FORT SHAW, MT · Cascade County

TWO BUTTES WATER USERS ASSN 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): MT0000580
System type: Community Water System
Population served: 525
Service connections: 126
Ownership: privately owned
Water source: groundwater (wells)

Violation history

Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2019 – September 30, 2020
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2019 – September 30, 2020
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2017 – November 13, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2017 – September 30, 2017
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2017 – January 29, 2018
Resolved
Monitoring, Source Water (GWR)
—
E. COLI
March 8, 2017 – March 10, 2017
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2016 – September 30, 2016
Resolved
Sample Siting Plan Errors (RTCR)
—
Revised Total Coliform Rule
April 2, 2016 – February 20, 2018
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2015 – November 2, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2015 – November 2, 2015
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2014 – February 5, 2015
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2014 – February 5, 2015
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2014 – January 23, 2014
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2013 – February 5, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2013 – September 30, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2013 – February 5, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2013 – June 30, 2013
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2012 – February 20, 2018
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2012 – February 20, 2018
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2012 – June 30, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2011 – June 20, 2011
Resolved
Monitoring, Regular
—
Nitrate-Nitrite
January 1, 2011 – June 27, 2011
Resolved
Monitoring, Regular
—
Asbestos
January 1, 2011 – January 2, 2013
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2010 – October 28, 2010
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2010 – September 26, 2013
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2010 – April 5, 2011
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2009 – June 30, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2009 – June 30, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
April 1, 2009 – June 30, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2009 – March 31, 2009
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
January 1, 2009 – March 31, 2009
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2004 – September 27, 2005
Resolved
Maximum Contaminant Level Violation, Single Sample
Health-based
Combined Radium (-226 and -228)
October 1, 2002 – December 31, 2002
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
August 1, 1999 – August 31, 1999
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
August 1, 1998 – August 31, 1998
Resolved

Resolved addressed and confirmed by the state

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2019 – September 30, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
October 1, 2019 – September 30, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2017 – November 13, 2017	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2017 – September 30, 2017	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2017 – January 29, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
March 8, 2017 – March 10, 2017	Monitoring, Source Water (GWR)	E. COLI	—	Resolved
July 1, 2016 – September 30, 2016	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 2, 2016 – February 20, 2018	Sample Siting Plan Errors (RTCR)	Revised Total Coliform Rule	—	Resolved
October 1, 2015 – November 2, 2015	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2015 – November 2, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
October 1, 2014 – February 5, 2015	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2014 – February 5, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
January 1, 2014 – January 23, 2014	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
October 1, 2013 – February 5, 2015	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2013 – September 30, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2013 – February 5, 2015	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
April 1, 2013 – June 30, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2012 – February 20, 2018	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
July 1, 2012 – February 20, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
June 1, 2012 – June 30, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
June 1, 2011 – June 20, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2011 – June 27, 2011	Monitoring, Regular	Nitrate-Nitrite	—	Resolved
January 1, 2011 – January 2, 2013	Monitoring, Regular	Asbestos	—	Resolved
October 1, 2010 – October 28, 2010	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
October 1, 2010 – September 26, 2013	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
January 1, 2010 – April 5, 2011	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
April 1, 2009 – June 30, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
January 1, 2009 – March 31, 2009	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2004 – September 27, 2005	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Resolved
October 1, 2002 – December 31, 2002	Maximum Contaminant Level Violation, Single Sample	Combined Radium (-226 and -228)	Health-based	Resolved
August 1, 1999 – August 31, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
August 1, 1998 – August 31, 1998	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved

