These proceedings of the International Water Association conference held in Valencia, Spain in March 2008 reflect the performance indicators developed in the final stage of the COST C18 Action in the EU. Here over 30 papers cover performance indicators, metric and process benchmarking, asset management and regulation and a selection of case studies. Paper topics include cross-linked performance indicators for sustainability evaluations, performance assessment as a management tool for water facilities governance in developing countries, web-based applications, activity-based costing and benchmarking, proactive crisis management, technical performance indicators in urban areas, optimal utility incentives in local settings, and benchmarking the process of customer meter reading and meter replacement. Case studies come from projects developed in such locations as the Czech Republic, the Slovak Republic, Jakarta, South Africa, Austria, Portugal, and Greece. Each paper includes its own references.