Round O, SC Radon Levels
Check local Round O radon levels and find certified testing and mitigation professionals to keep your home safe
Round O, SC Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Colleton County, SC
Zip Code
29474
Located in rural Colleton County on South Carolina's coastal plain, Round O sits over sandy soils and marine sediments that typically produce minimal radon. Testing data for the 29474 zip code remains unavailable, though the area's geology generally favors low radon conditions. Residents should still conduct testing to establish baseline readings despite the favorable geological setting.
Round O, SC Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Round O, SC
What EPA Radon Zone is Round O in?
Round O and the 29474 zip code are in Colleton 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 Round O?
Radon mitigation in Round O 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 Round O?
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 |