Grafton, WI Radon Levels
Check local Grafton radon levels and find certified testing and mitigation professionals to keep your home safe
Grafton, WI Radon Facts
Situated in Ozaukee County within the Milwaukee Metro area, Grafton has measured a significant average radon level of 17.0 pCi/L — more than four times EPA action guidelines. The community sits atop glacial deposits over Silurian dolomite bedrock, creating conditions highly favorable for radon gas production and migration. Homes throughout zip code 53024 with full basements common to southeastern Wisconsin provide ideal environments for radon accumulation from the uranium-rich glacial till.
Based on 1 user-submitted radon test for homes in Grafton, WI. The EPA recommends taking action at or above 4.0 pCi/L.
Grafton, WI Radon Mitigation
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Grafton, WI Radon Levels
User-submitted radon test readings from homes in the Grafton area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 17 pCi/L | grafton, WI | 21-50 Years | Full Basement |
Have a radon test result for Grafton? Submit your reading to help other homeowners.
Radon Readings Near Grafton, WI
Compare radon levels in Grafton with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Cedarburg | 2.9 mi | 6.00 pCi/L | 1 |
| Mequon | 5.9 mi | 6.00 pCi/L | 1 |
| Thiensville | 6.2 mi | 5.00 pCi/L | 1 |
| Menomonee Falls | 13.9 mi | 6.50 pCi/L | 2 |
| West Bend | 14.2 mi | 8.00 pCi/L | 1 |
| Slinger | 16.6 mi | 20.00 pCi/L | 1 |
| Kewaskum | 18.3 mi | 8.00 pCi/L | 1 |
| Milwaukee | 18.7 mi | 10.00 pCi/L | 3 |
Ozaukee County Radon Profile
The soils and bedrock of Ozaukee County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 4 cities in Ozaukee County average 8.50 pCi/L across 4 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Ozaukee County to test, as levels can differ between neighboring homes.