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Water system · PWSID AZ0413048

TOWN OF PRESCOTT VALLEY

DEWEY, AZ · ~57,048 people served

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

PWSID

AZ0413048

State

Arizona

City

DEWEY

Population served

57,048

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 Sep 2024). Levels in parts per trillion (ppt).

Lithium

22,000 ppt

limit —

No federal limit

Violations & enforcement

377

Violations on record

0

Unaddressed

0

Health-based

72

Enforcement actions

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

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2024 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2024 Resolved
Monitoring · Lead & Copper Rule began Aug 2017 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2016 Resolved
Other · EPA contaminant 7000 began Oct 2016 Resolved
Monitoring · Lead & Copper Rule began Jul 2016 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Monitoring & reporting · Total coliform began Dec 2015 Resolved
Monitoring & reporting · Total coliform began Jul 2015 Resolved
Monitoring & reporting · Total coliform began Oct 2013 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2012 Resolved
Monitoring & reporting · Total coliform began Oct 2012 Resolved

Recent enforcement actions

  • State action · SOX Jul 2025
  • State action · SIF Jul 2025
  • State action · SIA Nov 2024
  • State action · SIE Nov 2024
  • State action · SOX Oct 2017
  • State action · SIA Sep 2017
  • State action · SIA Mar 2017
  • State action · SIA Mar 2017

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Arsenic

4 stations · latest Jan 2026

0.00365 · max 0.005 mg/L · 10

Manganese

2 stations · latest Jan 2026

0.32 · max 0.48 mg/L · 8

Copper

3 stations · latest Oct 2025

0.0016 · max 0.0024 mg/L · 7

Lead

2 stations · latest Oct 2025

0.0004 · max 0.00063 mg/L · 3

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system AZ0413048 — 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.