Oakesdale, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Oakesdale in?

Oakesdale is in Whitman County, EPA Zone 2.

Q: How much does radon mitigation cost in Oakesdale?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Whitman County

EPA Zone 2

Situated in southeastern Washington's Whitman County in the heart of the Palouse wheat country, Oakesdale (99158) has limited radon testing data available. The region's wind-deposited loess soils over basalt bedrock typically create moderate radon potential, though individual homes can vary significantly. Residents of this small farming community should test their properties, especially older homes with basement foundations common to the area's harsh winter climate requirements.

Oakesdale, WA Radon Mitigation

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

Oakesdale, WA Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Oakesdale Radon Facts

Key details about the radon risk profile for Oakesdale and the 99158 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Whitman County, WA

Zip Code

99158

Predicted Screening Level

2–4 pCi/L (Zone 2)

Oakesdale and the 99158 zip code are located in Whitman County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Oakesdale, WA

What EPA Radon Zone is Oakesdale in?

Oakesdale and the 99158 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 Oakesdale?

Radon mitigation in Oakesdale 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 Oakesdale?

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 with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Vancouver	6.56 pCi/L	9
Kent	3.60 pCi/L	5
Seattle	5.25 pCi/L	4
Olympia	5.00 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
Washougal	8.00 pCi/L	1
Ridgefield	5.00 pCi/L	1
Moses Lake	No submissions	0