MOUNTAIN SHADOWS ESTATES STEVENSVILLE
Montana — Community Water System — PWSID: MT0002132
System Information
| PWSID | MT0002132 |
| System Name | MOUNTAIN SHADOWS ESTATES STEVENSVILLE |
| System Type | Community Water System |
| Water Source | Ground Water |
| Activity Status | Active |
| Owner Type | Private |
| EPA Region | 08 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 28, 1982 |
| Last Reported | Mar 26, 2026 |
Location & Contact
| State | Montana |
| City | MISSOULA |
| ZIP Code | 59806 |
| Address | PO BOX 3745 |
| Organization | ADVANCED WATER SAMPLING |
| Phone | 406-214-8285 |
Population & Service
| Population Served | 55 |
| Service Connections | 22 |
Drinking Water Violations (231)
This water system has 231 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 13, 2025 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Dec 13, 2025 | — | TT | Yes | No | — | — | — | Unaddressed | — | — | |
| Sep 20, 2022 | — | MR | No | Yes | — | — | — | Resolved | Sep 20, 2022 | — | |
| Sep 20, 2022 | — | MR | No | Yes | — | — | — | Resolved | Sep 20, 2022 | — | |
| Sep 20, 2022 | — | MR | No | Yes | — | — | — | Resolved | Sep 20, 2022 | — | |
| Sep 20, 2022 | — | MR | No | Yes | — | — | — | Resolved | Sep 20, 2022 | — | |
| Jul 1, 2017 | — | Other | No | No | — | — | — | Resolved | Jul 24, 2017 | — | |
| Jul 1, 2017 | — | Other | No | No | — | — | — | Resolved | Jul 24, 2017 | — | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Aug 7, 2012 | — | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Aug 7, 2012 | — | |
| Aug 1, 2012 | Aug 31, 2012 | MR | No | No | — | 5% of samples | — | Resolved | Aug 7, 2012 | — | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | — | — | — | Resolved | Jun 21, 2012 | — | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | — | — | — | Resolved | Jun 21, 2012 | — | |
| Jan 1, 2012 | Dec 31, 2012 | MR | No | Yes | — | — | — | Resolved | Jun 21, 2012 | — | |
| Oct 1, 2011 | — | MR | No | Yes | — | — | — | Resolved | Dec 16, 2011 | — | |
| Oct 1, 2011 | — | MR | No | Yes | — | — | — | Resolved | Dec 16, 2011 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Oct 1, 2011 | — | MR | No | Yes | — | — | — | Resolved | Dec 16, 2011 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Oct 1, 2011 | Oct 31, 2011 | MCL | Yes | No | — | 5% of samples | — | Resolved | Oct 31, 2011 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.6 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.1 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.075 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 1 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.002 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.7 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.005 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 10 mg/L | — | Resolved | Dec 31, 2013 | — | |
| Jan 1, 2011 | Dec 31, 2013 | MR | No | Yes | — | 0.07 mg/L | — | Resolved | Dec 31, 2013 | — |
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.