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MISSOULA WATER

Montana — Community Water System — PWSID: MT0000294

System Information

PWSIDMT0000294
System NameMISSOULA WATER
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
CityMISSOULA
ZIP Code59802
Address1345 W BROADWAY ST
OrganizationHENEHAN, MIKE
Phone406-552-6700

Population & Service

Population Served68,200
Service Connections28,046

Drinking Water Violations (83)

This water system has 83 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
Apr 1, 2017 Jun 30, 2017 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Di(2-ethylhexyl) phthalate MR No Yes — 0.006 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 OXAMYL MR No Yes — 0.2 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 OXAMYL MR No Yes — 0.2 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 OXAMYL MR No Yes — 0.2 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Heptachlor MR No Yes — 0.0004 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Dinoseb MR No Yes — 0.007 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Chlordane MR No Yes — 0.002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Pentachlorophenol MR No Yes — 0.001 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Heptachlor epoxide MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Jun 30, 2017 Radionuclides and Revised Rad Rule
Apr 1, 2017 Jun 30, 2017 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Jun 30, 2017 Radionuclides and Revised Rad Rule
Apr 1, 2017 Jun 30, 2017 Combined Radium (-226 and -228) MR No Yes — 5 pCi/L — Resolved Jun 30, 2017 Radionuclides and Revised Rad Rule
Apr 1, 2017 Jun 30, 2017 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 2,4,5-TP MR No Yes — 0.05 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Benzo(a)pyrene MR No Yes — 0.0002 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Di(2-ethylhexyl) adipate MR No Yes — 0.4 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 2,4-D MR No Yes — 0.07 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 2,4-D MR No Yes — 0.07 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 2,4-D MR No Yes — 0.07 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 HEXACHLOROBENZENE MR No Yes — 0.001 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Simazine MR No Yes — 0.004 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Dalapon MR No Yes — 0.2 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Toxaphene MR No Yes — 0.003 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Toxaphene MR No Yes — 0.003 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Toxaphene MR No Yes — 0.003 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 Methoxychlor MR No Yes — 0.04 mg/L — Resolved Jun 30, 2017 Synthetic Organic Chemicals
Apr 1, 2017 Jun 30, 2017 LASSO MR No Yes — — — Resolved Jun 30, 2017 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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