AZ0408122 · Arizona
HORIZON SIX DWID
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 9
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 6
Counties listed by EPA · Mohave County, Arizona
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 9 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 30 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 3003 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 14, 2026 · EPA return-to-compliance field March 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2867 April 17, 2026 Resolving State Compliance achieved 2864 May 1, 2026 Informal State Violation/Reminder Notice 2865 May 1, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 3002 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2026 · period end March 31, 2026 · first reported May 14, 2026 · EPA return-to-compliance field March 31, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2867 April 17, 2026 Resolving State Compliance achieved 2864 May 1, 2026 Informal State Violation/Reminder Notice 2865 May 1, 2026 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 3001 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2025 · period end October 31, 2025 · first reported February 24, 2026 · EPA return-to-compliance field October 31, 2025
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2854 January 26, 2026 Informal State Violation/Reminder Notice 2863 January 29, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2998 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2847 October 10, 2025 Resolving State Compliance achieved 2844 October 24, 2025 Informal State Violation/Reminder Notice 2845 October 24, 2025 Informal State Public Notification requested Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 2997 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start July 1, 2025 · period end September 30, 2025 · first reported February 24, 2026 · EPA return-to-compliance field September 30, 2025
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2847 October 10, 2025 Resolving State Compliance achieved 2844 October 24, 2025 Informal State Violation/Reminder Notice 2845 October 24, 2025 Informal State Public Notification requested Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2993 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start December 30, 2023 · period end January 23, 2024 · first reported February 24, 2026 · EPA return-to-compliance field January 23, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2837 January 19, 2024 Informal State Violation/Reminder Notice 2843 January 23, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 2991 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start November 1, 2022 · period end November 30, 2022 · first reported February 15, 2023 · EPA return-to-compliance field November 30, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2828 December 29, 2022 Informal State Violation/Reminder Notice 2829 December 29, 2022 Informal State Public Notification requested 2831 December 29, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 2990 · Consumer Confidence Rule · Consumer Confidence RuleNoncompliance period start October 2, 2022 · period end October 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field October 31, 2022
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2826 October 11, 2022 Informal State Violation/Reminder Notice 2833 October 31, 2022 Resolving State Compliance achieved Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 2989 · Public Notice · Public Notice Rule and Revised PN RuleNoncompliance period start October 2, 2020 · period end October 14, 2020 · first reported February 12, 2021 · EPA return-to-compliance field October 14, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 2825 October 14, 2020 Resolving State Compliance achieved 2823 November 16, 2020 Informal State Violation/Reminder Notice
EPA data and scope
How to read the records
The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.
- We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
- EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
- Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
- We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.
EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility