Cass soils are on flood plains. Els soils have lighter colored surface horizons and are on similar landscapes. Loup soils have a seasonal high water table at the surface to a depth of 1.5 feet, are in a sandy family, and are on lower landscapes. Somewhat poorly drained. Runoff is low or moderately low.
Permeability is moderate in the subsoil and moderately rapid in the substratum.
The water table fluctuates from 1 to 3 feet below the surface in the spring when the water table is at the seasonal high and drops below a depth of 4 feet in late summer. In spring the water table is perched above the finer textured material in the substratum. Big and little bluestem, switchgrass, indiangrass, sedges, and small amounts of prairie cordgrass are the principal native grasses. Corn and alfalfa are the principal crops on the cultivated areas. The series is of moderate extent.