CUT BANK, MT · Glacier County
BIG SKY COLONY CUT BANK Water System
Consumer Confidence Report status
BIG SKY COLONY CUT BANK 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 BIG SKY COLONY CUT BANK.
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)
- MT0001647
- System type
- Community Water System
- Population served
- 107
- Service connections
- 15
- Ownership
- privately owned
- Water source
- groundwater (wells)
BIG SKY COLONY CUT BANK is one of 1,084 community water systems in Montana in the 500 or fewer people size category, serving 107 people from groundwater.
As of August 1, 2026, its federal record holds 76 entries between 1995 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
Of the 76, 74 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 volatile organic chemicals, synthetic organic chemicals, and inorganic chemicals.
Violation history
Follow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2023 – August 21, 2024
ResolvedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
May 1, 2020 – May 31, 2020
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Endrin
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Dalapon
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Simazine
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Picloram
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Atrazine
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—LASSO
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—2,4-D
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Chlordane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Diquat
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Endothall
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Glyphosate
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Benzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Toluene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2020 – December 31, 2022
ResolvedMonitoring, Regular
—Styrene
January 1, 2020 – December 31, 2022
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2019 – June 30, 2020
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2018 – August 27, 2018
ResolvedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
February 1, 2016 – February 29, 2016
ResolvedMonitoring of Treatment (SWTR-Unfilt/GWR)
—Groundwater Rule
January 1, 2015 – January 31, 2015
ResolvedMonitoring, Regular
—DICHLOROMETHANE
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—p-Dichlorobenzene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Vinyl chloride
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—1,2-Dichloroethane
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Carbon tetrachloride
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—1,2-Dichloropropane
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Trichloroethylene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Tetrachloroethylene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—CHLOROBENZENE
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Benzene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Toluene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Ethylbenzene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—Styrene
October 1, 2013 – December 31, 2013
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
October 1, 2013 – December 31, 2013
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2010 – December 31, 2010
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2009 – December 9, 2009
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Nitrate-Nitrite
July 1, 2003 – September 30, 2003
ResolvedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
June 1, 1995 – June 30, 1995
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 1, 2023 – August 21, 2024 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| May 1, 2020 – May 31, 2020 | Monitoring of Treatment (SWTR-Unfilt/GWR) | Groundwater Rule | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Endothall | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2020 – December 31, 2022 | Monitoring, Regular | Styrene | — | Resolved |
| October 1, 2019 – June 30, 2020 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| July 1, 2018 – August 27, 2018 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| February 1, 2016 – February 29, 2016 | Monitoring of Treatment (SWTR-Unfilt/GWR) | Groundwater Rule | — | Resolved |
| January 1, 2015 – January 31, 2015 | Monitoring of Treatment (SWTR-Unfilt/GWR) | Groundwater Rule | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | Benzene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | Toluene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | Styrene | — | Resolved |
| October 1, 2013 – December 31, 2013 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2010 – December 31, 2010 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2009 – December 9, 2009 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Antimony, Total | — | Resolved |
| July 1, 2003 – September 30, 2003 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| June 1, 1995 – June 30, 1995 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- August 17, 2023State Compliance achievedgeneral compliance action — not tied to a specific violation on record
- June 21, 2023State Public Notification requested6 linked violations
