For upper-division undergraduate or beginning graduate courses in civil and environmental engineering. The Eighth Edition of this bestselling text has been revised and modernized to meet the needs of today's environmental engineering students who will be engaged in the design and management of water and wastewater systems. It emphasizes the application of the scientific method to problems associated with the development, movement, and treatment of water and wastewater. Recognizing that all waters are potential sources of supply, the authors present treatment processes in the context of what they can do, rather than dividing them along clean water or waste water lines. An abundance of examples and homework problems amplify the concepts presented.

This task committee report explores the features and trends in state water planning since 1986. Historically, the federal government was the planner for large-scale water resource development. Now the states are the major players in this process. This shift is a result of several events, such as: devolution of federal water programs, emergence of a sustained focus on environmental protection and restoration, elimination of funding for the Water Resources Planning Act of 1965, and changes in federal cost sharing policies. Contemporary state water plans continue to have ties with the past, but they also reflect changing social preferences and strong support for environmental protection and restoration. These water plans incorporate a wide range of water quantity and quality components, such as source water assessment and total maximum daily loads. Also, there has been a rekindling of the ""watershed focus"", an emergence of sustainable development as a planning goal, and the introduction of new techniques such as adaptive management and shared vision modeling. This report compiles the critical water resources planning actions and strategies for all 50 states, and will be of interest to state and federal water planners and water resource agencies.

Technology plays a vital role in influencing sound decisions regarding water resources. The mission of this book is to show the impact technology has had on water resource planning and management - historically, and into the future. This study provides: the range of technologies applicable to water resource planning, management, and policy making; the research and analysis of new technologies such as adaptive management, shared vision modeling, and geographic information systems; and, a foundation for research into similar disciplines. Selected case studies cover a variety of settings, materials, and insights into new technological approaches. This publication is a valuable resource for students, engineers, practitioners, and educators.