Somerset, CA Radon Levels
Check local Somerset radon levels and find certified testing and mitigation professionals to keep your home safe
Somerset, CA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
El Dorado County, CA
Zip Code
95684
Situated in El Dorado County within the Sacramento Metro foothills, Somerset occupies Sierra Nevada terrain where granite bedrock and decomposed granite soils create variable radon conditions. The 95684 community features rural residential properties and ranchettes, many built on crawl spaces or slab foundations typical of California's Gold Country. Testing data remains limited, making individual property assessments essential for residents in this geologically diverse area.
Somerset, CA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Need Radon Mitigation or Testing in Somerset?
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Radon FAQ for Somerset, CA
What EPA Radon Zone is Somerset in?
Somerset and the 95684 zip code are in El Dorado 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 Somerset?
Radon mitigation in Somerset 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 Somerset?
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.
| 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 |