RIVERWOODS

VERNON HILLS, IL · ~3,618 people served

Check your exact address → VERNON HILLS overview

100

Excellent

PurityRadar safety score

PWSID

IL0971450

State

Illinois

City

VERNON HILLS

Population served

3,618

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 Jun 2025. Official EPA record →

Monitoring & reporting · Total trihalomethanes (TTHM) began Jul 2024 Resolved

Monitoring · Lead & Copper Rule began Nov 2019 Resolved

Monitoring & reporting · EPA contaminant 0999 began Oct 2019 Resolved

Monitoring & reporting · Total trihalomethanes (TTHM) began Jun 2016 Resolved

Monitoring & reporting · Haloacetic acids (HAA5) began Jun 2016 Resolved

Treatment technique · EPA contaminant 0300 health-based began Apr 2005 Resolved

Recent enforcement actions

State action · SIF Jun 2025
State action · SOX Nov 2024
State action · SIA Oct 2024
State action · SIE Oct 2024
State action · SIF Jul 2020
State action · SIF Jul 2020
State action · SOX Dec 2019
State action · SIE Dec 2019

This profile is built from EPA public records for system IL0971450 — 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.