Disi aquifer

The Disi aquifer is a vital fossil groundwater aquifer stretching from the southern edge of the Dead Sea in Jordan to Tabuk in northwestern Saudi Arabia. In Saudi Arabia it is know by the name - Al Sag. The aquifer that is mostly under Saudi territory with a portion of it beneath Jordan, covers an area of approximately 320 kilometers in length and 500 meters in depth. The water is dated to the Pleistocene age (around 30,000 years ago) and is considered non-renewable, due to its minimal recharge rate of about 50 million cubic meters (MCM) per year, which is significantly less than the combined extraction rates of both countries.