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Water system · PWSID AZ0407025

PHOENIX CITY OF

PHOENIX, AZ · ~1,695,000 people served

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

PWSID

AZ0407025

State

Arizona

City

PHOENIX

Population served

1,695,000

Primary source

Surface water

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 2023). Levels in parts per trillion (ppt).

Lithium

54,600 ppt

limit —

No federal limit

PFBS

14 ppt

limit —

No federal limit

PFBA

5 ppt

limit —

No federal limit

Violations & enforcement

65

Violations on record

0

Unaddressed

2

Health-based

18

Enforcement actions

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

Monitoring · Lead & Copper Rule began May 2025 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jan 2021 Resolved
Monitoring & reporting · Arsenic began Oct 2018 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2014 Resolved
Monitoring & reporting · EPA contaminant 1094 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 2931 began Jan 1999 Resolved
Monitoring & reporting · EPA contaminant 2326 began Jan 1999 Resolved
Monitoring & reporting · EPA contaminant 2274 began Jan 1999 Resolved
Monitoring & reporting · EPA contaminant 2326 began Jan 1999 Resolved
Monitoring & reporting · EPA contaminant 2959 began Jan 1999 Resolved
Monitoring & reporting · EPA contaminant 2110 began Jan 1999 Resolved
Monitoring & reporting · EPA contaminant 2959 began Jan 1999 Resolved

Recent enforcement actions

  • State action · SOX Nov 2025
  • State action · SIA Jun 2025
  • State action · SIE Jun 2025
  • State action · SIA Feb 2024
  • State action · SO0 Feb 2024
  • State action · SIF Feb 2021
  • State action · SIE Feb 2021
  • State action · SIA Feb 2021

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

Nitrate

35 stations · latest Oct 2025

4,490 · max 381,000 ug/L · 196

Uranium

21 stations · latest Apr 2024

22.3 · max 58.1 ug/L · 32

Manganese

16 stations · latest Apr 2024

27.7 · max 540 ug/L · 23

Copper

13 stations · latest Apr 2024

1.25 · max 14.3 ug/L · 22

Arsenic

1 station · latest Apr 2022

0.00795 · max 0.008 mg/L · 2

Fluoride

1 station · latest Apr 2022

0.43 · max 0.44 mg/L · 2

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 AZ0407025 — 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.