Fontana, WI Radon Levels
Check local Fontana radon levels and find certified testing and mitigation professionals to keep your home safe
Fontana, WI Radon Facts
Positioned in Walworth County near Wisconsin's southern border, Fontana reports an average radon level of 4.5 pCi/L, slightly exceeding the EPA's recommended action threshold. The area's glacial soils over dolomite bedrock, combined with the region's typical basement construction, create conditions where radon can accumulate. Homeowners in zip code 53125 should maintain regular radon monitoring, especially given the community's proximity to Lake Geneva's recreational development.
Based on 2 user-submitted radon tests for homes in Fontana, WI. The EPA recommends taking action at or above 4.0 pCi/L.
Fontana, WI Radon Mitigation
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Fontana, WI Radon Levels
User-submitted radon test readings from homes in the Fontana area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 5 pCi/L | Fontana, WI | 51-99 Years | No Basement/All Crawl Space |
| 4 pCi/L | FONTANA, WI | 0-20 Years | Full Basement |
Have a radon test result for Fontana? Submit your reading to help other homeowners.
Radon Readings Near Fontana, WI
Compare radon levels in Fontana with the closest nearby cities that have user-submitted test data.
| City | Distance | Avg User Level | Readings |
|---|---|---|---|
| Williams Bay | 2.7 mi | 12.00 pCi/L | 1 |
| Delavan | 6.3 mi | 6.00 pCi/L | 1 |
| Lake Geneva | 6.5 mi | 5.00 pCi/L | 1 |
| Elkhorn | 11.0 mi | 5.00 pCi/L | 1 |
| Genoa City | 11.2 mi | 10.00 pCi/L | 1 |
| Burlington | 17.2 mi | 7.00 pCi/L | 1 |
| Waterford | 24.2 mi | 9.00 pCi/L | 2 |
| Milton | 25.5 mi | 11.50 pCi/L | 2 |
Walworth County Radon Profile
The bedrock and soils beneath Walworth County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 6 cities in Walworth County average 6.71 pCi/L across 7 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Walworth County.