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STORMWATER BEST MANAGEMENT PRACTICES DESIGN GUIDE VOLUME 1 - GENERAL CONSIDERATIONS
Clar, M., B. J. BARFIELD, AND T. O'CONNOR. STORMWATER BEST MANAGEMENT PRACTICES DESIGN GUIDE VOLUME 1 - GENERAL CONSIDERATIONS. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-04/121, 2004.
This document is Volume 1 of a three volume series that provides guidance on the selection and design of stormwater management Best Management Practices (BMPs). This first volume provides general considerations associated with the selection and design of BMPs.
Volume I provides guidance on the following elements: wet weather flow impacts on receiving waters, regulations, BMP design concepts and guidance, BMP types and selection. BMPs can be designed to meet a wide range of goals and objectives. These can range from a single parameter approach such as flood control or pollutant removal, which is typical in older developed watersheds, to multiple parameter ecological sustainability of receiving systems, which is more readily applied to developing watersheds. These management goals will determine the requirement for proper design and the mix of ecological and engineering principles that must be considered. These will typically include hydrology and inflow hydraulics, soil characteristics/infiltration rates, site-specific water quality and location, as well as the condition of the receiving waters. BMP control practices also vary by local regulation and standards. A brief review of currently available design goals and objectives is provided.
Hydrologic concepts and control strategies, criteria and associated standards are summarized. The hydrologic concepts that are presented include: rainfall frequency spectrum, large storm hydrology, small storm hydrology, ground water recharge hydrology. Control strategies for peak discharge control and water quality control are also summarized. Currently used BMP types are described and guidance is provided on their selection and suitability for the various goals and objectives. BMPs can be classified in a number of ways, typically based on function, which include the following broad categories: pollution prevention, runoff control, end-of-pipe treatment control, source control, micro management control, regional control and structural or non structural control.
A brief summary of the suitability of the various BMP types to address the identified impact areas is provided. Also provided is BMP selection guidance with respect to the following design factors: watershed factors, terrain factors, physical site factors, community and environmental factors, location and permitting factors.
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