Topaz, CA Radon Levels
Check local Topaz radon levels and find certified testing and mitigation professionals to keep your home safe
Topaz, CA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Mono County, CA
Zip Code
96133
Situated in Mono County within California's eastern Sierra region, Topaz sits on volcanic and metamorphic formations that can facilitate radon accumulation in residential spaces. With limited testing data available for this remote 96133 zip code community, professional radon testing provides essential information for residents. The area's high-altitude desert setting and scattered rural housing create unique radon conditions that require individual assessment.
Topaz, 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 Topaz?
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Radon FAQ for Topaz, CA
What EPA Radon Zone is Topaz in?
Topaz and the 96133 zip code are in Mono 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 Topaz?
Radon mitigation in Topaz 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 Topaz?
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 |