CS SUNIZONA WATER COMPANY

DES PERES, MO · ~136 people served

Check your exact address → DES PERES overview

100

Excellent

PurityRadar safety score

PWSID

AZ0402036

State

Missouri

City

DES PERES

Population served

136

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 Nov 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Unaddressed

Other · EPA contaminant 7000 began Jul 2002 Unaddressed

Other · EPA contaminant 7000 began Oct 2025 Resolved

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

Other · EPA contaminant 7000 began Oct 2022 Resolved

Treatment technique · Lead & Copper Rule health-based began Aug 2022 Resolved

Other · EPA contaminant 7000 began Jul 2022 Resolved

Reporting · Lead & Copper Rule began Dec 2021 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2020 Resolved

Other · EPA contaminant 7000 began Jul 2017 Resolved

Other · EPA contaminant 7000 began Oct 2016 Resolved

Other · EPA contaminant 7000 began Jul 2016 Resolved

Recent enforcement actions

State action · SIA Nov 2025
State action · SIA Nov 2025
State action · SOX Jul 2025
State action · SOX Mar 2024
State action · SIA Feb 2024
State action · SIF Mar 2023
State action · SOX Dec 2022
State action · SOX Dec 2022

This profile is built from EPA public records for system AZ0402036 — 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.