Deer Park, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Deer Park in?

Deer Park is in Spokane County, EPA Zone 1.

Q: How much does radon mitigation cost in Deer Park?

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

Deer Park, WA resides 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. Testing is recommended for all homes in the 99006 zip code area.

Deer Park, WA Radon Mitigation

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

Deer Park, WA Radon Testing

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

Deer Park Radon Facts

Key details about the radon risk profile for Deer Park and the 99006 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Spokane County, WA

Zip Code

99006

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Deer Park and the 99006 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 Deer Park, WA

What EPA Radon Zone is Deer Park in?

Deer Park and the 99006 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 Deer Park?

Radon mitigation in Deer Park 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 Deer Park?

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