Is MOUNTAIN ACRES MB HM PK required to publish a Consumer Confidence Report?

Yes. MOUNTAIN ACRES MB HM PK 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 MOUNTAIN ACRES MB HM PK’s next Consumer Confidence Report due?

MOUNTAIN ACRES MB HM PK’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.

LINCOLN, MT · Fergus County

MOUNTAIN ACRES MB HM PK Water System

Consumer Confidence Report status

MOUNTAIN ACRES MB HM PK 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 MOUNTAIN ACRES MB HM PK.

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): MT0003809
System type: Community Water System
Population served: 320
Service connections: 201
Ownership: privately owned
Water source: groundwater (wells)

MOUNTAIN ACRES MB HM PK is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 320 people from groundwater.

As of August 1, 2026, its federal record holds 22 entries between 1995 and 2025, all of which EPA lists as closed.

Of the 22, 12 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 the Total Coliform Rules, the Lead and Copper Rule, and the Consumer Confidence Rule.

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2025 – December 31, 2025
Archived
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2025 – December 31, 2025
Archived
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
September 1, 2024 – September 30, 2024
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2014 – December 30, 2019
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2012 – May 4, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – November 18, 2012
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 2011 – November 30, 2011
Resolved
Failure to Notify Other PWS
—
Groundwater Rule
November 1, 2011 – February 14, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2011 – October 31, 2011
Resolved
Failure to Notify Other PWS
—
Groundwater Rule
October 1, 2011 – February 14, 2012
Resolved
Failure to Notify Other PWS
—
Groundwater Rule
September 1, 2011 – February 14, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2011 – September 30, 2011
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2011 – December 30, 2019
Resolved
Monitoring, Regular
—
Asbestos
January 1, 2011 – October 23, 2013
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2009 – April 30, 2009
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2007 – September 30, 2007
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – May 2, 2007
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2004 – September 19, 2007
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1998 – March 1, 2001
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 1997 – December 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1995 – August 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1995 – July 31, 1995
Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
January 1, 2025 – December 31, 2025	Monitoring and Reporting (DBP)	TTHM	—	Archived
September 1, 2024 – September 30, 2024	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
January 1, 2014 – December 30, 2019	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2012 – May 4, 2018	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2012 – November 18, 2012	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
November 1, 2011 – November 30, 2011	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2011 – February 14, 2012	Failure to Notify Other PWS	Groundwater Rule	—	Resolved
October 1, 2011 – October 31, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2011 – February 14, 2012	Failure to Notify Other PWS	Groundwater Rule	—	Resolved
September 1, 2011 – February 14, 2012	Failure to Notify Other PWS	Groundwater Rule	—	Resolved
September 1, 2011 – September 30, 2011	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2011 – December 30, 2019	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2011 – October 23, 2013	Monitoring, Regular	Asbestos	—	Resolved
April 1, 2009 – April 30, 2009	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2007 – September 30, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2006 – May 2, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2004 – September 19, 2007	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 1998 – March 1, 2001	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 1997 – December 31, 2000	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
August 1, 1995 – August 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1995 – July 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state

Enforcement actions

November 5, 2025State Public Notification received2 linked violations
October 22, 2025State Public Notification requested2 linked violations
October 22, 2025State Violation/Reminder Notice2 linked violations
October 22, 2024State Compliance achieved1 linked violation
October 17, 2024State Violation/Reminder Notice1 linked violation
October 17, 2024State Public Notification requested1 linked violation
December 30, 2019State Compliance achieved1 linked violation
December 30, 2019State Compliance achieved1 linked violation
May 4, 2018State Compliance achieved1 linked violation
January 24, 2014State Public Notification requested1 linked violation
January 24, 2014State Violation/Reminder Notice1 linked violation
January 23, 2014State Violation/Reminder Notice1 linked violation
October 23, 2013State Compliance achieved1 linked violation
November 18, 2012State Compliance achieved1 linked violation
November 14, 2012State Violation/Reminder Notice1 linked violation
July 12, 2012State Public Notification requested1 linked violation
July 12, 2012State Violation/Reminder Notice1 linked violation
February 21, 2012State Public Notification received1 linked violation
February 21, 2012State Public Notification received1 linked violation
February 14, 2012State Compliance achieved3 linked violations
January 5, 2012State Violation/Reminder Notice2 linked violations
January 5, 2012State Public Notification requested2 linked violations
December 20, 2011State Public Notification requested1 linked violation
December 20, 2011State Violation/Reminder Notice1 linked violation
December 13, 2011State Compliance achieved1 linked violation
December 13, 2011State Compliance achieved1 linked violation
December 13, 2011State Compliance achieved1 linked violation
November 22, 2011State Public Notification requested1 linked violation
November 22, 2011State Violation/Reminder Notice1 linked violation
October 24, 2011State Violation/Reminder Notice1 linked violation
October 24, 2011State Violation/Reminder Notice1 linked violation
October 24, 2011State Public Notification requested1 linked violation
October 24, 2011State Violation/Reminder Notice1 linked violation
October 24, 2011State Violation/Reminder Notice1 linked violation
October 24, 2011State Public Notification requested1 linked violation
October 24, 2011State Public Notification requested1 linked violation
September 21, 2011State Public Notification received1 linked violation
September 20, 2011State Public Notification requested1 linked violation
September 20, 2011State Violation/Reminder Notice1 linked violation
September 20, 2011State Violation/Reminder Notice1 linked violation
February 15, 2011State Violation/Reminder Notice1 linked violation
November 6, 2009State Compliance achieved3 linked violations
April 21, 2009State Public Notification received1 linked violation
April 14, 2009State Violation/Reminder Notice1 linked violation
April 14, 2009State Public Notification requested1 linked violation
April 14, 2009State Violation/Reminder Notice1 linked violation
October 3, 2007State Public Notification received2 linked violations
September 24, 2007State Violation/Reminder Notice1 linked violation
September 24, 2007State Public Notification requested1 linked violation
September 24, 2007State Violation/Reminder Notice1 linked violation
September 19, 2007State Compliance achieved1 linked violation
May 2, 2007State Compliance achieved1 linked violation
February 5, 2007State Violation/Reminder Notice1 linked violation
January 4, 2005State Public Notification requested1 linked violation
December 31, 2000State Formal Notice of Violation issued1 linked violation
December 31, 2000State Other2 linked violations
December 31, 2000State Compliance achieved3 linked violations
April 18, 2000State Administrative/Compliance Order with penalty issued1 linked violation
December 31, 1999State Compliance achieved2 linked violations

Common questions

Is MOUNTAIN ACRES MB HM PK required to publish a Consumer Confidence Report?: Yes. MOUNTAIN ACRES MB HM PK 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 MOUNTAIN ACRES MB HM PK’s next Consumer Confidence Report due?: MOUNTAIN ACRES MB HM PK’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MOUNTAIN ACRES MB HM PK have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show no open violations for MOUNTAIN ACRES MB HM PK.
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

WILSON, JOSEPH E

406-209-1699

LINCOLN, MT 59639-0476