America.co

CA3310037 · California

CORONA, CITY OF

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

Violation records shown
68
EPA health-based flag
0
Health-based records unresolved in this snapshot
0
Monitoring and reporting records
68

Counties listed by EPA · Riverside County, California

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 68 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 3,286 days. The interval uses the reporting periods and dates on file.

  1. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 9820009 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported November 17, 2022 · EPA return-to-compliance field June 30, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520010September 15, 2022ResolvingState Compliance achieved
    9520009October 17, 2022FormalState Administrative/Compliance Order without penalty issued

  2. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 9820008 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported November 17, 2022 · EPA return-to-compliance field June 30, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520010September 15, 2022ResolvingState Compliance achieved
    9520009October 17, 2022FormalState Administrative/Compliance Order without penalty issued

  3. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820088 · Radium-228 · Radionuclides and Revised Rad Rule

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  4. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820087 · Radium-226 · Radionuclides and Revised Rad Rule

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  5. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820086 · Combined Uranium · Radionuclides and Revised Rad Rule

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  6. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820081 · Chlordane · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  7. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820080 · ETHYLENE DIBROMIDE · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  8. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820079 · 1,2-DIBROMO-3-CHLOROPROPANE · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  9. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820078 · Total Polychlorinated Biphenyls (PCB) · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  10. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820077 · Pentachlorophenol · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  11. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820076 · Benzo(a)pyrene · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  12. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820075 · HEXACHLOROBENZENE · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  13. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820074 · 2,4,5-TP · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  14. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820073 · 2,4-D · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  15. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820072 · Heptachlor epoxide · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  16. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820071 · Heptachlor · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  17. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820070 · 2,3,7,8-TCDD · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  18. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820069 · LASSO · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  19. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820068 · Atrazine · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  20. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820067 · Carbofuran · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  21. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820066 · Hexachlorocyclopentadiene · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  22. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820065 · Dinoseb · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  23. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820064 · Picloram · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  24. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820063 · Di(2-ethylhexyl) phthalate · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  25. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820062 · Simazine · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  26. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820061 · OXAMYL · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  27. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820060 · Di(2-ethylhexyl) adipate · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  28. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820059 · Glyphosate · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  29. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820058 · Endothall · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  30. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820057 · Diquat · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  31. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820056 · Dalapon · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  32. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820055 · Toxaphene · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  33. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820054 · Methoxychlor · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  34. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820053 · BHC-GAMMA · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  35. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820052 · Endrin · Synthetic Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  36. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820051 · Styrene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  37. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820050 · Ethylbenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  38. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820049 · Toluene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  39. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820048 · Benzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  40. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820047 · CHLOROBENZENE · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  41. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820045 · Tetrachloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  42. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820044 · 1,1,2-Trichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  43. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820043 · Trichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  44. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820042 · 1,2-Dichloropropane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  45. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820041 · Carbon tetrachloride · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  46. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820040 · 1,1,1-Trichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  47. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820039 · 1,2-Dichloroethane · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  48. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820038 · trans-1,2-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  49. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820036 · 1,1-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  50. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820035 · Vinyl chloride · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  51. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820034 · p-Dichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  52. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820033 · o-Dichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  53. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820032 · DICHLOROMETHANE · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  54. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820031 · Xylenes, Total · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  55. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820028 · cis-1,2-Dichloroethylene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  56. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820027 · 1,2,4-Trichlorobenzene · Volatile Organic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  57. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820023 · Selenium · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  58. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820022 · Thallium, Total · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  59. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820021 · Beryllium, Total · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  60. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820020 · Antimony, Total · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  61. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820019 · Nitrite · Nitrate Rule

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  62. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820018 · Nickel · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  63. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820017 · Mercury · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  64. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820016 · Fluoride · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  65. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820015 · Chromium · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  66. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820014 · Cadmium · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  67. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820013 · Barium · Inorganic Chemicals

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState Compliance achieved

  68. Monitoring or reporting · Resolved

    Monitoring, RegularViolation 9820012 · Arsenic · Arsenic Rule

    Noncompliance period start January 1, 2017 · period end December 31, 2025 · first reported March 20, 2026 · EPA return-to-compliance field December 31, 2025

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    9520011March 2, 2026InformalState Formal Notice of Violation issued
    9520012March 11, 2026ResolvingState 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.

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