Is GRANT CREEK WATER USERS ASSOCIATION INC required to publish a Consumer Confidence Report?

Yes. GRANT CREEK WATER USERS ASSOCIATION INC 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 GRANT CREEK WATER USERS ASSOCIATION INC’s next Consumer Confidence Report due?

GRANT CREEK WATER USERS ASSOCIATION INC’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.

MISSOULA, MT · Missoula County

GRANT CREEK WATER USERS ASSOCIATION INC Water System

Consumer Confidence Report status

GRANT CREEK WATER USERS ASSOCIATION INC 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 GRANT CREEK WATER USERS ASSOCIATION INC.

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): MT0003305
System type: Community Water System
Population served: 380
Service connections: 154
Ownership: privately owned
Water source: groundwater (wells)

GRANT CREEK WATER USERS ASSOCIATION INC is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 380 people from groundwater.

As of August 1, 2026, its federal record holds 33 entries between 1992 and 2018, all of which EPA lists as closed. Nothing has been added since 2018.

Of the 33, 29 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, the Total Coliform Rules, and the Consumer Confidence Rule.

Violation history

Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – July 24, 2018
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2012 – March 31, 2012
Resolved
Monitoring, Routine Minor (TCR)
—
Coliform (TCR)
July 1, 2008 – July 31, 2008
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2006 – December 31, 2006
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2005 – December 31, 2005
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2002 – September 20, 2002
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2002 – June 30, 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
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
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
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 Minor (TCR)
—
Coliform (TCR)
August 1, 1998 – August 31, 1998
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
November 1, 1995 – November 30, 1995
Resolved
Monitoring, Repeat Minor (TCR)
—
Coliform (TCR)
July 1, 1995 – July 31, 1995
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
June 1, 1995 – June 30, 1995
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
June 1, 1995 – June 30, 1995
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 1994 – October 31, 1994
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
October 1, 1994 – October 31, 1994
Resolved
Monitoring, Regular
—
Nitrate
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
September 1, 1992 – September 30, 1992
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 1992 – May 31, 1992
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2018 – July 24, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2012 – March 31, 2012	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2008 – July 31, 2008	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
January 1, 2006 – December 31, 2006	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2005 – December 31, 2005	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2002 – September 20, 2002	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2002 – June 30, 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
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
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
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
August 1, 1998 – August 31, 1998	Monitoring, Routine Minor (TCR)	Coliform (TCR)	—	Resolved
November 1, 1995 – November 30, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 1995 – July 31, 1995	Monitoring, Repeat Minor (TCR)	Coliform (TCR)	—	Resolved
June 1, 1995 – June 30, 1995	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
June 1, 1995 – June 30, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 1994 – October 31, 1994	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 1994 – October 31, 1994	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Nitrate	—	Resolved
September 1, 1992 – September 30, 1992	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved
May 1, 1992 – May 31, 1992	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

July 24, 2018State Compliance achieved3 linked violations
April 24, 2012State Public Notification received3 linked violations
April 13, 2012State Public Notification requested1 linked violation
January 6, 2009State Compliance achieved14 linked violations
September 6, 2007State Compliance achieved5 linked violations
August 2, 2007State Violation/Reminder Notice6 linked violations
January 3, 2005State Public Notification requested7 linked violations
January 3, 2005State Public Notification requested6 linked violations
January 3, 2005State Violation/Reminder Notice14 linked violations
September 20, 2002State Compliance achieved25 linked violations
March 11, 1994State Formal Notice of Violation issued7 linked violations
June 9, 1993State Administrative/Compliance Order without penalty issued8 linked violations

Common questions

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

HAYES, STEVE

406-549-3389

MISSOULA, MT 59808