The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.

Prepared byØtheØTask Committee of the Urban Water Resources Research Council of ASCE. Copublished by ASCE and the Water Environment Federation. Design and Construction of Urban Stormwater Management Systems presents a comprehensive examination of the issues involved in engineering urban stormwater systems. This Manual?which updates relevant portions of Design and Construction of Sanitary and Storm Sewers, MOP 37?reflects the many changes taking place in the field, such as the use of microcomputers and the need to control the quality of runoff as well as the quantity. Chapters are prepared by authors with experience and expertise in the particular subject area. The Manual aids the practicing engineer by presenting a brief summary of currently accepted procedures relating to the following areas: financial services; regulations;Ø surveys and investigations;Ø design concepts and master planning;Ø hydrology and water quality;Ø storm drainage hydraulics; andØ computer modeling.

The complete guide to managing the quantity and quality of urban storm water runoff. Focuses on the planning and design of facilities and systems to control flooding, erosion, and non-point source pollution. Explains the practical application of the state-of-the-art in concepts and methods, based on the author's nearly 20 years' urban water resources engineering experience in the public and private sectors--and the state-of-the-art of urban surface water management is far ahead of the state-of-the-practice. This book covers all the major methods, and discusses other available, but little-known, concepts, tools, and techniques. Chapters cover the emergency and convenience system concept, master planning, computer modeling, multi-purpose flood control/water-quality enhancement/recreation facilities, and more.

qit-Stormwater-qit is a comprehensive source of detention techniques and management practices for the management of stormwater discharges and combined sewer overflows (CSOS). This second edition has been extensively revised and brought up-to-date.