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Thief River Falls

Minnesota — Community Water System — PWSID: MN1570003

System Information

PWSIDMN1570003
System NameThief River Falls
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region05
Serves SchoolNo
WholesalerNo
First ReportedJan 24, 1981
Last ReportedNov 25, 2025

Location & Contact

StateMinnesota
CityThief River Falls
ZIP Code56701
AddressThief River Falls City Hall
OrganizationThief River Falls City Council
Phone2186812943

Population & Service

Population Served8,701
Service Connections3,503

Drinking Water Violations (106)

This water system has 106 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 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Jan 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2025 Jan 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Jan 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2025 Jan 31, 2025 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Archived Jan 31, 2025 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Aug 31, 2021 Lead and Copper Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Aug 31, 2021 Lead and Copper Rule
Jan 1, 2021 — Lead and Copper Rule MR No No — TT — Resolved Aug 31, 2021 Lead and Copper Rule
Jul 1, 2018 Jul 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2018 Jul 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2018 Jul 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2018 Jul 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jul 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2018 Jun 30, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2018 Jun 30, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2018 Jun 30, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jun 1, 2018 Jun 30, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jun 30, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2018 May 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2018 May 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2018 May 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
May 1, 2018 May 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved May 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Apr 1, 2018 Apr 30, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Apr 30, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2018 Mar 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2018 Mar 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2018 Mar 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Mar 1, 2018 Mar 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Mar 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2018 Feb 28, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 28, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2018 Feb 28, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 28, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2018 Feb 28, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 28, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Feb 1, 2018 Feb 28, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Feb 28, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jan 1, 2018 Jan 31, 2018 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Jan 31, 2018 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2017 Dec 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Dec 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2017 Oct 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Oct 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2017 Sep 30, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2017 Sep 30, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2017 Sep 30, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Sep 1, 2017 Sep 30, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Sep 30, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2017 Aug 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2017 Aug 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Aug 1, 2017 Aug 31, 2017 Interim Enhanced Surface Water Treatment Rule TT Yes No — — — Resolved Aug 31, 2017 Interim and Long Term 1 Enhanced Surface Water Treatment Rule

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.

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