LISLE

LISLE, IL · ~24,233 people served

Check your exact address → LISLE overview

100

Excellent

PurityRadar safety score

PWSID

IL0430551

State

Illinois

City

LISLE

Population served

24,233

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 Sep 2025. Official EPA record →

Other · EPA contaminant 7000 began Jul 2025 Unaddressed

Other · EPA contaminant 7000 began Jul 2021 Resolved

Other · EPA contaminant 7000 began Jul 2012 Resolved

Max contaminant level (MCL) · Total coliform health-based began Aug 2011 Resolved

Max contaminant level (MCL) · Total coliform health-based began Jun 2006 Resolved

Recent enforcement actions

State action · SIA Sep 2025
State action · SOX Oct 2021
State action · SIA Oct 2021
State action · SOX Jul 2013
State action · SIA Aug 2012
State action · SOX Oct 2011
State action · SIF Sep 2011
State action · SIA Sep 2011

Area water-quality monitoring

Environmental monitoring (rivers, wells, intakes) recorded in this system’s service area in the EPA/USGS Water Quality Portal since 2018 — source/ambient water, not finished tap water. Context for the watershed, not a reading from your tap.

ContaminantMedian · max · samples

Manganese

1 station · latest Sep 2022

49.3 · max 78.6 ug/L · 26

Arsenic

1 station · latest Apr 2022

1.11 · max 1.51 ug/L · 20

Copper

1 station · latest Apr 2022

3.86 · max 7.54 ug/L · 18

Lead

1 station · latest Apr 2022

1.26 · max 1.7 ug/L · 8

Source: Water Quality Portal (EPA/USGS/state agencies). Values are as-reported and aren’t health thresholds.

This profile is built from EPA public records for system IL0430551 — 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.