Pm_Pamlico muckPm-Pamlico muck.
This level or nearly level, very poorly drained soil is in broad, flat bay areas on uplands and along flood
plains. Most of the acreage is forested. The rest is used for residential and recreation sites. The native
vegetation consists of pond pine, bay trees cypress, gum, red maple, American cyrilla, greenbrier and
gallberry.
Typically, the surface layer is very dark brown muck 3 inches thick. The underlying layer, to a depth of 60
inches, is very dark brown and black muck in the upper part and very dark grayish brown and gray sand
in the lower part.
Included with this soil in mapping are small areas of Dorovan, Johnston, Murville, and Torhunta soils.
The organic-matter content of the surface layer is very high. Permeability is moderate, available water
capacity is very high, and shrink-swell potential is low. The seasonal high water table is at or near the
surface. This soil is frequently flooded for very long periods.
Wetness is the main limitation in the use and management of this soil. If the soil is drained, and if it is
excessively dry, the burning of organic material and subsidence are limitations in the use and
management of this soil. Unless this soil is drained, it is unsuited to use as residential and recreational
sites. If this soil is drained and tilled, the organic matter decomposes. and the soil subsides. Capability
subclasses Vllw, where undrained, and IVw, where drained; woodland group 4w.