Chowchilla, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Chowchilla in?

Chowchilla is in Madera County, EPA Zone 2.

Q: How much does radon mitigation cost in Chowchilla?

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

Madera County

EPA Zone 2

Situated in Madera County within California's Central Valley, Chowchilla is built on alluvial soils that generally produce lower radon levels compared to the state's mountainous regions. The community's housing stock includes both agricultural-related residences and suburban developments, with many homes featuring slab-on-grade foundations typical of California's valley construction. While radon testing data for zip code 93610 is currently limited, homeowners should still test since radon concentrations can vary locally even in lower-risk geological areas.

Chowchilla, CA Radon Mitigation

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

Chowchilla, CA Radon Testing

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

Chowchilla Radon Facts

Key details about the radon risk profile for Chowchilla and the 93610 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Madera County, CA

Zip Code

93610

Predicted Screening Level

2–4 pCi/L (Zone 2)

Chowchilla and the 93610 zip code are located in Madera 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 Chowchilla, CA

What EPA Radon Zone is Chowchilla in?

Chowchilla and the 93610 zip code are in Madera 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 Chowchilla?

Radon mitigation in Chowchilla 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 Chowchilla?

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