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Feasibility Report and Environmental Statement for Water Resources Development, Cache Creek Basin, California

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This is a detailed report of the impacts on fish and wildlife resources associated with the proposed construction of flood control improvements at Clear Lake and sediment control improvements at Cache Creek Settling Basin, Lake and Yolo Counties, California. The feasibility report of the Corps of Engineers is being prepared in response to a resolution by the Committee on Flood Control of the House of Representatives, dated May 26, 1946, and a resolution by the Committee on Public Works of the House of Representatives, dated June 19, 1963. The Fish and Wildlife Service has been consulted throughout the planning process and has had input into selection of the recommended alternatives considered in this document. The findings of this report are based on available data, field investigations, and surveys conducted according to the methods set forth in the Fish and Wildlife Service 5 Habitat Evaluation Procedures. These procedures provide a means to calculate an index of existing and future conditions. Characteristics of the community are appraised with respect to their value in providing the necessary habitat requirements for selected species. The habitat carrying capacity is displayed as Habitat Unit Values, an index of quality and quantity of the habitat being evaluated. The basic objective of these procedures is to quantify in nonmonetary terms the impacts of the plan and to provide a basis for determining the preservation, compensation and enhancement measures which are needed to maintain and improve the integrity of the ecosystem. The analysis for the sediment control part of the project at Cache Creek Settling Basin is based on a project life of 50 years and that for the flood control part, Clear Lake and Cache Creek, on 100 years. Both analysis periods begin in 1985.

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  • Hydrology, Limnology and Potamology
  • Water Pollution and Control

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