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AZ0414024 · Arizona

CITY OF YUMA

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

Violation records shown
76
EPA health-based flag
23
Health-based records unresolved in this snapshot
0
Monitoring and reporting records
32

Counties listed by EPA · Yuma County, Arizona

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 76 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.

  1. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6628 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start June 1, 2025 · period end June 30, 2025 · first reported February 24, 2026 · EPA return-to-compliance field June 30, 2025

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3852June 10, 2025InformalState Violation/Reminder Notice
    3853June 10, 2025InformalState Public Notification requested
    3855June 12, 2025InformalState Public Notification received
    3856October 21, 2025ResolvingState Compliance achieved

  2. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6627 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start December 1, 2024 · period end December 31, 2024 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2024

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3851December 5, 2024InformalState Public Notification received
    3846February 3, 2025InformalState Violation/Reminder Notice
    3847February 3, 2025InformalState Public Notification requested
    3849February 3, 2025ResolvingState Compliance achieved

  3. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6626 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start December 1, 2024 · period end December 31, 2024 · first reported February 24, 2026 · EPA return-to-compliance field December 31, 2024

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3850December 5, 2024InformalState Public Notification received
    3843February 3, 2025InformalState Violation/Reminder Notice
    3844February 3, 2025InformalState Public Notification requested
    3849February 3, 2025ResolvingState Compliance achieved

  4. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6614 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start March 1, 2022 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3797April 26, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  5. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6611 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start March 1, 2022 · period end March 31, 2022 · first reported May 16, 2022 · EPA return-to-compliance field March 31, 2022

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3801March 22, 2022InformalState Public Notification received
    3776April 7, 2022ResolvingState Compliance achieved
    3790April 8, 2022InformalState Violation/Reminder Notice
    3791April 8, 2022InformalState Public Notification requested

  6. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6613 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start February 1, 2022 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3795April 26, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  7. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6610 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start February 1, 2022 · period end February 28, 2022 · first reported May 16, 2022 · EPA return-to-compliance field February 28, 2022

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3777April 7, 2022ResolvingState Compliance achieved
    3787April 8, 2022InformalState Violation/Reminder Notice
    3788April 8, 2022InformalState Public Notification requested
    3810June 2, 2022InformalState Public Notification received

  8. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6609 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start February 1, 2022 · period end February 28, 2022 · first reported May 16, 2022 · EPA return-to-compliance field February 28, 2022

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3777April 7, 2022ResolvingState Compliance achieved
    3784April 8, 2022InformalState Violation/Reminder Notice
    3785April 8, 2022InformalState Public Notification requested
    3809June 2, 2022InformalState Public Notification received

  9. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6608 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start February 1, 2022 · period end February 28, 2022 · first reported May 16, 2022 · EPA return-to-compliance field February 28, 2022

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3800March 22, 2022InformalState Public Notification received
    3776April 7, 2022ResolvingState Compliance achieved
    3781April 8, 2022InformalState Violation/Reminder Notice
    3782April 8, 2022InformalState Public Notification requested

  10. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6612 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start January 1, 2022 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3793April 26, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  11. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6607 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start January 1, 2022 · period end January 31, 2022 · first reported May 16, 2022 · EPA return-to-compliance field January 31, 2022

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3799March 22, 2022InformalState Public Notification received
    3776April 7, 2022ResolvingState Compliance achieved
    3778April 8, 2022InformalState Violation/Reminder Notice
    3779April 8, 2022InformalState Public Notification requested

  12. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6606 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start December 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3755April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  13. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6604 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start December 1, 2021 · period end December 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field December 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3774March 22, 2022InformalState Public Notification received
    3749April 5, 2022InformalState Violation/Reminder Notice
    3750April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  14. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6603 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start November 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3747April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  15. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6601 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start November 1, 2021 · period end November 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field November 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3773March 22, 2022InformalState Public Notification received
    3741April 5, 2022InformalState Violation/Reminder Notice
    3742April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  16. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6600 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start October 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3739April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  17. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6598 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2021 · period end October 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field October 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3772March 22, 2022InformalState Public Notification received
    3733April 5, 2022InformalState Violation/Reminder Notice
    3734April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  18. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6597 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2021 · period end October 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field October 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3730April 5, 2022InformalState Violation/Reminder Notice
    3731April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3812June 2, 2022InformalState Public Notification received

