Soil Map Unit Description from the RI Soil Survey Report
This unit consists of areas used for trash disposal. The areas are throughout
the State, and most are on outwash terraces. Many of the dumps are adjacent to
streams. Most range from 3 to 40 acres.
Dumps are commonly called landfills or sanitary landfills. They consist mostly
of trash from residential and commercial areas. The trash is largely composed of
paper, cans, plastic, and bottles and is covered daily with soil material. The
older parts of some dumps were commonly burned but not covered with soil
material. A few dumps include industrial waste, tree stumps, car bodies,
concrete, and debris from demolished buildings.
Included with this unit in mapping are areas, generally less than 1 acre in
size, of excessively drained Hinckley soils; somewhat excessively drained
Merrimac soils; well drained Canton, Charlton and Narragansett soils; and
Udorthents. Also included are a few small dumps that have bedrock outcrops and a
few dumps along the larger streams that are subject to flooding.
Dumps require onsite investigation and evaluation for land use decisions. A few
dumps have been used for industrial sites. One of the major factors affecting
use is the liquid that percolates through the material in the dumps. Capability
subclass and woodland group not as signed.