AZ0407128 · Arizona
ARIZONA WATER CO - WHITE TANKS
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 5
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 5
Counties listed by EPA · Maricopa 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 5 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 610 · 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
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 51 November 7, 2025 Informal State Violation/Reminder Notice 55 February 24, 2026 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 605 · Arsenic · Arsenic RuleNoncompliance period start January 1, 2024 · period end March 31, 2024 · first reported May 15, 2024 · EPA return-to-compliance field March 31, 2024
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 39 May 9, 2024 Informal State Violation/Reminder Notice 41 May 9, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 587 · 2,4-D · Synthetic Organic ChemicalsNoncompliance period start January 1, 2023 · period end March 31, 2023 · first reported February 24, 2026 · EPA return-to-compliance field March 31, 2023
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 35 May 1, 2023 Informal State Violation/Reminder Notice 36 May 1, 2023 Informal State Public Notification requested 34 July 11, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 584 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2022 · period end December 31, 2022 · first reported May 15, 2023 · EPA return-to-compliance field December 31, 2022
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 23 May 19, 2022 Informal State Public Notification requested 32 May 3, 2023 Resolving State Compliance achieved 33 May 3, 2023 Informal State Public Notification received Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 583 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2020 · period end November 25, 2020 · first reported February 12, 2021 · EPA return-to-compliance field November 25, 2020
2 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 19 November 25, 2020 Resolving State Compliance achieved 20 December 2, 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