MELSTONE, MT · Musselshell County

MELSTONE TOWN OF 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): MT0000290
System type: Community Water System
Population served: 170
Service connections: 92
Ownership: local government
Water source: groundwater (wells)

Violation history

Follow-up Or Routine LCR Tap M/R
—
Lead and Copper Rule
October 1, 2024
Unaddressed
Lead Consumer Notice
—
Lead and Copper Rule
December 30, 2021 – January 13, 2022
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
May 1, 2019 – May 31, 2019
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2018 – August 16, 2018
Resolved
Monitoring and Reporting (DBP)
—
TTHM
September 1, 2016 – August 31, 2019
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
September 1, 2016 – August 31, 2019
Resolved
Monitoring of Treatment (SWTR-Unfilt/GWR)
—
Groundwater Rule
July 1, 2015 – July 31, 2015
Resolved
Monitoring, Regular
—
Heptachlor
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
LASSO
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Atrazine
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Aldicarb
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Carbofuran
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Aldicarb sulfone
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Dinoseb
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Aldicarb sulfoxide
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Benzo(a)pyrene
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
HEXACHLOROBENZENE
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
2,4,5-TP
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
2,4-D
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Heptachlor epoxide
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) phthalate
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Picloram
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Hexachlorocyclopentadiene
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Endrin
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
BHC-GAMMA
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Methoxychlor
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Toxaphene
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Dalapon
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Di(2-ethylhexyl) adipate
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
OXAMYL
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Simazine
July 1, 2013 – September 25, 2013
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
October 1, 2012 – December 18, 2012
Resolved
Monitoring, Regular
—
Combined Radium (-226 and -228)
July 1, 2012 – September 30, 2012
Resolved
Consumer Confidence Report Inadequate Reporting
—
Consumer Confidence Rule
October 1, 2011 – November 8, 2011
Resolved
Monitoring, Regular
—
Barium
January 1, 2011 – September 25, 2013
Resolved
Treatment Technique Precursor Removal
Health-based
CARBON, TOTAL
January 1, 2011 – March 31, 2011
Resolved
Monitoring, Regular
—
Chromium
January 1, 2011 – September 25, 2013
Resolved
Monitoring, Regular
—
Fluoride
January 1, 2011 – September 25, 2013
Resolved
Monitoring, Regular
—
Mercury
January 1, 2011 – September 25, 2013
Resolved
Monitoring, Regular
—
Nickel
January 1, 2011 – September 25, 2013
Resolved
Monitoring, Regular
—
Beryllium, Total
January 1, 2011 – September 25, 2013
Resolved
Monitoring, Regular
—
Thallium, Total
January 1, 2011 – September 25, 2013
Resolved
Monitoring, Regular
—
Selenium
January 1, 2011 – September 25, 2013
Resolved
Monitoring, Regular
—
Asbestos
January 1, 2011 – December 31, 2013
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2008 – August 13, 2008
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
August 1, 2007 – August 31, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2007 – May 31, 2007
Resolved
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
April 1, 2007 – June 30, 2007
Archived
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
April 1, 2007 – April 30, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2007 – April 30, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
February 1, 2007 – February 28, 2007
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
February 1, 2007 – February 28, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
January 1, 2007 – January 31, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
November 1, 2006 – November 30, 2006
Resolved
Consumer Confidence Report Complete Failure to Report
—
Consumer Confidence Rule
July 1, 2006 – March 7, 2007
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
May 1, 2006 – May 31, 2006
Resolved
Monitoring, Turbidity (Enhanced SWTR)
—
Interim Enhanced Surface Water Treatment Rule
May 1, 2006 – May 31, 2006
Resolved
Monitoring of Treatment (SWTR-Filter)
—
Surface Water Treatment Rule
April 1, 2006 – April 30, 2006
Resolved
Monitoring and Reporting (DBP)
—
TTHM
January 1, 2006 – March 31, 2006
Archived
Monitoring and Reporting (DBP)
—
Total Haloacetic Acids (HAA5)
January 1, 2006 – March 31, 2006
Archived
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2004 – June 30, 2004
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2004 – June 30, 2004
Resolved
Monitoring and Reporting (DBP)
—
CARBON, TOTAL
April 1, 2004 – June 30, 2004
Resolved
Monitoring, Repeat Major (TCR)
—
Coliform (TCR)
July 1, 1995 – July 31, 1995
Resolved

