MISSOULA WATER
Montana — Community Water System — PWSID: MT0000294
System Information
| PWSID | MT0000294 |
| System Name | MISSOULA WATER |
| 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 | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | MISSOULA |
| ZIP Code | 59802 |
| Address | 1345 W BROADWAY ST |
| Organization | HENEHAN, MIKE |
| Phone | 406-552-6700 |
Population & Service
| Population Served | 68,200 |
| Service Connections | 28,046 |
Drinking Water Violations (84)
This water system has 84 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 5 pCi/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.007 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.2 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.4 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.05 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.4 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.4 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.5 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.001 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0004 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.006 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.0002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 15 pCi/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.04 mg/L | — | Resolved | Jun 30, 2017 | — | |
| Apr 1, 2017 | Jun 30, 2017 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Jun 30, 2017 | — |
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.