These are the Broadkill , Hooksan , Matunuck , Pawcatuck , Transquaking , and Westbrook soils. Hooksan soils are excessively drained and are located at higher elevations on the dunes. Broadkill, Matunuck, Pawcatuck, Transquaking, and Westbrook soils occur at lower elevations adjacent to or within back bay tidal marshes and are flooded daily by tidal action. Moderately well drained. Runoff is very slow to slow.
Permeability is very rapid to rapid.
A seasonal high water table ranging from 20 to 40 inches is present throughout the year. This water table may be tidally influenced. Few areas are cleared and used for recreational purposes such as campsites. Most areas are in a natural vegetated condition for wildlife. Native vegetation includes sea rocket, seaside goldenrod, bayberry, salt myrtle, and shore juniper.