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EPRI’S WATERSHED ANALYSIS RISK MANAGEMENT FRAMEWORK (WARMF) VS. USEPA’S BETTER ASSESSMENT SCIENCE INTEGRATING POINT AND NONPOINT SOURCES (BASINS)
Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.orgCitation: Pp. 460-470 in Total Maximum Daily Load (TMDL) Environmental Regulations–II Proceedings of the 8-12 November 2003 Conference (Albuquerque, New Mexico USA), Publication Date 8 November 2003. .(doi:10.13031/2013.15597)
Authors: B. T. Neilson, J.S. Horsburgh, D.K. Stevens, M.R. Matassa, and J.N. Brogdon
Keywords: WARMF, BASINS, WinHSPF, watershed modeling, decision support systems, TMDLs, watershed management
There are numerous water quality modeling packages available from industry and government
that assist in watershed decision-making and total maximum daily load (TMDL) development.
Uncertainty exists among decision makers concerning the appropriateness of these tools and
modeling packages to specific TMDL issues. Tennessee Valley Authority (TVA), in
collaboration with Utah State University and the Electric Power Research Institute (EPRI), has
undertaken a comparison of Better Assessment Science Integrating Point and Nonpoint Sources
(BASINS) and Watershed Analysis Risk Management Framework (WARMF). BASINS,
developed by the USEPA, and WARMF, developed by EPRI, are watershed management
decision support systems that integrate data, geographic information systems (GIS), and models.
Although similar in their description, there are important differences in model setup
requirements, technical expertise requirements, overall modeling approaches, and the application
of model results to watershed decision making and TMDL development.