MT0000231 · Montana
GRASS RANGE TOWN OF
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 5
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 4
Counties listed by EPA · Fergus 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 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 262 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 1376228 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2023 · period end June 19, 2024 · first reported December 20, 2023 · EPA return-to-compliance field June 19, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5488261 November 9, 2023 Informal State Violation/Reminder Notice 5488262 November 9, 2023 Informal State Public Notification requested 5488263 June 19, 2024 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 1376227 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2023 · period end July 18, 2023 · first reported September 22, 2023 · EPA return-to-compliance field July 18, 2023
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5488259 July 11, 2023 Informal State Violation/Reminder Notice 5488260 July 18, 2023 Resolving State Compliance achieved Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 1376233 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported November 17, 2025 · EPA return-to-compliance field December 31, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5488276 October 22, 2025 Informal State Violation/Reminder Notice 5488277 October 22, 2025 Informal State Public Notification requested 5488279 November 5, 2025 Informal State Public Notification received Monitoring or reporting · Archived
Monitoring and Reporting (DBP)Violation 1376232 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2023 · period end December 31, 2025 · first reported November 17, 2025 · EPA return-to-compliance field December 31, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5488276 October 22, 2025 Informal State Violation/Reminder Notice 5488277 October 22, 2025 Informal State Public Notification requested 5488279 November 5, 2025 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, RegularViolation 1376229 · Nitrate-Nitrite · Nitrate RuleNoncompliance period start January 1, 2023 · period end December 31, 2023 · first reported February 15, 2024 · EPA return-to-compliance field December 31, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 5488264 January 24, 2024 Informal State Violation/Reminder Notice 5488265 January 24, 2024 Informal State Public Notification requested 5488266 February 2, 2024 Resolving State Compliance achieved 5488267 April 3, 2024 Informal State Public Notification received
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