CAHOKIA HEIGHTS

CAHOKIA HEIGHTS, IL · ~15,250 people served

Check your exact address → CAHOKIA HEIGHTS overview

100

Excellent

PurityRadar safety score

PWSID

IL1635000

State

Illinois

City

CAHOKIA HEIGHTS

Population served

15,250

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

Latest detections from EPA’s UCMR5 monitoring (through Oct 2024). Levels in parts per trillion (ppt).

Lithium

21,800 ppt

limit —

No federal limit

PFBA

15 ppt

limit —

No federal limit

PFHxA

3.6 ppt

limit —

No federal limit

PFPeA

3 ppt

limit —

No federal limit

Violations & enforcement

No violations are on record for this system in EPA’s SDWIS/ECHO data.

This profile is built from EPA public records for system IL1635000 — 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.