| Other | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | Consumer Confidence Rule | 1055 | Returned to Compliance | 01-JUL-2020 | - | No |
| MON | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | Revised Total Coliform Rule | 1053 | Returned to Compliance | 01-NOV-2019 | 30-NOV-2019 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | Chlorine | 1054 | Returned to Compliance | 01-OCT-2019 | 31-DEC-2019 | No |
| TT | Monthly Turbidity Exceed (Enhanced SWTR) | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 1052 | Returned to Compliance | 01-JAN-2018 | 31-JAN-2018 | Yes |
| TT | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 1051 | Returned to Compliance | 01-JAN-2017 | 31-JAN-2017 | Yes |
| TT | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 1050 | Returned to Compliance | 01-JUL-2016 | 31-JUL-2016 | Yes |
| TT | Treatment Technique (SWTR and GWR) | Surface Water Treatment Rule | Surface Water Treatment Rule | 1049 | Returned to Compliance | 01-AUG-2015 | 31-AUG-2015 | Yes |
| Other | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | Consumer Confidence Rule | 1043 | Returned to Compliance | 01-JUL-2012 | - | No |
| Other | Record Keeping | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 1042 | Returned to Compliance | 26-AUG-2009 | - | No |
| MCL | Maximum Contaminant Level Violation, Average | Stage 1 Disinfectants and Disinfection Byproducts Rule | TTHM | 6 | Returned to Compliance | 01-APR-2008 | 30-JUN-2008 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 1 Disinfectants and Disinfection Byproducts Rule | TTHM | 5 | Returned to Compliance | 01-JAN-2008 | 31-MAR-2008 | Yes |
| MR | Monitoring, Repeat Minor (TCR) | Total Coliform Rule | Coliform (TCR) | 4 | Returned to Compliance | 01-DEC-2007 | 31-DEC-2007 | No |
| MR | Monitoring and Reporting (DBP) | Stage 1 Disinfectants and Disinfection Byproducts Rule | Chlorine | 3 | Returned to Compliance | 01-OCT-2007 | 31-DEC-2007 | No |
| MR | Monitoring, Turbidity (Enhanced SWTR) | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 2 | Returned to Compliance | 01-JUL-2007 | 31-JUL-2007 | No |
| Other | Public Notification Violation for NPDWR Violation | Public Notice Rule and Revised PN Rule | Public Notice | 1041 | Returned to Compliance | 01-JAN-2006 | - | No |
| TT | Monthly Turbidity Exceed (Enhanced SWTR) | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 299 | Returned to Compliance | 01-DEC-2005 | 31-DEC-2005 | Yes |
| MR | Monitoring, Repeat Major (TCR) | Total Coliform Rule | Coliform (TCR) | 1040 | Returned to Compliance | 01-AUG-2005 | 31-AUG-2005 | No |
| MR | Failure Submit Filter Profile/CPE Report | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 683 | Returned to Compliance | 01-MAR-2005 | - | No |
| MR | Monitoring, Turbidity (Enhanced SWTR) | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 397 | Returned to Compliance | 01-FEB-2005 | 28-FEB-2005 | No |
| MR | Failure Submit Filter Profile/CPE Report | Interim and Long Term 1 Enhanced Surface Water Treatment Rule | Interim Enhanced Surface Water Treatment Rule | 684 | Returned to Compliance | 01-DEC-2004 | - | No |
| MCL | Maximum Contaminant Level Violation, Monthly (TCR) | Total Coliform Rule | Coliform (TCR) | 9503612 | Known | 01-APR-1995 | 30-APR-1995 | Yes |
| MCL | Maximum Contaminant Level Violation, Monthly (TCR) | Total Coliform Rule | Coliform (TCR) | 9200019 | Known | 01-OCT-1991 | 31-OCT-1991 | Yes |