Immediately to the south of the old EAF dust disposal cell is an area that has been set aside for the disposal of low-concentration asbestos-containing materials. These materials currently consist of concrete and brick debris from the demolition of the No. 6 Open Hearth stack, and metal siding from various buildings demolished in 2001. The concrete and metal siding have a thin coating that contains asbestos.

No buildings or other structures are known to have existed in this area. A steep embankment borders the High Dump area to the west, and the Tar Ponds Incinerator pipeline traverses the eastern side of the area in a north-south direction. The four Tank Farm bunker ‘C’ tanks are located to the north of SCU 34.

Excavator placing waste brick in the disposal location

The majority of open space in this area is covered with granular materials. Steep slopes along the western side of this area show signs of significant surface erosion. Due to the close proximity of the slopes to the demolition debris area, siltation may effect ongoing disposal operations.

Potential environmental issues consist of heavy metal, petroleum, PAH, PCB, and solvent impacts to soil and groundwater as a result of impacts from the adjacent High Dump or Tank Farm areas, as well as historic disposal activities within SCU 34.

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.