ABSTRACT

Modern urban water management has evolved from the need to address rapidly changing land use that has local, regional, and global hydrologic consequences. In an urban setting, water is concentrated into small natural channels, man-made open channels and storm sewers, natural and engineered swales, and detention structures. The complexity of the many interactions from runoff generated by precipitation over both pervious and impervious surfaces requires a comprehensive mathematical modeling approach, albeit limited by the availability of rainfall/runoff quantity and quality data within the study area. Quantitative methods incorporated into computer codes such as the comprehensive distributed routing US Environmental Protection Agency Storm Water Management Model (EPA SWMM) are reviewed and applications are presented.