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Water system · PWSID IL0374870

SOMONAUK

SOMONAUK, IL · ~1,860 people served

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

PWSID

IL0374870

State

Illinois

City

SOMONAUK

Population served

1,860

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

3

Violations on record

0

Unaddressed

2

Health-based

3

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2007. Official EPA record →

Other · EPA contaminant 7000 began Jul 2007 Resolved
Treatment technique · Lead & Copper Rule health-based began Aug 1995 Resolved
Treatment technique · Lead & Copper Rule health-based began Jan 1995 Resolved

Recent enforcement actions

  • State action · SIA Jul 2007
  • State action · SOX Jul 2007
  • State action · SOX Feb 1997

This profile is built from EPA public records for system IL0374870 — 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.