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Water system · PWSID MO6031237

HAYFIELD WATER WORKS

EUREKA, MO · ~45 people served

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

PWSID

MO6031237

State

Missouri

City

EUREKA

Population served

45

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

11

Violations on record

0

Unaddressed

5

Health-based

29

Enforcement actions

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

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2014 Resolved
Monitoring & reporting · EPA contaminant 3014 began Dec 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Nov 2012 Resolved
Max contaminant level (MCL) · Total coliform health-based began Sep 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2008 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2007 Resolved
Other · EPA contaminant 7000 began Jul 2003 Resolved
Other · EPA contaminant 7000 began Jul 2002 Resolved
Monitoring & reporting · Total coliform began Jan 2002 Resolved
Monitoring & reporting · Total coliform began Oct 1999 Resolved

Recent enforcement actions

  • State action · SOX Apr 2025
  • State action · SOX Sep 2014
  • State action · SIF Aug 2014
  • State action · SFJ Jul 2014
  • State action · SIE Jul 2014
  • State action · SOX Jan 2014
  • State action · SOX Jan 2014
  • State action · SIF Jan 2013

This profile is built from EPA public records for system MO6031237 — 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.