Tollhouse, CA Radon Levels
Check local Tollhouse radon levels and find certified testing and mitigation professionals to keep your home safe
Tollhouse, CA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Fresno County, CA
Zip Code
93667
Located in the Sierra Nevada foothills within Fresno County, Tollhouse sits in EPA Zone 2 where granite bedrock and decomposed granite soils create moderate radon potential. This mountain community features a mix of cabin-style homes and contemporary residences, many built on concrete slabs or raised foundations suitable for the sloping terrain. With testing data for zip code 93667 currently unavailable, residents should test their homes since granite geology can produce variable radon levels.
Tollhouse, CA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Tollhouse, CA
What EPA Radon Zone is Tollhouse in?
Tollhouse and the 93667 zip code are in Fresno 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 Tollhouse?
Radon mitigation in Tollhouse 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 Tollhouse?
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 |