North Fork, CA Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 7.00 pCi/L.

Q: What EPA Radon Zone is North Fork in?

North Fork is in Madera County, EPA Zone 2.

Q: How much does radon mitigation cost in North Fork?

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

Avg: 7.00 pCi/L

Madera County

EPA Zone 2

1 user test

North Fork is located in Madera County, California. With 1 user-submitted readings averaging 7.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 93643 zip code.

7.00

pCi/L average

Above EPA Action Level

Based on 1 user-submitted radon test for homes in North Fork, CA. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

North Fork, CA Radon Mitigation

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

North Fork, CA Radon Testing

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

North Fork, California Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
7 pCi/L	North Fork, CA	21-50 Years	No Basement/All Crawl Space	Nov 2019

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

North Fork Radon Facts

Key details about the radon risk profile for North Fork and the 93643 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Madera County, CA

Zip Code

93643

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

7.00 pCi/L

User Tests Submitted

North Fork and the 93643 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 North Fork, CA

What is the average radon level in North Fork, CA?

Based on 1 user-submitted test, the average radon level in North Fork is 7.00 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 North Fork in?

North Fork and the 93643 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 North Fork?

Radon mitigation in North Fork 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 North Fork?

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