Gifford, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Gifford in?

Gifford is in Stevens County, EPA Zone 1.

Q: How much does radon mitigation cost in Gifford?

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

Stevens County

EPA Zone 1

Rural Gifford in Stevens County within the Spokane Metro area sits over eastern Washington's granite and metamorphic bedrock, which can contribute to elevated radon levels in certain locations. Testing data for the 99131 zip code area is currently limited, though the EPA Zone 1 classification indicates high radon potential throughout the region. Homeowners should prioritize testing, as Washington's mountainous geology often produces readings that warrant careful monitoring.

Gifford, WA Radon Mitigation

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

Gifford, WA Radon Testing

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

Gifford Radon Facts

Key details about the radon risk profile for Gifford and the 99131 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Stevens County, WA

Zip Code

99131

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Gifford and the 99131 zip code are located in Stevens County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Gifford, WA

What EPA Radon Zone is Gifford in?

Gifford and the 99131 zip code are in Stevens County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

How much does radon mitigation cost in Gifford?

Radon mitigation in Gifford 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 Gifford?

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