MISSOULA, MT · Missoula County

SHELBY ADDITION WATER DISTRICT Water System

Current status

No open violations on record as of July 4, 2026.

This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 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)

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
Monitoring, Source Water (GWR)
—
E. COLI
September 1, 2012 – October 25, 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)
July 1, 2006 – July 31, 2006
Resolved
Maximum Contaminant Level Violation, Monthly (TCR)
Health-based
Coliform (TCR)
December 1, 2005 – December 31, 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
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2000 – December 31, 2000
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
May 1, 1999 – May 31, 1999
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
September 1, 2012 – October 25, 2012	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
October 1, 2008 – October 31, 2008	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
July 1, 2006 – July 31, 2006	Maximum Contaminant Level Violation, Monthly (TCR)	Coliform (TCR)	Health-based	Resolved
December 1, 2005 – December 31, 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
January 1, 2000 – December 31, 2000	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
May 1, 1999 – May 31, 1999	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 Violation/Reminder Notice1 linked violation
October 18, 2012State Public Notification requested1 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 achieved4 linked violations
February 27, 2008State Compliance achieved1 linked violation
February 27, 2008State Compliance achieved2 linked violations
June 4, 2007State Violation/Reminder Notice1 linked violation
July 24, 2006State Violation/Reminder Notice1 linked violation
July 24, 2006State Public Notification requested2 linked violations
December 19, 2005State Public Notification received2 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
October 21, 2004State Public Notification requested3 linked violations
November 9, 2002State Public Notification requested1 linked violation
November 9, 2002State Violation/Reminder Notice3 linked violations
June 27, 2002State Compliance achieved4 linked violations
October 1, 2001State Compliance achieved1 linked violation
September 24, 2001State Public Notification requested1 linked violation
September 24, 2001State Violation/Reminder Notice1 linked violation
February 5, 2001State Public Notification received5 linked violations
December 2, 2000State Public Notification requested1 linked violation
May 28, 2000State Violation/Reminder Notice2 linked violations

Contact

MEFFORD, ANDY

406-728-1880

MISSOULA, MT 59806