§ 107-1-2. Soil Classes.

Soil Class designations I, II, III, and IV are based on the severity of problems associated with these soils and the potential difficulty of analyzing and correcting those problems. Class I soils are undisturbed natural soils that typically have few characteristics that would adversely affect building foundations. Class II soils are undisturbed natural soils that typically have high groundwater or restrictive soil layers. Class III soils are undisturbed natural soils with characteristics such as high shrink/swell potential, compressibility, low bearing strength, and high water table, which may result in poor drainage, building settlement, and unstable slopes, etc. Class IV soils are soils that have been disturbed or altered as a result of grading or construction resulting in soils with variable characteristics. Class IV soils are divided into two groups, IVA and IVB. Class IVA soils are disturbed soils that were originally Class III soils, and Class IVB soils are disturbed soils that were originally Class I or Class II soils. (14-11-107.)