MT0004920 · Montana
SHEPHERD WATER STATION
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 9
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 8
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 9 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 29 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 143 · E. COLI · Ground Water RuleNoncompliance period start December 18, 2025 · period end January 8, 2026 · first reported February 25, 2026 · EPA return-to-compliance field January 8, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 127 January 8, 2026 Resolving State Compliance achieved 124 January 13, 2026 Informal State Violation/Reminder Notice 125 January 13, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 139 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2024 · period end August 29, 2025 · first reported December 19, 2024 · EPA return-to-compliance field August 29, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 105 November 7, 2024 Informal State Violation/Reminder Notice 106 November 7, 2024 Informal State Public Notification requested 107 August 29, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Source Water (GWR)Violation 137 · E. COLI · Ground Water RuleNoncompliance period start July 18, 2023 · period end July 20, 2023 · first reported September 22, 2023 · EPA return-to-compliance field July 20, 2023
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 100 July 20, 2023 Resolving State Compliance achieved 97 August 16, 2023 Informal State Violation/Reminder Notice 98 August 16, 2023 Informal State Public Notification requested 99 September 11, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 135 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2022 · period end October 31, 2022 · first reported September 22, 2023 · EPA return-to-compliance field October 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 92 November 9, 2022 Resolving State Compliance achieved 89 November 21, 2022 Informal State Violation/Reminder Notice 90 November 21, 2022 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 134 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start September 1, 2022 · period end September 30, 2022 · first reported September 22, 2023 · EPA return-to-compliance field September 30, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 85 November 3, 2022 Informal State Violation/Reminder Notice 86 November 3, 2022 Informal State Public Notification requested 88 November 9, 2022 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 133 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start February 1, 2022 · period end February 28, 2022 · first reported September 22, 2023 · EPA return-to-compliance field February 28, 2022
4 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 84 March 3, 2022 Resolving State Compliance achieved 81 March 14, 2022 Informal State Violation/Reminder Notice 82 March 14, 2022 Informal State Public Notification requested 83 March 16, 2022 Informal State Public Notification received Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 132 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start December 30, 2021 · period end January 13, 2022 · first reported September 22, 2023 · EPA return-to-compliance field January 13, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 79 January 4, 2022 Informal State Violation/Reminder Notice 80 January 13, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Complete Failure to ReportViolation 131 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start July 1, 2021 · period end September 3, 2021 · first reported September 22, 2023 · EPA return-to-compliance field September 3, 2021
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 77 July 19, 2021 Informal State Violation/Reminder Notice 78 September 3, 2021 Resolving State Compliance achieved Monitoring or reporting · Resolved
Follow-up Or Routine LCR Tap M/RViolation 130 · Lead and Copper Rule · Lead and Copper RuleNoncompliance period start October 1, 2020 · period end July 9, 2021 · first reported September 22, 2023 · EPA return-to-compliance field July 9, 2021
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 74 October 20, 2020 Informal State Violation/Reminder Notice 75 October 20, 2020 Informal State Public Notification requested 76 July 9, 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