  19. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6596 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2021 · period end October 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field October 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3727April 5, 2022InformalState Violation/Reminder Notice
    3728April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3811June 2, 2022InformalState Public Notification received

  20. EPA health-based flag · Resolved

    Treatment Technique Precursor RemovalViolation 6521 · CARBON, TOTAL · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field December 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3525March 4, 2022InformalState Violation/Reminder Notice
    3526March 4, 2022InformalState Public Notification requested
    3530March 22, 2022InformalState Public Notification received
    3840June 9, 2022ResolvingState Compliance achieved

  21. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6595 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start September 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3725April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  22. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6593 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start September 1, 2021 · period end September 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field September 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3771March 22, 2022InformalState Public Notification received
    3719April 5, 2022InformalState Violation/Reminder Notice
    3720April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  23. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6592 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start September 1, 2021 · period end September 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field September 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3716April 5, 2022InformalState Violation/Reminder Notice
    3717April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3813June 2, 2022InformalState Public Notification received

  24. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6590 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start August 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3711April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  25. EPA health-based flag · Resolved

    Non-Acute MRDLViolation 6589 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start August 1, 2021 · period end August 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field August 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3708April 5, 2022InformalState Violation/Reminder Notice
    3709April 5, 2022InformalState Public Notification requested
    3775April 7, 2022ResolvingState Compliance achieved
    3814June 2, 2022InformalState Public Notification received

  26. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6588 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start August 1, 2021 · period end August 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field August 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3770March 22, 2022InformalState Public Notification received
    3705April 5, 2022InformalState Violation/Reminder Notice
    3706April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  27. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6587 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start August 1, 2021 · period end August 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field August 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3702April 5, 2022InformalState Violation/Reminder Notice
    3703April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3816June 2, 2022InformalState Public Notification received

  28. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6586 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start August 1, 2021 · period end August 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field August 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3699April 5, 2022InformalState Violation/Reminder Notice
    3700April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3815June 2, 2022InformalState Public Notification received

  29. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6585 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start July 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3697April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  30. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6583 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start July 1, 2021 · period end July 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field July 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3769March 22, 2022InformalState Public Notification received
    3691April 5, 2022InformalState Violation/Reminder Notice
    3692April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  31. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6582 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start June 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3689April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  32. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6580 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start June 1, 2021 · period end June 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field June 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3768March 22, 2022InformalState Public Notification received
    3683April 5, 2022InformalState Violation/Reminder Notice
    3684April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  33. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6579 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start June 1, 2021 · period end June 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field June 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3680April 5, 2022InformalState Violation/Reminder Notice
    3681April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3818June 2, 2022InformalState Public Notification received

  34. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6578 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start June 1, 2021 · period end June 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field June 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3677April 5, 2022InformalState Violation/Reminder Notice
    3678April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3817June 2, 2022InformalState Public Notification received

  35. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6577 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start May 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3675April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  36. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6575 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start May 1, 2021 · period end May 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field May 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3767March 22, 2022InformalState Public Notification received
    3669April 5, 2022InformalState Violation/Reminder Notice
    3670April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  37. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6574 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start May 1, 2021 · period end May 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field May 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3666April 5, 2022InformalState Violation/Reminder Notice
    3667April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3820June 2, 2022InformalState Public Notification received

  38. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6573 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start May 1, 2021 · period end May 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field May 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3663April 5, 2022InformalState Violation/Reminder Notice
    3664April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3819June 2, 2022InformalState Public Notification received

