Newman Lake, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Newman Lake in?

Newman Lake is in Spokane County, EPA Zone 1.

Q: How much does radon mitigation cost in Newman Lake?

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

Spokane County

EPA Zone 1

Positioned in eastern Spokane County near Idaho, Newman Lake sits on glacial lake deposits and volcanic soils characteristic of the Columbia Plateau region. Testing data for zip code 99025 is currently limited, though the area's complex geology can create variable radon conditions. Homeowners should prioritize testing given the region's potential for radon accumulation in certain geological settings.

Newman Lake, WA Radon Mitigation

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

Newman Lake, WA Radon Testing

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

Newman Lake Radon Facts

Key details about the radon risk profile for Newman Lake and the 99025 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Spokane County, WA

Zip Code

99025

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Newman Lake and the 99025 zip code are located in Spokane 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 Newman Lake, WA

What EPA Radon Zone is Newman Lake in?

Newman Lake and the 99025 zip code are in Spokane 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 Newman Lake?

Radon mitigation in Newman Lake 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 Newman Lake?

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