ZIP Code 53072
High RiskPFAS above EPA limits detected
3 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.
16
PFAS Detected
3
Above EPA Limits
2
Water Systems
690%
Highest % of MCL
Compounds Exceeding EPA Limits
PFHxS Exceeds EPA limit
0 ppt MCL: 10 ppt 690% of limit
Detected: 69.00 ppt
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 300% of limit
Detected: 12.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 213% of limit
Detected: 8.50 ppt
PEWAUKEE CITY WATER AND SEWER UTILITY
WI2680214 High RiskWater Type
Groundwater
PFAS Detected
11
Above MCL
3
State
Wisconsin
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFHxS Perfluorohexane sulfonic acid | 69.00ppt | 690% of limit
| 10 ppt | ⚠ Exceeds MCL |
PFOS Perfluorooctane sulfonic acid | 12.00ppt | 300% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 8.50ppt | 213% of limit
| 4 ppt | ⚠ Exceeds MCL |
lithium | 11000.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 40.00ppt | No federal limit | — | Unregulated |
6:2 FTS 6:2 Fluorotelomer sulfonic acid | 35.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 27.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 24.00ppt | No federal limit | — | Unregulated |
Show 3 more compounds detected at low levels
| PFPeS | 21.00 ppt | No federal limit |
| PFBAPerfluorobutanoic acid | 13.00 ppt | No federal limit |
| PFHpAPerfluoroheptanoic acid | 8.00 ppt | No federal limit |
BROOKFIELD WATER UTILITY
WI2680253 ModerateWater Type
Groundwater
PFAS Detected
5
Above MCL
0
State
Wisconsin
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFHxS Perfluorohexane sulfonic acid | 3.20ppt | 32% of limit
| 10 ppt | Below limit |
lithium | 14000.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.70ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 4.40ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 3.30ppt | No federal limit | — | Unregulated |
Note: ZIP code 53072 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.