GREAT LAKES NAVAL TRAINING STATION

GREAT LAKES, IL · ~23,000 people served

Check your exact address → GREAT LAKES overview

100

Excellent

PurityRadar safety score

PWSID

IL0975227

State

Illinois

City

GREAT LAKES

Population served

23,000

Primary source

Surface water

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 Oct 2023. Official EPA record →

Monitoring & reporting · EPA contaminant 0200 began Jul 2020 Resolved

Max contaminant level (MCL) · Total coliform health-based began Sep 2008 Resolved

Monitoring & reporting · Total coliform began Sep 2008 Resolved

Monitoring & reporting · EPA contaminant 2981 began Apr 1989 Resolved

Monitoring & reporting · EPA contaminant 2982 began Apr 1989 Resolved

Monitoring & reporting · EPA contaminant 2969 began Apr 1989 Resolved

Monitoring & reporting · EPA contaminant 2990 began Apr 1989 Resolved

Monitoring & reporting · EPA contaminant 2984 began Apr 1989 Resolved

Monitoring & reporting · EPA contaminant 2977 began Apr 1989 Resolved

Monitoring & reporting · EPA contaminant 2980 began Apr 1989 Resolved

Recent enforcement actions

EPA/federal action · EFL Oct 2023
State action · SIF Jun 2021
State action · SOX Sep 2020
State action · SIA Aug 2020
State action · SIE Aug 2020
State action · SOX Apr 2009
State action · SIF Nov 2008
State action · SIA Oct 2008

This profile is built from EPA public records for system IL0975227 — 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.