CASAS ARROYO ASSOCIATION INC

SONOITA, AZ · ~27 people served

Check your exact address → SONOITA overview

100

Excellent

PurityRadar safety score

PWSID

AZ0412020

State

Arizona

City

SONOITA

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 Jul 2025. Official EPA record →

Other · EPA contaminant 7500 began May 2025 Resolved

Treatment technique · EPA contaminant 0700 health-based began Mar 2025 Resolved

Other · EPA contaminant 7500 began Dec 2024 Resolved

Treatment technique · EPA contaminant 5200 health-based began Oct 2024 Resolved

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved

Reporting · Lead & Copper Rule began Dec 2022 Resolved

Other · EPA contaminant 7000 began Oct 2022 Resolved

Other · EPA contaminant 7000 began Jul 2021 Resolved

Monitoring & reporting · EPA contaminant 3014 began Jun 2020 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2019 Resolved

Reporting · Lead & Copper Rule began Apr 2019 Resolved

Recent enforcement actions

State action · SIF Jul 2025
State action · SOX Jul 2025
State action · SIF Jul 2025
State action · SIF Jul 2025
State action · SIA Jul 2025
State action · SOX Jun 2025
State action · SOX Jun 2025
State action · SIF May 2025

This profile is built from EPA public records for system AZ0412020 — 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.