Lyle, WA Radon Levels

Q: What EPA Radon Zone is Lyle in?

Lyle is in Klickitat County, EPA Zone 2.

Q: How much does radon mitigation cost in Lyle?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

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

Lyle, WA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Klickitat County, WA

Zip Code 98635

Positioned along the Columbia River in south-central Washington's Klickitat County, Lyle sits over volcanic basalt formations and river terrace deposits. The 98635 zip code area features diverse housing from historic homes to newer construction, with foundation types varying from full basements to slab-on-grade depending on the terrain. Testing data is currently limited, making radon measurement important for homeowners to understand their specific risk levels in this geologically complex river valley setting.

Lyle, 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 Lyle, WA

What EPA Radon Zone is Lyle in?

Lyle and the 98635 zip code are in Klickitat 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 Lyle?

Radon mitigation in Lyle 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 Lyle?

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.

City	Avg User Radon Level	Submissions
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