WINIFRED, MT · Fergus County

WINIFRED TOWN OF Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): MT0000363
System type: Community Water System
Population served: 274
Service connections: 121
Ownership: local government
Water source: groundwater (wells)

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2025
Unaddressed
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2024 – December 31, 2024
Resolved
Monitoring, Regular
—
Styrene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Toluene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Benzene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
LASSO
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Dinoseb
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Picloram
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Simazine
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
OXAMYL
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Dalapon
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Endrin
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2023 – December 31, 2025
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2023 – December 31, 2025
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2021 – August 9, 2022
Resolved
Treatment Technique, Corrective/Expedited Actions (RTCR)
Health-based
Revised Total Coliform Rule
September 15, 2021 – October 12, 2021
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2019 – September 20, 2019
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2019 – July 31, 2019
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
October 1, 2018 – December 19, 2018
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2018 – June 28, 2018
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2018 – March 31, 2018
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2017 – June 27, 2018
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2017 – June 30, 2017
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
January 1, 2017 – March 31, 2017
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2016 – June 27, 2016
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2015 – September 29, 2015
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
July 1, 2014 – September 29, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2012 – September 30, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2009 – October 31, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2005 – November 28, 2005
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2004 – September 22, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2004 – November 28, 2005
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2003 – October 31, 2003
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2003 – December 16, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2003 – November 28, 2005
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2002 – December 16, 2005
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2002 – November 28, 2005
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Picloram
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Antimony, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Nickel
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Arsenic
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Styrene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Toluene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Benzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2002 – December 31, 2002
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2002 – December 31, 2004
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2001 – January 1, 2002
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2000 – December 31, 2000
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1999 – January 1, 2002
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Toluene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1999 – December 31, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1997 – September 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1996 – February 29, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 1995 – December 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 1995 – September 30, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 1995 – March 31, 1995
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1994 – December 31, 1994
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1994 – December 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1992 – June 30, 1992
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
January 1, 2024 – December 31, 2024	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Styrene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toluene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Benzene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor epoxide	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	LASSO	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dinoseb	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Picloram	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Simazine	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	OXAMYL	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dalapon	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	BHC-GAMMA	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Endrin	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2021 – August 9, 2022	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
September 15, 2021 – October 12, 2021	Treatment Technique, Corrective/Expedited Actions (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
July 1, 2019 – September 20, 2019	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2019 – July 31, 2019	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2018 – December 19, 2018	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
April 1, 2018 – June 28, 2018	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2018 – March 31, 2018	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2017 – June 27, 2018	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 2017 – June 30, 2017	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2017 – March 31, 2017	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
April 1, 2016 – June 27, 2016	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
July 1, 2015 – September 29, 2015	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
October 1, 2014 – October 31, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2014 – September 29, 2014	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
September 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2009 – October 31, 2009	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2005 – November 28, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2004 – September 22, 2005	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2004 – November 28, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2003 – October 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2003 – December 16, 2005	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2003 – November 28, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2002 – December 16, 2005	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
July 1, 2002 – November 28, 2005	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Picloram	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Antimony, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Nickel	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Arsenic	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Styrene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Toluene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Benzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2002	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2001 – January 1, 2002	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 1999 – January 1, 2002	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Toluene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 1999 – December 31, 2001	Monitoring, Regular	Arsenic	—	Resolved
September 1, 1997 – September 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1996 – February 29, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
December 1, 1995 – December 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 1995 – September 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
March 1, 1995 – March 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Nitrate	—	Resolved
January 1, 1994 – December 31, 2000	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
July 1, 1992 – July 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1992 – June 30, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the state

