Yarmouk River
Much of the flow of the Jordan River is diverted by Israel and much of the flow of the Yarmouk River by Syria, leaving only a small share to Jordan. Syria and Jordan have signed a bilateral treaty over the sharing of the Yarmouk River in 1987 in preparation for the construction of the Al-Wehda Dam on the border between the two countries. An Annex to the Israel–Jordan Treaty of Peace of 1994 specifies the allocation of the Jordan River and the lower Yarmouk River water between the two countries. As part of this treaty, Israel supplies Jordan with 20 million cubic metres per year during the summer from the Sea of Galilee in exchange for the same amount that Israel pumps from the Yarmouk River in the winter for storage in the Sea of Galilee. The treaty also specifies the supply of 10 million m3 of desalinated brackish water from Israel to Jordan and the supply of an additional 50 million cubic metres per year of drinkable water for Jordan from an unspecified source. This water could come from the Sea of Galilee or brackish water springs.