ST MARY KOA
Montana — Transient Non-Community — PWSID: 083090010
System Information
| PWSID | 083090010 |
| System Name | ST MARY KOA |
| System Type | Transient Non-Community |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Native American |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Aug 9, 2007 |
| Last Reported | Mar 2, 2026 |
Location & Contact
| State | Montana |
| City | BROWING |
| ZIP Code | 59417 |
| Address | SIYEH CORPORATION |
| Organization | FITZPATRICK, DENNIS |
| Phone | 406-768-5719 |
Population & Service
| Population Served | 700 |
| Service Connections | 211 |
Drinking Water Violations (3)
This water system has 3 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, 2025 | — | TT | Yes | No | — | — | — | Resolved | Jun 16, 2025 | — | |
| Jul 1, 2013 | Sep 30, 2013 | MR | No | No | — | 5% of samples | — | Resolved | Sep 30, 2013 | — | |
| Apr 1, 2012 | Jun 30, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Jun 30, 2012 | — |
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.