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West Columbia, SC Radon Levels

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


West Columbia, SC Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)
County Lexington County, SC
Zip Code 29169
Avg. User Level 7.00 pCi/L
User Tests 1

Situated across the Congaree River from Columbia in Lexington County (29169), West Columbia sits on Coastal Plain sediments that typically produce lower radon levels than Piedmont regions. However, local testing shows an average of 7.0 pCi/L, significantly exceeding EPA action thresholds. The community's mix of older homes and newer suburban development suggests that radon testing remains important despite the generally lower geological risk.

7.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

West Columbia, SC Radon Mitigation

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

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West Columbia, SC Radon Levels

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

Radon LevelCityHome AgeFoundation
7 pCi/L West Columbia, SC No Basement/All Slab

Have a radon test result for West Columbia? Submit your reading to help other homeowners.

Radon FAQ for West Columbia, SC

What is the average radon level in West Columbia, SC?
Based on 1 user-submitted test, the average radon level in West Columbia 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 West Columbia in?
West Columbia and the 29169 zip code are in Lexington 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 West Columbia?
Radon mitigation in West Columbia 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 West Columbia?
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.

CityAvg User Radon LevelSubmissions
Fort Mill 6.00 pCi/L 1
Greenville 5.00 pCi/L 1