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Grenada, CA Radon Levels

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


Grenada, CA Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Siskiyou County, CA
Zip Code 96038

Located in Siskiyou County within California's far northern region, Grenada sits on volcanic soils and bedrock formations. Testing data for zip code 96038 remains limited, though California's volcanic regions can sometimes exhibit elevated radon potential. The community's rural setting and varied housing types warrant individual testing to understand specific radon risk levels.

Grenada, 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 Grenada, CA

What EPA Radon Zone is Grenada in?
Grenada and the 96038 zip code are in Siskiyou County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Grenada?
Radon mitigation in Grenada 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 Grenada?
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