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Show PART I INTRODUCTION The Upper Colorado Region is one of four Pacific Southwest regions assigned to the Pacific Southwest Interagency Committee by the United States Water Resources Council for comprehensive framework study. To coordinate the study in the Upper Colorado Region, the Upper Colorado River Commission was designated as the chairman agency of a State-Federal Interagency Group representing five states and many Federal agencies. Guidelines for the Framework studies state: "The basic objective in the formulation of framework plans is to provide a broad guide to the best use, or combination of uses, of water and related land resources of a region to meet foreseeable short- and long-term needs." The studies are reconnaissance in nature and rely largely on existing data and the seasoned judgment of competent planners. Supporting a "Main Report" are sixteen appendices. These are the results of work group assignments. This appendix "Water Resources," in addition to discussing water resources and presenting basic data, is a synopsis of present and estimated future water supply requirements including data drawn from other assigned appendices devoted to specific uses of water and related resources. Purpose and Scope The aim of this appendix is to present in narrative, graphic, and tabular form basic water resource data, analyses, and summaries thereof in preparing companion appendices leading to formulation of plans and programs of the "Main Report." Because of the reconnaissance nature of the "Main Report," little effort was devoted to new study and research. Therefore, existing studies, inventories, and publications were heavily relied upon in assembling material for this appendix. Particular use was made of recent United States Geological Survey (USGS) Professional Papers - "Water Resources of the Upper Colorado River," No. 441 and No. 442, with some updating to year 1965 to incorporate new material subsequent to 1957, the closing period of the two USGS reports. Likewise, other federal reports and studies by state organizations in connection with their state water plans were utilized. In identifying present water uses, a base year of 1965 has been used. All uses initiated after 1965, even though authorized prior to 1965, will be accounted for in subsequent check point years. |