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BUTTE SILVERBOW WATER DEPT

Montana — Community Water System — PWSID: MT0000170

System Information

PWSIDMT0000170
System NameBUTTE SILVERBOW WATER DEPT
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
CityBUTTE
ZIP Code59701
Address126 W GRANITE
OrganizationNEARY, MARK
Phone406-497-6519

Population & Service

Population Served33,000
Service Connections12,958

Drinking Water Violations (332)

This water system has 332 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, 2025 — Consumer Confidence Rule Other No No — — — Unaddressed — Consumer Confidence Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2024 Mar 31, 2024 TTHM MR No Yes — 0.080 mg/L — Resolved Mar 31, 2024 Stage 2 Disinfectants and Disinfection Byproducts Rule
Apr 24, 2012 — Surface Water Treatment Rule TT Yes No — — — Resolved May 16, 2017 Surface Water Treatment Rule
Apr 24, 2012 — Surface Water Treatment Rule TT Yes No — — — Resolved May 16, 2017 Surface Water Treatment Rule
Apr 24, 2012 — Surface Water Treatment Rule TT Yes No — — — Resolved May 16, 2017 Surface Water Treatment Rule
Apr 24, 2012 — Surface Water Treatment Rule TT Yes No — — — Resolved May 16, 2017 Surface Water Treatment Rule
Apr 24, 2012 — Surface Water Treatment Rule TT Yes No — — — Resolved May 16, 2017 Surface Water Treatment Rule
Apr 24, 2012 — Surface Water Treatment Rule TT Yes No — — — Resolved May 16, 2017 Surface Water Treatment Rule
Apr 1, 2012 Apr 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 25, 2012 Total Coliform Rule
Apr 1, 2012 Apr 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 25, 2012 Total Coliform Rule
Apr 1, 2012 Apr 30, 2012 Coliform (TCR) MR No No — 5% of samples — Resolved Apr 25, 2012 Total Coliform Rule
Jan 1, 2012 Dec 31, 2012 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 Nitrate-Nitrite MR No Yes — — — Resolved Dec 31, 2012 Nitrate Rule
Jan 1, 2012 Dec 31, 2012 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2012 Volatile Organic Chemicals
Jan 1, 2012 Dec 31, 2012 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2012 Volatile 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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