Is WILSALL WATER DISTRICT required to publish a Consumer Confidence Report?

Yes. WILSALL WATER DISTRICT 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 WILSALL WATER DISTRICT’s next Consumer Confidence Report due?

WILSALL WATER DISTRICT’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.

WILSALL, MT · Park County

WILSALL WATER DISTRICT Water System

Consumer Confidence Report status

WILSALL WATER DISTRICT 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 1 open health-based violation for WILSALL WATER DISTRICT.

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): MT0000362
System type: Community Water System
Population served: 250
Service connections: 130
Ownership: local government
Water source: surface water (rivers, lakes, or reservoirs)

WILSALL WATER DISTRICT is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 250 people from surface water.

As of August 1, 2026, its federal record holds 48 entries between 1993 and 2025, of which 1 health-based item remains open.

Of the 48, 41 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 Lead and Copper Rule, inorganic chemicals, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.

Violation history

Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
October 1, 2025 – October 31, 2025
Resolved
Treatment Technique (SWTR and GWR)
Health-based
Surface Water Treatment Rule
September 1, 2025 – September 30, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
September 1, 2025 – September 30, 2025
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2025 – August 31, 2025
Resolved
Failure to Filter (SWTR)
Health-based
Surface Water Treatment Rule
October 3, 2019
Addressed
Maximum Contaminant Level Violation, Single Sample
Health-based
Nitrate-Nitrite
April 1, 2018 – January 17, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2013 – September 30, 2013
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2013 – September 30, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2011 – April 12, 2011
Resolved
Monitoring, Regular
—
Asbestos
January 1, 2011 – December 31, 2013
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2010 – November 3, 2010
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2010 – November 3, 2010
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2008 – December 31, 2008
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
January 1, 2008 – November 4, 2008
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2008 – June 30, 2008
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2008 – December 31, 2008
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2007 – July 31, 2008
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2004 – June 7, 2004
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2004 – December 31, 2004
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2004 – December 31, 2004
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
October 1, 2003 – December 31, 2003
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2003 – June 30, 2003
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2003 – March 31, 2003
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2002 – December 31, 2002
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2001 – December 31, 2001
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2001 – December 31, 2001
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2001 – June 30, 2001
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2001 – June 30, 2001
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2001 – June 30, 2001
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2001 – June 30, 2001
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2001 – June 30, 2001
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2000 – December 31, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2000 – December 31, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2000 – December 31, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2000 – December 31, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2000 – December 31, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2000 – June 30, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2000 – June 30, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2000 – June 30, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2000 – June 30, 2000
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2000 – June 30, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
October 1, 1995 – October 31, 1995
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 1994 – June 30, 1994
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 1993 – August 31, 1993
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 1993 – July 31, 1993
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 1993 – December 31, 1993
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1993 – December 31, 1993
Resolved

Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2025 – October 31, 2025	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2025 – September 30, 2025	Treatment Technique (SWTR and GWR)	Surface Water Treatment Rule	Health-based	Resolved
September 1, 2025 – September 30, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
August 1, 2025 – August 31, 2025	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 3, 2019	Failure to Filter (SWTR)	Surface Water Treatment Rule	Health-based	Addressed
April 1, 2018 – January 17, 2018	Maximum Contaminant Level Violation, Single Sample	Nitrate-Nitrite	Health-based	Resolved
July 1, 2013 – September 30, 2013	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2011 – April 12, 2011	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Asbestos	—	Resolved
October 1, 2010 – November 3, 2010	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2010 – November 3, 2010	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2008 – November 4, 2008	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2008 – June 30, 2008	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2008 – December 31, 2008	Monitoring and Reporting (DBP)	TTHM	—	Resolved
July 1, 2007 – July 31, 2008	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2004 – June 7, 2004	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2004 – December 31, 2004	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2003 – December 31, 2003	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2003 – June 30, 2003	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2003 – March 31, 2003	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
July 1, 2002 – December 31, 2002	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2001 – December 31, 2001	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2001 – December 31, 2001	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2001 – June 30, 2001	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2001 – June 30, 2001	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2001 – June 30, 2001	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2001 – June 30, 2001	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2001 – June 30, 2001	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2000 – December 31, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2000 – December 31, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2000 – December 31, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2000 – December 31, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2000 – December 31, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2000 – June 30, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2000 – June 30, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2000 – June 30, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2000 – June 30, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2000 – June 30, 2000	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
October 1, 1995 – October 31, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 1994 – June 30, 1994	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Nitrate	—	Resolved
August 1, 1993 – August 31, 1993	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1993 – July 31, 1993	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1993 – December 31, 1993	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 1993 – December 31, 1993	Monitoring, Regular	Nitrate	—	Resolved

