SYLVAN LAKE 1ST SUBDIVISION

MUNDELEIN, IL · ~210 people served

Check your exact address → MUNDELEIN overview

100

Excellent

PurityRadar safety score

PWSID

IL0977100

State

Illinois

City

MUNDELEIN

Population served

210

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

Violations on record

Unaddressed

Health-based

Enforcement actions

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

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Jul 2025 Unaddressed

Monitoring & reporting · Lead & Copper Rule began Oct 2024 Unaddressed

Reporting · EPA contaminant 5200 began Oct 2024 Resolved

Other · EPA contaminant 7000 began Jul 2009 Resolved

Other · EPA contaminant 7500 began Nov 2003 Resolved

Monitoring & reporting · Nitrate began Jan 2003 Resolved

Recent enforcement actions

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

This profile is built from EPA public records for system IL0977100 — 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.