Thompson, UT Radon Levels
Check local Thompson radon levels and find certified testing and mitigation professionals to keep your home safe
Thompson, UT Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Grand County, UT
Zip Code
84540
Nestled in Grand County near Arches National Park, Thompson represents one of Utah's smaller communities in an area of sandstone formations and desert soils. The high-desert location typically produces lower radon levels, though individual properties can vary significantly based on local geological conditions. Without available testing data for the 84540 zip code area, residents should still consider radon testing as recommended by health authorities.
Thompson, UT Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Thompson, UT
What EPA Radon Zone is Thompson in?
Thompson and the 84540 zip code are in Grand County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Thompson?
Radon mitigation in Thompson typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Thompson?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
Most Active Radon Markets in Utah
Cities in Utah with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Vernal | 8.60 pCi/L | 5 |
| Logan | 8.00 pCi/L | 5 |
| Smithfield | 12.00 pCi/L | 4 |
| Bountiful | 6.75 pCi/L | 4 |
| Cedar City | 4.50 pCi/L | 4 |
| Eagle Mountain | 10.67 pCi/L | 3 |
| Heber City | 5.00 pCi/L | 3 |
| Brigham City | 9.00 pCi/L | 1 |
| Lehi | 7.00 pCi/L | 1 |
| Saint George | No submissions | 0 |