The somewhat poorly drained Ipava and Muscatune soils are commonly on narrow interstream divides, near the edges of broad divides, or on slightly higher or more sloping positions. The moderately well drained Osco soils and well drained Tama soils are on narrow or rounded crests and more sloping parts of the landscape. Where drained, the depth to an apparent seasonal high water table is 0.5 foot above the surface to 1.0 foot below the surface at some time between January and May in most years. In the few remaining undisturbed areas, the depth to an apparent seasonal high water table is 0.5 foot above the surface to 0.5 foot below the surface at some time between November and June of most years. The potential for surface runoff is negligible.
Permeability is moderate.
Most areas are used to grow corn and soybeans. Some areas are used to grow small grain and meadow crops. Native vegetation is marsh grasses and sedges. These soils are in Illinois, Wisconsin, Iowa, and Indiana. Livingston County, Illinois, 1938.