Drinking Water Compliance OS

WHITEFISH, MT · Flathead County

BIG MOUNTAIN WATER COMPANY Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Montana’s official records. Always confirm current status with Montana before making decisions based on this information.

System facts

System ID (PWSID)
MT0000060
System type
Community Water System
Population served
2,435
Service connections
379
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Monitoring, Regular

    —

    Endrin

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2024 – March 31, 2024

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2024 – March 31, 2024

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    October 1, 2014 – October 31, 2014

    Resolved

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    April 1, 2014 – June 20, 2014

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    April 1, 2014 – June 20, 2014

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    July 1, 2012 – July 16, 2012

    Resolved

  • Monitoring, Regular

    —

    Asbestos

    January 1, 2011 – December 31, 2013

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2009 – March 31, 2009

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    Styrene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    Toluene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    Benzene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    April 1, 2008 – June 30, 2008

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2008 – March 31, 2008

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2008 – March 31, 2008

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2006 – March 1, 2007

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2006 – December 31, 2006

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Styrene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Toluene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Benzene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    July 1, 2005 – September 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Styrene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Toluene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Benzene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    April 1, 2005 – June 30, 2005

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2005 – March 31, 2005

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    December 1, 1997 – December 31, 1997

    Resolved

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    June 1, 1996 – June 30, 1996

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    June 1, 1996 – June 30, 1996

    Resolved

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    May 1, 1996 – May 31, 1996

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    December 1, 1994 – December 31, 1994

    Resolved

  • Monitoring, Repeat Minor (TCR)

    —

    Coliform (TCR)

    November 1, 1994 – November 30, 1994

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Contact

MAKI, GINA

406-862-2905

WHITEFISH, MT 59937