الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
In year 2006/2007, the total number of replacement and renovation projects potable and waste water projects, which listed according to the Egyptian government five year plan, is 222 projects as the year target all over the country. Only 4 projects were completed with 3.8% of the target and 25 projects have been completed, partially, through 2006/2007 then delivered in 2007/2008. It was found that other projects about 193 projects are delayed in the implementation more than one year and some of them delayed to 2011/2012.
Risks are causing cost overrun and project time delay that leads to delay the benefit of projects, lake of water delivery, unsafe disposal of wastes and increasing disease. The large construction companies that granted the implementation of potable and waste water projects might hire some subcontractors. The most critical risk is the lack of clear vision of the project from the beginning which causes modification of project drawings and maps, in addition to other modifications that appear during the work in the field of the project.