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Water system · PWSID AZ0411004

ARIZONA WATER CO - APACHE JUNCTION

PHOENIX, AZ · ~62,055 people served

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

PWSID

AZ0411004

State

Arizona

City

PHOENIX

Population served

62,055

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

Lithium

778,000 ppt

limit —

No federal limit

Violations & enforcement

83

Violations on record

0

Unaddressed

1

Health-based

17

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2016. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Oct 2015 Resolved
Monitoring & reporting · EPA contaminant 2976 began Jan 2011 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2008 Resolved
Monitoring & reporting · Arsenic began Jul 2008 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2008 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2007 Resolved
Monitoring & reporting · EPA contaminant 2968 began Jan 2007 Resolved
Monitoring & reporting · EPA contaminant 2964 began Jan 2007 Resolved
Monitoring & reporting · EPA contaminant 2969 began Jan 2007 Resolved
Monitoring & reporting · Nitrate began Jan 2007 Resolved
Monitoring & reporting · EPA contaminant 2955 began Jan 2007 Resolved
Monitoring & reporting · Nitrate began Jan 2007 Resolved

Recent enforcement actions

  • State action · SOX Jan 2016
  • State action · SOX May 2012
  • State action · SOX Apr 2009
  • State action · SOX Feb 2009
  • State action · SOX Feb 2009
  • State action · SO0 Feb 2009
  • State action · SOX Dec 2008
  • State action · SOX Apr 2008

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

Fluoride

1 station · latest Nov 2022

2.8 · max 2.8 mg/L · 2

Arsenic

1 station · latest Nov 2022

1.7 · max 1.7 ug/L · 1

Copper

1 station · latest Nov 2022

14 · max 14 ug/L · 1

Lead

1 station · latest Nov 2022

1.4 · max 1.4 ug/L · 1

Nitrate

1 station · latest Nov 2022

5.1 · max 5.1 mg/L · 1

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 AZ0411004 — 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.