Public Water Partners

KALISPELL, MT · Flathead County

AP WILLIAMS Water System

Consumer Confidence Report status

AP WILLIAMS 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 AP WILLIAMS.

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)
MT0001671
System type
Community Water System
Population served
280
Service connections
54
Ownership
privately owned
Water source
groundwater (wells)

AP WILLIAMS is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 280 people from groundwater.

As of August 1, 2026, its federal record holds 5 entries between 1981 and 2022, all of which EPA lists as closed. Nothing has been added since 2022.

Of the 5, 4 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 inorganic chemicals, the Total Coliform Rules, and the Consumer Confidence Rule.

Violation history

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2022 – July 6, 2022

    Resolved

  • Monitoring, Regular

    —

    Nitrate-Nitrite

    January 1, 2003 – December 31, 2003

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    July 1, 1997 – July 31, 1997

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    May 1, 1992 – May 31, 1992

    Resolved

  • Monitoring, Regular

    —

    Mercury

    October 1, 1981 – September 30, 1982

    Archived

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

Enforcement actions

Common questions

Is AP WILLIAMS required to publish a Consumer Confidence Report?

Yes. AP WILLIAMS 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 AP WILLIAMS’s next Consumer Confidence Report due?

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

Does AP WILLIAMS have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for AP WILLIAMS.

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

WILLIAMS LLC, AP

406-393-2127

KALISPELL, MT 59903