MT0003539 · Montana
PRAIRIE WATER COMPANY
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 13
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 6
Counties listed by EPA · Cascade 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 9 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 183 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5447138 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start July 1, 2026 · period end July 31, 2026 · first reported September 24, 2026 · EPA return-to-compliance field July 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682198 August 20, 2026 Informal State Violation/Reminder Notice 4682199 August 20, 2026 Informal State Public Notification requested 4682201 August 31, 2026 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Complete Failure to ReportViolation 5447136 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2026 · first reported September 24, 2026
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682192 July 2, 2026 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5447137 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start June 1, 2026 · period end June 30, 2026 · first reported August 24, 2026 · EPA return-to-compliance field June 30, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682194 July 16, 2026 Informal State Violation/Reminder Notice 4682195 July 16, 2026 Informal State Public Notification requested 4682197 August 31, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5447135 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start May 1, 2026 · period end May 31, 2026 · first reported August 24, 2026 · EPA return-to-compliance field May 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682188 June 22, 2026 Informal State Violation/Reminder Notice 4682189 June 22, 2026 Informal State Public Notification requested 4682191 August 31, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 5447129 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2024 · period end July 1, 2025 · first reported February 18, 2025 · EPA return-to-compliance field July 1, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682166 February 4, 2025 Informal State Violation/Reminder Notice 4682167 July 1, 2025 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 5447128 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2024 · first reported December 19, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682164 October 1, 2024 Informal State Violation/Reminder Notice Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 5447127 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2024 · period end July 1, 2025 · first reported September 19, 2024 · EPA return-to-compliance field July 1, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682162 July 23, 2024 Informal State Violation/Reminder Notice 4682163 July 1, 2025 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Inadequate ReportingViolation 5447124 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2023 · first reported December 20, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682152 October 13, 2023 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 5447125 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2023 · period end September 30, 2023 · first reported November 15, 2023 · EPA return-to-compliance field September 30, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682154 October 24, 2023 Informal State Violation/Reminder Notice 4682155 October 24, 2023 Informal State Public Notification requested 4682157 October 30, 2023 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Consumer Confidence Report Complete Failure to ReportViolation 5447123 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2023 · first reported September 22, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682150 July 11, 2023 Informal State Violation/Reminder Notice Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 5447121 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2021 · period end July 1, 2025 · first reported September 22, 2023 · EPA return-to-compliance field July 1, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682144 January 4, 2022 Informal State Violation/Reminder Notice 4682145 July 1, 2025 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 5447110 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 1, 2011 · period end February 18, 2021 · first reported December 23, 2011 · EPA return-to-compliance field February 18, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682115 October 28, 2011 Informal State Violation/Reminder Notice 4682116 October 28, 2011 Informal State Public Notification requested 4682141 February 18, 2021 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 5447109 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2011 · period end February 18, 2021 · first reported September 30, 2011 · EPA return-to-compliance field February 18, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 4682112 August 1, 2011 Informal State Violation/Reminder Notice 4682113 August 1, 2011 Informal State Public Notification requested 4682141 February 18, 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