MAGNOLIA-RESOLVE WHISPERWOOD

DES PERES, MO · ~6,867 people served

Check your exact address → DES PERES overview

100

Excellent

PurityRadar safety score

PWSID

LA1103046

State

Missouri

City

DES PERES

Population served

6,867

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

Latest detections from EPA’s UCMR5 monitoring (through Jul 2025). Levels in parts per trillion (ppt).

Lithium

9,350 ppt

limit —

No federal limit

Violations & enforcement

Violations on record

Unaddressed

Health-based

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2019. Official EPA record →

Other · EPA contaminant 7000 began Oct 2017 Resolved

Monitoring & reporting · Lead & Copper Rule began Jan 1993 Resolved

Recent enforcement actions

State action · SOX Jul 2019
State action · SIA Dec 2017
State action · SOX Dec 1994
State action · SFJ Sep 1987
State action · SIF Sep 1987
State action · SIE Sep 1987
State action · SIE Sep 1981

This profile is built from EPA public records for system LA1103046 — 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.