Covina, CA Radon Levels
Check local Covina radon levels and find certified testing and mitigation professionals to keep your home safe
Covina, CA Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Los Angeles County, CA
Zip Code
91722
Part of Los Angeles County in the San Gabriel Valley, Covina's location on alluvial soils typically results in lower radon potential compared to other regions. Testing data for zip codes 91722, 91723, and 91724 remains limited, though California's generally moderate radon risk applies to this area. Homeowners should still consider testing, especially in homes with basements or those built on varying soil conditions throughout the city.
Covina, 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 Covina?
- 100% Free, No-Obligation Quotes
- Matches You with State-Licensed Los Angeles County Pros
1-800-299-3578
Toll-free · Mon–Fri 8am–6pm ET
Radon FAQ for Covina, CA
What EPA Radon Zone is Covina in?
Covina and the 91722 zip code are in Los Angeles 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 Covina?
Radon mitigation in Covina 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 Covina?
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 |