Origin and residence time of water in the Lima Aquifer

摘要: The 8 million inhabitants of the coast Lima City are supplied with water from Rimac and Chillons rivers wells in aquifer. Historics River flow static level correlated order to calculate residence time since aquifer is recharged by until reaches a well located 12 km farther, Miraflores district near sea. Relative abundances 2H 18O used identify origins waters those wells. 3H 14C contents, respectively, estimate ages waters.