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Water system · PWSID MO3021236

MARIES COUNTY PWSD 1 SOUTH

VIENNA, MO · ~300 people served

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

PWSID

MO3021236

State

Missouri

City

VIENNA

Population served

300

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

13

Violations on record

0

Unaddressed

5

Health-based

36

Enforcement actions

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

Monitoring · Lead & Copper Rule began Dec 2024 Resolved
Monitoring · Lead & Copper Rule began Jun 2020 Resolved
Other · EPA contaminant 7500 began Jan 2020 Resolved
Monitoring & reporting · Thallium began Jan 2019 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2018 Resolved
Monitoring & reporting · EPA contaminant 4020 began Jan 2014 Resolved
Monitoring & reporting · EPA contaminant 4030 began Jan 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2005 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2004 Resolved
Max contaminant level (MCL) · Total coliform health-based began Oct 2004 Resolved
Other · EPA contaminant 7000 began Jul 2004 Resolved

Recent enforcement actions

  • State action · SIF Feb 2025
  • State action · SIA Feb 2025
  • State action · SIE Feb 2025
  • State action · SOX Jan 2025
  • State action · SIF Jan 2021
  • State action · SOX Dec 2020
  • State action · SIF Sep 2020
  • State action · SIE Jul 2020

This profile is built from EPA public records for system MO3021236 — 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.