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Sequoia National Park, CA Radon Levels

Check local Sequoia National Park radon levels and find certified testing and mitigation professionals to keep your home safe


Sequoia National Park, CA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Tulare County, CA
Zip Code 93262

Located within Tulare County in California's Sierra Nevada mountains, Sequoia National Park sits on granite bedrock that can contain uranium-bearing minerals capable of producing elevated radon levels. Limited residential structures within the park boundaries consist mainly of employee housing and historic buildings, typically featuring minimal foundation systems adapted to the mountain environment. Testing data is not available for zip code 93262, making radon testing important for the few year-round residents given the area's granitic geology and potential for uranium-bearing formations.

Sequoia National Park, CA Radon Mitigation

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

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Radon FAQ for Sequoia National Park, CA

What EPA Radon Zone is Sequoia National Park in?
Sequoia National Park and the 93262 zip code are in Tulare 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 Sequoia National Park?
Radon mitigation in Sequoia National 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 Sequoia National 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 California

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

CityAvg User Radon LevelSubmissions
Los Angeles 7.83 pCi/L 6
Mammoth Lakes 10.80 pCi/L 5
San Jose 4.20 pCi/L 5
Rancho Palos Verdes 8.00 pCi/L 4
Bishop 6.25 pCi/L 4
Oakland 5.00 pCi/L 4
Woodland Hills 7.67 pCi/L 3
South Lake Tahoe 6.33 pCi/L 3
Palos Verdes Peninsula 6.00 pCi/L 3
Sacramento 4.33 pCi/L 3