PFAS in Kewaskum, WI Drinking Water
PFAS data for Kewaskum, Wisconsin · 8,223 residents · 1 ZIP code
Recent water testing in Kewaskum, Wisconsin has returned PFAS readings above detection thresholds.
Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-04-05
PFAS in Kewaskum Tap Water
PFAS has been detected in Kewaskum, Wisconsin drinking water at a maximum level of 0.015 ppt — below the EPA MCL of 4 ppt (PFOA/PFOS individually).
This analysis covers 8,223 residents across 1 ZIP code in Kewaskum.
Kewaskum's overall water quality grade is C (69/100).
Is PFAS in Kewaskum Water Safe?
If you live in an affected ZIP code, consider installing a reverse osmosis or granular activated carbon filter certified under NSF 53 / NSF 58 and testing your water independently.
PFAS Levels by ZIP Code
| ZIP Code | PFAS Level | EPA Limit | Status |
|---|---|---|---|
| 53040 | 6 detections | 4 ppt (PFOA/PFOS individually) | Exceeds limit |
Average pfas level across Kewaskum: 6 ppt
Health Effects of PFAS
- Increased risk of kidney and testicular cancer
- Thyroid disease and immune system suppression
- Reproductive problems and reduced fertility
- Elevated cholesterol and liver effects
- Developmental effects in infants and children
Health risk severity: High. Governed by the PFAS National Primary Drinking Water Regulation (2024).
How PFAS Gets Into Drinking Water
- Firefighting foam (AFFF) used at military bases and airports
- Industrial manufacturing (non-stick coatings, stain-resistant fabrics)
- Wastewater treatment plants that receive industrial discharge
- Landfill leachate from PFAS-containing consumer products
What to Do About PFAS in Kewaskum Water
- Install a reverse osmosis system (most effective — removes 90%+ of PFAS)
- Granular activated carbon (GAC) filters remove some PFAS compounds
- Look for NSF 53 or NSF 58 certification specifically tested for PFAS
- Pitcher filters with activated carbon provide partial reduction
Look for filters certified under NSF 53 / NSF 58 for pfas removal.