PWSID
AZ0413148
State
Arizona
City
WILLIAMS
Population served
500
Primary source
Groundwater
Score history
No change since tracking began Jun 18, 2026.
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
52
Violations on record
2
Unaddressed
1
Health-based
48
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Nov 2025. Official EPA record →
Recent enforcement actions
- State action · SIA Nov 2025
- State action · SOX Dec 2018
- State action · SIA Nov 2018
- State action · SOX Dec 2017
- State action · SIA Dec 2017
- State action · SIA Nov 2017
- State action · SIA Nov 2017
- State action · SOX Oct 2017
This profile is built from EPA public records for system AZ0413148 — 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.