SONOITA VALLEY (NORTH) WATER COMPANY

TUCSON, AZ · ~49 people served

Check your exact address → TUCSON overview

100

Excellent

PurityRadar safety score

PWSID

AZ0412308

State

Arizona

City

TUCSON

Population served

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Monitoring & reporting · Haloacetic acids (HAA5) began Sep 2019 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2019 Resolved

Other · EPA contaminant 7000 began Jul 2019 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jul 2018 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Sep 2017 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Sep 2017 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2015 Resolved

Monitoring & reporting · Total coliform began Dec 2012 Resolved

Other · EPA contaminant 7000 began Oct 2012 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Monitoring & reporting · Total coliform began Jun 2012 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2009 Resolved

Recent enforcement actions

State action · SOX Dec 2021
State action · SIA Dec 2020
State action · SIA Dec 2020
State action · SIE Dec 2020
State action · SIE Dec 2020
State action · SIF Nov 2020
State action · SOX Jul 2019
State action · SIA Jul 2019

This profile is built from EPA public records for system AZ0412308 — 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.