These are the Devol , Eda , Ruella , and Waynoka series. Devol and Eda soils are found on higher areas, are less clayey, lack carbonates within 36 inches, and lack a mollic epipedon. Ruella soils are found on slightly higher areas, lack an argillic horizon and a mollic epipedon. Waynoka soils are found on similar areas but lack carbonates within 30 inches and have a lithologic discontinuity within the profile. Carman soils are moderately well drained.
Permeability is moderate to moderately slow.
Runoff is negligible to very low. A perched water table ranges in depth from 40 to 60 inches from January through June. Much of this water comes as seepage from surrounding higher areas. Carman soils are used mainly for cropland, but a few areas are used as native range or tame pasture. Native vegetation is tall and mid grasses.