MT0000418 · Montana
DUNCAN RANCH COLONY
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 2
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 2
Counties listed by EPA · Wheatland 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 2 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 27 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 5486125 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2021 · period end January 24, 2022 · first reported September 22, 2023 · EPA return-to-compliance field January 24, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5589064 January 4, 2022 Informal State Violation/Reminder Notice 5589065 January 24, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5486124 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start June 1, 2021 · period end June 30, 2021 · first reported September 22, 2023 · EPA return-to-compliance field June 30, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5589063 July 6, 2021 Resolving State Compliance achieved 5589060 July 16, 2021 Informal State Violation/Reminder Notice 5589061 July 16, 2021 Informal State Public Notification requested
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