CHOTEAU, MT · Teton County

CHOTEAU CITY OF 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): MT0000175
System type: Community Water System
Population served: 1,691
Service connections: 713
Ownership: local government
Water source: groundwater (wells)

Violation history

Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2025 – December 31, 2025
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2014 – August 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2014 – August 31, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2012 – October 31, 2012
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2011 – September 20, 2011
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2011 – September 20, 2011
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2011 – August 7, 2012
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2011 – September 20, 2011
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
June 1, 1998 – June 30, 1998
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
April 1, 1997 – April 30, 1997
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 1994 – July 31, 1994
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1993 – November 30, 1993
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
October 1, 1993 – October 31, 1993
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2025 – December 31, 2025	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
September 1, 2014 – August 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
September 1, 2014 – August 31, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2012 – October 31, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
September 1, 2011 – September 20, 2011	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
September 1, 2011 – September 20, 2011	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
September 1, 2011 – August 7, 2012	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
September 1, 2011 – September 20, 2011	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
June 1, 1998 – June 30, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
April 1, 1997 – April 30, 1997	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
July 1, 1994 – July 31, 1994	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
November 1, 1993 – November 30, 1993	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1993 – October 31, 1993	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

January 21, 2026State Public Notification received1 linked violation
January 13, 2026State Compliance achieved1 linked violation
January 13, 2026State Public Notification requested1 linked violation
January 13, 2026State Violation/Reminder Notice1 linked violation
August 9, 2016State Compliance achieved2 linked violations
October 19, 2015State Public Notification requested2 linked violations
October 19, 2015State Violation/Reminder Notice2 linked violations
November 20, 2012State Compliance achieved1 linked violation
November 20, 2012State Public Notification received1 linked violation
November 15, 2012State Violation/Reminder Notice1 linked violation
November 15, 2012State Public Notification requested1 linked violation
August 7, 2012State Compliance achieved1 linked violation
November 14, 2011State Public Notification requested1 linked violation
November 14, 2011State Public Notification requested1 linked violation
November 14, 2011State Violation/Reminder Notice1 linked violation
November 14, 2011State Violation/Reminder Notice1 linked violation
November 14, 2011State Public Notification requested1 linked violation
November 14, 2011State Violation/Reminder Notice1 linked violation
November 14, 2011State Public Notification requested1 linked violation
November 14, 2011State Violation/Reminder Notice1 linked violation
September 20, 2011State Compliance achieved2 linked violations
September 20, 2011State Compliance achieved1 linked violation
September 20, 2011State Compliance achieved1 linked violation
December 31, 2008State Compliance achieved11 linked violations
May 14, 2001State Compliance achieved1 linked violation

Contact

FROWNFELDER, TOM

406-466-2510

CHOTEAU, MT 59422