The Dunellen series consists of very deep, well drained soils formed in stratified materials. Dunellen soils are on outwash plains and stream terraces. Slopes range from 0 to 35 percent.
Permeability is moderate in the solum and moderately rapid in the substratum.
Mean annual temperature is about 53 degrees F., and mean annual precipitation is about 44 inches. Dunellen sandy loam-cultivated. Solum thickness ranges from 25 to 40 inches. Depth to bedrock is typically greater than 10 feet. Rock fragments range from 0 to 15 percent in the upper part of the solum and from 0 to 30 percent in the lower solum.