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MT0003183 · Montana

BARNETT WATER USERS SYSTEM

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown
58
EPA health-based flag
0
Health-based records unresolved in this snapshot
0
Monitoring and reporting records
57

Counties listed by EPA · Lewis and Clark County, Montana

Open the EPA system record

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 58 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 1,095 days. The interval uses the reporting periods and dates on file.

  1. Monitoring or reporting · Resolved

    Lead Consumer NoticeViolation 8052 · Lead and Copper Rule · Lead and Copper Rule

    Noncompliance period start December 30, 2024 · period end March 10, 2025 · first reported February 18, 2025 · EPA return-to-compliance field March 10, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4342February 4, 2025InformalState Violation/Reminder Notice
    4343March 10, 2025ResolvingState Compliance achieved

  2. Other or unclassified · Resolved

    Consumer Confidence Report Complete Failure to ReportViolation 8051 · Consumer Confidence Rule · Consumer Confidence Rule

    Noncompliance period start July 1, 2023 · period end July 11, 2023 · first reported September 22, 2023 · EPA return-to-compliance field July 11, 2023

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4340July 11, 2023InformalState Violation/Reminder Notice
    4341July 11, 2023ResolvingState Compliance achieved

  3. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8107 · Styrene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  4. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8106 · Ethylbenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  5. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8105 · Toluene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  6. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8104 · Benzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  7. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8103 · CHLOROBENZENE · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  8. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8102 · Tetrachloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  9. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8101 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  10. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8100 · Trichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  11. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8099 · 1,2-Dichloropropane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  12. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8098 · Carbon tetrachloride · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  13. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8097 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  14. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8096 · 1,2-Dichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  15. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8095 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  16. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8094 · 1,1-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  17. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8093 · Vinyl chloride · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  18. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8092 · p-Dichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  19. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8091 · o-Dichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  20. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8090 · DICHLOROMETHANE · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  21. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8089 · Xylenes, Total · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  22. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8088 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  23. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8087 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4353January 24, 2026InformalState Violation/Reminder Notice
    4354January 24, 2026InformalState Public Notification requested
    4355February 23, 2026ResolvingState Compliance achieved

  24. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8086 · Arsenic · Arsenic Rule

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4350January 23, 2026InformalState Violation/Reminder Notice
    4351January 23, 2026InformalState Public Notification requested
    4352February 23, 2026ResolvingState Compliance achieved

  25. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8085 · Chlordane · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  26. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8084 · Pentachlorophenol · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  27. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8083 · Benzo(a)pyrene · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  28. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8082 · HEXACHLOROBENZENE · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  29. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8081 · 2,4,5-TP · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  30. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8080 · 2,4-D · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  31. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8079 · Heptachlor epoxide · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  32. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8078 · Heptachlor · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  33. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8077 · LASSO · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  34. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8076 · Atrazine · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  35. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8075 · Carbofuran · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  36. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8074 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  37. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8073 · Dinoseb · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  38. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8072 · Picloram · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  39. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8071 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  40. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8070 · Simazine · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  41. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8069 · OXAMYL · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  42. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8068 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  43. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8067 · Dalapon · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  44. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8066 · Toxaphene · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  45. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8065 · Methoxychlor · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  46. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8064 · BHC-GAMMA · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  47. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8063 · Endrin · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4347January 23, 2026InformalState Violation/Reminder Notice
    4348January 23, 2026InformalState Public Notification requested
    4349February 23, 2026ResolvingState Compliance achieved

  48. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8062 · Selenium · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  49. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8061 · Thallium, Total · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  50. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8060 · Beryllium, Total · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  51. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8059 · Antimony, Total · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  52. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8058 · Nickel · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  53. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8057 · Mercury · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  54. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8056 · Fluoride · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  55. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8055 · Chromium · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  56. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8054 · Cadmium · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  57. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 8053 · Barium · Inorganic Chemicals

    Noncompliance period start January 1, 2023 · period end December 31, 2025 · first reported February 25, 2026 · EPA return-to-compliance field December 31, 2025

    3 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4344January 22, 2026InformalState Violation/Reminder Notice
    4345January 22, 2026InformalState Public Notification requested
    4346February 23, 2026ResolvingState Compliance achieved

  58. Monitoring or reporting · Resolved

    Monitoring, Source Water (GWR)Violation 8050 · E. COLI · Ground Water Rule

    Noncompliance period start October 27, 2022 · period end November 21, 2022 · first reported September 22, 2023 · EPA return-to-compliance field November 21, 2022

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    4339November 21, 2022ResolvingState Compliance achieved
    4336November 22, 2022InformalState Violation/Reminder Notice
    4337November 22, 2022InformalState Public Notification requested
    4338December 1, 2022InformalState 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.

EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility