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Water system · PWSID NN3503031

Narbona Pass NTUA

Ft Defiance, AZ · ~862 people served

Check your exact address → Ft Defiance overview
100
Excellent
PurityRadar safety score

PWSID

NN3503031

State

Arizona

City

Ft Defiance

Population served

862

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

46

Violations on record

0

Unaddressed

0

Health-based

60

Enforcement actions

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

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2020 Resolved
Monitoring & reporting · EPA contaminant 0600 began Oct 2013 Resolved
Monitoring & reporting · Total coliform began Dec 2012 Resolved
Monitoring & reporting · Total coliform began Nov 2012 Resolved
Monitoring & reporting · Nitrite began Jan 2010 Resolved
Monitoring & reporting · Selenium began Jan 2008 Resolved
Monitoring & reporting · Fluoride began Jan 2008 Resolved
Monitoring & reporting · Cadmium began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 1075 began Jan 2008 Resolved
Monitoring & reporting · EPA contaminant 1085 began Jan 2008 Resolved
Monitoring & reporting · Beryllium began Jan 2008 Resolved

Recent enforcement actions

  • State action · SOX Oct 2025
  • State action · SFJ Apr 2025
  • State action · SFJ Apr 2025
  • 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 NN3503031 — 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.