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Water system · PWSID AZ0407500

SURPRISE CITY OF - MOUNTAIN VISTA

SURPRISE, AZ · ~40,007 people served

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

PWSID

AZ0407500

State

Arizona

City

SURPRISE

Population served

40,007

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 Mar 2025). Levels in parts per trillion (ppt).

Lithium

92,300 ppt

limit —

No federal limit

Violations & enforcement

343

Violations on record

0

Unaddressed

0

Health-based

39

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2018. Official EPA record →

Monitoring & reporting · EPA contaminant 2979 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2983 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2983 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2983 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2991 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2991 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2991 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2981 began Jul 2017 Resolved
Monitoring & reporting · EPA contaminant 2979 began Jul 2017 Resolved

Recent enforcement actions

  • State action · SOX Feb 2018
  • State action · SOX Dec 2017
  • State action · SOX Oct 2017
  • State action · SIA Feb 2015
  • State action · SIA Feb 2015
  • State action · SOX Feb 2015
  • State action · SOX Aug 2014
  • State action · SOX Feb 2013

This profile is built from EPA public records for system AZ0407500 — 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.