Increasingly, our demands for water for both human activity and the environment, are pushed to the limits of naturally available water resources. Engineered water reuse systems can harness natural cycles to augment water demands, but the challenges, opportunities, and benefits of water reuse are broad and diverse.The Water Reuse Roadmap is an overview of all the opportunities and issues faced by water reuse projects. Developed to help water managers facilitate successful water reuse programs, from concept development through implementation and maintenance, the guidance in this book enables water managers to determine the social, technical and financial feasibility of water reuse options in their specific situation, initiate a water reuse program when appropriate, or expand an existing reuse program based on new approaches and opportunities for innovation. It begins with initial concept development; then describes stakeholder engagement, regulatory, risk assessment, and planning processes; and finishes with advice on financing, implementing, operating, and maintaining water reuse infrastructure. In addition to this detailed guidance, the Roadmap includes case studies to help water managers holistically identify, evaluate and implement their water reuse options.