Is HILLDALE COLONY required to publish a Consumer Confidence Report?

Yes. HILLDALE COLONY 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 HILLDALE COLONY’s next Consumer Confidence Report due?

HILLDALE COLONY’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.

HAVRE, MT · Hill County

HILLDALE COLONY Water System

Consumer Confidence Report status

HILLDALE COLONY 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 HILLDALE COLONY.

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): MT0001774
System type: Community Water System
Population served: 79
Service connections: 2
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

HILLDALE COLONY is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 79 people from surface water.

As of August 1, 2026, its federal record holds 27 entries between 1997 and 2024, all of which EPA lists as closed.

Of the 27, 24 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 Stage 2 Disinfectants and Disinfection Byproducts Rule, the Lead and Copper Rule, and the Total Coliform Rules.

Violation history

Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
October 1, 2024 – October 31, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2024 – January 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2019 – September 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2019 – September 30, 2020
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – July 24, 2018
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
April 1, 2018 – May 4, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
August 31, 2017 – August 30, 2018
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
August 31, 2017 – August 30, 2018
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2017 – August 29, 2017
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2016 – July 15, 2016
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
August 31, 2015 – August 30, 2016
Resolved
Monitoring and Reporting (DBP)
—
TTHM
August 31, 2015 – August 30, 2016
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2015 – December 2, 2015
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2014 – February 25, 2015
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2010 – October 25, 2010
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 2009 – April 30, 2009
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2008 – August 13, 2008
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 2008 – May 31, 2008
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Ethylbenzene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Styrene
October 1, 2005 – December 31, 2005
Resolved
Monitoring, Regular
—
Trichloroethylene
October 1, 2005 – December 31, 2005
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2002 – September 22, 2014
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 1998 – July 31, 1998
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1997 – June 30, 1997
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 1997 – April 30, 1997
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2024 – October 31, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2024 – January 31, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2019 – September 30, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2019 – September 30, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2018 – July 24, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2018 – May 4, 2018	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
August 31, 2017 – August 30, 2018	Monitoring and Reporting (DBP)	TTHM	—	Resolved
August 31, 2017 – August 30, 2018	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2017 – August 29, 2017	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
July 1, 2016 – July 15, 2016	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
August 31, 2015 – August 30, 2016	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
August 31, 2015 – August 30, 2016	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2015 – December 2, 2015	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
December 30, 2014 – February 25, 2015	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2010 – October 25, 2010	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
April 1, 2009 – April 30, 2009	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 2008 – August 13, 2008	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2008 – May 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Ethylbenzene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Styrene	—	Resolved
October 1, 2005 – December 31, 2005	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2002 – September 22, 2014	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
July 1, 1998 – July 31, 1998	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1997 – June 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
April 1, 1997 – April 30, 1997	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

December 5, 2024State Violation/Reminder Notice1 linked violation
December 5, 2024State Compliance achieved1 linked violation
December 5, 2024State Public Notification requested1 linked violation
March 13, 2024State Compliance achieved1 linked violation
March 13, 2024State Public Notification requested1 linked violation
March 13, 2024State Violation/Reminder Notice1 linked violation
August 18, 2021State Compliance achieved2 linked violations
October 19, 2020State Violation/Reminder Notice2 linked violations
October 19, 2020State Public Notification requested2 linked violations
September 3, 2019State Compliance achieved2 linked violations
October 18, 2018State Public Notification requested2 linked violations
October 18, 2018State Violation/Reminder Notice2 linked violations
July 24, 2018State Compliance achieved1 linked violation
July 17, 2018State Violation/Reminder Notice1 linked violation
May 4, 2018State Compliance achieved1 linked violation
April 20, 2018State Violation/Reminder Notice1 linked violation
August 29, 2017State Compliance achieved2 linked violations
August 29, 2017State Compliance achieved1 linked violation
July 18, 2017State Public Notification requested1 linked violation
July 18, 2017State Violation/Reminder Notice1 linked violation
October 20, 2016State Public Notification requested2 linked violations
October 20, 2016State Violation/Reminder Notice2 linked violations
August 23, 2016State Violation/Reminder Notice1 linked violation
July 15, 2016State Compliance achieved1 linked violation
July 15, 2016State Public Notification requested1 linked violation
December 2, 2015State Compliance achieved1 linked violation
October 19, 2015State Public Notification requested1 linked violation
October 19, 2015State Violation/Reminder Notice1 linked violation
February 25, 2015State Compliance achieved1 linked violation
January 26, 2015State Violation/Reminder Notice1 linked violation
September 22, 2014State Compliance achieved1 linked violation
November 21, 2011State Public Notification received1 linked violation
November 12, 2011State Public Notification requested1 linked violation
November 12, 2011State Violation/Reminder Notice1 linked violation
October 25, 2010State Compliance achieved1 linked violation
October 23, 2010State Public Notification requested1 linked violation
October 23, 2010State Violation/Reminder Notice1 linked violation
November 3, 2009State Compliance achieved1 linked violation
January 6, 2009State Compliance achieved10 linked violations
August 13, 2008State Violation/Reminder Notice1 linked violation
August 13, 2008State Compliance achieved1 linked violation
August 13, 2008State Public Notification requested1 linked violation
June 13, 2008State Public Notification requested1 linked violation
June 13, 2008State Violation/Reminder Notice1 linked violation
August 10, 2007State Compliance achieved2 linked violations
February 14, 2006State Compliance achieved21 linked violations
February 10, 2006State Violation/Reminder Notice21 linked violations
February 10, 2006State Public Notification requested21 linked violations
December 3, 2002State Compliance achieved1 linked violation
September 24, 2001State Public Notification requested1 linked violation
September 24, 2001State Violation/Reminder Notice1 linked violation
August 27, 1999State Violation/Reminder Notice2 linked violations
May 29, 1997State Violation/Reminder Notice2 linked violations
September 22, 1994State Violation/Reminder Notice1 linked violation
May 24, 1994State Violation/Reminder Notice7 linked violations

Common questions

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

KLEINSASSER, SAM S

406-398-5342

HAVRE, MT 59501