MT0000154 · Montana
YELLOWSTONE BOYS AND GIRLS RANCH
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 22
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 22
Counties listed by EPA · Yellowstone County, Montana
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 22 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 364 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600597 · Nitrate-Nitrite · Nitrate RuleNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429659 February 2, 2022 Informal State Violation/Reminder Notice 5429660 February 2, 2022 Informal State Public Notification requested 5429661 February 11, 2022 Resolving State Compliance achieved 5429666 May 20, 2022 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600596 · Styrene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600595 · Ethylbenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600594 · Toluene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600593 · Benzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600592 · CHLOROBENZENE · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600591 · Tetrachloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600590 · 1,1,2-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600589 · Trichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600588 · 1,2-Dichloropropane · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600587 · Carbon tetrachloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600586 · 1,1,1-Trichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600585 · 1,2-Dichloroethane · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600584 · trans-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600583 · 1,1-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600582 · Vinyl chloride · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600581 · p-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600580 · o-Dichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600579 · DICHLOROMETHANE · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600578 · Xylenes, Total · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600577 · cis-1,2-Dichloroethylene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 5600576 · 1,2,4-Trichlorobenzene · Volatile Organic ChemicalsNoncompliance period start January 1, 2021 · period end December 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field December 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5429663 January 21, 2022 Informal State Violation/Reminder Notice 5429664 January 21, 2022 Informal State Public Notification requested 5429665 April 11, 2022 Resolving State Compliance achieved
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility