文档介绍：A Unofficial Reproduction of the
WETLANDS RESEARCH PROGRAM’s
Technical Report Y-87-1
CORPS OF ENGINEERS WETLANDS
DELINEATION MANUAL
by
Environmental Laboratory
DEPARTMENT OF THE ARMY
Waterways Experiment Station, Corps of Engineers
PO Box 631, Vicksburg, Mississippi 39180-0631
January 1987
Final Report
Approved for Public Release; Distribution Unlimited
Prepared for DEPARTMENT OF THE ARMY
US Army Corps of Engineers
Washington, DC 20314-1000
Reproduced by Environmental Technical pany, Austin, Texas as a courtesy.
This reproduction will not be formatted as the original and errors will occur in this
reproduction. Some items are missing due to our inability to reproduce them adequately.
Date: February 25, 1997
Wetland Delination Manual, 1987 2
ABSTRACT
This document presents approaches and methods for identifying and delineating wetlands for
purposes of Section 404 of the Clean Water Act. It is designed to assist users in making
wetland determinations using a multiparameter approach. Except where noted in the manual,
this approach requires positive evidence of hydrophytic vegetation, hydric soils, and wetland
hydrology for a determination that an area is a wetland. The multiparameter approach provides
a logical, easily defensible, and technical basis for wetland determinations. Technical
guidelines are presented for wetlands, deepwater aquatic habitats, and nonwetlands (uplands).
Hydrophytic vegetation, hydric soils, and wetland hydrology are also characterized, and
wetland indicators of each parameter are listed.
Methods for applying the multiparameter approach are described. Separate sections are
devoted to preliminary data gathering and analysis, method selection, routine determinations,
comprehensive determinations, atypical situations, and problem areas. Three levels of routine
determinations are described, thereby affording significant flexibility in method selection.
Four appendices provide supporting information