Thompson, IA resides in Winnebago 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. Testing is recommended for all homes in the 50478 zip code area.
Thompson, IA Radon Mitigation
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Thompson, IA Radon Testing
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Thompson Radon Facts
Key details about the radon risk profile for Thompson and the 50478 zip code area.
EPA Radon Zone
Zone 1 — High Risk
County
Winnebago County, IA
Zip Code
50478
Predicted Screening Level
> 4.0 pCi/L (Zone 1)
Thompson and the 50478 zip code are located in Winnebago County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Thompson, IA
What EPA Radon Zone is Thompson in?
Thompson and the 50478 zip code are in Winnebago 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.
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