Head of groundwater at the Ministry of Water Resources and Irrigation Madiha Mustafa said there are general rules for the use of Nubian underground water storage reservoir. It extends to four countries, including Egypt, Sudan, Libya and Chad and there is a joint body under the chairmanship of head of National Center for Water Research, Shaden Abdel Gawad, which discusses the use of the reservoir periodically. She explained the use of the reservoir is not governed by international agreements to regulate its use and management have but through amicable agreements based on the conditions of each country. In a special statement to Youm7, Madiha discussed the need for scientific accuracy in dealing with the reservoir since it was proposed of late in its use. This does not take into account that the reservoirs waters were not replenished themselves for some time. The current model for its use dates back thousands of years when there was heavy rain in Western Sahara, which is not the case now. She noted the ministry is trying to manage within the framework of a national strategy to ensure the right of future generations to use this resource of important water. By setting down rules for the safe withdrawal of water, it should take into account economic aspects. At the end of her remarks, Madiha Mustafa said continuing studies continued to carry out by the ministry, including the Institute for Groundwater Research at the National Center for Water Research. She pointed out there is a conflict around the figures of Egypt's share of this reservoir due to different use of mathematical models used in the evaluation. Apparently, it is between 120,000 and 200,000 billion cubic meters but the official figure available for years in the ministry confirms Egypt's share is up 150,000 billion cubic meters.
