-APR-2009 | 30-JUN-2009 | No |
| MR | Monitoring, Routine Minor (TCR) | Total Coliform Rule | Coliform (TCR) | 2 | Returned to Compliance | 01-APR-2009 | 30-APR-2009 | No |
| Other | Record Keeping | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 6 | Returned to Compliance | 01-NOV-2008 | - | No |
| MCL | Maximum Contaminant Level Violation, Monthly (TCR) | Total Coliform Rule | Coliform (TCR) | 99000490 | Known | 01-JUN-1999 | 30-JUN-1999 | Yes |
| MR | Monitoring, Routine Major (TCR) | Total Coliform Rule | Coliform (TCR) | 9700374 | Known | 01-FEB-1997 | 28-FEB-1997 | No |
| TT | Failure to Filter (SWTR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 9503093 | Known | 01-NOV-1994 | 30-NOV-1994 | Yes |
| TT | Failure to Filter (SWTR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 9503030 | Known | 01-OCT-1994 | 31-OCT-1994 | Yes |
| TT | Failure to Filter (SWTR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 9402845 | Known | 01-SEP-1994 | 30-SEP-1994 | Yes |
| TT | Failure to Filter (SWTR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 9402796 | Known | 01-AUG-1994 | 31-AUG-1994 | Yes |
| TT | Failure to Filter (SWTR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 9402722 | Known | 01-JUL-1994 | 31-JUL-1994 | Yes |
| TT | Failure to Filter (SWTR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 9402469 | Known | 01-JUN-1994 | 30-JUN-1994 | Yes |
| TT | Failure to Filter (SWTR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 9402418 | Known | 01-MAY-1994 | 31-MAY-1994 | Yes |
| MR | Monitoring, Routine Major (TCR) | Total Coliform Rule | Coliform (TCR) | 9402051 | Known | 01-DEC-1993 | 31-DEC-1993 | No |
| MR | Monitoring, Regular | Radionuclides and Revised Rad Rule | Gross Alpha, Excl. Radon and U | 8010760 | Known | 24-JUN-1980 | 23-JUN-1984 | No |