1001.3.1.9 (10.3.1.9) Soil-Gas Control. In known areas, per the Idaho Department of Health and Welfare, where elevated soil-gas may be present, the building shall be tested, postconstruction, for radon in accordance with ANSI/AARST MALB. The indoor radon concentration shall be below 4.0 pCi/L. Where radon testing indicates that the indoor radon concentration is 4.0 pCi/L or greater, radon mitigation shall be conducted in accordance with ANSI/AARST RMS-LB, and the building shall be retested to verify that the radon concentration is below 4.0 pCi/L.
(Ord. 9-23, 3-7-2023)