CONFLUENCE RIVERS M & M MHP WTP

DES PERES, MO · ~100 people served

Check your exact address → DES PERES overview

100

Excellent

PurityRadar safety score

PWSID

MO1041228

State

Missouri

City

DES PERES

Population served

100

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 2025. Official EPA record →

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Monitoring & reporting · Total coliform began Apr 2013 Resolved

Monitoring & reporting · Total coliform began Nov 2009 Resolved

Monitoring & reporting · Thallium began Jan 2008 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2006 Resolved

Max contaminant level (MCL) · Total coliform health-based began Apr 2006 Resolved

Monitoring & reporting · Total coliform began Feb 2006 Resolved

Max contaminant level (MCL) · Total coliform health-based began Oct 2005 Resolved

Monitoring & reporting · Total coliform began Aug 2004 Resolved

Monitoring & reporting · Total coliform began Sep 2001 Resolved

Monitoring & reporting · Thallium began Jan 2000 Resolved

Monitoring & reporting · Total coliform began Aug 1999 Resolved

Recent enforcement actions

State action · SOX Mar 2025
State action · SIA Mar 2025
State action · SIE Mar 2025
State action · SIA Jan 2016
State action · SOX Jan 2014
State action · SIF Jun 2013
State action · SIE May 2013
State action · SIA May 2013

This profile is built from EPA public records for system MO1041228 — 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.