Biltmore, Dabney, Oakville, Penwood, Perks, Plainfield, Suncook, Tyner, Westport, and Windsor soils are more acid and lack free carbonates. Caesar and Spessard soils have a B horizon and have sola more than 15 inches thick. Chute soils lack stratification within the control section. Pinegrove soil contain coarse fragments of sandstone and shale throughout the series control section. Sarpy soils have a mean annual precipitation of more than 26 inches.
Sardak soils are on nearly level to rolling flood plains.
The soils formed in sandy alluvium. Slopes are 1 to 9 percent. Albaton and Wabash soils are clayey and occupy nearly level parts of the flood plain. These soils are more gently sloping, less undulating positions of the flood plain. Grable and Percival soils are finer textured in the upper part, and Onawa soils are finer textured throughout.