Lodi, CA Radon Mitigation and Testing

Q: What is the average radon level in Lodi, CA?

Based on 2 user-submitted tests, the average radon level is 6.50 pCi/L.

Q: What EPA Radon Zone is Lodi in?

Lodi is in San Joaquin County, EPA Zone 3.

Q: How much does radon mitigation cost in Lodi?

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

Avg: 6.50 pCi/L

San Joaquin County

EPA Zone 3

2 user tests

Positioned in San Joaquin County within the Stockton Metro area, Lodi has recorded an average radon level of 6.5 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. Based on testing data from zip codes 95240 and 95242, these readings indicate that radon mitigation may be necessary for area homes. The Central Valley's alluvial soils and underlying geology contribute to these elevated radon concentrations.

6.50

pCi/L average

Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Lodi, CA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Lodi, CA Radon Mitigation

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

Lodi, CA Radon Testing

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

Lodi, California Radon Levels

User-submitted radon test readings from homes in the Lodi area.

Radon Level	City	Home Age	Foundation	Submitted
8 pCi/L	Lodi, CA	21-50 Years	Full Basement	Aug 2021
5 pCi/L	Lodi, CA	21-50 Years	Full Basement	Jul 2021

Have a radon test result for Lodi? Submit your reading to help other homeowners.

Lodi Radon Facts

Key details about the radon risk profile for Lodi and the 95240 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

San Joaquin County, CA

Zip Code

95240

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Avg. User Submitted Level

6.50 pCi/L

User Tests Submitted

Lodi and the 95240 zip code are located in San Joaquin County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Lodi, CA

What is the average radon level in Lodi, CA?

Based on 2 user-submitted tests, the average radon level in Lodi is 6.50 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.

What EPA Radon Zone is Lodi in?

Lodi and the 95240 zip code are in San Joaquin County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Lodi?

Radon mitigation in Lodi 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 Lodi?

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