Greenwood, CA Radon Mitigation and Testing

Q: What EPA Radon Zone is Greenwood in?

Greenwood is in El Dorado County, EPA Zone 2.

Q: How much does radon mitigation cost in Greenwood?

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

El Dorado County

EPA Zone 2

Nestled in El Dorado County in the Sierra Nevada foothills, Greenwood (95635) rests on granite and metamorphic bedrock that can produce elevated radon levels in some areas. While comprehensive radon testing data is not currently available for this rural Sacramento metro community, the geological conditions typical of the Gold Country region suggest the need for professional assessment. Homes with basements or lower levels may be particularly susceptible to radon accumulation.

Greenwood, CA Radon Mitigation

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

Greenwood, CA Radon Testing

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

Greenwood Radon Facts

Key details about the radon risk profile for Greenwood and the 95635 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

El Dorado County, CA

Zip Code

95635

Predicted Screening Level

2–4 pCi/L (Zone 2)

Greenwood and the 95635 zip code are located in El Dorado 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 Greenwood, CA

What EPA Radon Zone is Greenwood in?

Greenwood and the 95635 zip code are in El Dorado 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 Greenwood?

Radon mitigation in Greenwood 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 Greenwood?

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