Colton, WA Radon Levels

Q: What is the average radon level in Colton, WA?

Based on 1 user-submitted tests, the average radon level is 6.00 pCi/L.

Q: What EPA Radon Zone is Colton in?

Colton is in Whitman County, EPA Zone 2.

Q: How much does radon mitigation cost in Colton?

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

Check local Colton radon levels and find certified testing and mitigation professionals to keep your home safe

Colton, WA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Whitman County, WA

Zip Code 99113

Avg. User Level 6.00 pCi/L

User Tests 1

Positioned in the rolling Palouse hills of Whitman County, Colton sits on deep loess deposits over Columbia River basalt, creating moderate radon potential. Testing data shows an average reading of 6.0 pCi/L, which exceeds the EPA action level and reflects the area's geological complexity. The 99113 zip code's agricultural setting includes scattered residential properties where basements and crawl spaces can accumulate radon gas from underlying formations.

6.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in Colton, WA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Colton, WA Radon Mitigation

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Colton, WA Radon Levels

User-submitted radon test readings from homes in the Colton area.

Radon Level	City	Home Age	Foundation
6 pCi/L	Colton, WA	21-50 Years	Full Basement

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Radon FAQ for Colton, WA

What is the average radon level in Colton, WA?

Based on 1 user-submitted test, the average radon level in Colton is 6.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Colton in?

Colton and the 99113 zip code are in Whitman 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 Colton?

Radon mitigation in Colton 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 Colton?

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 in Washington with the most user-submitted radon test data, ranked by number of submissions.

City	Avg User Radon Level	Submissions
Vancouver	6.56 pCi/L	9
Kent	3.50 pCi/L	6
Olympia	7.00 pCi/L	5
Seattle	5.25 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

Colton, WA Radon Levels

Check local Colton radon levels and find certified testing and mitigation professionals to keep your home safe

Colton, WA Radon Facts

Colton, WA Radon Mitigation

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Colton, WA Radon Levels

Radon FAQ for Colton, WA

Most Active Radon Markets in Washington

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