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Bishop, CA Radon Levels

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


Bishop, CA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Inyo County, CA
Zip Code 93514
Avg. User Level 6.30 pCi/L
User Tests 4

Mountain-surrounded Bishop in Inyo County shows radon levels averaging 5.67 pCi/L, exceeding EPA action guidelines in this Eastern Sierra community. The town's position within an active geological zone, where granite and volcanic formations meet, contributes to natural radon production. Local homes in zip code 93514, often featuring concrete slab foundations due to the region's seismic activity, can still accumulate radon gas requiring professional testing and mitigation.

6.30
pCi/L average
Above EPA Action Level

Based on 4 user-submitted radon tests for homes in Bishop, CA. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Bishop, CA Radon Mitigation

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

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Bishop, CA Radon Levels

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

Radon LevelCityHome AgeFoundation
8 pCi/L Bishop, CA 0-20 Years No Basement/All Crawl Space
7 pCi/L Bishop, CA 51-99 Years Full Basement
5 pCi/L Bishop, CA 51-99 Years No Basement/All Crawl Space

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

Radon FAQ for Bishop, CA

What is the average radon level in Bishop, CA?
Based on 4 user-submitted tests, the average radon level in Bishop is 6.30 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 Bishop in?
Bishop and the 93514 zip code are in Inyo 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 Bishop?
Radon mitigation in Bishop 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 Bishop?
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