Arlington, WA Radon Levels
Check local Arlington radon levels and find certified testing and mitigation professionals to keep your home safe
Arlington, WA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Snohomish County, WA
Zip Code
98223
Located in Snohomish County north of Seattle, Arlington sits in the Puget Sound lowlands with alluvial soils over glacial deposits. While comprehensive radon testing data for this Pacific Northwest community is still developing, residents should test their homes due to the variable geological conditions in the region.
Arlington, 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 Arlington, WA
What EPA Radon Zone is Arlington in?
Arlington and the 98223 zip code are in Snohomish County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Arlington?
Radon mitigation in Arlington 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 Arlington?
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.