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THREE FORKS CITY OF

Montana — Community Water System — PWSID: MT0000343

System Information

PWSIDMT0000343
System NameTHREE FORKS 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
CityTHREE FORKS
ZIP Code59752
AddressPO BOX 187
OrganizationTURNER, CRYSTAL
Phone406-285-3431

Population & Service

Population Served1,900
Service Connections940

Drinking Water Violations (161)

This water system has 161 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
Jul 1, 2019 — Consumer Confidence Rule Other No No — — — Resolved Jul 22, 2019 Consumer Confidence Rule
Jul 1, 2019 — Consumer Confidence Rule Other No No — — — Resolved Jul 22, 2019 Consumer Confidence Rule
Jan 1, 2019 Mar 31, 2019 Arsenic MCL Yes No .067 MG/L 0.010 mg/L .01 Resolved Mar 31, 2019 Arsenic Rule
Jan 1, 2019 Mar 31, 2019 Arsenic MCL Yes No .067 MG/L 0.010 mg/L .01 Resolved Mar 31, 2019 Arsenic Rule
Jan 1, 2019 Mar 31, 2019 Arsenic MCL Yes No .067 MG/L 0.010 mg/L .01 Resolved Mar 31, 2019 Arsenic Rule
Sep 1, 2005 Sep 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2005 Total Coliform Rule
Sep 1, 2005 Sep 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2005 Total Coliform Rule
Sep 1, 2005 Sep 30, 2005 Coliform (TCR) MR No No — 5% of samples — Resolved Sep 30, 2005 Total Coliform Rule
Jan 1, 2003 Dec 31, 2003 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2003 Nitrate Rule
Jan 1, 2002 Dec 31, 2004 Nickel MR No Yes — — — Resolved Feb 24, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Nickel MR No Yes — — — Resolved Feb 24, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Nickel MR No Yes — — — Resolved Feb 24, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Feb 24, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Feb 24, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Endrin MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 OXAMYL MR No Yes — 0.2 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Picloram MR No Yes — 0.5 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Nickel MR No Yes — — — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Aldicarb MR No Yes — — — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Atrazine MR No Yes — 0.003 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Aldicarb MR No Yes — — — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Aldicarb sulfone MR No Yes — — — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Aldicarb MR No Yes — — — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Atrazine MR No Yes — 0.003 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Carbofuran MR No Yes — 0.04 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Dec 31, 2004 Synthetic Organic Chemicals
Jan 1, 2002 Dec 31, 2004 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Nickel MR No Yes — — — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Beryllium, Total MR No Yes — 0.004 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals
Jan 1, 2002 Dec 31, 2004 Thallium, Total MR No Yes — 0.002 mg/L — Resolved Dec 31, 2004 Inorganic Chemicals

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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