Drummer soils have a mollic epipedon and lack an argillic horizon. Sexton soils average more than 35 percent clay in the argillic horizon. Somewhat poorly drained. The depth to an apparent seasonal high water table is 0.5 to 2.0 feet at some time between January and May in most years. The potential for surface runoff is low.
Permeability is moderate.
Permeability is rapid in the substratum of the sandy substratum phase. Some low-lying areas on terraces are flooded after unusually high rainfall. A rarely flooded phase is recognized. Corn, soybeans, and small grain are the principal crops. Native vegetation was deciduous forest.