Arol, Burlewash, Falba, and Rehburg soils have argillic horizons, and do not have large slickensides. Arol and Falba soils are on lower wetter positions. Burlewash and Rehburg soils are on similar upland positions. Shalba soils are on slightly higher convex positions. Shalba soils do not have vertic properties.
Permeability is very slow.
However, water enters the soil rapidly when it is dry and cracked. Runoff is medium on 1 to 3 percent slopes, high on 3 to 5 percent slopes, and very high on slopes greater than 5 percent. Used mainly for improved bermudagrass pasture. A few areas are used for cropland. Native vegetation consists of mid and tall prairie grasses.