. ▁Israel ▁took ▁control ▁of ▁the ▁West ▁Bank ▁in ▁ 1 9 6 7 , ▁including ▁the ▁re charge ▁areas ▁for ▁aqu if ers ▁that ▁flow ▁west ▁and ▁north west ▁into ▁Israel ▁and ▁limits ▁were ▁placed ▁on ▁the ▁amount ▁with dra wn ▁from ▁each ▁existing ▁well . ▁Currently , ▁a ▁total ▁of ▁ 1 5 0 ▁million ▁cub ic ▁meters ▁per ▁year ▁is ▁consum ed ▁by ▁its ▁residents — 1 1 5 ▁million ▁cub ic ▁meters ▁per ▁year ▁by ▁Palest ini ans ▁and ▁ 3 5 ▁million ▁cub ic ▁meters ▁per ▁year ▁by ▁Israel is . ▁Water ▁usage ▁issues ▁have ▁been ▁part ▁of ▁a ▁number ▁of ▁agre ements ▁reached ▁between ▁Israel ▁and ▁the ▁Palest in ian ▁Author ity . ▁For ▁these ▁reasons , ▁the ▁question ▁of ▁water ▁supply ▁for ▁both ▁Israel ▁and ▁a ▁potential ▁future ▁state ▁of ▁Palest ine ▁is ▁a ▁very ▁serious ▁issue ▁in ▁a ▁compreh ensive ▁agreement . ▁ ▁South ▁America ▁ ▁The ▁Gu aran í ▁Aqu ifer , ▁located ▁between ▁the ▁Mer cos ur ▁countries ▁of ▁Argentina , ▁Brazil , ▁Par agu ay ▁and ▁Uruguay , ▁with ▁a ▁volume ▁of ▁about ▁ 4 0 , 0 0 0   km ³ , ▁is ▁an ▁important ▁source ▁of ▁fresh ▁pot able ▁water ▁for ▁all ▁four ▁countries . ▁It ▁is ▁re pl en ished ▁by ▁water ▁from ▁ra ins ▁and ▁small ▁rivers ▁and ▁streams , ▁mainly ▁on ▁its ▁marg ins . ▁As ▁popul ational ▁growth ▁in ▁its ▁area ▁is ▁still ▁relatively ▁high ▁( the ▁fe eder ▁areas ▁of ▁the ▁aqu ifer ,