7424

• UCREFRP Catalog Number: 7424
• Author: National Research Council
• Title: Editor
• USFW Year: Series
• USFW - Doc Type: 1987
• Copyright Material: YES

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great deal of relevant information for management
was obtained from these results. The recreation
reports provided a new dimension to planning for
dam operations and an opportunity for further
exploration and testing of the contingency
valuation study.
Future work by the Department of the Interior
should seek to
• clarify the costs, benefits, and tradeoffs
between power generation and recreation
opportunities
• broaden the definition of constituencies to
include not only those who enjoy the Grand Canyon's
recreational opportunities; but all those who care
about the future of the resource
• avoid reliance on the use of hypothetical
flows as the basis for predicting user behavior
Operations
The material presented in the operations section
of the final July 1987 draft GCES report is a major
improvement over earlier drafts seen by the
committee. This type of information would have
been useful in the planning phases of the GCES.
However, much of the material presented in the
operations section of the final July draft GCES
report is more relevant to revenue, customers, and
the operation of the entire Western Area Power
Administration (WAPA) service area than it is to
the operation of the dam itself. The hydropower
capacity of Glen Canyon Dam is about 78 percent of
the total Colorado River Storage Project (CRSP)
capacity, but CRSP is but a small percentage of
WAPA. The operations section would have been more
useful to the analysis of Glen Canyon Dam
operations if it had focused on Lake Powell (or at
least on CRSP) to develop economic information
useful to decisions on changes in dam operations.
Furthermore, a comparison of lost revenues from