These are the Bremer , Crossplain , Edinburg , Haig , Mazaska , Minnetonka , Taintor , Virden , Winterset , and Worthing series. The Bremer, Edinburg, Haig, Taintor, and Winterset soils do not have free calcium carbonate within depths of 60 inches. In addition, the Haig and Taintor soils have mollic epipedons less than 24 inches thick. Crossplain soils contain more than 15 percent fine sand or coarser. Mazaska soils are more acid, have mollic epipedons less than 24 inches thick, and have 2 to 8 percent coarse fragments composed primarily of shale.
Minnetonka soils have thinner mollic epipedons and have a wetter soil moisture control section.
Virden soils have thinner mollic epipedons. Worthing soils are more poorly drained and have chroma of 1 or less throughout the solum. Chancellor soils are in nearly level swales and depressed upland drains. Slopes are plane or concave with slope gradients of 1 percent or less. The soils formed in local silty alluvium.