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CHOTEAU CITY OF

Montana — Community Water System — PWSID: MT0000175

System Information

PWSIDMT0000175
System NameCHOTEAU CITY OF
System TypeCommunity Water System
Water SourceGround Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CityCHOTEAU
ZIP Code59422
AddressPO BOX 619
OrganizationFROWNFELDER, TOM
Phone406-466-2510

Population & Service

Population Served1,691
Service Connections713

Drinking Water Violations (35)

This water system has 35 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
Sep 1, 2014 Aug 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2014 Aug 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2014 Aug 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2014 Aug 31, 2015 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Aug 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2014 Aug 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Sep 1, 2014 Aug 31, 2015 TTHM MR No Yes — 0.080 mg/L — Resolved Aug 31, 2015 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2012 Oct 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2012 Total Coliform Rule
Oct 1, 2012 Oct 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2012 Total Coliform Rule
Oct 1, 2012 Oct 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2012 Total Coliform Rule
Oct 1, 2012 Oct 31, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 2012 Total Coliform Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Aug 7, 2012 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Aug 7, 2012 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Aug 7, 2012 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Sep 1, 2011 — E. COLI MR No Yes — — — Resolved Sep 20, 2011 Ground Water Rule
Nov 1, 1998 Nov 30, 1998 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 1998 Total Coliform Rule
Aug 1, 1998 Aug 31, 1998 Coliform (TCR) MR No No — 5% of samples — Resolved Aug 31, 1998 Total Coliform Rule
Jun 1, 1998 Jun 30, 1998 Coliform (TCR) MR No No — 5% of samples — Resolved Jun 30, 1998 Total Coliform Rule
Apr 1, 1997 Apr 30, 1997 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 30, 1997 Total Coliform Rule
Jan 1, 1997 Dec 31, 1997 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 1997 Nitrate Rule
Jan 1, 1996 Dec 31, 1998 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 1998 Arsenic Rule
Sep 1, 1995 Sep 30, 1995 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 1995 Total Coliform Rule
May 1, 1995 May 31, 1995 Coliform (TCR) MR No No — 5% of samples — Resolved May 31, 1995 Total Coliform Rule
Jul 1, 1994 Jul 31, 1994 Coliform (TCR) MR No No — 5% of samples — Resolved Jul 31, 1994 Total Coliform Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 1993 Total Coliform Rule
Nov 1, 1993 Nov 30, 1993 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 1993 Total Coliform Rule
Oct 1, 1993 Oct 31, 1993 Coliform (TCR) MR No No — 5% of samples — Resolved Oct 31, 1993 Total Coliform 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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