NN0435004 · Arizona
Cottonwood Day School BIA
Federal fiscal 2026Q3 · EPA violation and follow-up records
- Violation records shown
- 6
- EPA health-based flag
- 0
- Health-based records unresolved in this snapshot
- 0
- Monitoring and reporting records
- 6
Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.
Violations and what followed
Among 6 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 74.5 days. The interval uses the reporting periods and dates on file.
Monitoring or reporting · Resolved
Monitoring, Routine (RTCR)Violation 04350043A800032025 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start March 1, 2025 · period end March 31, 2025 · first reported June 30, 2025 · EPA return-to-compliance field March 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0435004OX04022542624 April 2, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring and Reporting (DBP)Violation 043500427099912025 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts RuleNoncompliance period start January 1, 2025 · period end March 31, 2025 · first reported June 23, 2026 · EPA return-to-compliance field March 31, 2025
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0435004OX04022542625 April 2, 2025 Resolving State Compliance achieved Monitoring or reporting · Resolved
Monitoring, RegularViolation 043500403104112024 · Nitrite · Nitrate RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 31, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0435004OX02242542627 February 24, 2025 Resolving State Compliance achieved 0435004FJ04292542429 April 29, 2025 Informal State Formal Notice of Violation issued 0435004FJ04292542431 April 29, 2025 Informal State Formal Notice of Violation issued Monitoring or reporting · Resolved
Monitoring, RegularViolation 043500403104012024 · Nitrate · Nitrate RuleNoncompliance period start January 1, 2024 · period end December 31, 2024 · first reported March 31, 2025 · EPA return-to-compliance field December 31, 2024
3 linked actions
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0435004OX02242542626 February 24, 2025 Resolving State Compliance achieved 0435004FJ04292542428 April 29, 2025 Informal State Formal Notice of Violation issued 0435004FJ04292542430 April 29, 2025 Informal State Formal Notice of Violation issued Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 04350044B8000102023 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2023 · period end November 30, 2023 · first reported March 28, 2024 · EPA return-to-compliance field November 30, 2023
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0435004OX11302340798 November 30, 2023 Resolving State Compliance achieved Monitoring or reporting · Resolved
Report Sample Result/Fail Monitor (RTCR)Violation 04350044B8000102022 · Revised Total Coliform Rule · Revised Total Coliform RuleNoncompliance period start October 1, 2022 · period end November 17, 2022 · first reported March 13, 2023 · EPA return-to-compliance field November 17, 2022
1 linked action
Enforcement and resolution records linked by EPA Action ID Date Category EPA action type 0435004OX11172239960 November 17, 2022 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