The frost-free season is 140 to 200 days. These are the Ephrata , Quincy , and Winchester soils. Quincy and Winchester soils are sandy throughout. Native range and irrigated cropland. Native vegetation is needleandthread, Indian ricegrass, Sandberg bluegrass, antelope bitterbrush, and big sagebrush.
Series is of moderate extent.
Benton County, Washington, 1971. Diagnostic horizons and features recognized in this pedon are an ochric epipedon from 0 to 5 inches, a zone of carbonate removal from 5 to 16 inches, and a zone of carbonate and silica accumulation from 16 to 35 inches.