Gresham, WI Radon Levels
Check local Gresham radon levels and find certified testing and mitigation professionals to keep your home safe
Gresham, WI Radon Facts
Nestled in Shawano County among Wisconsin's glacial terrain, Gresham shows an average radon level of 9.0 pCi/L based on initial testing data, significantly exceeding the EPA action threshold of 4.0 pCi/L. The underlying Precambrian bedrock and glacial deposits in zip code 54128 create conditions highly favorable for radon accumulation. Homeowners should prioritize radon testing and mitigation given these elevated readings and the EPA Zone 1 designation.
Based on 1 user-submitted radon test for homes in Gresham, WI. The EPA recommends taking action at or above 4.0 pCi/L.
Gresham, WI Radon Mitigation
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Gresham, WI Radon Levels
User-submitted radon test readings from homes in the Gresham area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 9 pCi/L | Gresham, WI | 21-50 Years | Full Basement |
Have a radon test result for Gresham? Submit your reading to help other homeowners.
Radon Readings Near Gresham, WI
Compare radon levels in Gresham with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Wittenberg | 18.6 mi | 11.00 pCi/L | 1 |
| Antigo | 25.8 mi | 19.00 pCi/L | 1 |
| Mountain | 28.8 mi | 16.00 pCi/L | 1 |
| Pulaski | 29.0 mi | 4.00 pCi/L | 1 |
| Deerbrook | 32.9 mi | 8.00 pCi/L | 1 |
| Townsend | 33.1 mi | 6.00 pCi/L | 1 |
| Pearson | 37.0 mi | 7.00 pCi/L | 1 |
| Greenville | 40.2 mi | 7.00 pCi/L | 1 |
Shawano County Radon Profile
Because of its underlying geology, Shawano County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Shawano County average 8.00 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Shawano County home regardless of zone or a neighbor's results.