Enforcement actions

January 24, 2026State Violation/Reminder Notice21 linked violations
January 24, 2026State Public Notification requested1 linked violation
January 24, 2026State Violation/Reminder Notice1 linked violation
January 24, 2026State Public Notification requested21 linked violations
January 23, 2026State Violation/Reminder Notice1 linked violation
January 23, 2026State Public Notification requested1 linked violation
January 22, 2026State Public Notification requested23 linked violations
January 22, 2026State Violation/Reminder Notice23 linked violations
January 12, 2026State Compliance achieved21 linked violations
January 12, 2026State Compliance achieved1 linked violation
January 12, 2026State Compliance achieved23 linked violations
January 12, 2026State Compliance achieved1 linked violation
October 24, 2025State Public Notification requested1 linked violation
October 24, 2025State Violation/Reminder Notice1 linked violation
February 3, 2025State Public Notification received1 linked violation
January 22, 2025State Compliance achieved1 linked violation
January 16, 2025State Violation/Reminder Notice1 linked violation
January 16, 2025State Public Notification requested1 linked violation
August 9, 2022State Compliance achieved1 linked violation
October 19, 2021State Public Notification requested1 linked violation
October 19, 2021State Violation/Reminder Notice1 linked violation
October 12, 2021State Compliance achieved1 linked violation
October 5, 2021State Public Notification requested1 linked violation
October 5, 2021State Violation/Reminder Notice1 linked violation
October 17, 2019State Public Notification requested1 linked violation
October 17, 2019State Violation/Reminder Notice1 linked violation
September 20, 2019State Compliance achieved1 linked violation
July 31, 2019State Compliance achieved1 linked violation
July 17, 2019State Violation/Reminder Notice1 linked violation
January 22, 2019State Public Notification requested1 linked violation
January 22, 2019State Violation/Reminder Notice1 linked violation
December 19, 2018State Compliance achieved1 linked violation
July 11, 2018State Violation/Reminder Notice1 linked violation
July 11, 2018State Public Notification requested1 linked violation
June 28, 2018State Compliance achieved1 linked violation
June 28, 2018State Compliance achieved1 linked violation
June 27, 2018State Compliance achieved1 linked violation
May 2, 2018State Public Notification received1 linked violation
April 23, 2018State Public Notification requested1 linked violation
April 23, 2018State Violation/Reminder Notice1 linked violation
October 24, 2017State Violation/Reminder Notice1 linked violation
October 24, 2017State Public Notification requested1 linked violation
September 7, 2017State Public Notification received1 linked violation
July 26, 2017State Compliance achieved1 linked violation
July 26, 2017State Compliance achieved1 linked violation
July 18, 2017State Violation/Reminder Notice1 linked violation
July 18, 2017State Public Notification requested1 linked violation
April 12, 2017State Public Notification requested1 linked violation
April 12, 2017State Violation/Reminder Notice1 linked violation
July 25, 2016State Public Notification received1 linked violation
July 20, 2016State Public Notification requested1 linked violation
July 20, 2016State Violation/Reminder Notice1 linked violation
July 20, 2016State Violation/Reminder Notice1 linked violation
July 20, 2016State Public Notification requested1 linked violation
June 27, 2016State Compliance achieved1 linked violation
June 27, 2016State Compliance achieved1 linked violation
October 30, 2015State Public Notification received1 linked violation
October 20, 2015State Public Notification requested1 linked violation
October 20, 2015State Violation/Reminder Notice1 linked violation
September 29, 2015State Compliance achieved1 linked violation
November 25, 2014State Compliance achieved1 linked violation
November 12, 2014State Public Notification received1 linked violation
November 10, 2014State Violation/Reminder Notice1 linked violation
November 10, 2014State Public Notification requested1 linked violation
November 10, 2014State Violation/Reminder Notice1 linked violation
October 23, 2014State Public Notification received1 linked violation
October 14, 2014State Violation/Reminder Notice1 linked violation
October 14, 2014State Public Notification requested1 linked violation
September 29, 2014State Compliance achieved1 linked violation
June 11, 2014State Compliance achieved1 linked violation
April 16, 2014State Violation/Reminder Notice1 linked violation
April 16, 2014State Public Notification requested1 linked violation
October 29, 2012State Compliance achieved1 linked violation
October 3, 2012State Public Notification received1 linked violation
October 3, 2012State Public Notification requested1 linked violation
October 3, 2012State Violation/Reminder Notice1 linked violation
October 3, 2012State Violation/Reminder Notice1 linked violation
November 24, 2009State Compliance achieved1 linked violation
November 17, 2009State Public Notification requested1 linked violation
November 17, 2009State Violation/Reminder Notice1 linked violation
April 7, 2006Federal Complaint for Penalty Consent Order or Consent Decree32 linked violations
December 22, 2005State Compliance achieved66 linked violations
April 14, 2005State Public Notification requested9 linked violations
April 14, 2005State Public Notification requested5 linked violations
October 29, 2004State Violation/Reminder Notice5 linked violations
September 29, 2003Federal Final Administrative Order issued35 linked violations
December 23, 2002State Violation/Reminder Notice2 linked violations
September 9, 2002State Public Notification requested5 linked violations
July 25, 2002State Public Notification requested4 linked violations
July 5, 2002State Violation/Reminder Notice6 linked violations
June 29, 2002State Public Notification requested22 linked violations
June 29, 2002State Violation/Reminder Notice22 linked violations
June 28, 2002State Compliance achieved7 linked violations
September 24, 2001State Violation/Reminder Notice1 linked violation
September 24, 2001State Public Notification requested1 linked violation
June 15, 2000Federal Final Administrative Order issued3 linked violations
May 28, 2000State Violation/Reminder Notice1 linked violation
May 28, 2000State Public Notification requested1 linked violation
November 27, 1996State Formal Notice of Violation issued1 linked violation
January 30, 1996State Violation/Reminder Notice1 linked violation
May 19, 1992State Violation/Reminder Notice6 linked violations

Contact

DYER, SHIRLEY

406-462-5425

WINIFRED, MT 59489