MT0000250 · Montana
HINSDALE WATER DEPARTMENT
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 5
- EPA health-based flag
- 1
- Health-based records unresolved in this snapshot
- 1
- Monitoring and reporting records
- 3
Counties listed by EPA · Valley 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 4 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 28.5 days. The interval uses the reporting periods and dates on file.
EPA health-based flag · Unaddressed by formal action
Treatment Technique, Level 1 Assessment (RTCR)Violation 1468252 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start November 11, 2025 · first reported January 5, 2026
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 299019 December 11, 2025 Informal State Violation/Reminder Notice 299020 December 11, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 1468254 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start January 1, 2026 · period end January 31, 2026 · first reported March 26, 2026 · EPA return-to-compliance field January 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 299027 February 18, 2026 Informal State Violation/Reminder Notice 299028 February 18, 2026 Informal State Public Notification requested 299030 February 18, 2026 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 1468250 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2025 · period end July 17, 2025 · first reported September 23, 2025 · EPA return-to-compliance field July 17, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 299013 July 17, 2025 Informal State Violation/Reminder Notice 299014 July 17, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 1468247 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start February 1, 2025 · period end February 28, 2025 · first reported March 24, 2025 · EPA return-to-compliance field February 28, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 299001 March 17, 2025 Informal State Violation/Reminder Notice 299002 March 17, 2025 Informal State Public Notification requested 299004 March 17, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 1468245 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start July 1, 2021 · period end July 31, 2021 · first reported September 22, 2023 · EPA return-to-compliance field July 31, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 298993 August 23, 2021 Informal State Violation/Reminder Notice 298994 August 23, 2021 Informal State Public Notification requested 298996 August 24, 2021 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