NORTHERN SUNRISE WC MUSTANG CRYSTAL

SIERRA VISTA, AZ · ~315 people served

Check your exact address → SIERRA VISTA overview

100

Excellent

PurityRadar safety score

PWSID

AZ0402054

State

Arizona

City

SIERRA VISTA

Population served

315

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

394

Violations on record

Unaddressed

Health-based

109

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2022. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Jan 2022 Resolved

Other · EPA contaminant 7000 began Jul 2015 Resolved

Monitoring & reporting · Total coliform began Feb 2015 Resolved

Other · EPA contaminant 7000 began Jul 2014 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2013 Resolved

Monitoring & reporting · EPA contaminant 2980 began Oct 2012 Resolved

Monitoring & reporting · EPA contaminant 2979 began Oct 2012 Resolved

Monitoring & reporting · EPA contaminant 2981 began Oct 2012 Resolved

Monitoring & reporting · EPA contaminant 2968 began Oct 2012 Resolved

Monitoring & reporting · EPA contaminant 2964 began Oct 2012 Resolved

Monitoring & reporting · EPA contaminant 2977 began Oct 2012 Resolved

Monitoring & reporting · EPA contaminant 2969 began Oct 2012 Resolved

Recent enforcement actions

State action · SOX May 2022
State action · SIA May 2022
State action · SOX Sep 2015
State action · SOX Apr 2015
State action · SIA Apr 2015
State action · SOX Aug 2014
State action · SOX Jan 2014
State action · SIA Dec 2013

This profile is built from EPA public records for system AZ0402054 — 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.