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COLUMBIA FALLS CITY OF

Montana — Community Water System — PWSID: MT0000181

System Information

PWSIDMT0000181
System NameCOLUMBIA FALLS 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
CityCOLUMBIA FALLS
ZIP Code59912
Address130 6TH STREET WEST
OrganizationSTAALAND, BARB
Phone406-892-4388

Population & Service

Population Served4,450
Service Connections2,186

Drinking Water Violations (96)

This water system has 96 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, 2022 Sep 30, 2022 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Chlordane MR No Yes — 0.002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Chlordane MR No Yes — 0.002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 LASSO MR No Yes — — — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 LASSO MR No Yes — — — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 LASSO MR No Yes — — — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Carbofuran MR No Yes — 0.04 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Chlordane MR No Yes — 0.002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Atrazine MR No Yes — 0.003 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 OXAMYL MR No Yes — 0.2 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 OXAMYL MR No Yes — 0.2 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Atrazine MR No Yes — 0.003 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Toxaphene MR No Yes — 0.003 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Toxaphene MR No Yes — 0.003 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Toxaphene MR No Yes — 0.003 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Sep 30, 2022 Synthetic Organic Chemicals
Jul 1, 2022 Sep 30, 2022 BHC-GAMMA MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2022 Synthetic Organic 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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