PROCEDURE FOR SHIFTING GROUNDWATER MONITORING LOCATIONS TO ENHANCE DETECTION EFFICIENCY NEAR LANDFILLS

A heuristic was devised for shifting contaminant detection wells near landfills. The heuristic establishes an initial configuration of monit oring wells and then shifts the wells iteratively until it reaches a s pecified release detection efficiency. Computer simulations of contami nant transport gauge the performance of the monitoring configurations. In configurations derived by the heuristic, all wells are located the same distance from a landfill, measured parallel to groundwater flow. This facilitates a uniform lag time for release detection. However, t he distance between wells, measured perpendicular to groundwater flow, can vary to enhance overall detection efficiency. In practice, the he uristic can be used to identify effective monitoring configurations fo r detecting potential releases from landfills.