SWEET GRASS, MT · Toole County

SWEETGRASS WATER USERS ASSN Water System

Current status

1 item on record is open and awaiting resolution as of July 4, 2026. None are health-based violations — open items of this kind are most often monitoring or reporting requirements, not water-safety findings. Full details are in the violation history below.

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): MT0000340
System type: Community Water System
Population served: 100
Service connections: 97
Ownership: privately owned
Water source: surface water (rivers, lakes, or reservoirs)

Violation history

Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2025 – August 14, 2025
Resolved
Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2024
Unaddressed
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2024 – March 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2024 – March 31, 2024
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2024 – January 31, 2024
Resolved
Monitoring and Reporting (DBP)
—
TTHM
October 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
October 1, 2022 – December 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2022 – March 31, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2022 – March 31, 2022
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2021 – January 25, 2022
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
July 1, 2021 – September 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
July 1, 2021 – September 30, 2021
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2020 – August 14, 2020
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2020 – August 14, 2020
Resolved
Monitoring, Routine (RTCR)
—
Revised Total Coliform Rule
January 1, 2017 – January 31, 2017
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
December 1, 2015 – December 31, 2015
Resolved
Maximum Contaminant Level Violation, Average
Health-based
TTHM
July 1, 2015 – September 30, 2015
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2015 – March 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2015 – March 31, 2015
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
January 1, 2015 – January 31, 2015
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
July 1, 2014 – September 30, 2014
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
July 1, 2014 – July 31, 2014
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2013 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2013 – December 31, 2013
Resolved
Monitoring and Reporting (DBP)
—
Chlorine
October 1, 2013 – December 31, 2013
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
June 1, 2012 – June 30, 2012
Resolved
Lead Consumer Notice
—
Lead and Copper Rule
January 1, 2012 – July 11, 2012
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
April 1, 2011 – April 30, 2011
Resolved
Monitoring, Routine Major (TCR)
—
Coliform (TCR)
November 1, 2004 – November 30, 2004
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2004 – August 30, 2004
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2004 – June 30, 2004
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 2004 – September 21, 2005
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2003 – September 21, 2005
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 2003 – June 2, 2006
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
January 1, 2003 – June 30, 2003
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2002 – June 2, 2006
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
January 1, 2002 – June 30, 2002
Resolved
Monitoring, Regular
—
Asbestos
January 1, 2002 – December 31, 2010
Archived
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 2002 – June 2, 2006
Resolved
Water Quality Parameter M/R
—
Lead and Copper Rule
July 1, 2001 – December 31, 2001
Resolved
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
January 1, 2001 – June 2, 2006
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
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2000 – October 23, 2002
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
Initial Tap Sampling for Pb and Cu
—
Lead and Copper Rule
July 1, 2000 – June 2, 2006
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)
February 1, 1999 – February 28, 1999
Resolved
Monitoring, Regular
—
Arsenic
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Barium
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Cadmium
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Chromium
January 1, 1994 – December 31, 1994
Resolved
Monitoring, Regular
—
Fluoride
January 1, 1994 – December 31, 1994
Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Period	Violation	Contaminant / rule	Health-based	Status
July 1, 2025 – August 14, 2025	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
October 1, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2024 – March 31, 2024	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2024 – January 31, 2024	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
October 1, 2022 – December 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2022 – March 31, 2022	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2022 – March 31, 2022	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
December 30, 2021 – January 25, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2021 – September 30, 2021	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2020 – August 14, 2020	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2020 – August 14, 2020	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2017 – January 31, 2017	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	—	Resolved
December 1, 2015 – December 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2015 – September 30, 2015	Maximum Contaminant Level Violation, Average	TTHM	Health-based	Resolved
January 1, 2015 – March 31, 2015	Monitoring and Reporting (DBP)	TTHM	—	Resolved
January 1, 2015 – March 31, 2015	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
January 1, 2015 – January 31, 2015	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2014 – September 30, 2014	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
July 1, 2014 – July 31, 2014	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
October 1, 2013 – December 31, 2013	Monitoring and Reporting (DBP)	Chlorine	—	Resolved
June 1, 2012 – June 30, 2012	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 2012 – July 11, 2012	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
April 1, 2011 – April 30, 2011	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
November 1, 2004 – November 30, 2004	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
July 1, 2004 – August 30, 2004	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2004 – June 30, 2004	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
January 1, 2004 – September 21, 2005	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
July 1, 2003 – September 21, 2005	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 2003 – June 2, 2006	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
January 1, 2003 – June 30, 2003	Water Quality Parameter M/R	Lead and Copper Rule	—	Resolved
July 1, 2002 – June 2, 2006	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	—	Resolved
July 1, 2002 – December 31, 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
January 1, 2002 – December 31, 2010	Monitoring, Regular	Asbestos	—	Archived
January 1, 2002 – June 2, 2006	Initial Tap Sampling for Pb and Cu	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 2, 2006	Initial Tap Sampling for Pb and Cu	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 – October 23, 2002	Consumer Confidence Report Complete Failure to Report	Consumer Confidence 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
July 1, 2000 – June 2, 2006	Initial Tap Sampling for Pb and Cu	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
February 1, 1999 – February 28, 1999	Monitoring, Routine Major (TCR)	Coliform (TCR)	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Arsenic	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Barium	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Cadmium	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Chromium	—	Resolved
January 1, 1994 – December 31, 1994	Monitoring, Regular	Fluoride	—	Resolved

