HELENA, MT · Jefferson County

JEFFERSON HILLS WUA 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): MT0002978
System type: Community Water System
Population served: 780
Service connections: 72
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2023 – August 14, 2023
Resolved
Treatment Technique, Level 1 Assessment (RTCR)
Health-based
Revised Total Coliform Rule
June 3, 2023 – March 28, 2024
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
November 18, 2020 – December 7, 2020
Resolved
Monitoring, Regular
—
ETHYLENE DIBROMIDE
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
CYANIDE
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Diquat
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
Total Polychlorinated Biphenyls (PCB)
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2020 – December 31, 2022
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2013 – July 31, 2013
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Aldicarb sulfone
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Carbofuran
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
LASSO
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Heptachlor
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Pentachlorophenol
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Chlordane
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Simazine
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Picloram
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Endrin
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
BHC-GAMMA
January 1, 2011 – December 22, 2011
Resolved
Maximum Contaminant Level Violation, Acute (TCR)
Health-based
Coliform (TCR)
September 1, 2006 – September 30, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2004 – August 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2004 – July 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1992 – July 31, 1992
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2023 – August 14, 2023	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 3, 2023 – March 28, 2024	Treatment Technique, Level 1 Assessment (RTCR)	Revised Total Coliform Rule	Health-based	Resolved
November 18, 2020 – December 7, 2020	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	ETHYLENE DIBROMIDE	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	CYANIDE	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Diquat	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	Total Polychlorinated Biphenyls (PCB)	—	Resolved
January 1, 2020 – December 31, 2022	Monitoring, Regular	1,2-DIBROMO-3-CHLOROPROPANE	—	Resolved
July 1, 2013 – July 31, 2013	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Aldicarb sulfone	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Carbofuran	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	LASSO	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Heptachlor	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Pentachlorophenol	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Chlordane	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Simazine	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Picloram	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Endrin	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	BHC-GAMMA	—	Resolved
September 1, 2006 – September 30, 2006	Maximum Contaminant Level Violation, Acute (TCR)	Coliform (TCR)	Health-based	Resolved
August 1, 2004 – August 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2004 – July 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 1992 – July 31, 1992	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

February 4, 2025State Violation/Reminder Notice2 linked violations
March 28, 2024State Compliance achieved2 linked violations
August 14, 2023State Compliance achieved2 linked violations
June 22, 2023State Compliance achieved8 linked violations
June 21, 2023State Public Notification requested8 linked violations
June 19, 2023State Violation/Reminder Notice7 linked violations
July 11, 2022State Violation/Reminder Notice2 linked violations
December 22, 2020State Violation/Reminder Notice2 linked violations
January 24, 2014State Violation/Reminder Notice3 linked violations
January 24, 2014State Public Notification requested27 linked violations
December 30, 2013State Compliance achieved3 linked violations
July 22, 2013State Public Notification received4 linked violations
December 22, 2011State Compliance achieved28 linked violations
May 13, 2011State Compliance achieved2 linked violations
September 14, 2010State Compliance achieved2 linked violations
January 19, 2008State Public Notification requested3 linked violations
January 19, 2008State Violation/Reminder Notice2 linked violations
September 20, 2006State Boil Water Order3 linked violations
September 20, 2006State Public Notification requested3 linked violations
September 26, 2004State Public Notification requested6 linked violations
September 26, 2004State Violation/Reminder Notice6 linked violations
August 12, 2004State Public Notification requested3 linked violations
August 12, 2004State Violation/Reminder Notice6 linked violations

Contact

QUIGLEY, DUNCAN J

406-422-9194

HELENA, MT 59601