CheckPFAS

ZIP Code 60410

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

2 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.

7
PFAS Detected
2
Above EPA Limits
1
Water System
148%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 148% of limit
Detected: 5.90 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 115% of limit
Detected: 4.60 ppt
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CHANNAHON

IL1970200 High Risk
Water Type
Groundwater
PFAS Detected
7
Above MCL
2
State
Illinois
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
5.90ppt
148% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
4.60ppt
115% of limit
4 ppt⚠ Exceeds MCL
lithium
69000.00pptNo federal limit—Unregulated
PFBS
Perfluorobutane sulfonic acid
17.00pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
13.00pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
9.90pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
8.60pptNo federal limit—Unregulated

Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.

UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.

Detection values represent the highest single-sample result measured at entry points to the distribution system.

View raw EPA data →