NN0400290 · Arizona
Chilchinbeto 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
- 3
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 3 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 267 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, RegularViolation 040029003104112024 · Nitrite · Nitrate RuleNoncompliance period start January 1, 2024 · period end September 24, 2024 · first reported March 31, 2025 · EPA return-to-compliance field September 24, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400290OX09242441959 September 24, 2024 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 040029003104012024 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2024 · period end September 24, 2024 · first reported March 31, 2025 · EPA return-to-compliance field September 24, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400290OX09242441958 September 24, 2024 Resolving State Compliance achieved Other or unclassified · Unaddressed by formal action
Sample Siting Plan Errors (RTCR)Violation 04002905A800042016 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start April 1, 2016 · first reported October 6, 2024
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400290FJ08282441391 August 28, 2024 Informal State Formal Notice of Violation issued Monitoring or reporting · Resolved
Failure Submit IDSE/Subpart V Plan RptViolation 0400290350600102013 · Stage 2 Disinfectants and Disinfection Byproducts Rule · Stage 2 Disinfectants and Disinfection Byproducts RuleNoncompliance period start October 1, 2013 · period end January 15, 2026 · first reported September 22, 2017 · EPA return-to-compliance field January 15, 2026
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0400290FG08251733321 August 25, 2017 Informal State Public Notification issued 0400290FJ08251733320 August 25, 2017 Informal State Formal Notice of Violation issued 0400290OX01152643198 January 15, 2026 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