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The Corps of Engineers portion of the High Plai~s Study will be reported through the Secretary of Army to the Secretary of Commerce. The water transfer studies have been conducted under the gui dance of the Hi gh PI ai ns Study Counci I and have bee~ closely coordi nated with the General Contractor. Fi gure 1. shows the ove ra 11 study organi zat ion. Addi t i ona lly , the Genera I Cont ractor has fur~ished technical inputs including previous estimates of future depletions upstream of source points, suggestions as to the range of base flow releases past certain points to meet downstream needs based on flow hydrographs furnished by the Corps of Engineers, suggestions to the range of pumping capacities for diversion at the source points, water needs at terminal points, monthly distri- bution of irrigation water needs, and projected energy costs for water transfer systems. Results of the water transfer study were furnished to the General Contractor for assessment of the interbasin transfer element of the High Plains study. STUDY SCOPE The level of analysis for the interstate water transfer element of the High Plains Study is comparable to Level A, "Assessment and Framework Studies," in Federal water and related land planning programs. Detailed analyses adequate for specifi c project authori zat i on are beyond the scope of thi s study. In genera I, Level A ana lys is is intended to (1) inventory the extent of the water resources and related land problems and the needs and desires of the people; (2) to indicate general approaches that appear appropriate to thei r solution, and (3) to identify specific geographic areas with complex problems where more detailed investigation and analyses are needed. The scope of this study in- cluded water resource considerations as related to the High Plains region. More specifically it was limited to problems associated with the decline of 10