NN0400209 · Arizona

White Mesa NTUA

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

Violation records shown: 4
EPA health-based flag: 0
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 4

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

Violations and what followed

Among 4 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 444 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 040020952500012024 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2024 · period end July 16, 2025 · first reported March 31, 2025 · EPA return-to-compliance field July 16, 2025

2 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
0400209FJ04152542013	April 15, 2025	Informal	State Formal Notice of Violation issued
0400209OX07162543207	July 16, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Follow-up Or Routine LCR Tap M/RViolation 040020952500012021 · Lead and Copper Rule · Lead and Copper Rule

Noncompliance period start January 1, 2021 · period end June 8, 2022 · first reported March 11, 2022 · EPA return-to-compliance field June 8, 2022

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
0400209FG03292239384	March 29, 2022	Informal	State Public Notification issued
0400209FJ03292239383	March 29, 2022	Informal	State Formal Notice of Violation issued
0400209OX06082239657	June 8, 2022	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (IDSE)Violation 040020930295012020 · TTHM · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2020 · period end December 31, 2020 · first reported March 25, 2021 · EPA return-to-compliance field December 31, 2020

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
0400209FG03312138499	March 31, 2021	Informal	State Public Notification issued
0400209FJ03312138497	March 31, 2021	Informal	State Formal Notice of Violation issued
0400209OX07132138844	July 13, 2021	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring, Routine (IDSE)Violation 040020930245612020 · Total Haloacetic Acids (HAA5) · Stage 2 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2020 · period end December 31, 2020 · first reported March 25, 2021 · EPA return-to-compliance field December 31, 2020

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
0400209FG03312138500	March 31, 2021	Informal	State Public Notification issued
0400209FJ03312138498	March 31, 2021	Informal	State Formal Notice of Violation issued
0400209OX07132138845	July 13, 2021	Resolving	State 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.

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