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Water system · PWSID 090400090

Ak-Chin Village

Maricopa, AZ · ~11,646 people served

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

PWSID

090400090

State

Arizona

City

Maricopa

Population served

11,646

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

Lithium

84,500 ppt

limit —

No federal limit

PFHxA

3 ppt

limit —

No federal limit

Violations & enforcement

42

Violations on record

0

Unaddressed

10

Health-based

57

Enforcement actions

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

Monitoring · Lead & Copper Rule began Aug 2024 Resolved
Other · EPA contaminant 7500 began Aug 2024 Resolved
Monitoring & reporting · Lead & Copper Rule began Sep 2023 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2020 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2020 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jul 2017 Resolved
Monitoring & reporting · Combined radium-226/228 began Apr 2013 Resolved
Monitoring & reporting · Uranium began Apr 2013 Resolved
Monitoring & reporting · Combined radium-226/228 began Jan 2013 Resolved
Monitoring & reporting · Total coliform began Jan 2012 Resolved
Monitoring & reporting · Nitrate began Oct 2011 Resolved
Monitoring & reporting · Nitrate began Jul 2011 Resolved

Recent enforcement actions

  • EPA/federal action · EIA Apr 2025
  • EPA/federal action · EIA Apr 2025
  • EPA/federal action · EOX Dec 2024
  • EPA/federal action · EOX Sep 2024
  • EPA/federal action · EOX Dec 2023
  • EPA/federal action · EOX Dec 2020
  • EPA/federal action · EOX Dec 2020
  • EPA/federal action · EOX Apr 2018

This profile is built from EPA public records for system 090400090 — 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.