During the past decade many countries in the world have experienced droughts, with severe impacts on water urban supply systems. Because droughts are natural phenomena, water utilities must design and implement drought management plans. This topic was selected for the International Course on Drought Management Planning in Water Supply Systems, which took place in Valencia, Spain, on 9-12 December 1997, and was hosted by the Universidad Internacional Menéndez y Pelayo (UIMP).
The contributions in this book have been carefully selected and presented in four sections:

• Introduction
• Water Supply Systems Modernization
• Drought Management in an Urban Context
• Practical Cases (Israel, USA, Italy, Spain)
  To achieve a well-balanced approach, authors were invited from academia as well as from consultancies and water utilities, and have wide experience in the subject. The book is mainly aimed at water supply engineers, working in utilities and consultancies.

Zusammenfassung
Proceedings from the UIMP International Course held in Valencia, December 1997

Inhalt
Water Supply Systems in Drought Periods. The Case of Spain.- Geographical Information Systems (GIS) Applied to Water Supply Systems (WSS).- The Modelling of Water Distribution Systems.- Improving Hydraulic Efficiency in a Water Distribution System.- Modeling Water Quality in Distribution Systems.- Reliability and Risk in a Water Supply System Emphasising Drought Periods.- Performance Indicators for water Supply Systems; Current trends and on-going projects.- Performance Indicators for Water Supply Systems. A Case Study.- Sustainable Water Management in an Urban Context.- Managing Water Quality and Quantity Under Drought Condpitons.- Drought Management and Water Transfer Programs: Recent Developments and Research in California.- Urban Water Pricing and Drought Management: A Risk Based Approach.- Drought Management and Water Supply Systems in Israel.- California's Approach to Managing Water Supplies During Droughts.- The Management of Water Resources During Drought in Southern Italy.- Experiences & Conclusions after a Long Drought in the Metropolitan Area of Bilbao ; (August 1988 November 1990).