Yampa - Morrison Creek Reservoir Feasibility Study_Application

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Water Supply Reserve Account – Grant Application Form UYWCD Application Form Revised October 2006 _______________________________________ t 5. Please provide a copy of the proposed scope of work. Please refer to Part 2 of the criteria and guidance document for detailed requirements. Attach additional sheets as needed. Proposed Scope of Work Geotechnical Evaluations Preliminary geotechnical investigations will be performed for Morrison Creek Dam. A qualified Geotechnical Engineer will log all drill holes and test pits. The boring locations will generally follow the alignment of the centerline of the proposed embankment. Test pit locations will be selected at specific potential borrow locations within the inundation area as selected in the field by an experienced Geotechnical Engineer. The District will obtain all required permission for access onto properties before any work is commenced. Estimated Cost, $20,500. Stream Gaging and Water Balance Studies In order to provide a foundation for the firm yield analysis, the District will model physical yield from the areas tributary to the proposed Reservoir using a variety of hydrologic analysis techniques. Initially, the District will characterize the study watersheds using Geographic Information System (GIS) software. Identify discharge data available for local streams that is collected by the United States Geological Survey (USGS), the Colorado Division of Water Resources (DWR), and the United States Bureau of Reclamation (BOR). The available streamflow data will be adjusted for watershed area and watershed elevation in order to estimate yield from the study basin. The results of this analysis will be refined and validated by performing a watershed yield analysis with the Subalpine Water Balance Model. The Model identifies inputs to a watershed (i.e. precipitation), subtracts losses (i.e. evapotranspiration and infiltration), and assumes the remainder is output (i.e. streamflow). The basin yield model will reflect physical water availability at the proposed Reservoir site. Estimated Cost, $6,500 Water Quality Sampling and Lab Analysis . Basic Water Quality analys including as full suite of State drinking water parameters general chemistry, metals, herbicides/pesticides, biological and radiological parameters. Complete a particle size analysis and flocculation study to determine TSS loads and treatment potential of stored water. Estimated Cost, $9,500 Initial Environmental Studies Wetland Mapping and mitigation concepts, consultation with regulatory agencies, COE, USFWS, USFS, CDPHE, Routt County, etc. Estimated Cost, $13,000 Total requested $49,500 6