MISSION BROOK SD

NORTHBROOK, IL · ~2,852 people served

Check your exact address → NORTHBROOK overview

100

Excellent

PurityRadar safety score

PWSID

IL0315920

State

Illinois

City

NORTHBROOK

Population served

2,852

Primary source

SWP

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Reporting · EPA contaminant 5200 began Oct 2024 Unaddressed

Reporting · EPA contaminant 5200 began Jul 2025 Resolved

Max contaminant level (MCL) · Uranium health-based began Dec 1994 Resolved

Max contaminant level (MCL) · Uranium health-based began Dec 1990 Resolved

Max contaminant level (MCL) · Uranium health-based began Sep 1988 Resolved

Max contaminant level (MCL) · Gross alpha health-based began Feb 1985 Resolved

Max contaminant level (MCL) · Uranium health-based began Sep 1984 Resolved

Recent enforcement actions

State action · SOX Dec 2025
State action · SIA Jul 2025
State action · SIE Jul 2025
State action · SIE Jul 2025
State action · SIA Jul 2025
State action · SOX Feb 1996
State action · SO6 Mar 1993
State action · SIF Sep 1992

This profile is built from EPA public records for system IL0315920 — 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.