Canyon De Chelly National Monument

Chinle, AZ · ~55 people served

Check your exact address → Chinle overview

100

Excellent

PurityRadar safety score

PWSID

NN0403022

State

Arizona

City

Chinle

Population served

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 100 Jun 18, 2026 · score 100

2 score updates logged since tracking began Jun 18, 2026. Each future EPA re-score adds a point.

PFAS & contaminant readings

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

110

Violations on record

Unaddressed

Health-based

147

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2024 Unaddressed

Reporting · Lead & Copper Rule began Aug 2024 Resolved

Reporting · Lead & Copper Rule began Sep 2022 Resolved

Reporting · Lead & Copper Rule began Aug 2022 Resolved

Reporting · Lead & Copper Rule began Nov 2021 Resolved

Reporting · Lead & Copper Rule began May 2021 Resolved

Other · EPA contaminant 7000 began Jul 2020 Resolved

Reporting · Lead & Copper Rule began May 2020 Resolved

Reporting · Lead & Copper Rule began Apr 2020 Resolved

Reporting · Lead & Copper Rule began Dec 2019 Resolved

Monitoring · Lead & Copper Rule began Apr 2018 Resolved

Monitoring · Lead & Copper Rule began Jul 2016 Resolved

Recent enforcement actions

State action · SFJ Mar 2025
State action · SOX Sep 2024
State action · SOX Oct 2022
State action · SOX Oct 2022
State action · SOX Feb 2022
State action · SOX Jun 2021
State action · SOX Apr 2021
State action · SFJ Mar 2021

This profile is built from EPA public records for system NN0403022 — SDWIS violations and UCMR5 PFAS sampling. The score is system-level and can’t account for your home’s plumbing (older pipes can add lead at the tap). For health decisions, check your exact address, read the utility’s Consumer Confidence Report, and confirm with your provider.