  39. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6572 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start April 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3661April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  40. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6570 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start April 1, 2021 · period end April 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field April 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3766March 22, 2022InformalState Public Notification received
    3655April 5, 2022InformalState Violation/Reminder Notice
    3656April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  41. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6569 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start April 1, 2021 · period end April 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field April 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3652April 5, 2022InformalState Violation/Reminder Notice
    3653April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3822June 2, 2022InformalState Public Notification received

  42. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6568 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start April 1, 2021 · period end April 30, 2021 · first reported May 16, 2022 · EPA return-to-compliance field April 30, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3649April 5, 2022InformalState Violation/Reminder Notice
    3650April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3821June 2, 2022InformalState Public Notification received

  43. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6567 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start March 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3647April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  44. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6565 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start March 1, 2021 · period end March 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field March 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3765March 22, 2022InformalState Public Notification received
    3641April 5, 2022InformalState Violation/Reminder Notice
    3642April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  45. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6564 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start March 1, 2021 · period end March 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field March 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3638April 5, 2022InformalState Violation/Reminder Notice
    3639April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3824June 2, 2022InformalState Public Notification received

  46. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6563 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start March 1, 2021 · period end March 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field March 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3635April 5, 2022InformalState Violation/Reminder Notice
    3636April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3823June 2, 2022InformalState Public Notification received

  47. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6562 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start February 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3633April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  48. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6560 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start February 1, 2021 · period end February 28, 2021 · first reported May 16, 2022 · EPA return-to-compliance field February 28, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3764March 22, 2022InformalState Public Notification received
    3627April 5, 2022InformalState Violation/Reminder Notice
    3628April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  49. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6559 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start February 1, 2021 · period end February 28, 2021 · first reported May 16, 2022 · EPA return-to-compliance field February 28, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3624April 5, 2022InformalState Violation/Reminder Notice
    3625April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3826June 2, 2022InformalState Public Notification received

  50. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6558 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start February 1, 2021 · period end February 28, 2021 · first reported May 16, 2022 · EPA return-to-compliance field February 28, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3621April 5, 2022InformalState Violation/Reminder Notice
    3622April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3825June 2, 2022InformalState Public Notification received

  51. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6556 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start January 1, 2021 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3841April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  52. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6554 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start January 1, 2021 · period end January 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field January 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3763March 22, 2022InformalState Public Notification received
    3615April 5, 2022InformalState Violation/Reminder Notice
    3616April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  53. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6553 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start January 1, 2021 · period end January 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field January 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3612April 5, 2022InformalState Violation/Reminder Notice
    3613April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3828June 2, 2022InformalState Public Notification received

  54. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6552 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start January 1, 2021 · period end January 31, 2021 · first reported May 16, 2022 · EPA return-to-compliance field January 31, 2021

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3609April 5, 2022InformalState Violation/Reminder Notice
    3610April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3827June 2, 2022InformalState Public Notification received

  55. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6551 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start December 1, 2020 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3607April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  56. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6549 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start December 1, 2020 · period end December 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field December 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3762March 22, 2022InformalState Public Notification received
    3601April 5, 2022InformalState Violation/Reminder Notice
    3602April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  57. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6548 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start December 1, 2020 · period end December 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field December 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3598April 5, 2022InformalState Violation/Reminder Notice
    3599April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3830June 2, 2022InformalState Public Notification received

  58. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6547 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start December 1, 2020 · period end December 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field December 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3595April 5, 2022InformalState Violation/Reminder Notice
    3596April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3829June 2, 2022InformalState Public Notification received

  59. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6546 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start November 1, 2020 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3593April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  60. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6544 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start November 1, 2020 · period end November 30, 2020 · first reported May 16, 2022 · EPA return-to-compliance field November 30, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3761March 22, 2022InformalState Public Notification received
    3587April 5, 2022InformalState Violation/Reminder Notice
    3588April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  61. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6543 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start November 1, 2020 · period end November 30, 2020 · first reported May 16, 2022 · EPA return-to-compliance field November 30, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3584April 5, 2022InformalState Violation/Reminder Notice
    3585April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3832June 2, 2022InformalState Public Notification received

