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About Radon Levels in McCormick County

The average national indoor radon level is 1.3 pCi/L. (FAQ: What is a picocurie?)

The average indoor radon levels of McCormick County, as determined by radon test results from Air Chek, is 2.2 pCi/L

Local News

Radon Risk Chart for McCormick County


    Results under 2 pCi/L

    Results between 2 and 3.9 pCi/L

    Results 4 pCi/L and above


Check Your Own Radon Levels!


Additional information about radon levels in McCormick County may be available through this website.


State Radon Officer

Rochelle Tolton
(800) 768-0362
(803) 896-2333
SC DHEC
State Park SC, 29147