WIBUAX, MT · Wibaux County

WIBAUX TOWN OF Water System

Current status

2 items on record are 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): MT0000361
System type: Community Water System
Population served: 550
Service connections: 283
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, Routine (RTCR)
—
Revised Total Coliform Rule
June 1, 2025 – June 30, 2025
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
January 15, 2025 – March 3, 2025
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2025 – December 31, 2025
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
December 10, 2024 – March 3, 2025
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
November 26, 2024 – March 3, 2025
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2024
Unaddressed
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
August 1, 2024 – August 31, 2024
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2023 – December 31, 2023
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2023 – December 6, 2023
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – December 6, 2023
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
February 15, 2023 – February 22, 2023
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Benzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Toluene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Styrene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Trichloroethylene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Benzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Toluene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Ethylbenzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Styrene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2023 – December 31, 2023
Resolved
Monitoring, Regular
—
Endrin
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
BHC-GAMMA
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Methoxychlor
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Toxaphene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dalapon
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
OXAMYL
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Simazine
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Picloram
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dinoseb
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Carbofuran
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Atrazine
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
LASSO
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Heptachlor
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Heptachlor epoxide
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
2,4-D
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
2,4,5-TP
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Chlordane
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
BHC-GAMMA
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Methoxychlor
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Toxaphene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Dalapon
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Simazine
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Heptachlor
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Pentachlorophenol
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
Vinyl chloride
January 1, 2023 – December 31, 2025
Archived
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2023 – December 31, 2025
Archived
Treatment Technique, Level 1 Assessment (RTCR)
Health-based
Revised Total Coliform Rule
December 12, 2022 – January 10, 2023
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
November 2, 2022 – January 4, 2023
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2021 – September 20, 2022
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
April 1, 2021 – April 30, 2021
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
November 28, 2019 – December 4, 2019
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2019 – September 23, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
December 1, 2017 – December 31, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2017 – July 27, 2017
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2017 – December 31, 2017
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
December 15, 2016 – January 24, 2017
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2016 – October 17, 2018
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
January 1, 2016 – January 31, 2016
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2015 – September 30, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
August 1, 2015 – August 31, 2015
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 2015 – June 30, 2015
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
May 29, 2015 – November 16, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2015 – January 31, 2015
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2014 – October 31, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
September 1, 2014 – September 30, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 2014 – February 28, 2014
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2013 – October 31, 2013
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
September 1, 2013 – September 30, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2012 – August 31, 2012
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
August 1, 2012 – September 13, 2012
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
August 1, 2012 – September 13, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2012 – July 31, 2012
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
May 1, 2012 – June 6, 2012
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
May 1, 2012 – September 13, 2012
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
May 1, 2012 – May 31, 2012
Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
June 1, 2025 – June 30, 2025	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 15, 2025 – March 3, 2025	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 1, 2025 – December 31, 2025	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
December 10, 2024 – March 3, 2025	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
November 26, 2024 – March 3, 2025	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
October 1, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
August 1, 2024 – August 31, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
December 1, 2023 – December 31, 2023	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2023 – December 6, 2023	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2023 – December 6, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
February 15, 2023 – February 22, 2023	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Benzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toluene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Styrene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-Dichloroethane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1,1-Trichloroethane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Carbon tetrachloride	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,2-Dichloropropane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Trichloroethylene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1,2-Trichloroethane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Tetrachloroethylene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	CHLOROBENZENE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Benzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toluene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Ethylbenzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Styrene	—	Archived
January 1, 2023 – December 31, 2023	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2023 – December 31, 2025	Monitoring, Regular	Endrin	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	BHC-GAMMA	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Methoxychlor	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toxaphene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dalapon	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	OXAMYL	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Simazine	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Picloram	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dinoseb	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Hexachlorocyclopentadiene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Carbofuran	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Atrazine	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	LASSO	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor epoxide	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4-D	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	2,4,5-TP	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	HEXACHLOROBENZENE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Benzo(a)pyrene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Pentachlorophenol	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Chlordane	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	BHC-GAMMA	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Methoxychlor	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Toxaphene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Dalapon	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Simazine	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Heptachlor	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Pentachlorophenol	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	DICHLOROMETHANE	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	o-Dichlorobenzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	p-Dichlorobenzene	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	Vinyl chloride	—	Archived
January 1, 2023 – December 31, 2025	Monitoring, Regular	1,1-Dichloroethylene	—	Archived
December 12, 2022 – January 10, 2023	Treatment Technique, Level 1 Assessment (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
November 2, 2022 – January 4, 2023	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
October 1, 2021 – September 20, 2022	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
April 1, 2021 – April 30, 2021	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
November 28, 2019 – December 4, 2019	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
October 1, 2019 – September 23, 2020	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
December 1, 2017 – December 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
July 1, 2017 – July 27, 2017	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
December 15, 2016 – January 24, 2017	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
October 1, 2016 – October 17, 2018	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2016 – January 31, 2016	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2015 – August 31, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
June 1, 2015 – June 30, 2015	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
May 29, 2015 – November 16, 2015	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 1, 2015 – January 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2014 – October 31, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2014 – September 30, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 2014 – February 28, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2013 – October 31, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2013 – September 30, 2013	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
August 1, 2012 – August 31, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2012 – September 13, 2012	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
August 1, 2012 – September 13, 2012	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
July 1, 2012 – July 31, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2012 – June 6, 2012	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
May 1, 2012 – September 13, 2012	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
May 1, 2012 – May 31, 2012	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved

