Farmington Rural-Shiprock-Beclabito NTUA

Ft Defiance, AZ · ~15,233 people served

Check your exact address → Ft Defiance overview

100

Excellent

PurityRadar safety score

PWSID

NN3500245

State

Arizona

City

Ft Defiance

Population served

15,233

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

Latest detections from EPA’s UCMR5 monitoring (through Nov 2024). Levels in parts per trillion (ppt).

Lithium

43,200 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

146

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Aug 2024. Official EPA record →

Other · EPA contaminant 7500 began Feb 2024 Unaddressed

Monitoring & reporting · EPA contaminant 0600 began Oct 2013 Unaddressed

Monitoring · Lead & Copper Rule began Feb 2024 Resolved

Treatment technique · Lead & Copper Rule health-based began Sep 2018 Resolved

Treatment technique · Lead & Copper Rule health-based began Aug 2018 Resolved

Other · EPA contaminant 7500 began Aug 2018 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Apr 2018 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Apr 2018 Resolved

Monitoring · Lead & Copper Rule began Apr 2017 Resolved

Monitoring · Lead & Copper Rule began Mar 2017 Resolved

Monitoring · Lead & Copper Rule began Feb 2017 Resolved

Monitoring · Lead & Copper Rule began Jan 2017 Resolved

Recent enforcement actions

State action · SFJ Aug 2024
State action · SOX Mar 2024
State action · SOX Feb 2020
State action · SFJ Mar 2019
State action · SOX Feb 2019
State action · SFJ Jan 2019
State action · SFJ Jan 2019
State action · SOX Sep 2018

This profile is built from EPA public records for system NN3500245 — 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.