The regolith consists of 18 to 36 inches of water-sorted loamy material low in gravel over stratified gravel and sand. Mean annual air temperature ranges from 48 degrees to 55 degrees F., mean annual precipitation from 40 to 44 inches and mean growing season from 180 to 220 days. The competing Bridgehampton and Riverhead soils and Carver and Plymouth soils are associated in the landscape. Carver and Plymouth soils are sandy. Runoff is medium.
Permeability is moderate in the solum and very rapid in the substratum.
Most of the soil has been cleared and is used for crops or is in suburban development. Principal crops are potatoes, cauliflower, cabbage and corn. Common forest trees in woodlots include black, white and red oaks, beech and maple. The soil is of moderate extent.