Resolved addressed and confirmed by the state

Enforcement actions

August 10, 2021State Compliance achieved2 linked violations
October 19, 2020State Violation/Reminder Notice2 linked violations
October 19, 2020State Public Notification requested2 linked violations
February 20, 2018State Compliance achieved2 linked violations
February 20, 2018State Compliance achieved1 linked violation
February 20, 2018State Compliance achieved1 linked violation
January 29, 2018State Compliance achieved1 linked violation
January 22, 2018State Compliance achieved1 linked violation
November 13, 2017State Compliance achieved1 linked violation
October 26, 2017State Violation/Reminder Notice1 linked violation
October 26, 2017State Public Notification requested1 linked violation
October 17, 2017State Violation/Reminder Notice1 linked violation
July 20, 2017State Violation/Reminder Notice1 linked violation
March 15, 2017State Public Notification requested1 linked violation
March 15, 2017State Violation/Reminder Notice1 linked violation
March 10, 2017State Compliance achieved1 linked violation
January 12, 2017State Compliance achieved1 linked violation
January 4, 2017State Public Notification requested1 linked violation
January 4, 2017State Violation/Reminder Notice1 linked violation
November 14, 2016State Public Notification requested1 linked violation
November 14, 2016State Violation/Reminder Notice1 linked violation
November 2, 2015State Compliance achieved1 linked violation
November 2, 2015State Compliance achieved1 linked violation
October 19, 2015State Violation/Reminder Notice1 linked violation
July 15, 2015State Violation/Reminder Notice1 linked violation
February 5, 2015State Compliance achieved1 linked violation
February 5, 2015State Compliance achieved1 linked violation
February 5, 2015State Compliance achieved1 linked violation
February 5, 2015State Compliance achieved1 linked violation
October 27, 2014State Violation/Reminder Notice1 linked violation
July 14, 2014State Violation/Reminder Notice1 linked violation
January 27, 2014State Compliance achieved1 linked violation
January 24, 2014State Public Notification requested1 linked violation
January 24, 2014State Violation/Reminder Notice1 linked violation
January 23, 2014State Violation/Reminder Notice1 linked violation
January 23, 2014State Compliance achieved1 linked violation
January 14, 2014State Compliance achieved1 linked violation
December 20, 2013State Violation/Reminder Notice1 linked violation
October 17, 2013State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 17, 2013State Violation/Reminder Notice1 linked violation
October 17, 2013State Public Notification requested1 linked violation
October 17, 2013State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
September 26, 2013State Compliance achieved1 linked violation
July 16, 2013State Violation/Reminder Notice1 linked violation
July 16, 2013State Violation/Reminder Notice1 linked violation
July 16, 2013State Public Notification requested1 linked violation
January 2, 2013State Compliance achieved1 linked violation
November 14, 2012State Violation/Reminder Notice1 linked violation
October 31, 2012State Public Notification requested1 linked violation
October 31, 2012State Violation/Reminder Notice1 linked violation
July 13, 2012State Violation/Reminder Notice1 linked violation
July 13, 2012State Violation/Reminder Notice1 linked violation
July 13, 2012State Public Notification requested1 linked violation
July 13, 2012State Public Notification requested1 linked violation
July 12, 2012State Violation/Reminder Notice1 linked violation
July 12, 2012State Public Notification requested1 linked violation
July 11, 2012State Compliance achieved1 linked violation
July 11, 2012State Compliance achieved1 linked violation
March 26, 2012State Violation/Reminder Notice1 linked violation
February 14, 2012State Violation/Reminder Notice1 linked violation
February 14, 2012State Public Notification requested1 linked violation
July 20, 2011State Public Notification requested1 linked violation
July 20, 2011State Violation/Reminder Notice1 linked violation
June 27, 2011State Compliance achieved1 linked violation
June 20, 2011State Compliance achieved1 linked violation
April 5, 2011State Compliance achieved1 linked violation
February 9, 2011State Violation/Reminder Notice1 linked violation
January 14, 2011State Violation/Reminder Notice1 linked violation
October 28, 2010State Compliance achieved1 linked violation
October 23, 2010State Violation/Reminder Notice1 linked violation
October 23, 2010State Public Notification requested1 linked violation
August 4, 2009State Public Notification requested5 linked violations
August 4, 2009State Violation/Reminder Notice12 linked violations
August 4, 2009State Public Notification requested12 linked violations
August 4, 2009State Public Notification requested2 linked violations
May 15, 2009State Compliance achieved2 linked violations
May 15, 2009State Compliance achieved2 linked violations
April 10, 2009State Compliance achieved3 linked violations
June 2, 2004State Violation/Reminder Notice3 linked violations
October 17, 2002State Compliance achieved1 linked violation
October 16, 2002State Public Notification received1 linked violation
July 6, 2002State Violation/Reminder Notice1 linked violation
July 6, 2002State Public Notification requested1 linked violation
October 4, 1999State Violation/Reminder Notice2 linked violations

Contact

JOHNSON, JUSTIN S

Phone not on record

FORT SHAW, MT 59443