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White Salmon, WA Radon Levels

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


White Salmon, WA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Klickitat County, WA
Zip Code 98672
Avg. User Level 5.00 pCi/L
User Tests 2

Perched along the Columbia River Gorge in Klickitat County, White Salmon benefits from its connection to the Portland Metro area while sitting on volcanic basalt formations typical of the Columbia Plateau. Local housing ranges from early 1900s homes to modern construction, with many properties built on concrete foundations to accommodate the area's sloping terrain. Recent testing shows an average radon level of 4.0 pCi/L, exactly at the EPA action threshold, indicating that homeowners in the 98672 zip code should consider mitigation evaluation.

5.00
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in White Salmon, WA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

White Salmon, WA Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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White Salmon, WA Radon Levels

User-submitted radon test readings from homes in the White Salmon area.

Radon LevelCityHome AgeFoundation
4 pCi/L White Salmon, WA 0-20 Years No Basement/All Slab

Have a radon test result for White Salmon? Submit your reading to help other homeowners.

Radon FAQ for White Salmon, WA

What is the average radon level in White Salmon, WA?
Based on 2 user-submitted tests, the average radon level in White Salmon is 5.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is White Salmon in?
White Salmon and the 98672 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 White Salmon?
Radon mitigation in White Salmon 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 White Salmon?
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