BALLANTINE, MT · Yellowstone County

WORDEN BALLANTINE YELLOWSTONE Water System

Current status

1 open health-based violation on record as of July 4, 2026, alongside 1 other open item(s). See the violation history below for contaminant and status details.

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): MT0000022
System type: Community Water System
Population served: 800
Service connections: 320
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2025 – June 30, 2025
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2025 – March 31, 2025
Archived
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2024
Unaddressed
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2024 – December 26, 2024
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2024 – March 31, 2024
Archived
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – July 18, 2022
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2021 – January 14, 2022
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2021 – June 30, 2021
Archived
Failure to Filter (SWTR)
Health-based
Surface Water Treatment Rule
March 22, 2021
Unaddressed
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2020 – June 30, 2020
Archived
Monitoring, Regular
—
Asbestos
January 1, 2020 – December 31, 2022
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
January 1, 2020 – March 31, 2020
Archived
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2019 – June 30, 2019
Archived
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2018 – October 17, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2017 – December 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2017 – December 31, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2016 – September 30, 2016
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
July 1, 2011 – August 16, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 2008 – August 31, 2008
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2006 – May 9, 2007
Resolved
Monitoring, Regular
—
Styrene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Toluene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2006 – December 31, 2006
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
October 1, 2005 – May 9, 2007
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2004 – May 9, 2007
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
October 1, 2002 – February 4, 2004
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2002 – February 4, 2004
Resolved
Monitoring, Regular
—
Styrene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Barium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Cadmium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Nickel
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Selenium
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Toxaphene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Picloram
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Atrazine
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
LASSO
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4-D
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
2,4,5-TP
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Benzene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Toluene
January 1, 2002 – December 31, 2004
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2002 – December 31, 2004
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
October 1, 2001 – February 4, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1995 – June 30, 1995
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
May 1, 1992 – May 31, 1992
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
April 1, 2025 – June 30, 2025	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
January 1, 2025 – March 31, 2025	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
December 30, 2024	Lead Consumer Notice	Lead and Copper Rule	—	Unaddressed
October 1, 2024 – December 26, 2024	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2024 – March 31, 2024	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
July 1, 2022 – July 18, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
December 30, 2021 – January 14, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 1, 2021 – June 30, 2021	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
March 22, 2021	Failure to Filter (SWTR)	Surface Water Treatment Rule	Health-based	Unaddressed
April 1, 2020 – June 30, 2020	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
January 1, 2020 – December 31, 2022	Monitoring, Regular	Asbestos	—	Resolved
January 1, 2020 – March 31, 2020	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
April 1, 2019 – June 30, 2019	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Archived
October 1, 2018 – October 17, 2018	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2017 – December 31, 2017	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2011 – August 16, 2011	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
August 1, 2008 – August 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2006 – May 9, 2007	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Styrene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Toluene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
October 1, 2005 – May 9, 2007	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
July 1, 2004 – May 9, 2007	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
October 1, 2002 – February 4, 2004	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
July 1, 2002 – February 4, 2004	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Styrene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Barium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Cadmium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Nickel	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Selenium	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Toxaphene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Picloram	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Atrazine	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	LASSO	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4-D	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	2,4,5-TP	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Benzene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Toluene	—	Resolved
January 1, 2002 – December 31, 2004	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2001 – February 4, 2004	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
June 1, 1995 – June 30, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1992 – May 31, 1992	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved

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

Enforcement actions

March 22, 2021State Violation/Reminder Notice189 linked violations

Contact

KUST, SANDRA

406-670-4550

BALLANTINE, MT 59006