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Water system · PWSID AZ0407064

CHAPARRAL WATER COMPANY

TUCSON, AZ · ~963 people served

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

PWSID

AZ0407064

State

Arizona

City

TUCSON

Population served

963

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

234

Violations on record

0

Unaddressed

0

Health-based

66

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Mar 2021. Official EPA record →

Reporting · Lead & Copper Rule began Feb 2021 Resolved
Reporting · Lead & Copper Rule began Jan 2020 Resolved
Reporting · Lead & Copper Rule began Sep 2019 Resolved
Reporting · Lead & Copper Rule began Aug 2018 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2018 Resolved
Monitoring & reporting · EPA contaminant 0999 began Oct 2013 Resolved
Monitoring & reporting · Total coliform began Aug 2013 Resolved
Other · EPA contaminant 7000 began Oct 2012 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2012 Resolved
Other · EPA contaminant 7000 began Oct 2011 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2011 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2011 Resolved

Recent enforcement actions

  • State action · SIA Mar 2021
  • State action · SOX Mar 2021
  • State action · SOX Feb 2020
  • State action · SIA Feb 2020
  • State action · SIA Oct 2019
  • State action · SOX Oct 2019
  • State action · SOX Dec 2018
  • State action · SIA Nov 2018

This profile is built from EPA public records for system AZ0407064 — 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.