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Water system · PWSID IL0970350

GURNEE

GURNEE, IL · ~30,193 people served

Check your exact address → GURNEE overview
100
Excellent
PurityRadar safety score

PWSID

IL0970350

State

Illinois

City

GURNEE

Population served

30,193

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

11

Violations on record

0

Unaddressed

3

Health-based

57

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement May 2021. Official EPA record →

Monitoring · Lead & Copper Rule began May 2020 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2020 Resolved
Other · EPA contaminant 7000 began Jul 2018 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Dec 2017 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Dec 2017 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jun 2011 Resolved
Monitoring & reporting · Total coliform began Jun 2010 Resolved
Monitoring & reporting · EPA contaminant 0999 began Apr 2010 Resolved
Max contaminant level (MCL) · Total coliform health-based began Jul 2009 Resolved
Max contaminant level (MCL) · Uranium health-based began Oct 1985 Resolved

Recent enforcement actions

  • State action · SIF May 2021
  • State action · SIF May 2021
  • State action · SOX Jun 2020
  • State action · SIE Jun 2020
  • State action · SIA Jun 2020
  • State action · SIE Jun 2020
  • State action · SIA Jun 2020
  • State action · SIA Aug 2018

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

Arsenic

1 station · latest May 2021

1 · max 1 ug/l · 1

Copper

1 station · latest May 2021

0.8 · max 0.8 ug/l · 1

Fluoride

1 station · latest May 2021

0.18 · max 0.18 mg/l · 1

Manganese

1 station · latest May 2021

96.1 · max 96.1 ug/l · 1

Uranium

1 station · latest May 2021

2.29 · max 2.29 ug/l · 1

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 IL0970350 — 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.