The purpose of this study are to examine the national potential of the concept by determining the number of pump-and-treat sites across the nation; Investigating a representative sample of sites to determine the technical and economic feasibility of coupling geothermal heat pumps systems to existing pump-and-treat remediation activities; Conducting a case study using heat pumps in conjunction with existing pump-and-treat facilities at Lawrence Livermore National Laboratory (LLNL) to condition Laboratory buildings