Cardigan, Ditney, Lordstown, Steinsburg, and Yalesville soils have hard sedimentary or metasedimentary bedrock at depths less than 40 inches and contain fragments of those rocks. Charlton soils are very deep and formed in glacial till derived mainly from schist, gneiss, or granite. Chestnut soils have paralithic contact within depths of 20 to 40 inches but lack hard bedrock within these depths. Delaware soils are very deep and formed in postglacial alluvium, mainly from areas of sandstone, shale, and siltstone. Dutchess and St. Albans soils are very deep and contain coarse fragments of sedimentary rocks such as sandstone and shale.
Edneyville soils are very deep.
Gallimore soils are very deep and formed in loamy over sandy outwash on outwash plains. Newport soils are very deep and have C horizons of dense glacial till. Riverhead have a lithologic discontinuity in the upper 40 inches. Soco and Stecoah soils formed from materials weathered from low-grade metasedimentary rocks and contain fragments of those rocks. Wakeman soils formed in residuum over sandstone bedrock on till plains and lake plains and contain fragments of sandstone.