CHICKASAW HILLS SUBDIVISION

DES PERES, MO · ~240 people served

Check your exact address → DES PERES overview

100

Excellent

PurityRadar safety score

PWSID

MS0540021

State

Missouri

City

DES PERES

Population served

240

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 Jun 2022. Official EPA record →

Monitoring · Lead & Copper Rule began Mar 2022 Resolved

Monitoring & reporting · EPA contaminant 0999 began Jan 2022 Resolved

Monitoring & reporting · EPA contaminant 4020 began Apr 2011 Resolved

Monitoring & reporting · EPA contaminant 4030 began Apr 2011 Resolved

Monitoring & reporting · Combined radium-226/228 began Apr 2011 Resolved

Monitoring & reporting · EPA contaminant 4020 began Jan 2011 Resolved

Monitoring & reporting · EPA contaminant 4030 began Jan 2011 Resolved

Monitoring & reporting · Combined radium-226/228 began Jan 2011 Resolved

Monitoring & reporting · Combined radium-226/228 began Oct 2010 Resolved

Monitoring & reporting · EPA contaminant 4020 began Oct 2010 Resolved

Monitoring & reporting · EPA contaminant 4030 began Oct 2010 Resolved

Monitoring & reporting · Combined radium-226/228 began Jul 2010 Resolved

Recent enforcement actions

State action · SOX Jun 2022
State action · SIF May 2022
State action · SIE Apr 2022
State action · SFJ Apr 2022
State action · SIE Apr 2022
State action · SFJ Apr 2022
State action · SOX Apr 2022
State action · SOX Jun 2012

This profile is built from EPA public records for system MS0540021 — 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.