Farmington, WA Radon Levels
Check local Farmington radon levels and find certified testing and mitigation professionals to keep your home safe
Farmington, WA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Whitman County, WA
Zip Code
99128
Situated in Whitman County within the rolling Palouse hills of southeastern Washington, this agricultural community sits on deep loess soils over basalt bedrock. Radon testing data for zip code 99128 is currently limited, making individual home testing important for residents to assess their baseline radon levels.
Farmington, 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 Farmington, WA
What EPA Radon Zone is Farmington in?
Farmington and the 99128 zip code are in Whitman 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 Farmington?
Radon mitigation in Farmington 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 Farmington?
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.