10.4122/1.1000001448 Huber, W. C. Wells, W. J. Hydrologic regionalization impacts on wet-weather control selection DTU Library, Technical University of Denmark (DTU) 2005 Best management practices BMP performance continuous simulation performance regionalization SWMM Oregon State University, Department of Civil, Construction, and Environmental Engineering en Conference full text 10.4122/1.1000001447 application/pdf 1 Continuous simulation is performed using the U.S. Environmental Protection Agency (USEPA) Storm Water Management Model (SWMM) to evaluate regional differences around the United States in hydrologic and water quality performance of wet-weather controls. Controls are characterized as being limited by peak inflow rate (i.e., any device with little or no storage, such as screens, filters, and some proprietary devices) or by storage capacity (e.g., ponds, tanks). For flow-limited devices, results are presented in the form of percentage of annual runoff volume captured (passing through the device) for a given inflow capacity. For storage-limited devices, results are presented in two forms: percentage of annual runoff volume captured as a function of unit basin size and drawdown (drain) time, and as percentage of total suspended solids captured, for the same two variables. Regional differences are apparent, driven mainly by variations in rainfall patterns around the country.