Zarqa River
The main water source for the King Abdullah Canal (KAC) is the Yarmouk River and the Al-Mukhaibeh wells within the Yarmouk valley: farther south, additional water flows from Wadi el-Arab and from the Zarqa River, and its reservoir behind King Talal Dam. As a result of the 1994 Israel–Jordan peace treaty, some Yarmouk River water is also stored seasonally in Lake Tiberias, being conveyed through a pipe. The canal’s design capacity is 20 m3/second at the northern entrance of the Canal and 2.3 m3/second at its southern end. Water flows by gravity along its 110 km length, ranging in elevation from about 230 meters below sea level to almost 400 meters below. The Canal supplies water for irrigation and 90 million cubic meters/year of drinking water for Greater Amman through the Deir Allah-Amman carrier, which has been constructed in two phases in the mid-80s and in the early 2000s. The Zarqa River contains a mixture of treated wastewater and natural water flow, which influences the water quality downstream of the Zarqa River intake into the KAC.