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Water system · PWSID IL0970220

WHISPERING LAKES WATER SYSTEM, INC.

NORTHBROOK, IL · ~375 people served

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

PWSID

IL0970220

State

Illinois

City

NORTHBROOK

Population served

375

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

10

Violations on record

0

Unaddressed

6

Health-based

37

Enforcement actions

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

Monitoring & reporting · Uranium began Jan 2024 Resolved
Monitoring & reporting · Total coliform began Sep 2010 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jul 2010 Resolved
Monitoring & reporting · Uranium began Jan 2009 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2003 Resolved
Max contaminant level (MCL) · Uranium health-based began Jan 2003 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 2002 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 2002 Resolved
Max contaminant level (MCL) · Gross alpha health-based began Jan 2000 Resolved
Max contaminant level (MCL) · Uranium health-based began Apr 1998 Resolved

Recent enforcement actions

  • State action · SIF Jul 2025
  • State action · SIF Jul 2025
  • State action · SOX Apr 2025
  • State action · SOX Apr 2025
  • State action · SOX Apr 2025
  • State action · SIA Jan 2025
  • State action · SIE Jan 2025
  • State action · SIA Jan 2025

This profile is built from EPA public records for system IL0970220 — 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.