The Raynham series consists of very deep, poorly or somewhat poorly drained soils that formed in silty estaurine or glaciolacustrine deposits on glacial lake plains and terraces.
Permeability is moderate or moderately slow in the solum and moderate to slow in the substratum.
Slope ranges from 0 to 12 percent. Raynham silt loam, on a gently sloping area in a hayfield. The thickness of the solum ranges from 16 to 40 inches. Rock fragments range from 0 to 2 percent. Reaction ranges from strongly acid to neutral in the solum and from moderately acid to slightly alkaline in the substratum.