PWSID
AZ0406001
State
Arizona
City
DUNCAN
Population served
605
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
264
Violations on record
0
Unaddressed
4
Health-based
240
Enforcement actions
From EPA ECHO (SDWIS), most recent enforcement Dec 2025. Official EPA record →
Recent enforcement actions
- State action · SOX Dec 2025
- State action · SIF Nov 2025
- State action · SIF Nov 2025
- State action · SIA Nov 2025
- State action · SOX Nov 2025
- State action · SIA Nov 2025
- State action · SIE Nov 2025
- State action · SOX Oct 2025
This profile is built from EPA public records for system AZ0406001 — 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.