CheckPFAS

ZIP Code 53593

Low Level
Low Level PFAS Risk Level
3
PFAS Detected
0
Above EPA Limits
2
Water Systems
73%
Highest % of MCL

MADISON WATER UTILITY

WI1130224 Low Level
Water Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Wisconsin
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFHxS
Perfluorohexane sulfonic acid
7.30ppt
73% of limit
10 pptBelow limit
PFBA
Perfluorobutanoic acid
46.50pptNo federal limitUnregulated

VERONA WATERWORKS

WI1130259 Low Level
Water Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Wisconsin
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFBS
Perfluorobutane sulfonic acid
3.50pptNo federal limitUnregulated
Note: ZIP code 53593 is served by 2 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 →