Mammoth Lakes, CA Radon Levels
Check local Mammoth Lakes radon levels and find certified testing and mitigation professionals to keep your home safe
Mammoth Lakes, CA Radon Facts
This high-elevation resort community in Mono County shows an average radon level of 10.8 pCi/L, significantly exceeding the EPA action level of 4.0 pCi/L based on 5 local tests. Located in EPA Zone 2 at zip code 93546, Mammoth Lakes' elevated readings likely reflect the area's unique volcanic geology and mountain environment. Homeowners should prioritize professional radon testing and mitigation, as the current data suggests a substantial radon risk across the community.
Based on 5 user-submitted radon tests for homes in Mammoth Lakes, CA. The EPA recommends taking action at or above 4.0 pCi/L.
Mammoth Lakes, CA Radon Mitigation
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Mammoth Lakes, CA Radon Levels
User-submitted radon test readings from homes in the Mammoth Lakes area.
| Radon Level | City | Home Age | Foundation |
|---|---|---|---|
| 8 pCi/L | Mammoth Lakes, CA | 21-50 Years | No Basement/All Crawl Space |
| 10 pCi/L | Mammoth Lakes, CA | 21-50 Years | No Basement/All Crawl Space |
| 11 pCi/L | Mammoth Lakes, CA | 51-99 Years | — |
| 9 pCi/L | Mammoth Lakes, CA | 0-20 Years | No Basement/All Slab |
| 16 pCi/L | Mammoth Lakes, CA | 0-20 Years | No Basement/All Crawl Space |
Have a radon test result for Mammoth Lakes? Submit your reading to help other homeowners.
Radon FAQ for Mammoth Lakes, CA
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Most Active Radon Markets in California
Cities in California with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| 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 |