ABSTRACT
Since the early 1980s, leachate originating from the Alice and Fraser municipal landfill has been discharging into a natural marsh located some 300 m downgradient from the waste disposal site. However, monitoring of the water quality within the marsh indicates that the contaminant level has not yet surpassed background concentration downstream from the immediate discharge area. A combination of two existing mathematical models was used in an attempt to predict the mobility of several contaminant species within the marsh environment. Parameters needed for the predictive model were gathered based on the physical configuration of the landfill and the marsh, as well as on laboratory-derived data on the attenuation capacity of the marsh soil matrix.
