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Lamona, WA Radon Levels

Check local Lamona radon levels and find certified testing and mitigation professionals to keep your home safe


Lamona, WA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Lincoln County, WA
Zip Code 99144

Positioned in Lincoln County within Washington's Palouse wheat country, Lamona sits over Columbia River basalt formations that typically produce moderate radon levels. With limited testing data available for zip code 99144, homeowners should conduct professional radon testing to understand their property's specific risk. Rural homes with varying foundation types may experience different radon accumulation patterns depending on construction style and local soil conditions.

Lamona, 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 Lamona, WA

What EPA Radon Zone is Lamona in?
Lamona and the 99144 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 Lamona?
Radon mitigation in Lamona 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 Lamona?
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 Washington

Cities in Washington with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Vancouver 6.56 pCi/L 9
Kent 3.50 pCi/L 6
Olympia 7.00 pCi/L 5
Seattle 5.25 pCi/L 4
Bellevue 3.75 pCi/L 4
Spokane 11.67 pCi/L 3
Camas 8.00 pCi/L 3
Centralia 7.00 pCi/L 3
Bellingham 4.50 pCi/L 2
Kirkland 4.50 pCi/L 2