The Waupecan series consists of very deep, well drained soils on outwash plains and stream terraces. They formed in loess or other silty material and in the underlying loamy outwash and are deep to sandy and gravelly deposits.
Permeability is moderate to moderately rapid in the solum and very rapid in the substratum.
Slope ranges from 0 to 5 percent. Waupecan silt loam - with a slope of less than one percent in a cultivated field at an elevation of about 880 feet. 42 degrees 06 minutes 34 seconds N., and long. 88 degrees 32 minutes 08 seconds W., NAD 27. The depth to the base of argillic horizon ranges from 40 to 72 inches.