Unaddressed no corrective action on record yetResolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

January 26, 2026State Compliance achieved1 linked violation
January 24, 2026State Public Notification requested21 linked violations
January 24, 2026State Violation/Reminder Notice21 linked violations
January 24, 2026State Public Notification requested21 linked violations
January 24, 2026State Violation/Reminder Notice21 linked violations
January 23, 2026State Public Notification requested1 linked violation
January 23, 2026State Violation/Reminder Notice1 linked violation
January 23, 2026State Public Notification requested1 linked violation
January 23, 2026State Violation/Reminder Notice1 linked violation
January 22, 2026State Public Notification requested23 linked violations
January 22, 2026State Violation/Reminder Notice23 linked violations
January 22, 2026State Public Notification requested23 linked violations
January 22, 2026State Violation/Reminder Notice23 linked violations
January 13, 2026State Public Notification requested1 linked violation
January 13, 2026State Violation/Reminder Notice1 linked violation
October 24, 2025State Violation/Reminder Notice1 linked violation
October 24, 2025State Public Notification requested1 linked violation
July 28, 2025State Compliance achieved4 linked violations
July 18, 2025State Public Notification requested1 linked violation
July 18, 2025State Violation/Reminder Notice1 linked violation
March 3, 2025State Compliance achieved1 linked violation
March 3, 2025State Compliance achieved1 linked violation
March 3, 2025State Compliance achieved1 linked violation
February 18, 2025State Violation/Reminder Notice1 linked violation
February 18, 2025State Public Notification requested1 linked violation
January 17, 2025State Public Notification requested1 linked violation
January 17, 2025State Violation/Reminder Notice1 linked violation
January 15, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 15, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
December 24, 2024State Public Notification requested1 linked violation
December 24, 2024State Violation/Reminder Notice1 linked violation
November 7, 2024State Violation/Reminder Notice1 linked violation
November 7, 2024State Public Notification requested1 linked violation
September 23, 2024State Compliance achieved1 linked violation
September 16, 2024State Violation/Reminder Notice1 linked violation
September 16, 2024State Public Notification requested1 linked violation
February 12, 2024State Compliance achieved1 linked violation
January 24, 2024State Violation/Reminder Notice1 linked violation
January 24, 2024State Public Notification requested1 linked violation
January 23, 2024State Violation/Reminder Notice1 linked violation
January 23, 2024State Public Notification requested1 linked violation
January 3, 2024State Compliance achieved1 linked violation
December 6, 2023State Compliance achieved1 linked violation
December 6, 2023State Compliance achieved1 linked violation
October 13, 2023State Violation/Reminder Notice1 linked violation
July 11, 2023State Violation/Reminder Notice1 linked violation
March 13, 2023State Violation/Reminder Notice1 linked violation
March 13, 2023State Public Notification requested1 linked violation
March 10, 2023State Violation/Reminder Notice1 linked violation
March 10, 2023State Public Notification requested1 linked violation
February 22, 2023State Compliance achieved1 linked violation
January 10, 2023State Compliance achieved1 linked violation
January 4, 2023State Compliance achieved1 linked violation
November 22, 2022State Violation/Reminder Notice1 linked violation
November 22, 2022State Public Notification requested1 linked violation
September 20, 2022State Compliance achieved1 linked violation
October 19, 2021State Violation/Reminder Notice1 linked violation
October 19, 2021State Public Notification requested1 linked violation
May 25, 2021State Compliance achieved1 linked violation
May 18, 2021State Public Notification requested1 linked violation
May 18, 2021State Violation/Reminder Notice1 linked violation
September 23, 2020State Compliance achieved1 linked violation
December 17, 2019State Public Notification requested1 linked violation
December 17, 2019State Violation/Reminder Notice1 linked violation
December 4, 2019State Compliance achieved1 linked violation
October 23, 2019State Public Notification requested1 linked violation
October 23, 2019State Violation/Reminder Notice1 linked violation
October 30, 2018State Public Notification requested1 linked violation
October 30, 2018State Violation/Reminder Notice1 linked violation
October 17, 2018State Compliance achieved1 linked violation
February 21, 2018State Public Notification received1 linked violation
February 1, 2018State Compliance achieved1 linked violation
January 26, 2018State Compliance achieved1 linked violation
January 23, 2018State Public Notification requested1 linked violation
January 23, 2018State Violation/Reminder Notice1 linked violation
January 17, 2018State Violation/Reminder Notice1 linked violation
January 17, 2018State Public Notification requested1 linked violation
July 27, 2017State Compliance achieved1 linked violation
