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Foresthill, CA Radon Levels

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


Foresthill, CA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Placer County, CA
Zip Code 95631
Avg. User Level 5.50 pCi/L
User Tests 2

Foresthill in Placer County sits in the Sierra Nevada foothills east of Sacramento, where granite bedrock and gold-bearing quartz veins can influence local radon levels. Testing data from the 95631 zip code shows an average radon level of 5.5 pCi/L, exceeding the EPA action threshold and warranting mitigation consideration for area homes. The community's elevation and geological setting require homeowners to test regardless of California's generally lower radon reputation.

5.50
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Foresthill, CA Radon Mitigation

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Foresthill, CA Radon Levels

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

Radon LevelCityHome AgeFoundation
6 pCi/L Foresthill, CA 21-50 Years No Basement/All Slab
5 pCi/L Foresthill, CA 21-50 Years No Basement/All Slab

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

Radon FAQ for Foresthill, CA

What is the average radon level in Foresthill, CA?
Based on 2 user-submitted tests, the average radon level in Foresthill is 5.50 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 Foresthill in?
Foresthill and the 95631 zip code are in Placer 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 Foresthill?
Radon mitigation in Foresthill 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 Foresthill?
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