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

Period	Violation	Contaminant / rule	Health-based	Status
October 1, 2024	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	—	Unaddressed
December 30, 2021 – January 13, 2022	Lead Consumer Notice	Lead and Copper Rule	—	Resolved
May 1, 2019 – May 31, 2019	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2018 – August 16, 2018	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
September 1, 2016 – August 31, 2019	Monitoring and Reporting (DBP)	TTHM	—	Resolved
September 1, 2016 – August 31, 2019	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Resolved
July 1, 2015 – July 31, 2015	Monitoring of Treatment (SWTR-Unfilt/GWR)	Groundwater Rule	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Heptachlor	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	LASSO	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Atrazine	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Aldicarb	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Carbofuran	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Aldicarb sulfone	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Dinoseb	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Aldicarb sulfoxide	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Benzo(a)pyrene	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	HEXACHLOROBENZENE	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	2,4,5-TP	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	2,4-D	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Heptachlor epoxide	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Di(2-ethylhexyl) phthalate	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Picloram	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Hexachlorocyclopentadiene	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Endrin	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	BHC-GAMMA	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Methoxychlor	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Toxaphene	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Dalapon	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Di(2-ethylhexyl) adipate	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	OXAMYL	—	Resolved
July 1, 2013 – September 25, 2013	Monitoring, Regular	Simazine	—	Resolved
October 1, 2012 – December 18, 2012	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
July 1, 2012 – September 30, 2012	Monitoring, Regular	Combined Radium (-226 and -228)	—	Resolved
October 1, 2011 – November 8, 2011	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	—	Resolved
January 1, 2011 – September 25, 2013	Monitoring, Regular	Barium	—	Resolved
January 1, 2011 – March 31, 2011	Treatment Technique Precursor Removal	CARBON, TOTAL	Health-based	Resolved
January 1, 2011 – September 25, 2013	Monitoring, Regular	Chromium	—	Resolved
January 1, 2011 – September 25, 2013	Monitoring, Regular	Fluoride	—	Resolved
January 1, 2011 – September 25, 2013	Monitoring, Regular	Mercury	—	Resolved
January 1, 2011 – September 25, 2013	Monitoring, Regular	Nickel	—	Resolved
January 1, 2011 – September 25, 2013	Monitoring, Regular	Beryllium, Total	—	Resolved
January 1, 2011 – September 25, 2013	Monitoring, Regular	Thallium, Total	—	Resolved
January 1, 2011 – September 25, 2013	Monitoring, Regular	Selenium	—	Resolved
January 1, 2011 – December 31, 2013	Monitoring, Regular	Asbestos	—	Resolved
July 1, 2008 – August 13, 2008	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
August 1, 2007 – August 31, 2007	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2007 – May 31, 2007	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
April 1, 2007 – June 30, 2007	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
April 1, 2007 – April 30, 2007	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2007 – April 30, 2007	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 2007 – February 28, 2007	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
February 1, 2007 – February 28, 2007	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
January 1, 2007 – January 31, 2007	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
November 1, 2006 – November 30, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
July 1, 2006 – March 7, 2007	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	—	Resolved
May 1, 2006 – May 31, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
May 1, 2006 – May 31, 2006	Monitoring, Turbidity (Enhanced SWTR)	Interim Enhanced Surface Water Treatment Rule	—	Resolved
April 1, 2006 – April 30, 2006	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	—	Resolved
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	TTHM	—	Archived
January 1, 2006 – March 31, 2006	Monitoring and Reporting (DBP)	Total Haloacetic Acids (HAA5)	—	Archived
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
April 1, 2004 – June 30, 2004	Monitoring and Reporting (DBP)	CARBON, TOTAL	—	Resolved
July 1, 1995 – July 31, 1995	Monitoring, Repeat Major (TCR)	Coliform (TCR)	—	Resolved

