HAMILTON PUBLIC WATER SYSTEM
Ohio - Community Water System - PWSID: OH0904012
System Information
| PWSID | OH0904012 |
| System Name | HAMILTON PUBLIC WATER SYSTEM |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jun 2, 2001 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | Ohio |
| City | FAIRFIELD |
| ZIP Code | 45014 |
| Address | JAY MOSLEY |
| Organization | MOSLEY, JAY |
| Phone | - |
Population & Service
| Population Served | 62,447 |
| Service Connections | 24,433 |
Drinking Water Violations (64)
This water system has 64 violations recorded in the EPA SDWIS database.
| Begin Date | End Date | Contaminant | Category | Health-Based | Major | Measured | Federal MCL | State MCL | Status | Return to Compliance | Rule |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec 30, 2025 | - | Other | No | No | - | - | - | Unaddressed | - | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | 1.0 mg/L | - | Archived | Apr 30, 2025 | - | |
| Apr 1, 2025 | Apr 30, 2025 | MR | No | Yes | - | 1.0 mg/L | - | Archived | Apr 30, 2025 | - | |
| Dec 23, 2019 | - | Other | No | No | - | - | - | Resolved | Jun 23, 2020 | - | |
| Dec 23, 2019 | - | Other | No | No | - | - | - | Resolved | Jun 23, 2020 | - | |
| Jan 10, 2019 | - | Other | No | No | - | - | - | Resolved | Jul 8, 2019 | - | |
| Jan 10, 2019 | - | Other | No | No | - | - | - | Resolved | Jul 8, 2019 | - | |
| Jun 1, 2005 | Aug 31, 2005 | MR | No | Yes | - | 1.0 mg/L | - | Resolved | Aug 31, 2005 | - | |
| Jun 1, 2005 | Aug 31, 2005 | MR | No | Yes | - | 1.0 mg/L | - | Resolved | Aug 31, 2005 | - | |
| Jun 1, 2005 | Aug 31, 2005 | MR | No | Yes | - | 1.0 mg/L | - | Resolved | Aug 31, 2005 | - | |
| Jun 1, 2005 | Aug 31, 2005 | MR | No | Yes | - | 1.0 mg/L | - | Resolved | Aug 31, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | 1.0 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | 1.0 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | 1.0 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Apr 1, 2005 | Jun 30, 2005 | MR | No | Yes | - | 1.0 mg/L | - | Resolved | Jun 30, 2005 | - | |
| Jan 1, 2002 | Jun 30, 2002 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Apr 8, 2002 | - | |
| Jan 1, 2002 | Jun 30, 2002 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Apr 8, 2002 | - | |
| Jan 1, 2002 | Jun 30, 2002 | MR | No | Yes | - | 15 pCi/L | - | Resolved | Apr 8, 2002 | - | |
| Sep 1, 1997 | Sep 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1997 | - | |
| Sep 1, 1997 | Sep 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1997 | - | |
| Sep 1, 1997 | Sep 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1997 | - | |
| Sep 1, 1997 | Sep 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1997 | - | |
| Sep 1, 1997 | Sep 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1997 | - | |
| Sep 1, 1997 | Sep 30, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 1997 | - | |
| Mar 1, 1997 | Mar 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1997 | - | |
| Mar 1, 1997 | Mar 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1997 | - | |
| Mar 1, 1997 | Mar 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1997 | - | |
| Mar 1, 1997 | Mar 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1997 | - | |
| Mar 1, 1997 | Mar 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1997 | - | |
| Mar 1, 1997 | Mar 31, 1997 | MCL | Yes | No | - | 5% of samples | - | Resolved | Mar 31, 1997 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Oct 1, 1994 | Oct 31, 1994 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 1994 | - | |
| Jul 1, 1993 | - | MR | No | No | - | TT | - | Resolved | May 25, 1995 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1993 | Jun 30, 1993 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1993 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1992 | - | |
| Jun 1, 1992 | Jun 30, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | Jun 30, 1992 | - | |
| May 1, 1992 | May 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 1992 | - | |
| May 1, 1992 | May 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 1992 | - | |
| May 1, 1992 | May 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 1992 | - | |
| May 1, 1992 | May 31, 1992 | MCL | Yes | No | - | 5% of samples | - | Resolved | May 31, 1992 | - |
About This Water System
Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.