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Water system · PWSID MO6024633

WASHINGTON COUNTY PWSD 1

POTOSI, MO · ~503 people served

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

PWSID

MO6024633

State

Missouri

City

POTOSI

Population served

503

Primary source

GWP

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

39

Violations on record

0

Unaddressed

18

Health-based

78

Enforcement actions

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

Other · EPA contaminant 7000 began Jul 2025 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Other · EPA contaminant 7500 began Jun 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Apr 2015 Resolved
Other · EPA contaminant 7000 began Jul 2012 Resolved
Other · EPA contaminant 7500 began Jan 2011 Resolved
Monitoring & reporting · Total coliform began Sep 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Aug 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2010 Resolved
Other · EPA contaminant 7000 began Jul 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jan 2010 Resolved

Recent enforcement actions

  • State action · SFJ Nov 2025
  • State action · SOX Nov 2025
  • State action · SOX Mar 2024
  • State action · SIF Mar 2024
  • State action · SOX Dec 2021
  • State action · SOX Jul 2015
  • State action · SIE May 2015
  • State action · SFJ May 2015

This profile is built from EPA public records for system MO6024633 — 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.