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Water system · PWSID AZ0402035

CITY OF WILLCOX

WILLCOX, AZ · ~3,236 people served

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

PWSID

AZ0402035

State

Arizona

City

WILLCOX

Population served

3,236

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

Latest detections from EPA’s UCMR5 monitoring (through Jan 2025). Levels in parts per trillion (ppt).

Lithium

30,000 ppt

limit —

No federal limit

Violations & enforcement

123

Violations on record

1

Unaddressed

4

Health-based

141

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Unaddressed
Monitoring & reporting · EPA contaminant 0999 began Oct 2023 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved
Reporting · Lead & Copper Rule began Sep 2023 Resolved
Reporting · Lead & Copper Rule began Aug 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2023 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2023 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2023 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2023 Resolved
Other · EPA contaminant 7500 began Apr 2022 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2022 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2021 Resolved

Recent enforcement actions

  • State action · SIA Nov 2025
  • State action · SOX Aug 2024
  • State action · SOX Aug 2024
  • State action · SIF Jul 2024
  • State action · SIF Jul 2024
  • State action · SIF Jul 2024
  • State action · SIF Jul 2024
  • State action · SOX May 2024

This profile is built from EPA public records for system AZ0402035 — 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.