Resolved addressed and confirmed by the stateAddressed corrective action reported, pending final confirmation

Enforcement actions

November 6, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 6, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 6, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
November 6, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 6, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
November 6, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 6, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 6, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
November 6, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 6, 2025State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 6, 2025State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
November 6, 2025State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 26, 2020State Administrative/Compliance Order without penalty issuedgeneral compliance action — not tied to a specific violation on record
June 17, 2020State Othergeneral compliance action — not tied to a specific violation on record
October 3, 2019State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 3, 2019State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 3, 2019State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 2, 2018State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 2, 2018State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 17, 2018State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 12, 2014State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 12, 2014State Compliance achievedgeneral compliance action — not tied to a specific violation on record
July 7, 2014State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
January 24, 2014State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 24, 2014State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
December 31, 2013State Intentional no-actiongeneral compliance action — not tied to a specific violation on record
October 15, 2013State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 15, 2013State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
April 12, 2011State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 15, 2011State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 3, 2010State Compliance achievedgeneral compliance action — not tied to a specific violation on record
October 23, 2010State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 23, 2010State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 7, 2010State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 7, 2010State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 15, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 15, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 15, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 15, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 15, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 15, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 15, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 15, 2009State Compliance achievedgeneral compliance action — not tied to a specific violation on record
March 18, 2009State Public Notification receivedgeneral compliance action — not tied to a specific violation on record
February 2, 2009State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
February 2, 2009State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 4, 2008State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 5, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
August 5, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 3, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 3, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
July 31, 2008State Compliance achievedgeneral compliance action — not tied to a specific violation on record
January 15, 2008State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 15, 2008State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 10, 2007State Compliance achievedgeneral compliance action — not tied to a specific violation on record
December 18, 2006State Compliance achievedgeneral compliance action — not tied to a specific violation on record
April 4, 2006State Compliance achievedgeneral compliance action — not tied to a specific violation on record
February 24, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
February 24, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 4, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 4, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 3, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 3, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 3, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 3, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 3, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
January 3, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 3, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 3, 2005State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
January 3, 2005State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
August 5, 2004State Compliance achievedgeneral compliance action — not tied to a specific violation on record
August 5, 2004State Compliance achievedgeneral compliance action — not tied to a specific violation on record
June 7, 2004State Compliance achievedgeneral compliance action — not tied to a specific violation on record
May 12, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 12, 2004State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
May 12, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
May 12, 2004State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
November 24, 2003State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 29, 1995State Violation/Reminder Notice1 linked violation
October 17, 1994State Bilateral Compliance Agreement signed999 linked violations
July 21, 1994State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record

Common questions

Is WILSALL WATER DISTRICT required to publish a Consumer Confidence Report?: Yes. WILSALL WATER DISTRICT 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 WILSALL WATER DISTRICT’s next Consumer Confidence Report due?: WILSALL WATER DISTRICT’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does WILSALL WATER DISTRICT have any open drinking water violations on record?: As of August 1, 2026, EPA's federal records show 1 open health-based violation for WILSALL WATER DISTRICT.
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

POPE, DESIREE

Phone not on record

WILSALL, MT 59086