Touchet, WA Radon Mitigation and Testing

Q: What EPA Radon Zone is Touchet in?

Touchet is in Walla Walla County, EPA Zone 2.

Q: How much does radon mitigation cost in Touchet?

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

Walla Walla County

EPA Zone 2

Touchet in Walla Walla County (99360) currently lacks comprehensive radon testing data for detailed assessment. Located in the fertile Walla Walla Valley, this agricultural community sits on Columbia River basalt formations and loess soils that typically produce lower radon levels than granite-based geology. Farm homes and rural residences should still consider professional testing, particularly structures with basements or crawl spaces where radon can accumulate regardless of generally favorable geological conditions.

Touchet, WA Radon Mitigation

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

Touchet, WA Radon Testing

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

Touchet Radon Facts

Key details about the radon risk profile for Touchet and the 99360 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Walla Walla County, WA

Zip Code

99360

Predicted Screening Level

2–4 pCi/L (Zone 2)

Touchet and the 99360 zip code are located in Walla Walla 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 Touchet, WA

What EPA Radon Zone is Touchet in?

Touchet and the 99360 zip code are in Walla Walla 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 Touchet?

Radon mitigation in Touchet 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 Touchet?

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