Groveland, CA Radon Levels

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

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

Q: What EPA Radon Zone is Groveland in?

Groveland is in Tuolumne County, EPA Zone 2.

Q: How much does radon mitigation cost in Groveland?

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

Check local Groveland radon levels and find certified testing and mitigation professionals to keep your home safe

Groveland, CA Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Tuolumne County, CA

Zip Code 95321

Avg. User Level 7.00 pCi/L

User Tests 1

Nestled in Tuolumne County near Yosemite's gateway, Groveland has recorded an average radon level of 7.0 pCi/L from initial testing. This reading exceeds the EPA action level of 4.0 pCi/L, which aligns with the area's EPA Zone 2 classification and Sierra Nevada foothills geology featuring granite bedrock and decomposed granite soils. Residents in zip code 95321 should conduct comprehensive radon testing and consider mitigation systems if levels remain elevated.

7.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Groveland, CA Radon Mitigation

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Groveland, CA Radon Levels

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

Radon Level	City	Home Age	Foundation
7 pCi/L	Groveland, CA	21-50 Years	Partial Basement

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Radon FAQ for Groveland, CA

What is the average radon level in Groveland, CA?

Based on 1 user-submitted test, the average radon level in Groveland 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 Groveland in?

Groveland and the 95321 zip code are in Tuolumne 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 Groveland?

Radon mitigation in Groveland 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 Groveland?

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 in California with the most user-submitted radon test data, ranked by number of submissions.

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
Bishop	6.25 pCi/L	4
Oakland	5.00 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
Sacramento	4.33 pCi/L	3

Groveland, CA Radon Levels

Check local Groveland radon levels and find certified testing and mitigation professionals to keep your home safe

Groveland, CA Radon Facts

Groveland, CA Radon Mitigation

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Groveland, CA Radon Levels

Radon FAQ for Groveland, CA

Most Active Radon Markets in California

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