BILLINGS, MT · Yellowstone County
YELLOWSTONE BOYS AND GIRLS RANCH 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)
- MT0000154
- System type
- Community Water System
- Population served
- 240
- Service connections
- 48
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Toluene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Benzene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2021 – December 31, 2021
ResolvedMonitoring, Regular
—Benzene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Nickel
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Selenium
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Toluene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Styrene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Endrin
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Methoxychlor
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Toxaphene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Dalapon
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—OXAMYL
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Simazine
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Picloram
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Carbofuran
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Atrazine
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—LASSO
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Heptachlor
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Heptachlor epoxide
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—2,4-D
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—2,4,5-TP
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Chlordane
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Barium
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Cadmium
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Chromium
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Fluoride
January 1, 2017 – December 31, 2019
ResolvedMonitoring, Regular
—Mercury
January 1, 2017 – December 31, 2019
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate-Nitrite
April 1, 2012 – June 30, 2012
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2012 – March 31, 2012
ResolvedMaximum Contaminant Level Violation, Single Sample
Health-basedNitrate-Nitrite
January 1, 2010 – December 31, 2010
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
July 1, 2008 – July 31, 2008
ResolvedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
June 1, 2008 – June 30, 2008
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2006 – October 22, 2008
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2006 – December 31, 2006
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2006 – December 31, 2006
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2005 – December 31, 2005
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2005 – December 31, 2005
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2005 – December 31, 2005
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2004 – July 1, 2005
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2004 – December 31, 2004
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2004 – December 31, 2004
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2003 – July 1, 2005
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2003 – December 31, 2003
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2002 – July 1, 2005
ResolvedMonitoring, Regular
—Nitrate-Nitrite
January 1, 2002 – December 31, 2002
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Chromium
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Fluoride
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Mercury
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Nickel
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Selenium
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Arsenic
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Heptachlor
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—2,3,7,8-TCDD
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—LASSO
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Aldicarb
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Picloram
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Total Polychlorinated Biphenyls (PCB)
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Pentachlorophenol
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Cadmium
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Barium
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Regular
—Chlordane
January 1, 1999 – December 31, 2001
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 1996 – August 31, 1996
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 1996 – January 31, 1996
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 1995 – August 31, 1995
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
January 1, 1994 – January 31, 1994
ResolvedMonitoring, Regular
—Nitrate
January 1, 1993 – December 31, 1993
Archived
Resolved 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 |
|---|---|---|---|---|
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2021 – December 31, 2021 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Endrin | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Methoxychlor | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Toxaphene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | OXAMYL | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Simazine | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Dinoseb | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Carbofuran | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Heptachlor epoxide | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | 2,4,5-TP | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Chlordane | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2017 – December 31, 2019 | Monitoring, Regular | Mercury | — | Resolved |
| April 1, 2012 – June 30, 2012 | Maximum Contaminant Level Violation, Single Sample | Nitrate-Nitrite | Health-based | Resolved |
| January 1, 2012 – March 31, 2012 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2010 – December 31, 2010 | Maximum Contaminant Level Violation, Single Sample | Nitrate-Nitrite | Health-based | Resolved |
