Is JEFFERSON HILLS WUA required to publish a Consumer Confidence Report?

Yes. JEFFERSON HILLS WUA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is JEFFERSON HILLS WUA’s next Consumer Confidence Report due?

JEFFERSON HILLS WUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

HELENA, MT · Jefferson County

JEFFERSON HILLS WUA Water System

Consumer Confidence Report status

JEFFERSON HILLS WUA must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for JEFFERSON HILLS WUA.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)

JEFFERSON HILLS WUA is one of 123 community water systems in Montana in the 501 to 3,300 people size category, serving 780 people from groundwater.

As of August 1, 2026, its federal record holds 25 entries between 2004 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.

Of the 25, 21 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves synthetic organic chemicals, the Consumer Confidence Rule, and the Total Coliform Rules.

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
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2022 – July 21, 2022
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
—
Total Polychlorinated Biphenyls (PCB)
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
—
Endothall
January 1, 2020 – December 31, 2022
Resolved
Monitoring, Regular
—
LASSO
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
2,4-D
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
—
HEXACHLOROBENZENE
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Asbestos
January 1, 2011 – December 30, 2013
Resolved
Monitoring, Regular
—
Methoxychlor
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Simazine
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
January 1, 2011 – December 22, 2011
Resolved
Monitoring, Regular
—
Aldicarb
January 1, 2011 – December 22, 2011
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2010 – May 13, 2011
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
July 1, 2004 – July 31, 2004
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
July 1, 2022 – July 21, 2022	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	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	Total Polychlorinated Biphenyls (PCB)	—	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	Endothall	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	LASSO	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	2,4-D	—	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	HEXACHLOROBENZENE	—	Resolved
January 1, 2011 – December 30, 2013	Monitoring, Regular	Asbestos	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Methoxychlor	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Simazine	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
January 1, 2011 – December 22, 2011	Monitoring, Regular	Aldicarb	—	Resolved
January 1, 2010 – May 13, 2011	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2004 – July 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

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 21, 2022State Compliance achieved2 linked violations
July 11, 2022State Violation/Reminder Notice2 linked violations
December 22, 2020State Violation/Reminder Notice2 linked violations
December 22, 2020State Public Notification requested2 linked violations
December 7, 2020State Compliance achieved2 linked violations
January 24, 2014State Violation/Reminder Notice27 linked violations
January 24, 2014State Violation/Reminder Notice3 linked violations
January 24, 2014State Public Notification requested3 linked violations
January 24, 2014State Public Notification requested27 linked violations
July 22, 2013State Public Notification received4 linked violations
December 22, 2011State Compliance achieved28 linked violations
January 13, 2011State Violation/Reminder Notice2 linked violations
January 6, 2009State Compliance achieved10 linked violations
January 19, 2008State Public Notification requested3 linked violations
January 19, 2008State Violation/Reminder Notice2 linked violations
September 20, 2006State Public Notification requested3 linked violations
September 26, 2004State Public Notification requested6 linked violations
August 20, 1992State Violation/Reminder Notice2 linked violations

Common questions

Is JEFFERSON HILLS WUA required to publish a Consumer Confidence Report?: Yes. JEFFERSON HILLS WUA is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is JEFFERSON HILLS WUA’s next Consumer Confidence Report due?: JEFFERSON HILLS WUA’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does JEFFERSON HILLS WUA have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for JEFFERSON HILLS WUA.
What is a Consumer Confidence Report?: A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

QUIGLEY, DUNCAN J

406-422-9194

HELENA, MT 59601