Title:
What Does It Take to Retrofit an Urban Watershed to Meet Water Quality Standards and TMDLs?
What Does It Take to Retrofit an Urban Watershed to Meet Water Quality Standards and TMDLs?
Files
Author(s)
Copp, Roger
Ammons, Nick
Ammons, Nick
Advisor(s)
Editor(s)
Hatcher, Kathryn J.
Collections
Supplementary to
Permanent Link
Abstract
Fulton County sponsored a watershed
management planning study and a retrofit plan was
developed for the Sandy Springs area north of Atlanta.
Detailed studies were conducted to determine existing
water quality problems and to identify solutions to
improve water quality and to reduce flooding. The
plan identified 20 bridge and culvert replacements, 24
pond retrofits, 40 new ponds, 20 in-stream BMPs, 135
on-site BMPs (e.g. edge of parking lot filters,
ecoroofs), and 4.8 miles of stream restoration. The
total cost of the restoration project will be in the range
of $68,700,000, of which 13% is for flood control.
The BMPs are predicted to reduce the phosphorus
load from the study area by 26% and will result in an
average phosphorus concentration of 0.1 mg/1 in
Sandy Springs streams without lakes and 0.05 mg/I for
stream with lakes. These BMPs are expected to
improve stream health so that aquatic integrity can
improve from poor to fair conditions. The
recommended strategy is being proposed to the State
of Georgia as a plan to achieve a TMDL goal of
compliance with State water quality standards.
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 Issued
2001-03
Extent
Resource Type
Text
Resource Subtype
Proceedings