Orange, CA Radon Mitigation and Testing
Located in Orange County within the Los Angeles Metro area, Orange has recorded an average radon level of 5.0 pCi/L based on initial testing data from multiple zip codes including 92862, 92865, and others. This reading exceeds the EPA action level of 4.0 pCi/L, indicating that mitigation systems should be considered for affected properties. The area's diverse housing stock, ranging from mid-century ranch homes to newer developments, combined with underlying sedimentary geology, can create varying radon entry conditions across different neighborhoods.
Based on 1 user-submitted radon test for homes in Orange, CA. The EPA recommends taking action at or above 4.0 pCi/L.
Orange, CA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Orange, CA Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Orange, California Radon Levels
User-submitted radon test readings from homes in the Orange area.
| Radon Level | City | Home Age | Foundation | Submitted |
|---|---|---|---|---|
| 5 pCi/L | Orange, CA | 21-50 Years | No Basement/All Slab | Jan 2024 |
Have a radon test result for Orange? Submit your reading to help other homeowners.
Orange Radon Facts
Key details about the radon risk profile for Orange and the 92862 zip code area.
Orange and the 92862 zip code are located in Orange County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Orange, CA
What is the average radon level in Orange, CA?
What EPA Radon Zone is Orange in?
How much does radon mitigation cost in Orange?
Should I test for radon if I'm buying a home in Orange?
Most Active Radon Markets in California
Cities with the most user-submitted radon test data in the state.
| 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 |
| Woodland Hills | 7.67 pCi/L | 3 |
| South Lake Tahoe | 6.33 pCi/L | 3 |
| Palos Verdes Peninsula | 6.00 pCi/L | 3 |
| Bishop | 5.67 pCi/L | 3 |
| Sacramento | 4.33 pCi/L | 3 |
| Oakland | 3.33 pCi/L | 3 |
| Fresno | 10.00 pCi/L | 2 |
| Davis | 8.00 pCi/L | 2 |
| Palo Alto | 6.50 pCi/L | 2 |
| Studio City | 6.50 pCi/L | 2 |
| Menlo Park | 5.00 pCi/L | 2 |
| Truckee | 5.00 pCi/L | 2 |
| Walnut Creek | 4.00 pCi/L | 2 |
| San Diego | 3.50 pCi/L | 2 |
| San Francisco | 3.50 pCi/L | 2 |
| Belmont | 20.00 pCi/L | 1 |