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The Disi Water Conveyance Project is a water supply project in Jordan. It is designed to pump 100,000,000 cubic metres (2.2×1010 imp gal) of water per year from the Disi aquifer, which lies beneath the desert in southern Jordan and northwestern Saudi Arabia. The water is piped to the capital, Amman, and other cities to meet increased demand. Construction began in 2009 and was mostly completed in July 2013 when the project was inaugurated by King Abdullah of Jordan. Its total cost was US$1.1 billion.