Keene, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Keene in?

Keene is in Kern County, EPA Zone 2.

Q: How much does radon mitigation cost in Keene?

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

Kern County

EPA Zone 2

Located in Kern County within the Bakersfield Metro area, Keene sits in the Tehachapi Mountains where granitic bedrock and mountain soils typically produce lower radon levels. Testing data for zip code 93531 remains limited, though California's diverse geology can create localized variations. Homeowners in this mountain community should consider baseline radon testing given the state's variable geological conditions.

Keene, CA Radon Mitigation

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

Keene, CA Radon Testing

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

Keene Radon Facts

Key details about the radon risk profile for Keene and the 93531 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Kern County, CA

Zip Code

93531

Predicted Screening Level

2–4 pCi/L (Zone 2)

Keene and the 93531 zip code are located in Kern 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 Keene, CA

What EPA Radon Zone is Keene in?

Keene and the 93531 zip code are in Kern 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 Keene?

Radon mitigation in Keene 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 Keene?

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