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DESIGN OF THE DECISION SUPPORT SYSTEM FOR PLACEMENT AND SELECTION OF BEST MANAGEMENT PRACTICES (BMPS) FOR STORMWATER CONTROL IN URBAN WATERSHEDS
Citation:
Riverson, J., J. Zhen, H. Manguerra, L. Shoemaker, AND D Lai*. DESIGN OF THE DECISION SUPPORT SYSTEM FOR PLACEMENT AND SELECTION OF BEST MANAGEMENT PRACTICES (BMPS) FOR STORMWATER CONTROL IN URBAN WATERSHEDS. Presented at World Water and Environmental Resources Congress 2004, Salt Lake City, Utah, 6/27-7/1/2004.
Description:
A decision support system for selection and placement of best management practices (BMPs) at strategic locations in urban watersheds is being developed. The primary objective of the system is to assist stormwater management practioners and decision makers in developing effective, representative, and analytically evaluated urban watershed planning and TMDL implementation programs. The system is called the Integrated Stormwater Management Decision Support Framework (ISMDSF).
There are four major design aspects for the ISMDSF methodology. First, the system provides a robust computer platform for BMP selection, design, and placement in the context of several integrated watershed factors and influences. Second, the tool will be applicable to mixed land use urban watersheds, and involve watershed simulation considering approaches based on watershed size, scale, anthropogenic, and natural characteristics. Third, it will incorporate hydrologic/hydraulic and water-quality modeling, integrating runoff and direct contributions to surface water bodies baed on relevant date collection. Finally, the system will have the capability to objectively evaluate multiple solution alternatives based on desired water-quality objectives.
Program that would benefit from the application of the ISMDSF include MS4 permits, stormwater NPDES phase II, TMDL evaluation, and general source water protection. The ISMDSF will provide a means for objective analysis of management alternatives among multiple interacting and competing factors. The desired outcome from the system application is a thorough, practical, and informative assessment considering the most significant urban watershed factors.
This paper will describe the design of the ISMDSF including system components, linkages between components, and specific algorithms included for use in the evaluation of management practices. An evaluation of availabe models for watershed modeling and management practice modeling will be included. The benefits and limitations of the techniques used for simulation of management practices will be discussed. The design and use of optimization solution techniques for selection of least cost alternatives will also be discussed.