CheckPFAS

ZIP Code 62864

Low Level
Low Level PFAS Risk Level
4
PFAS Detected
0
Above EPA Limits
4
Water Systems
N/A
Highest % of MCL

NORTHEAST MOUNT VERNON WATER COMPANY

IL0810010 Low Level
Water Type
Surface Water
PFAS Detected
1
Above MCL
0
State
Illinois
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
5.70pptNo federal limitUnregulated

MOUNT VERNON

IL0810300 Low Level
Water Type
Surface Water
PFAS Detected
1
Above MCL
0
State
Illinois
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
9.90pptNo federal limitUnregulated

WOODLAWN

IL0810450 Low Level
Water Type
Surface Water
PFAS Detected
1
Above MCL
0
State
Illinois
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
5.00pptNo federal limitUnregulated

CORINTH PWD

IL1995120 Low Level
Water Type
Surface Water
PFAS Detected
1
Above MCL
0
State
Illinois
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBA
Perfluorobutanoic acid
5.60pptNo federal limitUnregulated
Note: ZIP code 62864 is served by 4 separate water utilities. Results above show data for each system independently.

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 →