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Water system · PWSID MO1010349

HARRISONVILLE PWS

100
Excellent
PurityRadar safety score

PWSID

MO1010349

State

Missouri

City

HARRISONVILLE

Population served

10,019

Primary source

Surface water

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

14

Violations on record

0

Unaddressed

8

Health-based

46

Enforcement actions

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

Monitoring & reporting · EPA contaminant 0300 began Dec 2024 Resolved
Monitoring & reporting · EPA contaminant 0300 began Dec 2024 Resolved
Monitoring & reporting · EPA contaminant 0200 began Dec 2024 Resolved
Other · EPA contaminant 7000 began Jul 2021 Resolved
Other · EPA contaminant 7000 began Jul 2019 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began May 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2005 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Jul 2005 Resolved
Max contaminant level (MCL) · Haloacetic acids (HAA5) health-based began Apr 2005 Resolved
Treatment technique · Bromate health-based began Jan 2004 Resolved
Max contaminant level (MCL) · Total trihalomethanes (TTHM) health-based began Jul 1994 Resolved

Recent enforcement actions

  • State action · SIF Jun 2025
  • State action · SIF Jun 2025
  • State action · SIF Jun 2025
  • State action · SOX Feb 2025
  • State action · SIE Jan 2025
  • State action · SIA Jan 2025
  • State action · SIE Jan 2025
  • State action · SIE Jan 2025

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

Nitrate

1 station · latest Jul 2021

0.006 · max 0.377 mg/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 MO1010349 — 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.