DISCRETE-LEVEL GROUNDWATER MONITORING-SYSTEM FOR CONTAINMENT AND REMEDIAL PERFORMANCE ASSESSMENT OBJECTIVES

A passive discrete-level multilayer ground-water sampler was evaluated to determine its capability to obtain representative discrete-interva l samples within the screen intervals of traditional monitoring wells without purging. Results indicate that the device is able to provide s uch data for the inorganic contaminants and species analyzed in the st udy and provided more accurate estimations of contaminant distribution s and mass in the vertical direction within a sandy Atlantic coastal p lain aquifer, than ''traditional'' sampling methods.