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

Enforcement actions

November 7, 2024State Violation/Reminder Notice1 linked violation
November 7, 2024State Public Notification requested1 linked violation
May 5, 2023State Compliance achieved1 linked violation
January 13, 2022State Compliance achieved1 linked violation
January 4, 2022State Violation/Reminder Notice1 linked violation
September 22, 2021State Compliance achieved1 linked violation
August 26, 2021State Compliance achieved2 linked violations
April 21, 2021State Compliance achieved1 linked violation
April 21, 2021State Public Notification requested1 linked violation
October 20, 2020State Violation/Reminder Notice1 linked violation
October 20, 2020State Public Notification requested1 linked violation
October 18, 2019State Public Notification requested2 linked violations
October 18, 2019State Violation/Reminder Notice2 linked violations
June 29, 2019State Compliance achieved1 linked violation
June 13, 2019State Public Notification requested1 linked violation
June 13, 2019State Violation/Reminder Notice1 linked violation
August 16, 2018State Compliance achieved1 linked violation
July 17, 2018State Violation/Reminder Notice1 linked violation
February 1, 2018State Public Notification received1 linked violation
January 14, 2018State Compliance achieved1 linked violation
January 11, 2018State Public Notification requested1 linked violation
January 11, 2018State Violation/Reminder Notice1 linked violation
August 24, 2015State Compliance achieved1 linked violation
August 19, 2015State Violation/Reminder Notice1 linked violation
August 19, 2015State Public Notification requested1 linked violation
April 7, 2014State Public Notification received1 linked violation
March 14, 2014State Public Notification requested1 linked violation
March 14, 2014State Violation/Reminder Notice1 linked violation
March 11, 2014State Compliance achieved1 linked violation
February 3, 2014State Compliance achieved1 linked violation
January 24, 2014State Violation/Reminder Notice10 linked violations
January 24, 2014State Public Notification requested1 linked violation
January 24, 2014State Violation/Reminder Notice1 linked violation
January 24, 2014State Public Notification requested10 linked violations
December 20, 2013State Violation/Reminder Notice1 linked violation
October 15, 2013State Violation/Reminder Notice26 linked violations
October 15, 2013State Public Notification requested26 linked violations
September 25, 2013State Compliance achieved36 linked violations
January 11, 2013State Violation/Reminder Notice1 linked violation
January 11, 2013State Public Notification requested1 linked violation
January 11, 2013State Public Notification requested1 linked violation
January 11, 2013State Violation/Reminder Notice1 linked violation
December 18, 2012State Compliance achieved2 linked violations
October 30, 2012State Compliance achieved2 linked violations
October 15, 2012State Violation/Reminder Notice19 linked violations
October 15, 2012State Public Notification requested2 linked violations
October 15, 2012State Violation/Reminder Notice1 linked violation
October 15, 2012State Public Notification requested1 linked violation
June 15, 2012State Public Notification requested2 linked violations
November 8, 2011State Compliance achieved10 linked violations
October 31, 2011State Violation/Reminder Notice3 linked violations
October 31, 2011State Public Notification requested1 linked violation
July 19, 2011State Compliance achieved3 linked violations
April 26, 2011State Public Notification requested3 linked violations
October 30, 2010State Public Notification requested7 linked violations
January 7, 2009State Compliance achieved3 linked violations
September 2, 2008Federal Final Administrative Order issued32 linked violations
August 13, 2008State Compliance achieved3 linked violations
June 5, 2008State Other8 linked violations
August 6, 2007State Violation/Reminder Notice14 linked violations
July 31, 2007State Violation/Reminder Notice5 linked violations
July 31, 2007State Public Notification requested6 linked violations
July 31, 2007State Violation/Reminder Notice4 linked violations
July 2, 2007State Public Notification requested4 linked violations
July 2, 2007State Violation/Reminder Notice7 linked violations
June 12, 2007State Violation/Reminder Notice12 linked violations
April 29, 2007State Public Notification requested8 linked violations
April 29, 2007State Violation/Reminder Notice7 linked violations
April 6, 2007State Public Notification requested4 linked violations
March 21, 2007State Violation/Reminder Notice6 linked violations
March 21, 2007State Violation/Reminder Notice3 linked violations
March 21, 2007State Public Notification requested6 linked violations
March 21, 2007State Public Notification requested6 linked violations
February 21, 2007State Violation/Reminder Notice3 linked violations
November 6, 2006State Compliance achieved17 linked violations
August 7, 2006State Public Notification requested5 linked violations
August 3, 2006State Violation/Reminder Notice4 linked violations
August 3, 2006State Violation/Reminder Notice4 linked violations
July 28, 2006State Compliance achieved7 linked violations
July 28, 2006State Public Notification received1 linked violation
July 28, 2006State Compliance achieved3 linked violations
July 22, 2006State Public Notification requested23 linked violations
July 18, 2006State Violation/Reminder Notice8 linked violations
July 16, 2006State Public Notification requested1 linked violation
July 12, 2006State Violation/Reminder Notice1 linked violation
July 10, 2006State Public Notification received1 linked violation
July 10, 2006State Compliance achieved2 linked violations
July 10, 2006State Public Notification received5 linked violations
June 19, 2006State Violation/Reminder Notice3 linked violations
June 19, 2006State Public Notification requested2 linked violations
February 24, 2005State Public Notification requested4 linked violations
February 24, 2005State Violation/Reminder Notice3 linked violations
February 24, 2005State Public Notification requested4 linked violations
February 24, 2005State Violation/Reminder Notice8 linked violations
February 24, 2005State Violation/Reminder Notice1 linked violation
February 24, 2005State Violation/Reminder Notice6 linked violations

Contact

NEWMAN, STEPHANIE

406-358-2301

MELSTONE, MT 59054