Rochester, WA Radon Levels
Check local Rochester radon levels and find certified testing and mitigation professionals to keep your home safe
Rochester, WA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Thurston County, WA
Zip Code
98579
Rochester in Thurston County lies within the Olympia Metro area, positioned on glacial outwash deposits typical of western Washington's Puget Sound region. The 98579 area features a mix of housing types from various eras, with many properties built on crawl space or slab foundations due to the region's mild climate and geological conditions. Testing data for this community remains limited, making individual homeowner testing important to assess actual radon exposure levels.
Rochester, WA Radon Mitigation
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Radon FAQ for Rochester, WA
What EPA Radon Zone is Rochester in?
Rochester and the 98579 zip code are in Thurston 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 Rochester?
Radon mitigation in Rochester 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 Rochester?
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.