Public Water Partners

CHOTEAU, MT · Teton County

CHOTEAU CITY OF Water System

Consumer Confidence Report status

CHOTEAU CITY OF 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 CHOTEAU CITY OF.

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

CHOTEAU CITY OF is one of 123 community water systems in Montana in the 501 to 3,300 people size category, serving 1,691 people from groundwater.

As of August 1, 2026, its federal record holds 12 entries between 1994 and 2025, all of which EPA lists as closed.

All 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 Groundwater Rule, and the Stage 2 Disinfectants and Disinfection Byproducts Rule.

Violation history

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2025 – December 31, 2025

    Resolved

  • Monitoring and Reporting (DBP)

    —

    TTHM

    September 1, 2014 – August 31, 2015

    Resolved

  • Monitoring and Reporting (DBP)

    —

    Total Haloacetic Acids (HAA5)

    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 – September 20, 2011

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    August 1, 1998 – August 31, 1998

    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)

    May 1, 1995 – May 31, 1995

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    July 1, 1994 – July 31, 1994

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

Common questions

Is CHOTEAU CITY OF required to publish a Consumer Confidence Report?

Yes. CHOTEAU CITY OF 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 CHOTEAU CITY OF’s next Consumer Confidence Report due?

CHOTEAU CITY OF’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does CHOTEAU CITY OF have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for CHOTEAU CITY OF.

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

FROWNFELDER, TOM

406-466-2510

CHOTEAU, MT 59422