Mendota, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Mendota in?

Mendota is in Fresno County, EPA Zone 2.

Q: How much does radon mitigation cost in Mendota?

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

Fresno County

EPA Zone 2

Situated in Fresno County within the Fresno metro area, Mendota lies in EPA Zone 2 in the heart of the San Joaquin Valley. The area's deep alluvial soils and agricultural setting typically produce moderate radon levels, though testing data for this community remains limited. Homeowners in zip code 93640 should consider radon testing, especially given the mix of older and newer construction styles throughout the area.

Mendota, CA Radon Mitigation

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

Mendota, CA Radon Testing

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

Mendota Radon Facts

Key details about the radon risk profile for Mendota and the 93640 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Fresno County, CA

Zip Code

93640

Predicted Screening Level

2–4 pCi/L (Zone 2)

Mendota and the 93640 zip code are located in Fresno 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 Mendota, CA

What EPA Radon Zone is Mendota in?

Mendota and the 93640 zip code are in Fresno 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 Mendota?

Radon mitigation in Mendota 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 Mendota?

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