This study of recharge mechanisms to the Memphis aquifer in Shelby County, Tennessee, sought to develop better tools to enhance MLG&W's capabilities in managing water resources of the Memphis aquifer and improve sourcewater protection. The specific objective of the study was to develop a better understanding of the magnitude and impact of recharge through windows in the upper Claiborne confining layer. The study was successful in describing in more detail the flow behavior and unique age distribution characterization at this shallow aquifer. The combined tools used to study the window site have resulted in a new proposed hydrostratigraphic conceptual model for the site explaining the most probable genesis of the window as well as groundwater flow patterns in and around the window. Includes CD.