Is MILLER COLONY required to publish a Consumer Confidence Report?

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

MILLER 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.

CHOTEAU, MT · Teton County

MILLER COLONY Water System

Consumer Confidence Report status

MILLER 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 MILLER 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): MT0001649
System type: Community Water System
Population served: 84
Service connections: 11
Ownership: privately owned
Water source: groundwater (wells)

MILLER COLONY is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 84 people from groundwater.

As of August 1, 2026, its federal record holds 64 entries between 2003 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.

Of the 64, 61 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, volatile organic chemicals, and the Lead and Copper Rule.

Violation history

Treatment Technique (SWTR and GWR)
Health-based
Groundwater Rule
January 1, 2016 – January 31, 2016
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
June 1, 2014 – June 30, 2014
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – August 9, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
October 1, 2012 – October 12, 2012
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
April 1, 2012 – June 30, 2012
Resolved
Monitoring, Regular
—
Chlordane
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Pentachlorophenol
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Endrin
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
BHC-GAMMA
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Methoxychlor
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Toxaphene
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Dalapon
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
OXAMYL
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Simazine
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Picloram
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Dinoseb
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Aldicarb sulfone
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Carbofuran
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Aldicarb
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Atrazine
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
LASSO
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Heptachlor
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Heptachlor epoxide
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
2,4,5-TP
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
2,4-D
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
April 1, 2012 – June 26, 2012
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
April 1, 2012 – June 30, 2012
Resolved
Monitoring, Regular
—
Tetrachloroethylene
January 1, 2012 – December 31, 2012
Resolved
OCCT/SOWT Study/Recommendation
Health-based
Lead and Copper Rule
January 1, 2012 – May 1, 2012
Resolved
Initial, Follow-up, or Routine Source Water M/R
—
Lead and Copper Rule
January 1, 2012 – May 1, 2012
Resolved
Monitoring, Regular
—
Carbon tetrachloride
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
1,2-Dichloropropane
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Trichloroethylene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
1,1,2-Trichloroethane
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
CHLOROBENZENE
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Benzene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Toluene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Ethylbenzene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Styrene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
1,2,4-Trichlorobenzene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
cis-1,2-Dichloroethylene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Xylenes, Total
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
DICHLOROMETHANE
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
o-Dichlorobenzene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
p-Dichlorobenzene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Vinyl chloride
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
1,1-Dichloroethylene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
trans-1,2-Dichloroethylene
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
1,2-Dichloroethane
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
1,1,1-Trichloroethane
January 1, 2012 – December 31, 2012
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2011 – September 30, 2011
Resolved
Monitoring, Regular
—
Gross Alpha, Excl. Radon and U
July 1, 2011 – September 30, 2011
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2011 – June 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2008 – July 31, 2008
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2006 – December 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2006 – December 31, 2006
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2004 – December 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
March 1, 2003 – March 31, 2003
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2016 – January 31, 2016	Treatment Technique (SWTR and GWR)	Groundwater Rule	Health-based	Resolved
June 1, 2014 – June 30, 2014	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2013 – August 9, 2013	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2012 – October 12, 2012	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 1, 2012 – June 30, 2012	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Chlordane	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Pentachlorophenol	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Endrin	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	BHC-GAMMA	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Methoxychlor	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Toxaphene	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Dalapon	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	OXAMYL	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Simazine	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Picloram	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Dinoseb	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Aldicarb sulfone	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Carbofuran	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Aldicarb	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Atrazine	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	LASSO	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Heptachlor	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Heptachlor epoxide	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	2,4,5-TP	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	2,4-D	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
April 1, 2012 – June 26, 2012	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
