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Ft Defiance, AZ · ~185 people served

Check your exact address → Ft Defiance overview

100

Excellent

PurityRadar safety score

PWSID

NN0400286

State

Arizona

City

Ft Defiance

Population served

185

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

451

Violations on record

Unaddressed

Health-based

886

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2021. Official EPA record →

Monitoring & reporting · EPA contaminant 0600 began Oct 2013 Unaddressed

Monitoring & reporting · Nitrite began Jan 2016 Resolved

Monitoring & reporting · Nitrate began Jan 2016 Resolved

Monitoring & reporting · Nitrite began Jan 2015 Resolved

Monitoring & reporting · Nitrate began Jan 2015 Resolved

Monitoring & reporting · EPA contaminant 2032 began Oct 2014 Resolved

Monitoring & reporting · EPA contaminant 2063 began Oct 2014 Resolved

Monitoring & reporting · EPA contaminant 2034 began Oct 2014 Resolved

Monitoring & reporting · EPA contaminant 2033 began Oct 2014 Resolved

Monitoring & reporting · EPA contaminant 2032 began Jul 2014 Resolved

Monitoring & reporting · EPA contaminant 2005 began Jul 2014 Resolved

Monitoring & reporting · EPA contaminant 2010 began Jul 2014 Resolved

Recent enforcement actions

State action · SOX May 2021
State action · SFG Mar 2021
State action · SFJ Mar 2021
State action · SFG Aug 2017
State action · SFJ Aug 2017
State action · SOX Jul 2017
State action · SOX Jul 2017
State action · SFG Feb 2017

This profile is built from EPA public records for system NN0400286 — 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.