| MON | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | Revised Total Coliform Rule | 20250030450 | Known | 01-SEP-2025 | 30-SEP-2025 | No |
| MR | Failure to Conduct Assessment Monitoring | Ground Water Rule | E. COLI | 20250030342 | Known | 01-SEP-2025 | 30-SEP-2025 | No |
| MR | Failure Submit IDSE/Subpart V Plan Rpt | Stage 2 Disinfectants and Disinfection Byproducts Rule | Stage 2 Disinfectants and Disinfection Byproducts Rule | 20120001987 | Returned to Compliance | 02-JUL-2010 | - | No |
| MCL | Maximum Contaminant Level Violation, Average | Stage 1 Disinfectants and Disinfection Byproducts Rule | TTHM | 20100004957 | Returned to Compliance | 01-APR-2010 | 30-JUN-2010 | Yes |
| MCL | Maximum Contaminant Level Violation, Average | Stage 1 Disinfectants and Disinfection Byproducts Rule | TTHM | 20100004158 | Returned to Compliance | 01-JAN-2010 | 31-MAR-2010 | Yes |
| MR | Monitoring, Routine (IDSE) | Stage 2 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 20120002241 | Returned to Compliance | 01-JAN-2010 | 31-MAR-2010 | No |
| MR | Monitoring, Routine (IDSE) | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 20120002242 | Returned to Compliance | 01-JAN-2010 | 31-MAR-2010 | No |
| MR | Monitoring, Routine (IDSE) | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 20120002243 | Returned to Compliance | 01-OCT-2009 | 31-DEC-2009 | No |
| MR | Monitoring, Routine (IDSE) | Stage 2 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 20120002034 | Returned to Compliance | 01-OCT-2009 | 31-DEC-2009 | No |
| MR | Monitoring, Routine (IDSE) | Stage 2 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 20120002244 | Returned to Compliance | 01-JUL-2009 | 30-SEP-2009 | No |
| MR | Monitoring, Routine (IDSE) | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 20120002021 | Returned to Compliance | 01-JUL-2009 | 30-SEP-2009 | No |
| MR | Monitoring, Routine (IDSE) | Stage 2 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 20120002245 | Returned to Compliance | 01-APR-2009 | 30-JUN-2009 | No |
| MR | Monitoring, Routine (IDSE) | Stage 2 Disinfectants and Disinfection Byproducts Rule | TTHM | 20120002246 | Returned to Compliance | 01-APR-2009 | 30-JUN-2009 | No |
| Other | Consumer Confidence Report Inadequate Reporting | Consumer Confidence Rule | Consumer Confidence Rule | 20050009195 | Returned to Compliance | 01-JUL-2005 | - | No |
| MCL | Maximum Contaminant Level Violation, Average | Stage 1 Disinfectants and Disinfection Byproducts Rule | Total Haloacetic Acids (HAA5) | 20060006896 | Returned to Compliance | 01-APR-2005 | 30-JUN-2005 | Yes |
| MCL | Maximum Contaminant Level Violation, Monthly (TCR) | Total Coliform Rule | Coliform (TCR) | 0112571 | Known | 01-MAY-2001 | 31-MAY-2001 | Yes |
| MR | Monitoring, Routine Major (TCR) | Total Coliform Rule | Coliform (TCR) | 95V0002 | Known | 01-JUN-1995 | 30-JUN-1995 | No |
| MR | Monitoring, Routine Major (TCR) | Total Coliform Rule | Coliform (TCR) | 95V0001 | Known | 01-DEC-1994 | 31-DEC-1994 | No |
| MR | Monitoring, Routine Minor (TCR) | Total Coliform Rule | Coliform (TCR) | 93V0001 | Known | 01-NOV-1992 | 30-NOV-1992 | No |
| MR | Monitoring, Routine Minor (TCR) | Total Coliform Rule | Coliform (TCR) | 93V0002 | Known | 01-OCT-1992 | 31-OCT-1992 | No |
| MR | Monitoring, Routine Minor (TCR) | Total Coliform Rule | Coliform (TCR) | 92V0001 | Known | 01-SEP-1992 | 30-SEP-1992 | No |
| MR | Monitoring, Routine Minor (TCR) | Total Coliform Rule | Coliform (TCR) | 92V0002 | Known | 01-AUG-1992 | 31-AUG-1992 | No |
| MCL | Maximum Contaminant Level Violation, Single Sample | Inorganic Chemicals | Selenium | 88V0001 | Known | 01-MAR-1988 | 28-FEB-1991 | Yes |
| MR | Monitoring, Regular | Inorganic Chemicals | Barium | 88V0011 | Known | 01-OCT-1984 | 30-SEP-1987 | No |
| MR | Monitoring, Regular | Inorganic Chemicals | Cadmium | 88V0010 | Known | 01-OCT-1984 | 30-SEP-1987 | No |
| MR | Monitoring, Regular | Inorganic Chemicals | Fluoride | 88V0008 | Known | 01-OCT-1984 | 30-SEP-1987 | No |
| MR | Monitoring, Regular | Nitrate Rule | Nitrate | 88V0005 | Known | 01-OCT-1984 | 30-SEP-1987 | No |
| MR | Monitoring, Regular | Inorganic Chemicals | Selenium | 88V0004 | Known | 01-OCT-1984 | 30-SEP-1987 | No |
| MR | Monitoring, Regular | Inorganic Chemicals | Chromium | 88V0009 | Known | 01-OCT-1984 | 30-SEP-1987 | No |
| MR | Monitoring, Regular | Arsenic Rule | Arsenic | 88V0012 | Known | 01-OCT-1984 | 30-SEP-1987 | No |
| MR | Monitoring, Regular | Inorganic Chemicals | Mercury | 88V0006 | Known | 01-OCT-1984 | 30-SEP-1987 | No |