In addition, the Barbour, Occum, Pootatuck, and Tioga soils are coarse-loamy. Bermudian and Chagrin soils have more than 18 percent clay. Hartland and Unadilla soils have a regular decrease in organic matter content with depth. Suncook soils are in a sandy family. Winooski soils have distinct or prominent redoximorphic depletions within 20 inches.
Hadley soils are nearly level soils on flood plains and high bottoms.
Slope gradients are mainly less than 3 percent. The soils formed in alluvial deposits consisting primarily of very fine sand and silt. Flooding by stream overflow ranges from once a year to once in 5 to 10 or more years. Flooding generally occurs during the early spring runoff or occasionally during periods of high rainfall in the fall. Floodwater seldom covers these soils for periods of more than 2 or 3 days on the high bottoms, but the duration is up to 7 days in the lower positions.