Saint George, SC Radon Levels
Check local Saint George radon levels and find certified testing and mitigation professionals to keep your home safe
Saint George, SC Radon Facts
EPA Radon Zone
Zone 3 — Low Risk
< 2.0 pCi/L (Zone 3)
County
Dorchester County, SC
Zip Code
29477
Saint George in Dorchester County serves the Charleston metro area, where Coastal Plain sediments and sandy soils typically result in lower radon concentrations. Current testing data for zip code 29477 is unavailable, though South Carolina's coastal geology generally produces radon levels below EPA action thresholds. Residents should still consider testing, particularly in newer construction that may have enclosed crawl spaces or basement areas.
Saint George, 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 Saint George, SC
What EPA Radon Zone is Saint George in?
Saint George and the 29477 zip code are in Dorchester 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 Saint George?
Radon mitigation in Saint George 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 Saint George?
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 |