Thief River Falls
Minnesota — Community Water System — PWSID: MN1570003
System Information
| PWSID | MN1570003 |
| System Name | Thief River Falls |
| System Type | Community Water System |
| Water Source | Surface Water |
| Activity Status | Active |
| Owner Type | Local |
| EPA Region | 05 |
| Serves School | No |
| Wholesaler | No |
| First Reported | Jan 24, 1981 |
| Last Reported | Feb 25, 2026 |
Location & Contact
| State | Minnesota |
| City | Thief River Falls |
| ZIP Code | 56701 |
| Address | Thief River Falls City Hall |
| Organization | Thief River Falls City Council |
| Phone | 2186812943 |
Population & Service
| Population Served | 8,701 |
| Service Connections | 3,503 |
Drinking Water Violations (110)
This water system has 110 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, 2025 | Jan 31, 2025 | TT | Yes | No | — | — | — | Archived | Jan 31, 2025 | — | |
| Jan 1, 2025 | Jan 31, 2025 | TT | Yes | No | — | — | — | Archived | Jan 31, 2025 | — | |
| Jan 1, 2025 | Jan 31, 2025 | TT | Yes | No | — | — | — | Archived | Jan 31, 2025 | — | |
| Jan 1, 2021 | — | MR | No | No | — | TT | — | Resolved | Aug 31, 2021 | — | |
| Jan 1, 2021 | — | MR | No | No | — | TT | — | Resolved | Aug 31, 2021 | — | |
| Jan 1, 2021 | — | MR | No | No | — | TT | — | Resolved | Aug 31, 2021 | — | |
| Jul 1, 2018 | Jul 31, 2018 | TT | Yes | No | — | — | — | Resolved | Jul 31, 2018 | — | |
| Jul 1, 2018 | Jul 31, 2018 | TT | Yes | No | — | — | — | Resolved | Jul 31, 2018 | — | |
| Jul 1, 2018 | Jul 31, 2018 | TT | Yes | No | — | — | — | Resolved | Jul 31, 2018 | — | |
| Jul 1, 2018 | Jul 31, 2018 | TT | Yes | No | — | — | — | Resolved | Jul 31, 2018 | — | |
| Jun 1, 2018 | Jun 30, 2018 | TT | Yes | No | — | — | — | Resolved | Jun 30, 2018 | — | |
| Jun 1, 2018 | Jun 30, 2018 | TT | Yes | No | — | — | — | Resolved | Jun 30, 2018 | — | |
| Jun 1, 2018 | Jun 30, 2018 | TT | Yes | No | — | — | — | Resolved | Jun 30, 2018 | — | |
| Jun 1, 2018 | Jun 30, 2018 | TT | Yes | No | — | — | — | Resolved | Jun 30, 2018 | — | |
| May 1, 2018 | May 31, 2018 | TT | Yes | No | — | — | — | Resolved | May 31, 2018 | — | |
| May 1, 2018 | May 31, 2018 | TT | Yes | No | — | — | — | Resolved | May 31, 2018 | — | |
| May 1, 2018 | May 31, 2018 | TT | Yes | No | — | — | — | Resolved | May 31, 2018 | — | |
| May 1, 2018 | May 31, 2018 | TT | Yes | No | — | — | — | Resolved | May 31, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | TT | Yes | No | — | — | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | TT | Yes | No | — | — | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | TT | Yes | No | — | — | — | Resolved | Apr 30, 2018 | — | |
| Apr 1, 2018 | Apr 30, 2018 | TT | Yes | No | — | — | — | Resolved | Apr 30, 2018 | — | |
| Mar 1, 2018 | Mar 31, 2018 | TT | Yes | No | — | — | — | Resolved | Mar 31, 2018 | — | |
| Mar 1, 2018 | Mar 31, 2018 | TT | Yes | No | — | — | — | Resolved | Mar 31, 2018 | — | |
| Mar 1, 2018 | Mar 31, 2018 | TT | Yes | No | — | — | — | Resolved | Mar 31, 2018 | — | |
| Mar 1, 2018 | Mar 31, 2018 | TT | Yes | No | — | — | — | Resolved | Mar 31, 2018 | — | |
| Feb 1, 2018 | Feb 28, 2018 | TT | Yes | No | — | — | — | Resolved | Feb 28, 2018 | — | |
| Feb 1, 2018 | Feb 28, 2018 | TT | Yes | No | — | — | — | Resolved | Feb 28, 2018 | — | |
| Feb 1, 2018 | Feb 28, 2018 | TT | Yes | No | — | — | — | Resolved | Feb 28, 2018 | — | |
| Feb 1, 2018 | Feb 28, 2018 | TT | Yes | No | — | — | — | Resolved | Feb 28, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | TT | Yes | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | TT | Yes | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | TT | Yes | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Jan 1, 2018 | Jan 31, 2018 | TT | Yes | No | — | — | — | Resolved | Jan 31, 2018 | — | |
| Dec 1, 2017 | Dec 31, 2017 | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | — | |
| Dec 1, 2017 | Dec 31, 2017 | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | — | |
| Dec 1, 2017 | Dec 31, 2017 | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | — | |
| Dec 1, 2017 | Dec 31, 2017 | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | — | |
| Dec 1, 2017 | Dec 31, 2017 | TT | Yes | No | — | — | — | Resolved | Dec 31, 2017 | — | |
| Oct 1, 2017 | Oct 31, 2017 | TT | Yes | No | — | — | — | Resolved | Oct 31, 2017 | — | |
| Oct 1, 2017 | Oct 31, 2017 | TT | Yes | No | — | — | — | Resolved | Oct 31, 2017 | — | |
| Oct 1, 2017 | Oct 31, 2017 | TT | Yes | No | — | — | — | Resolved | Oct 31, 2017 | — | |
| Oct 1, 2017 | Oct 31, 2017 | TT | Yes | No | — | — | — | Resolved | Oct 31, 2017 | — | |
| Sep 1, 2017 | Sep 30, 2017 | TT | Yes | No | — | — | — | Resolved | Sep 30, 2017 | — | |
| Sep 1, 2017 | Sep 30, 2017 | TT | Yes | No | — | — | — | Resolved | Sep 30, 2017 | — | |
| Sep 1, 2017 | Sep 30, 2017 | TT | Yes | No | — | — | — | Resolved | Sep 30, 2017 | — | |
| Sep 1, 2017 | Sep 30, 2017 | TT | Yes | No | — | — | — | Resolved | Sep 30, 2017 | — | |
| Aug 1, 2017 | Aug 31, 2017 | TT | Yes | No | — | — | — | Resolved | Aug 31, 2017 | — | |
| Aug 1, 2017 | Aug 31, 2017 | TT | Yes | No | — | — | — | Resolved | Aug 31, 2017 | — | |
| Aug 1, 2017 | Aug 31, 2017 | TT | Yes | No | — | — | — | Resolved | Aug 31, 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.