Chewelah, WA Radon Levels
Check local Chewelah radon levels and find certified testing and mitigation professionals to keep your home safe
Chewelah, WA Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Stevens County, WA
Zip Code
99109
Located in Stevens County within the Spokane Metro area, Chewelah serves ZIP code 99109 in Washington's EPA Zone 1, where radon levels are generally expected to be elevated. Testing data for this mountain community remains limited, making professional radon testing essential for homeowners to understand their specific exposure risks. The area's geological characteristics and seasonal climate variations can influence radon accumulation patterns in local homes.
Chewelah, WA 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 Chewelah, WA
What EPA Radon Zone is Chewelah in?
Chewelah and the 99109 zip code are in Stevens 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 Chewelah?
Radon mitigation in Chewelah 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 Chewelah?
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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