Santa Fe Springs, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Santa Fe Springs in?

Santa Fe Springs is in Los Angeles County, EPA Zone 2.

Q: How much does radon mitigation cost in Santa Fe Springs?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Los Angeles County

EPA Zone 2

Centrally located within Los Angeles County in zip code 90670, Santa Fe Springs sits on alluvial deposits and sedimentary formations typical of the Los Angeles Basin. While specific radon testing data for this area is currently limited, the region's generally flat terrain and marine sedimentary geology typically result in moderate radon potential. Homeowners should prioritize professional testing, particularly those living in older homes or properties with basement spaces, crawl areas, or other below-grade construction features.

Santa Fe Springs, CA Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

Santa Fe Springs, CA Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Santa Fe Springs Radon Facts

Key details about the radon risk profile for Santa Fe Springs and the 90670 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Los Angeles County, CA

Zip Code

90670

Predicted Screening Level

2–4 pCi/L (Zone 2)

Santa Fe Springs and the 90670 zip code are located in Los Angeles County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Santa Fe Springs, CA

What EPA Radon Zone is Santa Fe Springs in?

Santa Fe Springs and the 90670 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 Santa Fe Springs?

Radon mitigation in Santa Fe Springs 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 Santa Fe Springs?

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 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