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Water system · PWSID MO2010502

MARSHALL PWS

MARSHALL, MO · ~12,934 people served

Check your exact address → MARSHALL overview
100
Excellent
PurityRadar safety score

PWSID

MO2010502

State

Missouri

City

MARSHALL

Population served

12,934

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 Aug 2024). Levels in parts per trillion (ppt).

Lithium

13,800 ppt

limit —

No federal limit

Violations & enforcement

11

Violations on record

0

Unaddressed

11

Health-based

45

Enforcement actions

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

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2018 Resolved
Treatment technique · EPA contaminant 0700 health-based began May 2018 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2017 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2015 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2014 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2014 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2013 Resolved

Recent enforcement actions

  • State action · SIF Jan 2019
  • State action · SFJ Dec 2018
  • State action · SIE Dec 2018
  • State action · SIF Aug 2018
  • State action · SOX Jul 2018
  • State action · SIE Jun 2018
  • State action · SFJ Jun 2018
  • State action · SOX Feb 2018

This profile is built from EPA public records for system MO2010502 — 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.