| July 1, 2008 – July 31, 2008 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| June 1, 2008 – June 30, 2008 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 2006 – October 22, 2008 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2006 – December 31, 2006 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2006 – December 31, 2006 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2005 – December 31, 2005 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 2005 – December 31, 2005 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2005 – December 31, 2005 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| July 1, 2004 – July 1, 2005 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2004 – December 31, 2004 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| July 1, 2003 – July 1, 2005 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2003 – December 31, 2003 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| July 1, 2002 – July 1, 2005 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2002 – December 31, 2002 | Monitoring, Regular | Nitrate-Nitrite | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Heptachlor | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | 2,3,7,8-TCDD | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | LASSO | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Aldicarb | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Total Polychlorinated Biphenyls (PCB) | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Pentachlorophenol | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 1999 – December 31, 2001 | Monitoring, Regular | Chlordane | — | Resolved |
| August 1, 1996 – August 31, 1996 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1996 – January 31, 1996 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| August 1, 1995 – August 31, 1995 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1994 – January 31, 1994 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1993 – December 31, 1993 | Monitoring, Regular | Nitrate | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- May 20, 2022State Public Notification received1 linked violation
- April 11, 2022State Compliance achieved21 linked violations
- February 11, 2022State Compliance achieved1 linked violation
- February 2, 2022State Public Notification requested1 linked violation
- February 2, 2022State Violation/Reminder Notice1 linked violation
- January 21, 2022State Public Notification requested21 linked violations
- January 21, 2022State Violation/Reminder Notice21 linked violations
- January 22, 2020State Compliance achieved10 linked violations
- January 22, 2020State Public Notification requested10 linked violations
- January 22, 2020State Violation/Reminder Notice10 linked violations
- January 22, 2020State Compliance achieved23 linked violations
- January 22, 2020State Violation/Reminder Notice23 linked violations
- January 22, 2020State Public Notification requested23 linked violations
- January 22, 2020State Compliance achieved1 linked violation
- January 22, 2020State Public Notification requested1 linked violation
- January 22, 2020State Violation/Reminder Notice1 linked violation
- January 22, 2020State Compliance achieved21 linked violations
- January 22, 2020State Public Notification requested21 linked violations
- January 22, 2020State Violation/Reminder Notice21 linked violations
- October 1, 2012State Compliance achieved1 linked violation
- May 3, 2012State Public Notification received1 linked violation
- April 26, 2012State Public Notification requested1 linked violation
- April 26, 2012State Violation/Reminder Notice1 linked violation
- April 24, 2012State Public Notification received1 linked violation
- April 19, 2012State Compliance achieved1 linked violation
- April 13, 2012State Violation/Reminder Notice1 linked violation
- April 13, 2012State Public Notification requested1 linked violation
- February 16, 2011State Compliance achieved1 linked violation
- February 10, 2011State Administrative/Compliance Order without penalty issued1 linked violation
- February 10, 2011State Administrative/Compliance Order without penalty issued2 linked violations
- November 17, 2010State Other2 linked violations
- September 13, 2010State Violation/Reminder Notice1 linked violation
- September 13, 2010State Public Notification received1 linked violation
- September 13, 2010State Public Notification requested1 linked violation
- September 13, 2010State Violation/Reminder Notice1 linked violation
- May 15, 2009State Compliance achieved4 linked violations
- May 15, 2009State Compliance achieved23 linked violations
- October 22, 2008State Compliance achieved3 linked violations
- September 9, 2008State Other1 linked violation
- August 28, 2008State Compliance achieved1 linked violation
- August 7, 2008State Public Notification received1 linked violation
- July 15, 2008State Public Notification requested1 linked violation
- July 15, 2008State Violation/Reminder Notice1 linked violation
- November 5, 2007State Compliance achieved6 linked violations
- September 4, 2007State Compliance achieved2 linked violations
- August 14, 2007State Compliance achieved1 linked violation
- May 8, 2007Federal Final Administrative Order issued9 linked violations
- September 18, 2006State Compliance achieved1 linked violation
- February 25, 2006State Violation/Reminder Notice2 linked violations
- February 25, 2006State Public Notification requested2 linked violations
- February 10, 2006State Violation/Reminder Notice1 linked violation
- February 10, 2006State Public Notification requested1 linked violation
- July 1, 2005State Compliance achieved1 linked violation
- July 1, 2005State Violation/Reminder Notice1 linked violation
- July 1, 2005State Compliance achieved1 linked violation
- July 1, 2005State Compliance achieved2 linked violations
- February 24, 2005State Violation/Reminder Notice2 linked violations
- February 24, 2005State Public Notification requested2 linked violations
- February 7, 2005State Administrative/Compliance Order with penalty issued73 linked violations
- January 27, 2005State Compliance achieved33 linked violations
- January 27, 2005State Other3 linked violations
- January 27, 2005State Compliance achieved1 linked violation
- January 27, 2005State Compliance achieved11 linked violations
- January 27, 2005State Compliance achieved22 linked violations
- January 4, 2005State Public Notification requested1 linked violation
- January 4, 2005State Violation/Reminder Notice1 linked violation
- September 16, 2004State Other73 linked violations
- August 30, 2004State Other3 linked violations
- March 19, 2004State Public Notification requested1 linked violation
- March 19, 2004State Violation/Reminder Notice1 linked violation
- March 12, 2004State Public Notification requested1 linked violation
- March 12, 2004State Violation/Reminder Notice1 linked violation
- February 18, 2004State Compliance achieved1 linked violation
- October 12, 2003State Violation/Reminder Notice1 linked violation
- February 18, 2003State Public Notification requested1 linked violation
- December 23, 2002State Violation/Reminder Notice1 linked violation
- July 25, 2002State Public Notification requested2 linked violations
- July 12, 2002State Violation/Reminder Notice11 linked violations
- July 5, 2002State Public Notification requested34 linked violations
- July 5, 2002State Violation/Reminder Notice34 linked violations
- April 19, 2002State Public Notification requested1 linked violation
- April 19, 2002State Violation/Reminder Notice1 linked violation
- May 4, 2001State Compliance achieved1 linked violation
- March 1, 1996State Violation/Reminder Notice1 linked violation
Contact
LORD, CURTIS A
406-651-2803
BILLINGS, MT 59106