EP 1110-2-9
31 Jul 94
contingency planning analysis is a separate study, but is
c. Water supply investigations. The main product
usually included as an appendix to a reservoir water con-
will be a reservoir storage reallocation to satisfy changed
trol manual. Supplemental investigation products could
demands, such as decreased hydropower storage for
include both seasonal and annual: current and modified
increased water supply storage, or to satisfy as many
condition discharge-frequency, reservoir storage-
critical demands as possible during time of drought.
frequency, pool elevation-duration, flow- or storage-
Water supply studies are usually performed for storage
duration relationships, and power generation values.
reallocations of existing reservoirs or for drought contin-
gency planning for existing Federal reservoirs. Drought
3-5
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