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Water system · PWSID NN0403055

Teec Nos Pos NTUA

Ft Defiance, AZ · ~752 people served

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

PWSID

NN0403055

State

Arizona

City

Ft Defiance

Population served

752

Primary source

SWP

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

42

Violations on record

0

Unaddressed

3

Health-based

63

Enforcement actions

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

Other · Lead & Copper Rule began Apr 2016 Resolved
Monitoring & reporting · EPA contaminant 0600 began Oct 2013 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2013 Resolved
Monitoring & reporting · Total coliform began Dec 2012 Resolved
Monitoring & reporting · Total coliform began Nov 2012 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2012 Resolved
Monitoring & reporting · Fluoride began Jan 2011 Resolved
Max contaminant level (MCL) · Combined radium-226/228 health-based began Oct 2010 Resolved
Monitoring & reporting · Nitrite began Jan 2010 Resolved
Monitoring & reporting · Chromium (total) began Jan 2008 Resolved
Monitoring & reporting · Cadmium began Jan 2008 Resolved
Monitoring & reporting · Selenium began Jan 2008 Resolved

Recent enforcement actions

  • State action · SFJ Apr 2025
  • State action · SFJ Apr 2025
  • State action · SOX Mar 2025
  • State action · SFJ Aug 2024
  • State action · SOX Nov 2021
  • State action · SFJ Mar 2021
  • State action · SFJ Mar 2021
  • State action · SFG Mar 2021

This profile is built from EPA public records for system NN0403055 — 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.