White Salmon, WA Radon Mitigation and Testing

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

Based on 2 user-submitted tests, the average radon level is 5.00 pCi/L.

Q: What EPA Radon Zone is White Salmon in?

White Salmon is in Klickitat County, EPA Zone 2.

Q: How much does radon mitigation cost in White Salmon?

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

Avg: 5.00 pCi/L

Klickitat County

EPA Zone 2

2 user tests

Perched along the Columbia River Gorge in Klickitat County, White Salmon benefits from its connection to the Portland Metro area while sitting on volcanic basalt formations typical of the Columbia Plateau. Local housing ranges from early 1900s homes to modern construction, with many properties built on concrete foundations to accommodate the area's sloping terrain. Recent testing shows an average radon level of 4.0 pCi/L, exactly at the EPA action threshold, indicating that homeowners in the 98672 zip code should consider mitigation evaluation.

5.00

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in White Salmon, WA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

White Salmon, WA Radon Mitigation

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

White Salmon, WA Radon Testing

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

White Salmon, Washington Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	White Salmon, WA	0-20 Years	No Basement/All Slab	May 2021

Have a radon test result for White Salmon? Submit your reading to help other homeowners.

White Salmon Radon Facts

Key details about the radon risk profile for White Salmon and the 98672 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Klickitat County, WA

Zip Code

98672

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

5.00 pCi/L

User Tests Submitted

White Salmon and the 98672 zip code are located in Klickitat 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 White Salmon, WA

What is the average radon level in White Salmon, WA?

Based on 2 user-submitted tests, the average radon level in White Salmon is 5.00 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 White Salmon in?

White Salmon and the 98672 zip code are in Klickitat 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 White Salmon?

Radon mitigation in White Salmon 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 White Salmon?

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