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Water system · PWSID MO4010501

MARQUAND PWS

MARQUAND, MO · ~253 people served

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

PWSID

MO4010501

State

Missouri

City

MARQUAND

Population served

253

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

23

Violations on record

1

Unaddressed

7

Health-based

75

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Oct 2025. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2023 Unaddressed
Other · EPA contaminant 7500 began Oct 2025 Resolved
Monitoring · Lead & Copper Rule began Aug 2024 Resolved
Monitoring · Lead & Copper Rule began Sep 2020 Resolved
Monitoring & reporting · Total coliform began Oct 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2010 Resolved
Other · EPA contaminant 7000 began Jul 2007 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 1996 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 1996 Resolved

Recent enforcement actions

  • State action · SOX Oct 2025
  • State action · SIF Oct 2025
  • State action · SIE Sep 2024
  • State action · SIA Sep 2024
  • State action · SOX Sep 2024
  • State action · SIF Nov 2020
  • State action · SOX Oct 2020
  • State action · SIE Oct 2020

This profile is built from EPA public records for system MO4010501 — 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.