July 20, 2017State Violation/Reminder Notice1 linked violation
January 26, 2017State Public Notification received1 linked violation
January 24, 2017State Compliance achieved1 linked violation
January 19, 2017State Violation/Reminder Notice1 linked violation
January 19, 2017State Public Notification requested1 linked violation
February 4, 2016State Compliance achieved1 linked violation
February 3, 2016State Public Notification requested1 linked violation
February 3, 2016State Violation/Reminder Notice1 linked violation
February 3, 2016State Violation/Reminder Notice1 linked violation
November 16, 2015State Compliance achieved1 linked violation
November 16, 2015State Compliance achieved1 linked violation
October 26, 2015State Public Notification received1 linked violation
October 20, 2015State Compliance achieved1 linked violation
October 20, 2015State Compliance achieved1 linked violation
September 11, 2015State Public Notification requested1 linked violation
September 11, 2015State Violation/Reminder Notice1 linked violation
September 11, 2015State Violation/Reminder Notice2 linked violations
September 1, 2015State Public Notification requested1 linked violation
September 1, 2015State Violation/Reminder Notice1 linked violation
July 15, 2015State Public Notification requested2 linked violations
July 15, 2015State Violation/Reminder Notice1 linked violation
June 16, 2015State Violation/Reminder Notice1 linked violation
June 16, 2015State Public Notification requested1 linked violation
February 24, 2015State Public Notification received1 linked violation
February 13, 2015State Public Notification requested1 linked violation
February 13, 2015State Violation/Reminder Notice1 linked violation
February 3, 2015State Compliance achieved1 linked violation
November 19, 2014State Public Notification received1 linked violation
November 18, 2014State Compliance achieved1 linked violation
October 17, 2014State Violation/Reminder Notice1 linked violation
October 17, 2014State Public Notification requested1 linked violation
October 17, 2014State Violation/Reminder Notice1 linked violation
October 15, 2014State Public Notification requested1 linked violation
October 15, 2014State Violation/Reminder Notice1 linked violation
October 8, 2014State Compliance achieved1 linked violation
March 14, 2014State Public Notification requested1 linked violation
March 14, 2014State Violation/Reminder Notice1 linked violation
March 6, 2014State Compliance achieved1 linked violation
November 20, 2013State Compliance achieved1 linked violation
November 20, 2013State Compliance achieved1 linked violation
November 7, 2013State Public Notification received1 linked violation
October 24, 2013State Violation/Reminder Notice1 linked violation
October 24, 2013State Public Notification requested1 linked violation
October 24, 2013State Violation/Reminder Notice1 linked violation
October 15, 2013State Public Notification requested1 linked violation
October 15, 2013State Violation/Reminder Notice1 linked violation
November 19, 2012State Public Notification received2 linked violations
October 17, 2012State Compliance achieved1 linked violation
October 17, 2012State Compliance achieved1 linked violation
September 19, 2012State Violation/Reminder Notice1 linked violation
September 19, 2012State Public Notification requested1 linked violation
September 19, 2012State Violation/Reminder Notice1 linked violation
September 19, 2012State Public Notification requested1 linked violation
September 13, 2012State Compliance achieved6 linked violations
August 23, 2012State Public Notification received1 linked violation
August 13, 2012State Public Notification requested1 linked violation
August 13, 2012State Violation/Reminder Notice1 linked violation
August 13, 2012State Violation/Reminder Notice1 linked violation
July 9, 2012State Violation/Reminder Notice1 linked violation
July 9, 2012State Public Notification received1 linked violation
July 9, 2012State Public Notification requested1 linked violation
July 9, 2012State Violation/Reminder Notice1 linked violation
June 18, 2012State Violation/Reminder Notice1 linked violation
June 18, 2012State Public Notification requested1 linked violation
June 18, 2012State Violation/Reminder Notice1 linked violation
June 18, 2012State Public Notification requested1 linked violation
June 15, 2012State Public Notification requested1 linked violation
June 15, 2012State Violation/Reminder Notice1 linked violation
June 8, 2012State Public Notification requested1 linked violation
June 8, 2012State Boil Water Order1 linked violation
June 8, 2012State Violation/Reminder Notice1 linked violation
June 8, 2012State Violation/Reminder Notice1 linked violation
June 6, 2012State Compliance achieved1 linked violation
June 6, 2012State Compliance achieved1 linked violation
July 25, 2011State Public Notification received1 linked violation
July 6, 2011State Compliance achieved1 linked violation
June 23, 2011State Public Notification requested1 linked violation
June 23, 2011State Violation/Reminder Notice1 linked violation
June 23, 2011State Violation/Reminder Notice2 linked violations
May 15, 2009State Compliance achieved1 linked violation

Contact

PARKER, JANA

406-796-2412

WIBUAX, MT 59353