The Lehigh series consists of deep, moderately well and somewhat poorly drained soils formed in residuum from metamorphosed sandstone and shale. Slopes range from 0 to 25 percent.
Permeability is slow.
Mean annual precipitation is 44 inches. Solum thickness ranges from 20 to 40 inches. Bedrock is at 40 to 60 inches. The upper 20 inches of the B horizon averages less than 35 percent rock fragments in the particle-size control section. Diabase stones occur in the upper part of the solum in some areas.