Is SHELBY ADDITION WATER DISTRICT required to publish a Consumer Confidence Report?

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

SHELBY ADDITION 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.

MISSOULA, MT · Missoula County

SHELBY ADDITION WATER DISTRICT Water System

Consumer Confidence Report status

SHELBY ADDITION 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 no open violations for SHELBY ADDITION 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): MT0002800
System type: Community Water System
Population served: 145
Service connections: 65
Ownership: privately owned
Water source: groundwater (wells)

SHELBY ADDITION WATER DISTRICT is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 145 people from groundwater.

As of August 1, 2026, its federal record holds 12 entries between 1995 and 2014, all of which EPA lists as closed. Nothing has been added since 2014.

Of the 12, 5 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, inorganic chemicals, and the Groundwater Rule.

Violation history

Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
August 1, 2014 – August 31, 2014
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2012 – October 25, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
September 1, 2012 – September 30, 2012
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2008 – October 31, 2008
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
May 1, 2007 – May 31, 2007
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
April 1, 2005 – April 30, 2005
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
October 1, 2004 – October 31, 2004
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2004 – December 31, 2004
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
November 1, 2002 – November 30, 2002
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 1996 – November 30, 1996
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
February 1, 1995 – February 28, 1995
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
August 1, 2014 – August 31, 2014	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
September 1, 2012 – October 25, 2012	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
September 1, 2012 – September 30, 2012	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2008 – October 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
May 1, 2007 – May 31, 2007	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
April 1, 2005 – April 30, 2005	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
October 1, 2004 – October 31, 2004	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2004 – December 31, 2004	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
November 1, 2002 – November 30, 2002	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
January 1, 2000 – December 31, 2000	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
November 1, 1996 – November 30, 1996	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
February 1, 1995 – February 28, 1995	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

July 24, 2018State Compliance achieved1 linked violation
July 17, 2018State Violation/Reminder Notice1 linked violation
September 23, 2014State Compliance achieved1 linked violation
August 20, 2014State Public Notification requested1 linked violation
August 20, 2014State Violation/Reminder Notice1 linked violation
August 20, 2014State Violation/Reminder Notice1 linked violation
October 25, 2012State Compliance achieved2 linked violations
October 19, 2012State Compliance achieved1 linked violation
October 18, 2012State Public Notification requested1 linked violation
October 18, 2012State Public Notification requested1 linked violation
October 18, 2012State Violation/Reminder Notice1 linked violation
October 18, 2012State Violation/Reminder Notice1 linked violation
October 2, 2012State Public Notification received1 linked violation
October 1, 2012State Violation/Reminder Notice1 linked violation
October 1, 2012State Public Notification requested1 linked violation
October 1, 2012State Violation/Reminder Notice1 linked violation
May 7, 2010State Compliance achieved6 linked violations
October 10, 2008State Violation/Reminder Notice1 linked violation
August 5, 2008State Public Notification requested1 linked violation
August 5, 2008State Violation/Reminder Notice3 linked violations
July 31, 2008State Compliance achieved1 linked violation
February 27, 2008State Compliance achieved1 linked violation
February 27, 2008State Compliance achieved1 linked violation
February 27, 2008State Compliance achieved2 linked violations
February 27, 2008State Compliance achieved4 linked violations
June 4, 2007State Violation/Reminder Notice1 linked violation
July 24, 2006State Violation/Reminder Notice4 linked violations
July 24, 2006State Violation/Reminder Notice1 linked violation
December 19, 2005State Public Notification received2 linked violations
December 10, 2005State Violation/Reminder Notice4 linked violations
December 10, 2005State Public Notification requested2 linked violations
December 10, 2005State Violation/Reminder Notice1 linked violation
April 15, 2005State Public Notification received1 linked violation
April 8, 2005State Public Notification requested2 linked violations
April 8, 2005State Violation/Reminder Notice2 linked violations
April 8, 2005State Violation/Reminder Notice14 linked violations
October 21, 2004State Public Notification requested3 linked violations
October 21, 2004State Violation/Reminder Notice5 linked violations
March 13, 2003State Compliance achieved3 linked violations
November 9, 2002State Violation/Reminder Notice2 linked violations
November 9, 2002State Public Notification requested1 linked violation
July 10, 2002State Public Notification received1 linked violation
January 19, 2002State Violation/Reminder Notice1 linked violation
October 1, 2001State Compliance achieved1 linked violation
September 24, 2001State Public Notification requested1 linked violation
September 24, 2001State Violation/Reminder Notice1 linked violation
December 30, 1996State Violation/Reminder Notice7 linked violations
March 24, 1995State Violation/Reminder Notice5 linked violations

Common questions

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

MEFFORD, ANDY

406-728-1880

MISSOULA, MT 59806