Rare Metals NTUA

Fort Defiance, AZ · ~72 people served

Check your exact address → Fort Defiance overview

100

Excellent

PurityRadar safety score

PWSID

NN0400208

State

Arizona

City

Fort Defiance

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

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2022. Official EPA record →

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2020 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2020 Resolved

Monitoring & reporting · EPA contaminant 2946 began Jan 2008 Resolved

Monitoring & reporting · EPA contaminant 2931 began Jan 2008 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2005 Resolved

Monitoring & reporting · Nitrate began Jan 2005 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2005 Resolved

Monitoring & reporting · Fluoride began Jan 2004 Resolved

Monitoring & reporting · Total coliform began Dec 2003 Resolved

Monitoring & reporting · Total coliform began Nov 2003 Resolved

Recent enforcement actions

State action · SOX May 2022
State action · SFJ Mar 2022
State action · SFG Mar 2022
State action · SOX Jul 2021
State action · SOX Jul 2021
State action · SFJ Mar 2021
State action · SFG Mar 2021
State action · SFJ Mar 2021

This profile is built from EPA public records for system NN0400208 — 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.