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Water system · PWSID IL0310450

CHICAGO HEIGHTS

CHICAGO HEIGHTS, IL · ~26,184 people served

Check your exact address → CHICAGO HEIGHTS overview
100
Excellent
PurityRadar safety score

PWSID

IL0310450

State

Illinois

City

CHICAGO HEIGHTS

Population served

26,184

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

10

Violations on record

1

Unaddressed

0

Health-based

27

Enforcement actions

From EPA ECHO (SDWIS), most recent enforcement Jul 2025. Official EPA record →

Reporting · EPA contaminant 5200 began Jul 2025 Unaddressed
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2025 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2025 Resolved
Monitoring & reporting · Lead & Copper Rule began Oct 2023 Resolved
Monitoring · Lead & Copper Rule began Feb 2017 Resolved
Monitoring & reporting · EPA contaminant 0999 began Jan 2017 Resolved
Monitoring & reporting · Haloacetic acids (HAA5) began Jan 2015 Resolved
Monitoring & reporting · Total trihalomethanes (TTHM) began Jan 2015 Resolved
Other · EPA contaminant 7000 began Jul 2014 Resolved
Monitoring & reporting · Total coliform began Nov 2010 Resolved

Recent enforcement actions

  • State action · SIA Jul 2025
  • State action · SIE Jul 2025
  • State action · SOX Jun 2025
  • State action · SIE Apr 2025
  • State action · SIA Apr 2025
  • State action · SIF Jun 2024
  • State action · SOX Feb 2024
  • State action · SIE Oct 2023

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 Aug 2021

2.75 · max 4.14 ug/L · 4

Manganese

1 station · latest Aug 2021

111 · max 128 ug/L · 4

Lead

1 station · latest Aug 2021

1.44 · max 2.18 ug/L · 3

Copper

1 station · latest Aug 2021

1.17 · max 1.22 ug/L · 2

Fluoride

1 station · latest Aug 2021

0.235 · max 0.27 mg/L · 2

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 IL0310450 — 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.