ORO VALLEY WATER COUNTRYSIDE

ORO VALLEY, AZ · ~4,534 people served

Check your exact address → ORO VALLEY overview

100

Excellent

PurityRadar safety score

PWSID

AZ0410175

State

Arizona

City

ORO VALLEY

Population served

4,534

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

Latest detections from EPA’s UCMR5 monitoring (through Aug 2024). Levels in parts per trillion (ppt).

Lithium

16,000 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jan 2019. Official EPA record →

Monitoring & reporting · EPA contaminant 2039 began Jan 2017 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2016 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2016 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jan 2016 Resolved

Monitoring & reporting · EPA contaminant 2039 began Jan 2015 Resolved

Monitoring & reporting · EPA contaminant 2039 began Apr 2013 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2008 Resolved

Monitoring & reporting · Nitrate began Jan 2008 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2007 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2007 Resolved

Other · EPA contaminant 7000 began Jul 2006 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2005 Resolved

Recent enforcement actions

State action · SIA Jan 2019
State action · SOX Jan 2019
State action · SOX Mar 2018
State action · SO6 Mar 2018
State action · SIA Jan 2018
State action · SOX Jul 2017
State action · SOX Jun 2016
State action · SOX Jul 2013

This profile is built from EPA public records for system AZ0410175 — 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.