This study presents for the first time an independent and authoritative analysis of water quality management in North and South America, and discusses the practices and future implications of the impacts of the current practices in the different countries of the hemisphere. Includes in-depth case studies analyzing water quality management practices at country and state levels, especially in terms of their effectiveness and overall impact.

In December 2002, a group of specialists on water resources from the United States and Iran met in Tunis, Tunisia, for an interacademy workshop on water resources management, conservation, and recycling. This was the fourth interacademy workshop on a variety of topics held in 2002, the first year of such workshops. Tunis was selected as the location for the workshop because the Tunisian experience in addressing water conservation issues was of interest to the participants from both the United States and Iran. This report includes the agenda for the workshop, all of the papers that were presented, and the list of site visits.

The global attention in recent years has focused primarily on water quantity and allocation issues. Water quality has received significantly less attention than water quantity. Commendable progress has been made by the developed world to control point sources of pollution, but commensurate progress in reducing non-point sources has not been made. In the third world countries both point and non-point sources of pollution are becoming increasingly a serious concern. Already, nearly all water bodies in such countries near and around urban centres have been severely polluted, with very high health and environmental costs. The book assesses the current status of water quality management in both developed and developing worlds, as well as analysing the effectiveness of economic instruments and legal and institutional frameworks to control water contamination. It outlines the importance of building up social and political awareness to reverse the trend of continuing water quality deterioration, which is likely to be a most challenging task in the coming years. This book was published as a special issue of International Journal of Water Resources Development.

The chapters in this volume are peer reviewed editions of the papers presented at the 7th meeting of the Rosenberg International Forum on Water Policy which was held in Buenos Aires, Argentina on November 15-17, 2010. The theme for Forum VII was Water for the Americas: Challenges and Opportunities. This Forum was unique in examining the water problems of the Americas and identifying water management experience gleaned in other parts of the world that might be useful in addressing the problems of the Americas. The sessions illustrated how the water problems of the Americas are common problems, differing only in degree from basin to basin. There was unanimity among the participants about the need for all inhabitants of the Americas to work together to ensure that everyone has access to adequate quantities of healthy water supplies and to appropriate sanitation services. This volume’s approach is to identify different responses and policies that address common issues and learn from contrasts and experiences. The value and potential that this approach affords is that it provides critical judgments about what has worked well and what needs to be done to gain a better future for the Americas’ water resources and society. Some issues covered in the volume are so pressing and urgent, chief among them is serving the unserved, that any delays putting out new facilities in many a rural areas of Central America may cost lives and reduce the outlook for children. Additionally, the volume makes clear that the outlook for the poorest and the future of hundreds of growing cities are threatened by climate change. This book looks into the future by analyzing present and relevant data and gains insight from the different developmental stages of the hemisphere.

Water Quality Management covers the fundamentals of water quality; water quality modeling and systems analysis of streams, reservoirs, and estuaries; and practical water quality topics and problems. The book presents topics on the legal aspects; the physical, chemical, and biological dimensions of water quality; and water quality requirements. The text also describes the pollution inputs from both point and nonpoint sources; eutrophication; thermal pollution; and groundwater quality. Detailed discussions on water quality parameters and characteristics; hydrologic and hydraulic aspects of water quality; mixing; and simple and complex water quality models are also included. The book further tackles topics on waste assimilative capacity determination, as well as effluent outfall design. Practicing environmental engineers and professionals involved in pollution abatement programs, environmental students undertaking studies in water quality management, and professionals involved in water quality management or water resources problems will find the text quite.

This manual comprises a holistic view of urban runoff quality management. For the beginner, who has little previous exposure to urban runoff quality management, the manual covers the entire subject area from sources and effects of pollutants in urban runoff through the development of management plans and the design of controls. For the municipal stormwater management agency, guidance is given for developing a water quality management plan that takes into account receiving water use objectives, local climatology, regulation, financing and cost, and procedures for comparing various types of controls for suitability and cost effectiveness in a particular area. This guidance will also assist owners of large-scale urban development projects in cost-effectively and aesthetically integrating water quality control to the drainage plan. The manual is also directed to designers who desire a self-contained unit that discusses the design of specific quality controls for urban runoff.