In addition, Zipp soils do not have a mollic epipedon. Montgomery and Zipp soils are on adjacent or somewhat lower parts of glacial lake plains and stream terraces. Poorly drained and very poorly drained. The potential for surface water runoff is negligible to low. Ponding typically occurs in the spring.
Permeability is moderate in the solum and typically is moderately slow in the substratum.
The sandy substratum phase and the bedrock substratum phase are moderately permeable above the substratum. Flooded phases are recognized with flooding frequency ranging from rare to frequent. Most areas are cropped. Corn and soybeans are the principal crops. Small grain and meadow are also grown.