Long Barn, CA Radon Levels
Check local Long Barn radon levels and find certified testing and mitigation professionals to keep your home safe
Long Barn, CA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Tuolumne County, CA
Zip Code
95335
Positioned in Tuolumne County in the Sierra Nevada foothills, Long Barn sits in mountainous terrain where granite bedrock can contribute to moderate radon levels through natural uranium content. The area's housing consists primarily of mountain cabins and rural homes, many built on pier or crawl space foundations. Since testing data for zip code 95335 is currently limited, residents should consider radon testing to determine their specific exposure risk in this elevated terrain.
Long Barn, 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 Long Barn?
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Radon FAQ for Long Barn, CA
What EPA Radon Zone is Long Barn in?
Long Barn and the 95335 zip code are in Tuolumne 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 Long Barn?
Radon mitigation in Long Barn 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 Long Barn?
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 |