Slopes are 1 percent or less. The soils formed in sandy and loamy stratified outwash material of mixed origin. Mean annual precipitation ranges from 40 to 45 inches, mean annual air temperature ranges from 52 to 57 degrees F., frost free period ranges from 170 to 210 days and elevation ranges from 360 to 600 feet above mean sea level. These are the Alvin , Ayrshire , Bloomfield, Bobtown, and Princeton soils. The well drained Alvin soils are on higher lying areas on nearly level to steep slopes.
Ayrshire soils are nearly level, somewhat poorly drained, and have an argillic horizon.
Bloomfield soils have a banded argillic horizon, are well drained, and are on higher lying areas. Bobtown soils are moderately well drained and are on higher lying areas. Princeton soils are well drained soils on nearly level to moderately steep slopes. Very poorly drained. The potential for surface water runoff is very low or negligible.