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HELENA WATER SYSTEM

Montana — Community Water System — PWSID: MT0000241

System Information

PWSIDMT0000241
System NameHELENA WATER SYSTEM
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region08
Serves SchoolNo
WholesalerNo
First ReportedFeb 13, 1979
Last ReportedJan 5, 2026

Location & Contact

StateMontana
CityHELENA
ZIP Code59602
Address2108 E CUSTER AVE
OrganizationSANDERSON, JANICE R
Phone406-457-8512

Population & Service

Population Served32,091
Service Connections11,684

Drinking Water Violations (66)

This water system has 66 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, 2023 Mar 31, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Mar 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Mar 31, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Mar 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2023 Mar 31, 2023 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Mar 31, 2023 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Dec 31, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Dec 31, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2022 Dec 31, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .062 MG/L 0.060 mg/L .06 Resolved Dec 31, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2022 Sep 30, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .066 MG/L 0.060 mg/L .06 Resolved Sep 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2022 Sep 30, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .066 MG/L 0.060 mg/L .06 Resolved Sep 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jul 1, 2022 Sep 30, 2022 Total Haloacetic Acids (HAA5) MCL Yes No .066 MG/L 0.060 mg/L .06 Resolved Sep 30, 2022 Stage 2 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Nov 7, 2011 Consumer Confidence Rule
Oct 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Nov 7, 2011 Consumer Confidence Rule
Oct 1, 2011 — Consumer Confidence Rule Other No No — — — Resolved Nov 7, 2011 Consumer Confidence Rule
Jan 1, 2011 Dec 31, 2013 Asbestos MR No Yes — 7 MFL — Resolved Oct 28, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Asbestos MR No Yes — 7 MFL — Resolved Oct 28, 2013 Inorganic Chemicals
Jan 1, 2011 Dec 31, 2013 Asbestos MR No Yes — 7 MFL — Resolved Oct 28, 2013 Inorganic Chemicals
Oct 1, 2008 Oct 31, 2008 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2008 Surface Water Treatment Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MCL Yes No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
Sep 1, 2008 Sep 30, 2008 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2008 Total Coliform Rule
May 1, 2008 May 31, 2008 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2008 Surface Water Treatment Rule
May 1, 2008 May 31, 2008 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2008 Surface Water Treatment Rule
May 1, 2008 May 31, 2008 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2008 Surface Water Treatment Rule
May 1, 2008 May 31, 2008 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2008 Surface Water Treatment Rule
May 1, 2008 May 31, 2008 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2008 Surface Water Treatment Rule
May 1, 2008 May 31, 2008 Surface Water Treatment Rule MR No Yes — — — Resolved May 31, 2008 Surface Water Treatment Rule
Jan 1, 2008 Dec 31, 2016 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Archived Dec 31, 2016 Radionuclides and Revised Rad Rule
Oct 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Jul 16, 2009 Lead and Copper Rule
Oct 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Jul 16, 2009 Lead and Copper Rule
Oct 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Jul 16, 2009 Lead and Copper Rule
Oct 1, 2007 — Lead and Copper Rule MR No No — TT — Resolved Jul 16, 2009 Lead and Copper Rule
Oct 1, 2006 Dec 31, 2006 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2006 Dec 31, 2006 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2006 Dec 31, 2006 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2006 Dec 31, 2006 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2006 Dec 31, 2006 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Oct 1, 2006 Dec 31, 2006 TTHM MR No No — 0.080 mg/L — Resolved Dec 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2006 Jun 30, 2006 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2006 Jun 30, 2006 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2006 Jun 30, 2006 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2006 Jun 30, 2006 TTHM MR No No — 0.080 mg/L — Resolved Jun 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2006 Jun 30, 2006 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Apr 1, 2006 Jun 30, 2006 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Jun 30, 2006 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2006 Mar 31, 2006 Total Haloacetic Acids (HAA5) MR No No — 0.060 mg/L — Resolved Mar 31, 2006 Stage 1 Disinfectants and Disinfection Byproducts 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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