Chester, CA Radon Mitigation and Testing

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

Based on 1 user-submitted tests, the average radon level is 8.00 pCi/L.

Q: What EPA Radon Zone is Chester in?

Chester is in Plumas County, EPA Zone 2.

Q: How much does radon mitigation cost in Chester?

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

Avg: 8.00 pCi/L

Plumas County

EPA Zone 2

1 user test

Mountain community Chester in Plumas County recorded an average radon level of 8.0 pCi/L, which exceeds the EPA's 4.0 pCi/L action threshold and warrants mitigation consideration. This high-elevation location in the Sierra Nevada, where volcanic and granitic formations predominate, can produce elevated radon levels in the enclosed spaces of mountain homes. The area's mix of seasonal cabins and year-round residences should undergo professional radon testing regardless of occupancy patterns.

8.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Chester, CA Radon Mitigation

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

Chester, CA Radon Testing

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

Chester, California Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
8 pCi/L	Chester, CA	21-50 Years	—	Aug 2024

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

Chester Radon Facts

Key details about the radon risk profile for Chester and the 96020 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Plumas County, CA

Zip Code

96020

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

8.00 pCi/L

User Tests Submitted

Chester and the 96020 zip code are located in Plumas 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 Chester, CA

What is the average radon level in Chester, CA?

Based on 1 user-submitted test, the average radon level in Chester is 8.00 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 Chester in?

Chester and the 96020 zip code are in Plumas 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 Chester?

Radon mitigation in Chester 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 Chester?

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