Blaine, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Blaine in?

Blaine is in Whatcom County, EPA Zone 3.

Q: How much does radon mitigation cost in Blaine?

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

Whatcom County

EPA Zone 3

Blaine sits in Whatcom County near the Canadian border within the Bellingham Metro area, where EPA Zone 3 classification indicates generally lower radon potential. The region's marine sediments and glacial deposits typically produce moderate radon levels, though individual properties can still vary. Since testing data is limited for the 98230 area, residents should test their homes to establish their specific radon exposure levels.

Blaine, WA Radon Mitigation

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

Blaine, WA Radon Testing

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

Blaine Radon Facts

Key details about the radon risk profile for Blaine and the 98230 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Whatcom County, WA

Zip Code

98230

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Blaine and the 98230 zip code are located in Whatcom 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 Blaine, WA

What EPA Radon Zone is Blaine in?

Blaine and the 98230 zip code are in Whatcom 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 Blaine?

Radon mitigation in Blaine 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 Blaine?

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