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Water system · PWSID AZ0403018

PONDEROSA UTILITY CORP

FLAGSTAFF, AZ · ~1,585 people served

Check your exact address → FLAGSTAFF overview
100
Excellent
PurityRadar safety score

PWSID

AZ0403018

State

Arizona

City

FLAGSTAFF

Population served

1,585

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

77

Violations on record

0

Unaddressed

9

Health-based

86

Enforcement actions

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

Treatment technique · EPA contaminant 0700 health-based began Jul 2024 Resolved
Treatment technique · EPA contaminant 0700 health-based began May 2024 Resolved
Treatment technique · Lead & Copper Rule health-based began Oct 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2023 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2015 Resolved
Monitoring & reporting · Total coliform began Apr 2013 Resolved
Monitoring & reporting · Total coliform began Mar 2013 Resolved
Monitoring & reporting · Total coliform began Aug 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2012 Resolved
Monitoring & reporting · Total coliform began Dec 2011 Resolved
Monitoring & reporting · EPA contaminant 3014 began Nov 2011 Resolved

Recent enforcement actions

  • State action · SIF Jan 2025
  • State action · SIF Jan 2025
  • State action · SIA Dec 2024
  • State action · SIA Dec 2024
  • State action · SIE Dec 2024
  • State action · SIE Dec 2024
  • State action · SIA Dec 2024
  • State action · SIE Dec 2024

This profile is built from EPA public records for system AZ0403018 — 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.