Potential environmental issues consist of heavy
metal, PAH, PCB, and solvent impacts to soil and groundwater as
a result of historic disposal activities prior to construction of
the EAF Dust Landfill. The potential also exists for similar impacts
to have moved into SCU 33 from the adjacent High Dump or Tank Farm
Blast furnace slag was widely used as a fill material in this area.
Various heavy metals are known to be present in blast furnace slag,
but often in a highly immobile state. An important part of future
environmental testing at this site will be the appropriate evaluation
of heavy metal impacts in relations to their environmental risk.