Reservoir Design in Georgia's Piedmont
Author(s)
Franz, Dieter
Advisor(s)
Editor(s)
Hatcher, Kathryn J.
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Abstract
Reservoirs for water supply in Georgia must be
designed to allow a water supply manager to meet demands
during a design drought without reducing streamflow when flows are less than the Non-Depletable Flow (NDF), normally
the 7Q10 flow. The design drought is typically either a 50 or 100 year drought or a specific drought such as the 1954-55
or 1986-88 drought This requirement is based on the
Georgia Water Quality Control Act (O.C.G.A. Par. 12-5-31,
et seq.) and related Water Quality Control regulations 319-3-
6-.07.
This paper compares reservoir storage to meet these
requirements as calculated by two methods: a probability
based design using monthly streamflow data, as compared to
daily time series computations using streamflows from a
specific drought period. The stream gage with a long history
of observation used is the Oostanaula gage near Resaca,
Georgia. This gage has a 100 year history, beginning in
January of 1893.
This particular comparison showed that the reservoir
storage volume calculated by analysis of daily data from the
1954-57 drought was larger that the storage calculated using
monthly streamflow data for a 100 year drought.
Sponsor
Sponsored and Organized by: U.S. Geological Survey, Georgia Department of Natural Resources, The University of Georgia, Georgia State University, Georgia Institute of Technology
Date
1995-04
Extent
Resource Type
Text
Resource Subtype
Proceedings