Integrated Storm-Water Management for Watershed Sustainability
Publication: Journal of Irrigation and Drainage Engineering
Volume 134, Issue 5
Abstract
One aspect of integrated watershed management evaluates the impact of development on the local hydrologic cycle and, in particular, drinking water, wastewater, and storm-water infrastructure. Sustainable storm-water management focuses on selecting storm-water controls based on an understanding of the problems in local receiving waters that result from runoff discharges. For example, long-term problems associated with accumulations of pollutants in water bodies include sedimentation in conveyance systems and receiving waters, nuisance algal growths, inedible fish, undrinkable water, and shifts to less sensitive aquatic organisms. Short-term problems associated with high pollutant concentrations or frequent high flows (event-related) include swimming beach closures, water quality violations, property damage from increased flooding, and habitat destruction. A wide variety of individual storm-water controls usually must be combined to form a comprehensive wet weather management strategy. Unfortunately, combinations of controls are difficult to analyze. This will require new modeling techniques that can effectively evaluate a wide variety of control practices and land uses, while at the same time ensure that the flood-control objectives also are met. The results of these new models and novel techniques used for storm-water control then can be incorporated into an evaluation of the urban water cycle for a specific service area to determine whether storm-water controls can provide additional benefits such as reduction of potable water use and reduction of sanitary sewer overflow events.
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Acknowledgments
Some of the information included in this paper was developed during prior EPA-funded research concerning future wet weather flow design approaches. The assistance of Richard Field, the EPA project officer, and project coresearchers Steve Nix, Steve Burian, and Rocky Durrans are gratefully acknowledged. In addition, the Tennessee Valley Authority (TVA), Economic Development Technical Services, and the Center for Economic Development and Resource Stewardship (CEDARS) of Nashville, Tenn., are thanked for their support for the development of some of the recent extensions to WinSLAMM which enables the use of a decision analysis framework.
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© 2008 ASCE.
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Received: Jun 29, 2007
Accepted: Apr 10, 2008
Published online: Oct 1, 2008
Published in print: Oct 2008
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