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ENNIS TOWN OF

Montana — Community Water System — PWSID: MT0000208

System Information

PWSIDMT0000208
System NameENNIS TOWN 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
CityENNIS
ZIP Code59729
Address328 W MAIN ST
OrganizationHAAS, NICI
Phone406-902-9097

Population & Service

Population Served1,400
Service Connections757

Drinking Water Violations (171)

This water system has 171 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
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Aug 12, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Aug 12, 2024 Lead and Copper Rule
Oct 1, 2023 — Lead and Copper Rule MR No No — TT — Resolved Aug 12, 2024 Lead and Copper Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Aug 12, 2024 Lead and Copper Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Aug 12, 2024 Lead and Copper Rule
Oct 1, 2020 — Lead and Copper Rule MR No No — TT — Resolved Aug 12, 2024 Lead and Copper Rule
Jul 1, 2018 Sep 30, 2018 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Toxaphene MR No Yes — 0.003 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 OXAMYL MR No Yes — 0.2 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Atrazine MR No Yes — 0.003 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Chlordane MR No Yes — 0.002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Dinoseb MR No Yes — 0.007 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Chlordane MR No Yes — 0.002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Toxaphene MR No Yes — 0.003 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Atrazine MR No Yes — 0.003 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Chlordane MR No Yes — 0.002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Toxaphene MR No Yes — 0.003 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 OXAMYL MR No Yes — 0.2 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Picloram MR No Yes — 0.5 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Hexachlorocyclopentadiene MR No Yes — 0.05 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Atrazine MR No Yes — 0.003 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 2,4-D MR No Yes — 0.07 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Sep 30, 2018 Synthetic Organic Chemicals
Jul 1, 2018 Sep 30, 2018 Dalapon MR No Yes — 0.2 mg/L — Resolved Sep 30, 2018 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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