The poorly drained Ashkum soils are on adjacent low-lying areas but have mollic epipedons less than 24 inches in thickness. Very poorly drained. Where drained, an apparent seasonal high water table is at a depth of 0.5 foot above the surface to 1.0 foot below the surface at some time between January and June in most years. In undrained conditions, an apparent seasonal high water table is at a depth of 1.0 foot above the surface to 0.5 foot below the surface at some time between October and September in most years. The potential for surface runoff is negligible.
Permeability is moderately slow.
Most drained areas are used for growing cultivated crops. Corn and soybeans are the principal crops. Most undrained areas are idle or are used for pasture. Native vegetation is marsh grasses and sedges. The differentiae needed to clearly separate the Peotone series from the Shiloh series is not well defined in terms of soil properties.