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The Clean Water Act prohibits the discharge of dredged or fill material into fed reg'd waters without first obtaining a Army Corps of Eng. permit. Before 2001, the Corps asserted jurisdiction over most waters, if migratory birds could use them. However, in Jan. 2001, the Supreme Court concluded that the Corps exceeded its authority in asserting jurisdiction over such waters based solely on their use by birds. This report examines the extent to which the Corps: processes data it uses for making jurisdictional determinations; documents decisions that it does not have jurisdiction; is using its remaining authority to assert jurisdiction over isolated, intrastate, nonnavigable waters; & EPA are collecting data to assess the impact of the court's 2001 ruling.
Understand the current concept of wetland and methods for identifying, describing, classifying, and delineating wetlands in the United States with Wetland Indicators - capturing the current state of science's role in wetland recognition and mapping. Environmental scientists and others involved with wetland regulations can strengthen their knowledge about wetlands, and the use of various indicators, to support their decisions on difficult wetland determinations. Professor Tiner primarily focuses on plants, soils, and other signs of wetland hydrology in the soil, or on the surface of wetlands in his discussion of Wetland Indicators. Practicing - and aspiring - wetland delineators alike will appreciate Wetland Indicators' critical insight into the development and significance of hydrophytic vegetation, hydric soils, and other factors. Features Color images throughout illustrate wetland indicators. Incorporates analysis and coverage of the latest Army Corps of Engineers delineation manual. Provides over 60 tables, including extensive tables of U.S. wetland plant communities and examples for determining hydrophytic vegetation.