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Water system · PWSID MO2010804

UNIONVILLE PWS

UNIONVILLE, MO · ~1,735 people served

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

PWSID

MO2010804

State

Missouri

City

UNIONVILLE

Population served

1,735

Primary source

SWP

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

12

Violations on record

0

Unaddressed

7

Health-based

35

Enforcement actions

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

Monitoring · Lead & Copper Rule began Nov 2024 Resolved
Other · EPA contaminant 7500 began Oct 2021 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jul 2021 Resolved
Treatment technique · EPA contaminant 0300 health-based began Jul 2021 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Oct 2015 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jul 2015 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2015 Resolved
Monitoring & reporting · Lead & Copper Rule began Jan 2011 Resolved
Treatment technique · EPA contaminant 0200 health-based began Mar 2001 Resolved
Treatment technique · EPA contaminant 0200 health-based began Aug 1993 Resolved

Recent enforcement actions

  • State action · SIF Aug 2025
  • State action · SIA Jan 2025
  • State action · SIE Jan 2025
  • State action · SOX Dec 2024
  • State action · SIF Mar 2022
  • State action · SOX Feb 2022
  • State action · SIF Jan 2022
  • State action · SIE Sep 2021

This profile is built from EPA public records for system MO2010804 — 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.