C150094 Application ‎(2)‎

• Contract/PO #: C150094
• Contractor Name: La Plata Water Conservancy District
• Contract Type: Grant
• County: La Plata
• Loan Projects - Doc Type: Application

basin,particularly if the enlargement is constructed as part of a plan that also includes
Long Hollow Dam and Reservoir. Before the Long Hollow Reservoir is constructed,
enlargement of the Red Mesa Reservoir could help to improve La Plata River Compact
administration.
The objective and scope of the study are based on:
• Colorado Water Conservation Board(CWCB) guidelines for a feasibility-level
planning study,
• a site visit on May 30, 2001 in the presence of Mr. Pat Greer, President,Red
Mesa Ward Reservoir and Ditch Company;
• a review of readily available geology publications for the Reservoir area and two
United States Bureau of Reclamation("USBR") dam site investigations near the
site, and
• WWE's experience on similar projects and knowledge of the La Plata River
Basin.
The scope of the study at the proposed dam and reservoir will include:
• Conducting a review of available information.
• Collecting data necessary to allow analysis of site topography.
• Analyzing hydrologic data to determine feasibility of maintaining needed water in
storage.
• Review alternatives in the context of institutional issues.
o Determine NEPA requirements for the project.
o Determining the potential for Threatened& Endangered Species issues to
impact the feasibility of the project.
o Evaluating the potential for wetland issues to impact the feasibility of the
project.
o Determining the extent of potential impacts to cultural resources.
o Determine effect of the project on Indian Trust Assets.
Study Plan—Feasibility Analysis
Each work task is described below. Cost estimates for each task are presented in Table 2.
Review Existing Data
A review will be conducted of available geologic, geotechnical and civil engineering
information to obtain an understanding of the site geology and subsurface conditions and
the construction quality control of the existing dam and reservoir at the site. Readily
available information from the U.S. Geological Survey(USGS), the owner, the USBR the
Colorado State Engineer's Office, and the SCS will be evaluated. The subsequent tasks
3