Naches, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Naches in?

Naches is in Yakima County, EPA Zone 2.

Q: How much does radon mitigation cost in Naches?

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

Yakima County

EPA Zone 2

Nestled in Yakima County along the Naches River valley, this community sits within the Cascade Range foothills where volcanic geology and alluvial deposits create variable radon conditions. Housing stock across zip codes 98929 and 98937 reflects the area's agricultural heritage, with ranch-style homes and rural properties, many built with crawl space or basement foundations. Limited testing data makes individual radon testing important for residents, particularly those in homes with below-grade living spaces.

Naches, WA Radon Mitigation

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

Naches, WA Radon Testing

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

Naches Radon Facts

Key details about the radon risk profile for Naches and the 98929 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Yakima County, WA

Zip Code

98929

Predicted Screening Level

2–4 pCi/L (Zone 2)

Naches and the 98929 zip code are located in Yakima County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Naches, WA

What EPA Radon Zone is Naches in?

Naches and the 98929 zip code are in Yakima County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Naches?

Radon mitigation in Naches 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 Naches?

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