Jasco soils are in depressions and have a fragipan. Kirbyville and Splendora soils are on slightly lower landscape positions, are wetter for longer periods, and have low chroma iron concentrations within 30 inches. In addition, Splendora soils have base saturation more than 35 percent. Waller soils have an aquic moisture regime and are on a lower landscape position. Otanya soils are well drained.
Permeability is moderately slow.
Runoff is very low on slopes from 1 to 3 percent and low on 3 to 5 percent slopes. Water is perched on top of the B horizon for a few days following heavy rains. These soils are used mainly for timber and pasture. Forest vegetation includes loblolly, shortleaf, slash and longleaf pines, sweetgum, red oak, and hickory trees. Pastures are mainly improved bermudagrass and bahiagrass.