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Water system · PWSID 090400226

Greater Santa Rosa Regional

100
Excellent
PurityRadar safety score

PWSID

090400226

State

Arizona

City

Sells

Population served

1,352

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

43

Violations on record

0

Unaddressed

2

Health-based

49

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2017. Official EPA record →

Monitoring & reporting · Arsenic began Jul 2017 Resolved
Monitoring & reporting · Arsenic began Oct 2015 Resolved
Monitoring & reporting · Gross alpha began Jul 2013 Resolved
Monitoring & reporting · Combined radium-226/228 began Jul 2013 Resolved
Monitoring & reporting · Uranium began Jul 2013 Resolved
Max contaminant level (MCL) · Arsenic health-based began Apr 2007 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2004 Resolved
Monitoring & reporting · EPA contaminant 1075 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2015 began Jan 2004 Resolved
Monitoring & reporting · Beryllium began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2010 began Jan 2004 Resolved
Monitoring & reporting · EPA contaminant 2005 began Jan 2004 Resolved

Recent enforcement actions

  • EPA/federal action · EOX Dec 2017
  • EPA/federal action · EOX Jan 2016
  • EPA/federal action · EOX Oct 2013
  • EPA/federal action · EOX Oct 2013
  • EPA/federal action · EOX Oct 2013
  • EPA/federal action · EIC Apr 2011
  • EPA/federal action · EIC Jan 2011
  • EPA/federal action · EOX Jan 2010

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Nitrate

1 station · latest Jul 2021

1.2 · max 1.2 mg/L · 1

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system 090400226 — 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.