Is MT MOONLIGHT BASIN required to publish a Consumer Confidence Report?

Yes. MT MOONLIGHT BASIN 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 MT MOONLIGHT BASIN’s next Consumer Confidence Report due?

MT MOONLIGHT BASIN’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.

BELGRADE, MT · Madison County

MT MOONLIGHT BASIN Water System

Consumer Confidence Report status

MT MOONLIGHT BASIN 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 MT MOONLIGHT BASIN.

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): MT0004023
System type: Community Water System
Population served: 355
Service connections: 408
Ownership: privately owned
Water source: groundwater (wells)

MT MOONLIGHT BASIN is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 355 people from groundwater.

As of August 1, 2026, its federal record holds 4 entries between 2001 and 2008, all of which EPA lists as closed. Nothing has been added since 2008.

Of the 4, 3 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 and inorganic chemicals.

Violation history

Monitoring, Regular
—
Fluoride
January 1, 2008 – December 31, 2010
Archived
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 2001 – October 31, 2001
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2001 – July 31, 2001
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 2001 – June 30, 2001
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
January 1, 2008 – December 31, 2010	Monitoring, Regular	Fluoride	—	Archived
October 1, 2001 – October 31, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2001 – July 31, 2001	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2001 – June 30, 2001	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

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

Enforcement actions

February 9, 2006State Compliance achieved3 linked violations
January 23, 2006State Public Notification requested5 linked violations
December 25, 2005State Violation/Reminder Notice1 linked violation
July 1, 2002State Compliance achieved1 linked violation
June 26, 2002State Compliance achieved3 linked violations
June 11, 2002State Compliance achieved10 linked violations
December 30, 2001State Public Notification received1 linked violation
December 9, 2001State Violation/Reminder Notice1 linked violation
December 9, 2001State Public Notification requested1 linked violation
November 26, 2001State Public Notification requested1 linked violation
June 22, 2001State Public Notification requested1 linked violation
June 22, 2001State Violation/Reminder Notice1 linked violation
June 14, 2001State Violation/Reminder Notice1 linked violation
June 14, 2001State Public Notification requested1 linked violation
June 14, 2001State Violation/Reminder Notice1 linked violation
May 27, 2001State Violation/Reminder Notice1 linked violation
May 27, 2001State Public Notification requested1 linked violation
May 24, 2001State Public Notification requested1 linked violation
May 24, 2001State Violation/Reminder Notice1 linked violation
May 19, 2001State Violation/Reminder Notice1 linked violation
May 19, 2001State Public Notification requested1 linked violation

Common questions

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

ADAMS, PETE J

406-580-1527

BELGRADE, MT 59714