This book reflects the outcome of a three day NATO Advanced Workshop entitled "Supply of Water to Cities in Emergency Situations." Some 35 experts from 14 countries from Europe, the Middle East and Asia assembled in Tel-Aviv for this event. It illuminates a broad spectrum of problems and concerns to the orderly water supply ranging from floods to a surprisingly low concern related to intentional terror-related threats.

This book is based on a public-health approach to the provision of water and sanitation in emergencies: an approach that is information-based and people-based. It emphasizes the need for a coordinated and phased response, which adapts to meet constantly changing needs.

This publication draws attention to the importance of ensuring that water and sanitation systems remain fully operational in the aftermath of natural disasters. This is critical if countries are to ensure there are no setbacks to the hard-won achievements in terms of access to these services. Risk management is an important tool for the fulfillment of global challenges to provide water and sanitation services to all at all times.

Each year more than 200 million people are affected by floods, tropical storms, droughts, earthquakes, and also operational failures, wars, terrorism, vandalism, and accidents involving hazardous materials. These are part of the wide variety of events that cause death, injury, and significant economic losses for the countries affected. In an environment where natural hazards are present, local actions are decisive in all stages of risk management: in the work of prevention and mitigation, in rehabilitation and reconstruction, and above all in emergency response and the provision of basic services to the affected population. Commitment to systematic vulnerability reduction is crucial to ensure the resilience of communities and populations to the impact of natural and manmade hazards. Current challenges for the water and sanitation sector require an increase in sustainable access to water and sanitation services in residential areas, where natural hazards pose the greatest risk. In settlements located on unstable and risk-prone land there is growing environmental degradation coupled with extreme conditions of poverty that increase vulnerability. The development of local capacity and risk management play vital roles in obtaining sustainability of water and sanitation systems as well as for the communities themselves. Unfortunately water may also represent a potential target for terrorist activity or war conflict and a deliberate contamination of water is a potential public health threat. An approach which considers the needs of communities and institutions is particularly important in urban areas affected by armed conflict. Risk management for large rehabilitation projects has to deal with major changes caused by conflict: damaged or destroyed infrastructure, increased population, corrupt or inefficient water utilities, and impoverished communities. Water supply and sanitation are amongst the first considerations in disaster response. The greatest water-borne risk to health in most emergencies is the transmission of faecal pathogens, due to inadequate sanitation, hygiene and protection of water sources. However, some disasters, including those involving damage to chemical and nuclear industrial installations, or involving volcanic activity, may create acute problems from chemical or radiological water pollution. Sanitation includes safe excreta disposal, drainage of wastewater and rainwater, solid waste disposal and vector control. This book is based on the discussions and papers prepared for the NATO Advanced Research Workshop that took place in Ohrid, Macedonia under the auspices of the NATO Security Through Science Programme and addressed problems Risk management of water supply and sanitation systems impaired by operational failures, natural disasters and war conflicts. The main purpose of the workshop was to critically assess the existing knowledge on Risk management of water supply and sanitation systems, with respect to diverse conditions in participating countries, and promote close co-operation among scientists with different professional experience from different countries. The ARW technical program comprised papers on 4 topics, : (a) Vulnerability of Wastewater and Sanitation Systems, (b) Vulnerability of Drinking Water Systems, (c) Emergency response plans, and (d) Case studies from regions affected by Drinking Water System, Wastewater and Sanitation System failures.

Water and wastewater utility managers will find expert guidance on all issues regarding security and emergency preparedness and response in this book. The terrorist attacks on the US of Sept. 11, 2001, as well as destruction caused by Hurricane Katrina in 2005, brought heightened concern over the security and emergency preparedness of America's water supply infrastructure--concerns which remain high to this day.

Of critical importance to all utilities, this report includes a checklist of best management practices for self-assessment for disaster preparedness. This report addresses both natural and human-caused threats or hazards.