OAKBROOK TERRACE

OAKBROOK TERRACE, IL · ~1,440 people served

Check your exact address → OAKBROOK TERRACE overview

100

Excellent

PurityRadar safety score

PWSID

IL0430750

State

Illinois

City

OAKBROOK TERRACE

Population served

1,440

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 Jan 2021. Official EPA record →

Monitoring & reporting · Lead & Copper Rule began Dec 2020 Resolved

Other · EPA contaminant 7000 began Jul 2013 Resolved

Recent enforcement actions

State action · SOX Jan 2021
State action · SIA Jan 2021
State action · SOX May 2014
State action · SIA Aug 2013

This profile is built from EPA public records for system IL0430750 — 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.