MAGNOLIA-PENN MILL LAKES

DES PERES, MO · ~1,152 people served

Check your exact address → DES PERES overview

100

Excellent

PurityRadar safety score

PWSID

LA1103185

State

Missouri

City

DES PERES

Population served

1,152

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 Mar 2014. Official EPA record →

Other · EPA contaminant 7000 began Oct 2013 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Other · EPA contaminant 7000 began Oct 2010 Resolved

Other · EPA contaminant 7000 began Jul 2010 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 2008 Resolved

Other · EPA contaminant 7000 began Jul 2006 Resolved

Recent enforcement actions

State action · SOX Mar 2014
State action · SOX Mar 2014
State action · SIA Dec 2013
State action · SIA Dec 2013
State action · SOX Dec 2013
State action · SOX Nov 2010
State action · SIA Oct 2010
State action · SIA Oct 2010

This profile is built from EPA public records for system LA1103185 — 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.