Resolved addressed and confirmed by the stateUnaddressed no corrective action on record yetArchived closed in EPA's records (typically due to age or a data correction)

Enforcement actions

August 14, 2025State Compliance achieved1 linked violation
August 14, 2025State Public Notification requested1 linked violation
August 14, 2025State Violation/Reminder Notice2 linked violations
November 7, 2024State Public Notification requested1 linked violation
November 7, 2024State Violation/Reminder Notice1 linked violation
April 25, 2024State Public Notification received2 linked violations
April 18, 2024State Public Notification requested2 linked violations
April 18, 2024State Compliance achieved2 linked violations
April 18, 2024State Violation/Reminder Notice2 linked violations
February 27, 2024State Violation/Reminder Notice1 linked violation
February 27, 2024State Compliance achieved1 linked violation
February 27, 2024State Public Notification requested1 linked violation
February 6, 2023State Compliance achieved2 linked violations
January 20, 2023State Violation/Reminder Notice2 linked violations
January 20, 2023State Public Notification requested2 linked violations
June 27, 2022State Compliance achieved2 linked violations
April 14, 2022State Violation/Reminder Notice2 linked violations
April 14, 2022State Public Notification requested2 linked violations
January 25, 2022State Compliance achieved1 linked violation
January 4, 2022State Violation/Reminder Notice1 linked violation
December 8, 2021State Compliance achieved2 linked violations
October 20, 2021State Violation/Reminder Notice2 linked violations
October 20, 2021State Public Notification requested2 linked violations
August 14, 2020State Compliance achieved2 linked violations
July 17, 2020State Violation/Reminder Notice2 linked violations
July 17, 2020State Public Notification requested2 linked violations
February 23, 2017State Public Notification received1 linked violation
February 15, 2017State Public Notification requested1 linked violation
February 15, 2017State Violation/Reminder Notice1 linked violation
February 10, 2017State Compliance achieved1 linked violation
January 22, 2016State Compliance achieved1 linked violation
January 15, 2016State Violation/Reminder Notice1 linked violation
January 15, 2016State Public Notification requested1 linked violation
November 13, 2015State Compliance achieved1 linked violation
August 7, 2015State Violation/Reminder Notice1 linked violation
August 7, 2015State Public Notification requested1 linked violation
May 29, 2015State Compliance achieved2 linked violations
April 17, 2015State Public Notification requested2 linked violations
April 17, 2015State Violation/Reminder Notice2 linked violations
March 4, 2015State Public Notification received1 linked violation
February 13, 2015State Violation/Reminder Notice1 linked violation
February 13, 2015State Public Notification requested1 linked violation
February 6, 2015State Compliance achieved1 linked violation
November 25, 2014State Compliance achievedgeneral compliance action — not tied to a specific violation on record
November 25, 2014State Compliance achieved1 linked violation
November 13, 2014State Public Notification received1 linked violation
October 17, 2014State Public Notification requested1 linked violation
October 17, 2014State Violation/Reminder Noticegeneral compliance action — not tied to a specific violation on record
October 17, 2014State Public Notification requestedgeneral compliance action — not tied to a specific violation on record
October 17, 2014State Violation/Reminder Notice1 linked violation
