Davenport, WA Radon Levels
Check local Davenport radon levels and find certified testing and mitigation professionals to keep your home safe
Davenport, WA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Lincoln County, WA
Zip Code
99122
Positioned in Lincoln County within the Spokane Metro area, Davenport sits on the Columbia Plateau where basalt flows and glacial deposits create variable radon conditions. The town's location in EPA Zone 2 indicates moderate radon potential, though individual homes can still exceed action levels. With limited local testing data available for zip code 99122, residents should conduct radon testing to determine their specific exposure risk.
Davenport, 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 Davenport, WA
What EPA Radon Zone is Davenport in?
Davenport and the 99122 zip code are in Lincoln County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Davenport?
Radon mitigation in Davenport 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 Davenport?
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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