الفهرس 
ABSTRACT
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Abstract
Water distribution systems are a pivotal part of the infrastructure of urban
or rural communities. To deliver water to consumers, it is required to achieve a
minimum flow and pressure criteria as well as the increasingly stringent water
quality standards. However, water supply companies are facing growing costs
due to aging and failure infrastructure and also due to the excess energy
consumption resulted due to it. This problem becomes more complex because
the decision-making has large, long lasting consequences and is fraught with
risk and uncertainty.