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Water system · PWSID AZ0407179

GW -BWC, INC.- NSWC

MARICOPA, AZ · ~319 people served

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

PWSID

AZ0407179

State

Arizona

City

MARICOPA

Population served

319

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

No PFAS detections are on record for this system from EPA’s UCMR5 monitoring (2023–25). Absence of a detection isn’t a guarantee — not every system was sampled, and this dataset doesn’t cover other contaminants.

Violations & enforcement

81

Violations on record

0

Unaddressed

0

Health-based

35

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2024. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Apr 2024 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2022 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2019 Resolved
Other · EPA contaminant 7000 began Jul 2016 Resolved
Other · EPA contaminant 7000 began Jul 2015 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2012 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2012 Resolved
Other · EPA contaminant 7000 began Oct 2011 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2010 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2010 Resolved
Other · EPA contaminant 7000 began Jul 2009 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2009 Resolved

Recent enforcement actions

  • State action · SOX Oct 2024
  • State action · SIE Aug 2024
  • State action · SIA Aug 2024
  • State action · SOX Feb 2023
  • State action · SIA Feb 2023
  • State action · SIA Nov 2019
  • State action · SIA Nov 2019
  • State action · SOX Oct 2019

This profile is built from EPA public records for system AZ0407179 — 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.