The Cg horizon, where present, has hue of 5Y, 2.5Y, or 10YR, value of 5 through 8, and chroma of 1 or 2 or the horizon is neutral with value of 5 through 8. It ranges from sand to clay loam and commonly is stratified with sand, loamy sand, sandy clay loam, or clay. These are the Gourdin and Myatt series of the same family and the Augusta , Coxville , Dunbar , Grady , Lumbee , Lynchburg , Pooler , Rains , Roanoke , Wahee , Worsham , and Yemassee series of closely related families. Augusta soils have mixed mineralogy. Coxville, Dunbar, Grady, Pooler, Roanoke, Wahee, and Worsham soils have more than 35 percent clay in the control section.
Gourdin soils have slow permeability.
Myatt soils have more than 20 percent silt in the control section. Lynchburg and Rains soils lack a 20 percent clay decrease within 60 inches of the surface. Lumbee soils have sola 40 inches thick or less. Yemassee soils have higher chroma between the base of the A or Ap horizons and a depth of 30 inches. Ogeechee soils are on nearly level flats, drainageways, and slight depressions on the Lower Coastal Plain.