Fort Mill, SC Radon Levels

Q: What is the average radon level in Fort Mill, SC?

Based on 3 user-submitted tests, the average radon level is 6.70 pCi/L.

Q: What EPA Radon Zone is Fort Mill in?

Fort Mill is in Lancaster County, EPA Zone 3.

Q: How much does radon mitigation cost in Fort Mill?

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

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

Fort Mill, SC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Lancaster County, SC

Zip Code 29707

Avg. User Level 6.70 pCi/L

User Tests 3

Spanning Lancaster and York Counties in the Charlotte Metro area, Fort Mill has recorded an average radon level of 6.0 pCi/L, which exceeds the EPA action level of 4.0 pCi/L. The community sits atop Piedmont bedrock where granite and gneiss formations can produce elevated radon readings in zip codes 29707, 29708, and 29715. The area's rapid suburban growth includes many homes with basements and crawl spaces that can concentrate radon gas from the underlying crystalline bedrock.

6.70

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Fort Mill, SC. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Fort Mill, SC Radon Mitigation

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Fort Mill, SC Radon Levels

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

Radon Level	City	Home Age	Foundation
6 pCi/L	Fort Mill, SC	0-20 Years	Full Basement

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Radon FAQ for Fort Mill, SC

What is the average radon level in Fort Mill, SC?

Based on 3 user-submitted tests, the average radon level in Fort Mill is 6.70 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 Fort Mill in?

Fort Mill and the 29707 zip code are in Lancaster County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Fort Mill?

Radon mitigation in Fort Mill 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 Fort Mill?

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 South Carolina

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

City	Avg User Radon Level	Submissions
Fort Mill	6.00 pCi/L	1
Greenville	5.00 pCi/L	1

Fort Mill, SC Radon Levels

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

Fort Mill, SC Radon Facts

Fort Mill, SC Radon Mitigation

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Fort Mill, SC Radon Levels

Radon FAQ for Fort Mill, SC

Most Active Radon Markets in South Carolina

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