| dc.description.abstract |
Population projections for the City of Raleigh, NC indicate a shortfall in long-term
raw water supply requirements given current service area demands. Raleigh is proposing
the development of a new reservoir to meet midterm needs; however, the reservoir is
a costly project with relatively short-term returns and is an environmentally sub-optimal
solution. This report proposes four unique adaptive management options to Raleigh’s
existing reservoir, Falls Lake, as alternatives to a new reservoir: Permanent flood
control pool reallocation, dynamic reservoir management, permanent sedimentation pool
reallocation and guide curve flexibility. Considering system risk, costs, ability
to generate additional water supply and environmental impacts, we recommend the combination
of sedimentation pool reallocation and a flexible guide curve be explored to increase
the city’s water supply allocation from Falls Lake. Current static management of water
supply sources is ill equipped to adapt to dynamic climatic conditions and human development
which may lead to increased risk and vulnerability for the communities that rely on
similar reservoirs for municipal water supply and flood control
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