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• U.S. Bureau of Land Management (BLM) <br />• U.S. Bureau of Reclamation (Reclamation) <br />• U.S. Geological Survey (USGS) <br />• U.S. Department of Agricultural/Natural Resources Conservation Service (NRCS) <br />• U.S. Fish and Wildlife Service (USFWS) <br />• Colorado Department of Natural Resources (DNR) <br />• Colorado Division of Wildlife (DOW) <br />Information was acquired from these agencies and entities by one or more of the following methods: <br />website download, acquisition of published materials, and telephone/email contacts. This study was <br />based on readily available information from these sources and a site reconnaissance of the conveyance <br />alignments and dam sites. No geotechnical explorations were performed for this study; geologic and <br />geotechnical characterizations are based on the information obtained from the sources above. Reservoir <br />yield analyses were based on the types of uses identified in the Clay Report. These uses including <br />municipal, industrial, agricultural, and non-consumptive power generation and environmental (fish <br />flows) uses were defined in the Clay Report such that essentially all water delivered to storage is <br />subsequently released for a beneficial use without periodic reservoir spills that are not credited in the <br />yield analysis. <br />This report is comprised of six sections following this Introduction. The first two sections summarize <br />the physical facilities needed to: l) convey water from a Gunnison River diversion to Grand Valley Lake <br />and 2) the dam and reservoir. The next three sections cover potential reservoir purposes, operations and <br />estimates of yield; environmental and other factors affecting the feasibility of the proposed project; and <br />preliminary opinions of probable costs. The final section presents preliminary conclusions on project <br />feasibility and recommendations. <br />, <br />� AECOM <br />11 <br />2/22/10 <br /> I ' <br />