MAJESTIC LAKES

DES PERES, MO · ~512 people served

Check your exact address → DES PERES overview

100

Excellent

PurityRadar safety score

PWSID

MO6031412

State

Missouri

City

DES PERES

Population served

512

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 Sep 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Oct 2025 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2017 Resolved

Monitoring & reporting · EPA contaminant 4020 began Apr 2008 Resolved

Monitoring & reporting · EPA contaminant 4030 began Apr 2008 Resolved

Monitoring & reporting · Gross alpha began Jul 2007 Resolved

Monitoring & reporting · Uranium began Jul 2007 Resolved

Recent enforcement actions

State action · SIF Sep 2025
State action · SOX Sep 2025
State action · SIA Dec 2024
State action · SIE Dec 2024
State action · SOX Aug 2018
State action · SOX Jun 2018
State action · SIF Jan 2018
State action · SIE Dec 2017

This profile is built from EPA public records for system MO6031412 — 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.