April 1, 2012 – June 30, 2012	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Tetrachloroethylene	—	Resolved
January 1, 2012 – May 1, 2012	OCCT/SOWT Study/Recommendation	Lead and Copper Rule	Health-based	Resolved
January 1, 2012 – May 1, 2012	Initial, Follow-up, or Routine Source Water M/R	Lead and Copper Rule	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Carbon tetrachloride	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	1,2-Dichloropropane	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Trichloroethylene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	1,1,2-Trichloroethane	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	CHLOROBENZENE	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Benzene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Toluene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Ethylbenzene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Styrene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	1,2,4-Trichlorobenzene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	cis-1,2-Dichloroethylene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Xylenes, Total	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	DICHLOROMETHANE	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	o-Dichlorobenzene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	p-Dichlorobenzene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	Vinyl chloride	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	1,1-Dichloroethylene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	trans-1,2-Dichloroethylene	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	1,2-Dichloroethane	—	Resolved
January 1, 2012 – December 31, 2012	Monitoring, Regular	1,1,1-Trichloroethane	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2011 – September 30, 2011	Monitoring, Regular	Gross Alpha, Excl. Radon and U	—	Resolved
January 1, 2011 – June 30, 2011	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2008 – July 31, 2008	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2006 – December 31, 2006	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
March 1, 2003 – March 31, 2003	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 14, 2021State Compliance achieved1 linked violation
January 7, 2021State Violation/Reminder Notice1 linked violation
March 2, 2016State Compliance achieved1 linked violation
February 29, 2016State Public Notification received1 linked violation
February 22, 2016State Public Notification requested1 linked violation
February 22, 2016State Violation/Reminder Notice1 linked violation
February 4, 2015State Compliance achieved1 linked violation
January 26, 2015State Violation/Reminder Notice1 linked violation
August 6, 2014State Public Notification received1 linked violation
July 18, 2014State Compliance achieved1 linked violation
July 15, 2014State Public Notification requested1 linked violation
July 15, 2014State Violation/Reminder Notice1 linked violation
August 9, 2013State Compliance achieved1 linked violation
July 16, 2013State Violation/Reminder Notice1 linked violation
July 1, 2013State Compliance achieved21 linked violations
January 20, 2013State Public Notification received23 linked violations
January 14, 2013State Compliance achieved2 linked violations
January 11, 2013State Violation/Reminder Notice1 linked violation
January 11, 2013State Violation/Reminder Notice1 linked violation
January 11, 2013State Public Notification requested21 linked violations
January 11, 2013State Violation/Reminder Notice21 linked violations
January 11, 2013State Public Notification requested1 linked violation
January 11, 2013State Public Notification requested1 linked violation
October 12, 2012State Compliance achieved1 linked violation
October 5, 2012State Violation/Reminder Notice1 linked violation
July 30, 2012State Compliance achieved2 linked violations
July 16, 2012State Public Notification requested1 linked violation
July 16, 2012State Violation/Reminder Notice1 linked violation
July 16, 2012State Public Notification requested1 linked violation
July 16, 2012State Violation/Reminder Notice1 linked violation
July 16, 2012State Public Notification requested26 linked violations
July 16, 2012State Violation/Reminder Notice26 linked violations
June 26, 2012State Compliance achieved26 linked violations
May 1, 2012State Compliance achieved2 linked violations
April 24, 2012State Violation/Reminder Notice1 linked violation
April 24, 2012State Violation/Reminder Notice1 linked violation
April 24, 2012State Public Notification requested1 linked violation
April 24, 2012State Public Notification requested1 linked violation
November 9, 2011State Violation/Reminder Notice1 linked violation
November 9, 2011State Violation/Reminder Notice1 linked violation
November 9, 2011State Public Notification requested1 linked violation
November 9, 2011State Public Notification requested1 linked violation
November 7, 2011State Compliance achieved2 linked violations
August 9, 2011State Public Notification received1 linked violation
August 1, 2011State Compliance achieved1 linked violation
July 27, 2011State Compliance achieved2 linked violations
July 18, 2011State Violation/Reminder Notice1 linked violation
July 18, 2011State Public Notification requested2 linked violations
July 18, 2011State Violation/Reminder Notice2 linked violations
July 18, 2011State Public Notification requested1 linked violation
July 18, 2011State Violation/Reminder Notice1 linked violation
July 18, 2011State Boil Water Order1 linked violation
January 7, 2009State Compliance achieved3 linked violations
December 26, 2008State Compliance achieved3 linked violations
December 26, 2008State Compliance achieved4 linked violations
August 21, 2008State Compliance achieved1 linked violation
August 20, 2008State Compliance achieved1 linked violation
August 17, 2008State Violation/Reminder Notice1 linked violation
August 17, 2008State Public Notification requested1 linked violation
August 15, 2008State Violation/Reminder Notice1 linked violation
August 15, 2008State Public Notification requested1 linked violation
February 13, 2008State Compliance achieved4 linked violations
April 29, 2007State Public Notification requested3 linked violations
April 29, 2007State Violation/Reminder Notice3 linked violations
April 3, 2006State Compliance achieved3 linked violations
February 24, 2005State Violation/Reminder Notice2 linked violations
May 13, 2003State Public Notification received2 linked violations
May 13, 2003State Compliance achieved2 linked violations
March 5, 2002State Compliance achieved2 linked violations
March 21, 2001State Public Notification requested3 linked violations
March 21, 2001State Violation/Reminder Notice1 linked violation
March 21, 2001State Violation/Reminder Notice1 linked violation

Common questions

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

HOFER, JACOB J

406-952-5614

CHOTEAU, MT 59422