Patterson, CA Radon Levels
Check local Patterson radon levels and find certified testing and mitigation professionals to keep your home safe
Patterson, CA Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Stanislaus County, CA
Zip Code
95363
Situated in Stanislaus County within the Modesto Metro area, Patterson lies in California's Central Valley where alluvial soils typically produce lower radon concentrations. Testing data for the 95363 zip code area is currently limited, but the region's agricultural setting and valley floor geology generally result in minimal radon accumulation. However, professional testing remains recommended for baseline assessment, especially in homes with concrete slab foundations that may have settling cracks.
Patterson, 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 Patterson, CA
What EPA Radon Zone is Patterson in?
Patterson and the 95363 zip code are in Stanislaus 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 Patterson?
Radon mitigation in Patterson 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 Patterson?
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 |