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Water system · PWSID MO6010659

POTOSI PWS

POTOSI, MO · ~2,527 people served

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

PWSID

MO6010659

State

Missouri

City

POTOSI

Population served

2,527

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

64

Violations on record

0

Unaddressed

52

Health-based

172

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2024. Official EPA record →

Other · EPA contaminant 7500 began Apr 2024 Resolved
Monitoring · Lead & Copper Rule began Mar 2023 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2013 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2012 Resolved
Other · EPA contaminant 7500 began Nov 2011 Resolved
Other · EPA contaminant 7500 began Sep 2011 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2011 Resolved

Recent enforcement actions

  • State action · SIF May 2024
  • State action · SOX May 2024
  • State action · SIA Apr 2023
  • State action · SIE Apr 2023
  • State action · SOX Apr 2023
  • State action · SOX May 2016
  • State action · SOX Feb 2016
  • State action · SIF Feb 2016

This profile is built from EPA public records for system MO6010659 — 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.