. . "Groundwater flow." . . "Recharge." . . "Geological Survey (U.S.)" . . "Quelle (Hydrologie)" . . "Wells." . . . . . . . . . . . . . . . "Factors Affecting Areas Contributing Recharge to Wells in Shallow Aquifers" . . . . . . . "Factors affecting areas contributing recharge to wells in shallow aquifers" . . . . . . "Factors affecting areas contributing to recharge to wells in shallow aquifers"@en . . . "Grundwasserleiter." . .