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Water system · PWSID NN0435009

Nazlini Community Boarding School BIA

100
Excellent
PurityRadar safety score

PWSID

NN0435009

State

Arizona

City

Ganado

Population served

230

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

98

Violations on record

1

Unaddressed

1

Health-based

123

Enforcement actions

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

Reporting · Lead & Copper Rule began Apr 2025 Unaddressed
Reporting · Lead & Copper Rule began Mar 2025 Resolved
Reporting · Lead & Copper Rule began Oct 2023 Resolved
Reporting · Lead & Copper Rule began Oct 2022 Resolved
Monitoring · Lead & Copper Rule began May 2020 Resolved
Monitoring & reporting · EPA contaminant 3014 began Aug 2019 Resolved
Monitoring · Lead & Copper Rule began Jul 2016 Resolved
Other · Lead & Copper Rule began Apr 2016 Resolved
Monitoring & reporting · EPA contaminant 0600 began Oct 2013 Resolved
Monitoring & reporting · Total coliform began May 2013 Resolved
Monitoring & reporting · Total coliform began Dec 2012 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2012 Resolved

Recent enforcement actions

  • State action · SFJ Dec 2025
  • State action · SOX May 2025
  • State action · SFJ Apr 2025
  • State action · SFJ Apr 2025
  • State action · SOX Nov 2023
  • State action · SOX Nov 2022
  • State action · SOX Jun 2020
  • State action · SOX Jan 2020

This profile is built from EPA public records for system NN0435009 — 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.