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Water system · PWSID IL1110900

UNION

UNION, IL · ~594 people served

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

PWSID

IL1110900

State

Illinois

City

UNION

Population served

594

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

25

Violations on record

1

Unaddressed

4

Health-based

64

Enforcement actions

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

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed
Other · EPA contaminant 7000 began Jul 2025 Resolved
Other · EPA contaminant 7500 began Jan 2010 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2009 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2009 Resolved
Other · EPA contaminant 7500 began Mar 2007 Resolved
Other · EPA contaminant 7500 began Mar 2007 Resolved
Other · EPA contaminant 7500 began Aug 2006 Resolved
Other · EPA contaminant 7500 began Aug 2006 Resolved
Max contaminant level (MCL) · Uranium health-based began Jul 2006 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2006 Resolved
Monitoring & reporting · Uranium began Oct 2005 Resolved

Recent enforcement actions

  • State action · SOX Sep 2025
  • State action · SIA Jul 2025
  • State action · SIE Jul 2025
  • State action · SIA Jul 2025
  • State action · SIA Feb 2010
  • State action · SIF Feb 2010
  • State action · SOX Jan 2010
  • State action · SOX Dec 2009

This profile is built from EPA public records for system IL1110900 — 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.