DILLON CITY OF
Montana — Community Water System — PWSID: MT0000201
System Information
| PWSID | MT0000201 |
| System Name | DILLON CITY OF |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Feb 13, 1979 |
| Last Reported | Jan 5, 2026 |
Location & Contact
| State | Montana |
| City | DILLON |
| ZIP Code | 59725 |
| Address | 125 N IDAHO ST |
| Organization | ABBEY, KRISTINA |
| Phone | 406-683-4245 |
Population & Service
| Population Served | 4,300 |
| Service Connections | 1,920 |
Drinking Water Violations (14)
This water system has 14 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| May 1, 2012 | May 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2012 | Total Coliform Rule |
| May 1, 2012 | May 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2012 | Total Coliform Rule |
| May 1, 2012 | May 31, 2012 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | May 31, 2012 | Total Coliform Rule |
| Nov 1, 2011 | Nov 30, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2011 | Total Coliform Rule |
| Nov 1, 2011 | Nov 30, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2011 | Total Coliform Rule |
| Nov 1, 2011 | Nov 30, 2011 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2011 | Total Coliform Rule |
| Nov 1, 2005 | Nov 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2005 | Total Coliform Rule |
| Nov 1, 2005 | Nov 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2005 | Total Coliform Rule |
| Nov 1, 2005 | Nov 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2005 | Total Coliform Rule |
| Nov 1, 2005 | Nov 30, 2005 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 2005 | Total Coliform Rule |
| Oct 1, 2002 | — | Lead and Copper Rule | MR | No | No | — | TT | — | Resolved | Sep 21, 2005 | Lead and Copper Rule |
| Dec 1, 1995 | Dec 31, 1995 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Dec 31, 1995 | Total Coliform Rule |
| Nov 1, 1995 | Nov 30, 1995 | Coliform (TCR) | MR | No | No | — | 5% of samples | — | Resolved | Nov 30, 1995 | Total Coliform Rule |
| Jan 1, 1993 | Dec 31, 1993 | Nitrate | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 1993 | Nitrate Rule |
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.