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Water system · PWSID AZ0403105

BEARIZONA

WILLIAMS, AZ · ~1,423 people served

Check your exact address → WILLIAMS overview
85
Excellent
PurityRadar safety score

PWSID

AZ0403105

State

Arizona

City

WILLIAMS

Population served

1,423

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 85 Jun 18, 2026 · score 85

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

22

Violations on record

2

Unaddressed

1

Health-based

41

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2026. Official EPA record →

Other · EPA contaminant 7500 began Oct 2025 Unaddressed
Other · EPA contaminant 7500 began Dec 2024 Unaddressed
Other · EPA contaminant 7500 began Jul 2025 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jun 2025 Resolved
Reporting · EPA contaminant 5200 began Oct 2024 Addressed
Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Addressed
Reporting · Lead & Copper Rule began Jun 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jun 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began May 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved

Recent enforcement actions

  • EPA/federal action · EFL Mar 2026
  • State action · SIA Nov 2025
  • State action · SIF Sep 2025
  • State action · SIA Sep 2025
  • State action · SOX Aug 2025
  • State action · SIA Jul 2025
  • State action · SOX Jul 2025
  • State action · SOX Jun 2025

This profile is built from EPA public records for system AZ0403105 — 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.