MARSTON PWS

MARSTON, MO · ~503 people served

Check your exact address → MARSTON overview

100

Excellent

PurityRadar safety score

PWSID

MO4010504

State

Missouri

City

MARSTON

Population served

503

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 May 2021. Official EPA record →

Other · EPA contaminant 7000 began Jul 2020 Resolved

Monitoring · Lead & Copper Rule began Jul 2020 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Other · EPA contaminant 7500 began Jan 2012 Resolved

Treatment technique · EPA contaminant 0700 health-based began Oct 2011 Resolved

Monitoring & reporting · Total coliform began May 2010 Resolved

Monitoring & reporting · Total coliform began Aug 2008 Resolved

Monitoring & reporting · EPA contaminant 0600 began Apr 2008 Resolved

Monitoring & reporting · Lead & Copper Rule began Oct 2004 Resolved

Monitoring & reporting · Total coliform began May 2003 Resolved

Monitoring & reporting · Total coliform began Jul 2000 Resolved

Other · EPA contaminant 7000 began Oct 1999 Resolved

Recent enforcement actions

State action · SIF May 2021
State action · SOX Nov 2020
State action · SIE Aug 2020
State action · SIA Aug 2020
State action · SOX Aug 2020
State action · SOX Jan 2014
State action · SOX Oct 2013
State action · SIF Dec 2012

This profile is built from EPA public records for system MO4010504 — 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.