Dissolved Oxygen TMDL Development in Southern Georgia
Author(s)
Davie, Steven R.
Greenfield, James M.
Lahlou, Mohammed
Advisor(s)
Editor(s)
Hatcher, Kathryn J.
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Abstract
Dissolved Oxygen (DO) Total Maximum
Daily Loads (TMDLs) were developed for 99 impaired
stream segments in the southern Georgia 4 river basins
include the Ochlockonee, Suwannee, Satilla, and St.
Marys Rivers. The 4 river basins are characterized by
low topographic relief, shallow blackwater streams,
large organic loads from stream riparian areas, and
extensive, low-lying floodplains and swamps. The DO
concentrations typically fall well below Georgia's
water, quality standard during the summer periods when
precipitation and stream flow is at a minimum and
water temperatures are high. The natural, organic load
from detritus and leaf litter material in forest and
wetland areas is a significant contributor to the low DO
concentrations in most of the impaired segments. A
watershed model was linked to an in-stream model to
provide a framework for examining the sources of
oxygen consumption in the impaired segments.
Sponsor
Sponsored and Organized by: U.S. Geological Survey, Georgia Department of Natural Resources, Natural Resources Conservation Service, The University of Georgia, Georgia State University, Georgia Institute of Technology
Date
2001-03
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Resource Type
Text
Resource Subtype
Proceedings