  62. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6542 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start November 1, 2020 · period end November 30, 2020 · first reported May 16, 2022 · EPA return-to-compliance field November 30, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3581April 5, 2022InformalState Violation/Reminder Notice
    3582April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3831June 2, 2022InformalState Public Notification received

  63. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6541 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start October 1, 2020 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3579April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  64. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6539 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2020 · period end October 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field October 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3760March 22, 2022InformalState Public Notification received
    3573April 5, 2022InformalState Violation/Reminder Notice
    3574April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  65. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6538 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2020 · period end October 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field October 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3570April 5, 2022InformalState Violation/Reminder Notice
    3571April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3834June 2, 2022InformalState Public Notification received

  66. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6537 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start October 1, 2020 · period end October 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field October 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3567April 5, 2022InformalState Violation/Reminder Notice
    3568April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3833June 2, 2022InformalState Public Notification received

  67. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6536 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start September 1, 2020 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3565April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  68. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6534 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start September 1, 2020 · period end September 30, 2020 · first reported May 16, 2022 · EPA return-to-compliance field September 30, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3759March 22, 2022InformalState Public Notification received
    3559April 5, 2022InformalState Violation/Reminder Notice
    3560April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  69. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6533 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start September 1, 2020 · period end September 30, 2020 · first reported May 16, 2022 · EPA return-to-compliance field September 30, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3556April 5, 2022InformalState Violation/Reminder Notice
    3557April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3836June 2, 2022InformalState Public Notification received

  70. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6532 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start September 1, 2020 · period end September 30, 2020 · first reported May 16, 2022 · EPA return-to-compliance field September 30, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3553April 5, 2022InformalState Violation/Reminder Notice
    3554April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3835June 2, 2022InformalState Public Notification received

  71. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6531 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start August 1, 2020 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3551April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  72. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6529 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start August 1, 2020 · period end August 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field August 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3758March 22, 2022InformalState Public Notification received
    3545April 5, 2022InformalState Violation/Reminder Notice
    3546April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState Compliance achieved

  73. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6528 · Chlorite · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start August 1, 2020 · period end August 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field August 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3542April 5, 2022InformalState Violation/Reminder Notice
    3543April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3838June 2, 2022InformalState Public Notification received

  74. Monitoring or reporting · Resolved

    Monitoring and Reporting (DBP)Violation 6527 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start August 1, 2020 · period end August 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field August 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3539April 5, 2022InformalState Violation/Reminder Notice
    3540April 5, 2022InformalState Public Notification requested
    3777April 7, 2022ResolvingState Compliance achieved
    3837June 2, 2022InformalState Public Notification received

  75. Other or unclassified · Resolved

    Public Notification Violation for NPDWR ViolationViolation 6525 · Public Notice · Public Notice Rule and Revised PN Rule

    Noncompliance period start July 1, 2020 · period end June 2, 2022 · first reported May 16, 2022 · EPA return-to-compliance field June 2, 2022

    2 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3534April 5, 2022InformalState Violation/Reminder Notice
    3839June 2, 2022ResolvingState Compliance achieved

  76. EPA health-based flag · Resolved

    Acute Maximum Residual Disinfectant LevelViolation 6524 · Chlorine dioxide · Stage 1 Disinfectants and Disinfection Byproducts Rule

    Noncompliance period start July 1, 2020 · period end July 31, 2020 · first reported May 16, 2022 · EPA return-to-compliance field July 31, 2020

    4 linked actions
    Enforcement and resolution records linked by EPA
    Action IDDateCategoryEPA action type
    3757March 22, 2022InformalState Public Notification received
    3531April 5, 2022InformalState Violation/Reminder Notice
    3532April 5, 2022InformalState Public Notification requested
    3776April 7, 2022ResolvingState 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