Prescott, WA Radon Levels
Check local Prescott radon levels and find certified testing and mitigation professionals to keep your home safe
Prescott, WA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Walla Walla County, WA
Zip Code
99348
This small Walla Walla County community in southeastern Washington sits on Columbia River basalt formations that typically produce lower radon levels than granite-rich regions. Although specific testing data for zip code 99348 is limited, homeowners should still test since individual properties can exceed regional averages.
Prescott, WA Radon Mitigation
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Radon FAQ for Prescott, WA
What EPA Radon Zone is Prescott in?
Prescott and the 99348 zip code are in Walla Walla 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 Prescott?
Radon mitigation in Prescott 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 Prescott?
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.