Lake Arrowhead, CA Radon Levels
Check local Lake Arrowhead radon levels and find certified testing and mitigation professionals to keep your home safe
Lake Arrowhead, CA Radon Facts
EPA Radon Zone
Unknown
Unknown
County
San Bernardino County, CA
Zip Code
92352
Perched in the San Bernardino Mountains of San Bernardino County, Lake Arrowhead shows a 5.0 pCi/L average that exceeds EPA recommendations throughout the Riverside metro area. The community's elevation and granite bedrock formations contribute to radon production in zip code 92352's mountain homes. Given the area's many cabins and homes built into hillsides with potential basements or crawl spaces, residents should prioritize comprehensive radon testing and mitigation services.
Lake Arrowhead, 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 Lake Arrowhead?
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Radon FAQ for Lake Arrowhead, CA
What EPA Radon Zone is Lake Arrowhead in?
Lake Arrowhead and the 92352 zip code are in San Bernardino County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.
How much does radon mitigation cost in Lake Arrowhead?
Radon mitigation in Lake Arrowhead 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 Lake Arrowhead?
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 |