PROJ00406

• Contract/PO #: FS0004X
• Contractor Name: Green Mountain Exchange Project CWRDA
• Contract Type: Loan
• Water District: 0
• County: Grand
• Loan Projects - Doc Type: Feasibility Study

described in the Initial Screening Report, (Boyle, 1986). The screening resulted in selection of
the highway route for conveyance of water from Green Mountain Reservoir to Dillon Reservoir,
and selection of the following six reservoir sites for further study.

o Red Mountain Site on the Colorado River
o Wolford Mountain Site A' on Muddy Creek
o Wolford Mountain Site C on Muddy Creek
o Azure Site on the Colorado River
o Wolcott Site on Alkali Creek
o Una Site on the Colorado River

Phase 2 consisted of hydrologic, operational and water rights analyses using a hydrologic
simulation model. The results of Phase 2 investigation are summarized in the report, Preliminary
Hydrologic Analysis and included as Appendix A. Phase 2 analysis demonstrated that all six
reservoir sites could produce the necessary yield to meet the Joint-Use Reservoir requirements
(approximately 30,000 af), and that Wolcott Reservoir alone and several reservoir combinations
could be used to replace the existing function of Green Mountain Reservoir as part of the Green
Mountain Exchange Project.

Phase 3 is concluded with this Final Report which summarizes the complete Study. In
addition to the initial screening and hydrological aspects it presents the reconnaissance-level
designs and costs estimates of the six reserVoir sites and conveyance system. It is supported by
more detailed discussions in the following appendixes:

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o Appendix A - Hydrologic Analysis: hydrologic operational analysis and probable
maximum flood analysis.

o Appendix B - Preliminary Design of Reservoir and Conveyance System:
geotechnical analysis, design considerations and detailed cost estimates.

o Appendix C - Field Geotechnical Exploration of Red Mountain and Wolford
Mountain A': drilling logs, field observations and laboratory tests.

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