Greenville, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Greenville in?

Greenville is in Plumas County, EPA Zone 2.

Q: How much does radon mitigation cost in Greenville?

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

Plumas County

EPA Zone 2

Nestled in the Sierra Nevada foothills of Plumas County, Greenville sits amid granite bedrock and volcanic soils that typically produce lower radon levels. The community's mix of older mountain homes and newer construction in zip code 95947 currently lacks comprehensive radon testing data. Given California's variable geology, homeowners should conduct independent radon testing to establish baseline readings for their properties.

Greenville, CA Radon Mitigation

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

Greenville, CA Radon Testing

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

Greenville Radon Facts

Key details about the radon risk profile for Greenville and the 95947 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Plumas County, CA

Zip Code

95947

Predicted Screening Level

2–4 pCi/L (Zone 2)

Greenville and the 95947 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 Greenville, CA

What EPA Radon Zone is Greenville in?

Greenville and the 95947 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 Greenville?

Radon mitigation in Greenville 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 Greenville?

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