MAGNOLIA-SOUTHFIELD SQUARE

DES PERES, MO · ~279 people served

Check your exact address → DES PERES overview

100

Excellent

PurityRadar safety score

PWSID

LA1055128

State

Missouri

City

DES PERES

Population served

279

Primary source

GWP

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 2020. Official EPA record →

Treatment technique · EPA contaminant 0700 health-based began Nov 2019 Resolved

Monitoring & reporting · Total coliform began May 2014 Resolved

Monitoring & reporting · EPA contaminant 0999 began Apr 2014 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2013 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2013 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 2008 Resolved

Monitoring & reporting · Total coliform began Jul 2006 Resolved

Recent enforcement actions

State action · SOX Mar 2020
State action · SIF Dec 2019
State action · SIE Nov 2019
State action · SIA Nov 2019
State action · SOX Sep 2017
State action · SOX Sep 2014
State action · SOX Sep 2014
State action · SIF Aug 2014

This profile is built from EPA public records for system LA1055128 — 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.