SPANISH TRAIL WATER COMPANY

TUCSON, AZ · ~3,822 people served

Check your exact address → TUCSON overview

100

Excellent

PurityRadar safety score

PWSID

AZ0410127

State

Arizona

City

TUCSON

Population served

3,822

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

203

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Dec 2024. Official EPA record →

Monitoring & reporting · EPA contaminant 0999 began Jul 2024 Resolved

Monitoring & reporting · Lead & Copper Rule began Aug 2023 Resolved

Other · EPA contaminant 7500 began Oct 2022 Resolved

Other · EPA contaminant 7500 began Apr 2022 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Aug 2021 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Aug 2021 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2021 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2021 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2021 Resolved

Reporting · Lead & Copper Rule began Mar 2020 Resolved

Other · EPA contaminant 7000 began Jul 2018 Resolved

Monitoring & reporting · Total coliform began Jan 2015 Resolved

Recent enforcement actions

State action · SOX Dec 2024
State action · SIA Nov 2024
State action · SOX Nov 2023
State action · SIA Nov 2023
State action · SOX Aug 2023
State action · SOX Jan 2023
State action · SIE Nov 2022
State action · SIA Nov 2022

This profile is built from EPA public records for system AZ0410127 — 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.