Pub. L. 93-251, tit. I, sec. 86

Sec. 86. (a) The Secretary of the Army, acting through the Chief of Engineers, is authorized to assist the National Park Service in the National Park Service’s program to plan for. design, and implement restoration of the. historical and ecological values of Dyke Marsh on the Potomac River. Such assistance may include, but need not be 88 Stat. 38limited to, furnishing suitable fill material obtained from the Potomac River or its tributaries, its placement, upon request, and engineering and technical services. (b) The Secretary of the Army, acting through the Chief of Engineers, is authorized and directed to make an investigation and study of the siltation and sedimentation problems of the Potomac River basin with particular emphasis on these problems as they exist in the Washington metropolitan area of the basin. This study is to be made in consultation with the Departments of Interior and Agriculture, the Environmental Protection Agency, and other interested Federal, State, and local entities and is to include, but need not be limited to, a description of the extent of such problems together with the Chief of Engineers’ recommendations on feasible and environmentally sound methods of removing polluted river bed materials to enhance water quality, recreation use, fish and wildlife, navigation, and the esthetics of the basin, as well as his recommendations on alternative methods and sites for the proper disposal of such materials. The Secretary of the Army shall transmit this study and the Chief of Engineers’ recommendations to the Congress no later than three years from the date of enactment of this Act.