HINSDALE WATER DEPARTMENT
Montana - Community Water System - PWSID: MT0000250
System Information
| PWSID | MT0000250 |
| System Name | HINSDALE WATER DEPARTMENT |
| 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 | HINSDALE |
| ZIP Code | 59241 |
| Address | PO BOX 55 |
| Organization | JOHNSON, WAYNE |
| Phone | 406-228-2433 |
Population & Service
| Population Served | 250 |
| Service Connections | 137 |
Drinking Water Violations (118)
This water system has 118 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Jan 1, 2026 | Jan 31, 2026 | MON | No | Yes | - | - | - | Archived | Jan 31, 2026 | - | |
| Jan 1, 2026 | Jan 31, 2026 | MON | No | Yes | - | - | - | Archived | Jan 31, 2026 | - | |
| Nov 11, 2025 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Nov 11, 2025 | - | TT | Yes | No | - | - | - | Unaddressed | - | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Jul 17, 2025 | - | |
| Jul 1, 2025 | - | Other | No | No | - | - | - | Resolved | Jul 17, 2025 | - | |
| Feb 1, 2025 | Feb 28, 2025 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Feb 1, 2025 | Feb 28, 2025 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Feb 1, 2025 | Feb 28, 2025 | MON | No | Yes | - | - | - | Resolved | Feb 28, 2025 | - | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2021 | - | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2021 | - | |
| Jul 1, 2021 | Jul 31, 2021 | MON | No | Yes | - | - | - | Resolved | Jul 31, 2021 | - | |
| Aug 20, 2019 | - | MR | No | Yes | - | - | - | Resolved | Jan 21, 2020 | - | |
| Aug 20, 2019 | - | MR | No | Yes | - | - | - | Resolved | Jan 21, 2020 | - | |
| Aug 20, 2019 | - | MR | No | Yes | - | - | - | Resolved | Jan 21, 2020 | - | |
| Apr 1, 2018 | Apr 30, 2018 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2018 | - | |
| Apr 1, 2018 | Apr 30, 2018 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2018 | - | |
| Apr 1, 2018 | Apr 30, 2018 | MON | No | Yes | - | - | - | Resolved | Apr 30, 2018 | - | |
| Dec 30, 2017 | - | TT | Yes | No | - | - | - | Resolved | Mar 5, 2018 | - | |
| Dec 30, 2017 | - | TT | Yes | No | - | - | - | Resolved | Mar 5, 2018 | - | |
| Dec 30, 2017 | - | TT | Yes | No | - | - | - | Resolved | Mar 5, 2018 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Aug 2, 2017 | - | |
| Jul 1, 2017 | - | Other | No | No | - | - | - | Resolved | Aug 2, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jan 1, 2017 | Dec 31, 2017 | MR | No | Yes | - | - | - | Resolved | Dec 31, 2017 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Jul 21, 2016 | - | |
| Jul 1, 2016 | - | Other | No | No | - | - | - | Resolved | Jul 21, 2016 | - | |
| Oct 27, 2015 | - | MR | No | Yes | - | - | - | Resolved | Oct 29, 2015 | - | |
| Oct 27, 2015 | - | MR | No | Yes | - | - | - | Resolved | Oct 29, 2015 | - | |
| Oct 27, 2015 | - | MR | No | Yes | - | - | - | Resolved | Oct 29, 2015 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 29, 2015 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 29, 2015 | - | |
| Oct 1, 2015 | - | MR | No | No | - | TT | - | Resolved | Oct 29, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Oct 1, 2015 | Oct 31, 2015 | MCL | Yes | No | - | 5% of samples | - | Resolved | Oct 31, 2015 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Jul 16, 2015 | - | |
| Jul 1, 2015 | - | Other | No | No | - | - | - | Resolved | Jul 16, 2015 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Sep 1, 2014 | Sep 30, 2014 | MCL | Yes | No | - | 5% of samples | - | Resolved | Sep 30, 2014 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Jul 16, 2014 | - | |
| Jul 1, 2014 | - | Other | No | No | - | - | - | Resolved | Jul 16, 2014 | - | |
| Jan 1, 2013 | - | MR | No | No | - | TT | - | Resolved | Mar 11, 2013 | - | |
| Jan 1, 2013 | - | MR | No | No | - | TT | - | Resolved | Mar 11, 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.