Ferndale, CA Radon Levels
Check local Ferndale radon levels and find certified testing and mitigation professionals to keep your home safe
Ferndale, CA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Humboldt County, CA
Zip Code
95536
Nestled in Humboldt County among the coastal redwood forests, Ferndale's Victorian village setting rests on alluvial soils near the Eel River. The community's well-preserved 19th-century architecture includes many historic homes with raised foundations and crawl spaces characteristic of California's earthquake-prone regions. Since radon testing data is currently unavailable for ZIP code 95536, residents should consider testing their homes to understand local radon conditions.
Ferndale, 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 Ferndale?
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Radon FAQ for Ferndale, CA
What EPA Radon Zone is Ferndale in?
Ferndale and the 95536 zip code are in Humboldt County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.
How much does radon mitigation cost in Ferndale?
Radon mitigation in Ferndale 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 Ferndale?
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 |