Palisades, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Palisades in?

Palisades is in Douglas County, EPA Zone 2.

Q: How much does radon mitigation cost in Palisades?

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

Douglas County

EPA Zone 2

Palisades sits along the Columbia River in Douglas County in central Washington, classified as EPA Zone 2 with moderate radon potential. Testing data for zip code 98845 is currently limited, encouraging local residents to pursue independent radon testing. The area's basalt flows and river terrace deposits can create variable radon conditions, particularly in homes built near the river bluffs where geological transitions occur.

Palisades, WA Radon Mitigation

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

Palisades, WA Radon Testing

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

Palisades Radon Facts

Key details about the radon risk profile for Palisades and the 98845 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Douglas County, WA

Zip Code

98845

Predicted Screening Level

2–4 pCi/L (Zone 2)

Palisades and the 98845 zip code are located in Douglas 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 Palisades, WA

What EPA Radon Zone is Palisades in?

Palisades and the 98845 zip code are in Douglas 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 Palisades?

Radon mitigation in Palisades 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 Palisades?

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