Canton and Narragansett soils lack stratified layers and have coarse fragments that are dominantly angular. Haven soils are silt loam, very fine sandy loam, or loam throughout the Bw horizon. Newfields soils are moderately well drained. Agawam soils are level to steep soils on outwash plains and high stream terraces. Most areas are on slopes that are less than 15 percent.
Steeper slopes are on terrace escarpments and steep sides of gullies in dissected outwash plains.
The soils formed in sandy water deposited material derived principally from schist, granite, gneiss, and phyllite. The mean growing season ranges from 120 to 200 days. These are the Enfield , Hadley , Hartland , Hinckley , Merrimac , Ninigret , Ondawa , Walpole , and Windsor soils. The excessively drained Hinckley and Windsor, somewhat excessively drained Merrimac, and well drained Enfield and Hartland soils are on associated outwash terraces and glacial lake plains. Well drained Hadley and Ondawa soils on nearby flood plains.