Eastsound, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Eastsound in?

Eastsound is in San Juan County, EPA Zone 3.

Q: How much does radon mitigation cost in Eastsound?

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

San Juan County

EPA Zone 3

Situated on Orcas Island in San Juan County, Eastsound rests on marine sedimentary rock formations surrounded by Puget Sound waters. The community's EPA Zone 3 classification reflects the Pacific Northwest's generally lower radon potential, though testing data for zip code 98245 remains scarce. Island residents should still test their homes, particularly those with basements or built into hillsides.

Eastsound, WA Radon Mitigation

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

Eastsound, WA Radon Testing

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

Eastsound Radon Facts

Key details about the radon risk profile for Eastsound and the 98245 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

San Juan County, WA

Zip Code

98245

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Eastsound and the 98245 zip code are located in San Juan County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Eastsound, WA

What EPA Radon Zone is Eastsound in?

Eastsound and the 98245 zip code are in San Juan 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 Eastsound?

Radon mitigation in Eastsound 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 Eastsound?

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