September 8, 2014State Public Notification received1 linked violation
August 22, 2014State Compliance achieved1 linked violation
August 15, 2014State Public Notification requested1 linked violation
August 15, 2014State Violation/Reminder Notice1 linked violation
February 10, 2014State Public Notification received1 linked violation
January 24, 2014State Compliance achieved1 linked violation
January 24, 2014State Compliance achieved1 linked violation
January 24, 2014State Compliance achieved1 linked violation
January 16, 2014State Violation/Reminder Notice1 linked violation
January 16, 2014State Public Notification requested1 linked violation
January 16, 2014State Violation/Reminder Notice1 linked violation
January 16, 2014State Public Notification requested1 linked violation
January 16, 2014State Public Notification requested1 linked violation
January 16, 2014State Violation/Reminder Notice1 linked violation
July 30, 2012State Public Notification received1 linked violation
July 24, 2012State Violation/Reminder Notice1 linked violation
July 23, 2012State Compliance achieved1 linked violation
July 23, 2012State Compliance achieved1 linked violation
July 19, 2012State Public Notification requested1 linked violation
July 13, 2012State Public Notification requested1 linked violation
July 13, 2012State Public Notification requested1 linked violation
July 13, 2012State Violation/Reminder Notice1 linked violation
July 13, 2012State Violation/Reminder Notice1 linked violation
July 11, 2012State Compliance achieved1 linked violation
May 17, 2011State Public Notification requested1 linked violation
May 17, 2011State Public Notification requested1 linked violation
May 17, 2011State Violation/Reminder Notice1 linked violation
May 17, 2011State Violation/Reminder Notice1 linked violation
May 6, 2011State Compliance achieved1 linked violation
May 15, 2009State Compliance achieved1 linked violation
May 15, 2009State Compliance achieved1 linked violation
May 15, 2009State Compliance achieved1 linked violation
December 31, 2008State Compliance achieved7 linked violations
August 26, 2008State Compliance achieved1 linked violation
August 17, 2008State Public Notification requested1 linked violation
August 17, 2008State Violation/Reminder Notice1 linked violation
September 5, 2006State Public Notification received5 linked violations
June 2, 2006State Compliance achieved6 linked violations
January 3, 2005State Public Notification requested28 linked violations
January 3, 2005State Public Notification requested7 linked violations
January 3, 2005State Public Notification requested5 linked violations
January 3, 2005State Violation/Reminder Notice5 linked violations
January 3, 2005State Public Notification requested1 linked violation
January 3, 2005State Violation/Reminder Notice2 linked violations
January 3, 2005State Violation/Reminder Notice1 linked violation
January 3, 2005State Violation/Reminder Notice7 linked violations
January 3, 2005State Public Notification requested3 linked violations
January 3, 2005State Violation/Reminder Notice3 linked violations
January 3, 2005State Violation/Reminder Notice58 linked violations
January 2, 2005State Violation/Reminder Notice1 linked violation
September 20, 2004State Other4 linked violations
August 30, 2004State Compliance achieved27 linked violations
October 23, 2002State Compliance achieved1 linked violation
April 3, 1999State Public Notification requested1 linked violation
April 3, 1999State Violation/Reminder Notice1 linked violation
September 9, 1994State Formal Notice of Violation issued5 linked violations

Contact

ROARK, BRENDA

406-335-4150

SWEET GRASS, MT 59484