CS HARRISBURG UTILITY COMPANY

DES PERES, MO · ~1,759 people served

Check your exact address → DES PERES overview

Good

PurityRadar safety score

PWSID

AZ0415029

State

Missouri

City

DES PERES

Population served

1,759

Primary source

Groundwater

Score history

No change since tracking began Jun 18, 2026.

Jun 18, 2026 · score 70 Jun 18, 2026 · score 70

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

102

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began Aug 2025 Unaddressed

Other · EPA contaminant 7500 began Nov 2024 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2023 Resolved

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

Monitoring & reporting · EPA contaminant 0999 began Jul 2023 Resolved

Reporting · Lead & Copper Rule began Mar 2022 Resolved

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

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

Monitoring · Lead & Copper Rule began Sep 2016 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2014 Resolved

Other · EPA contaminant 7000 began Oct 2013 Resolved

Recent enforcement actions

State action · SIF Oct 2025
State action · SIF Oct 2025
State action · SIA Oct 2025
State action · SIA Oct 2025
State action · SIE Oct 2025
State action · SIE Oct 2025
State action · SIA Dec 2024
State action · SIF Nov 2024

This profile is built from EPA public records for system AZ0415029 — 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.