The purpose of this document is to provide a brief overview of the dynamics of chemical processes that govern contaminant transport and speciation during water exchange across the GW/SW transition zone and to present results from a field study examining the ...

This fact sheet describes results of studies by the U.S. Geological Survey at the Saco Municipal Landfill, Saco, Maine. The source of arsenic in ground water and effects of landfill leachate on arsenic concentration in ground water are described.