- February 13, 2023State Compliance achieved23 linked violations
- February 13, 2023State Compliance achieved23 linked violations
- February 13, 2023State Compliance achieved23 linked violations
- February 13, 2023State Compliance achieved23 linked violations
- February 13, 2023State Compliance achieved23 linked violations
- February 13, 2023State Compliance achieved23 linked violations
- February 13, 2023State Compliance achieved23 linked violations
- February 9, 2023State Compliance achieved21 linked violations
- February 9, 2023State Compliance achieved21 linked violations
- February 9, 2023State Compliance achieved21 linked violations
- February 9, 2023State Compliance achieved21 linked violations
- February 9, 2023State Compliance achieved21 linked violations
- February 9, 2023State Compliance achieved21 linked violations
- January 29, 2023State Violation/Reminder Notice23 linked violations
- January 29, 2023State Violation/Reminder Notice21 linked violations
- January 29, 2023State Public Notification requested21 linked violations
- January 29, 2023State Violation/Reminder Notice23 linked violations
- January 29, 2023State Public Notification requested23 linked violations
- January 29, 2023State Violation/Reminder Notice21 linked violations
- January 29, 2023State Public Notification requested21 linked violations
- January 29, 2023State Violation/Reminder Notice23 linked violations
- January 29, 2023State Public Notification requested23 linked violations
- January 29, 2023State Violation/Reminder Notice21 linked violations
- January 29, 2023State Public Notification requested21 linked violations
- January 29, 2023State Public Notification requested23 linked violations
- January 29, 2023State Violation/Reminder Notice21 linked violations
- January 29, 2023State Public Notification requested21 linked violations
- January 29, 2023State Violation/Reminder Notice23 linked violations
- January 29, 2023State Public Notification requested23 linked violations
- January 29, 2023State Violation/Reminder Notice21 linked violations
- January 29, 2023State Public Notification requested21 linked violations
- January 29, 2023State Violation/Reminder Notice23 linked violations
- January 29, 2023State Public Notification requested23 linked violations
- January 29, 2023State Violation/Reminder Notice23 linked violations
- January 29, 2023State Public Notification requested23 linked violations
- January 29, 2023State Violation/Reminder Notice21 linked violations
- January 29, 2023State Public Notification requested21 linked violations
- January 29, 2023State Violation/Reminder Notice23 linked violations
- January 29, 2023State Public Notification requested21 linked violations
- January 29, 2023State Public Notification requested23 linked violations
- July 6, 2020State Public Notification received1 linked violation
- June 30, 2020State Compliance achieved1 linked violation
- June 29, 2020State Public Notification requested1 linked violation
- June 29, 2020State Violation/Reminder Notice1 linked violation
- June 11, 2020State Compliance achieved1 linked violation
- October 23, 2019State Violation/Reminder Notice1 linked violation
- October 23, 2019State Public Notification requested1 linked violation
- August 27, 2018State Compliance achieved1 linked violation
- July 17, 2018State Violation/Reminder Notice1 linked violation
- April 11, 2016State Compliance achieved1 linked violation
- March 17, 2016State Public Notification requested1 linked violation
- March 17, 2016State Violation/Reminder Notice1 linked violation
- February 24, 2015State Compliance achieved1 linked violation
- February 24, 2015State Public Notification received1 linked violation
- February 13, 2015State Violation/Reminder Notice1 linked violation
- February 13, 2015State Public Notification requested1 linked violation
- February 10, 2014State Compliance achieved21 linked violations
- January 24, 2014State Public Notification requested21 linked violations
- January 24, 2014State Violation/Reminder Notice21 linked violations
- July 16, 2012State Public Notification requested2 linked violations
- July 16, 2012State Public Notification requested2 linked violations
- July 16, 2012State Violation/Reminder Notice1 linked violation
- September 30, 2011State Compliance achieved2 linked violations
- February 9, 2011State Public Notification requested2 linked violations
- February 9, 2011State Violation/Reminder Notice4 linked violations
- November 17, 2009State Public Notification requested4 linked violations
- November 12, 2009State Violation/Reminder Notice1 linked violation
- March 17, 2008State Compliance achieved4 linked violations
- February 7, 2008State Public Notification received4 linked violations
- February 6, 2008State Public Notification requested7 linked violations
Common questions
Is BIG SKY COLONY CUT BANK required to publish a Consumer Confidence Report?
- Yes. BIG SKY COLONY CUT BANK 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 BIG SKY COLONY CUT BANK’s next Consumer Confidence Report due?
- BIG SKY COLONY CUT BANK’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does BIG SKY COLONY CUT BANK have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for BIG SKY COLONY CUT BANK.
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
KLEINSASSER, KENNETH E
406-229-0340
CUT BANK, MT 59427