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Water system · PWSID MO1021117

HENRY COUNTY PWSD 3

100
Excellent
PurityRadar safety score

PWSID

MO1021117

State

Missouri

City

CLINTON

Population served

2,993

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

7

Violations on record

0

Unaddressed

5

Health-based

22

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Feb 2017. Official EPA record →

Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Apr 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jan 2016 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Oct 2015 Resolved
Max contaminant level (MCL) · Total coliform health-based began Dec 2007 Resolved
Monitoring & reporting · Total coliform began Jan 2003 Resolved
Monitoring & reporting · Gross alpha began Jan 1995 Resolved

Recent enforcement actions

  • State action · SOX Feb 2017
  • State action · SIF Dec 2016
  • State action · SIE Nov 2016
  • State action · SFJ Nov 2016
  • State action · SIF Sep 2016
  • State action · SIE Aug 2016
  • State action · SFJ Aug 2016
  • State action · SFJ May 2016

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Manganese

6 stations · latest Jun 2025

565 · max 21,400 ug/L · 27

Copper

6 stations · latest Jun 2025

1.16 · max 3.8 ug/L · 23

Arsenic

2 stations · latest Jun 2025

0.72 · max 0.96 ug/L · 3

Lead

3 stations · latest Dec 2024

1.12 · max 1.14 ug/L · 3

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system MO1021117 — 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.