Integrated Assessment Halaco Engineering Company ... - Archives

Halaco Engineering Co. IA Section 1
CAD009688052
More information about the Superfund program is available on the EPA web site at
http://www.epa.gov/superfund. The attached fact sheet describes EPA’s site assessment process
(Appendix F).
1.1 Apparent Problem
The apparent problems at the Site, which contributed to the EPA’s determination that an IA was
necessary include:
• A smelter/recycling facility operated on the Site for approximately 40 years (1965 to
2004).
• Much of the process wastes, including slag, process waters, and other solid and liquid
wastes generated over the life of the facility, were disposed of at the Site (2).
• A waste pile from site activities covers approximately 14 acres at the Site; additional
waste covers approximately 13 acres to the north of the waste pile.
• Slag/waste material appears to have been used as fill to level the Site for expansion and
creation of concrete structures and pavings in the 11 acre Smelter Area of the facility;
waste materials have also been stored in Supersacs TM and loose piles in various structures
in the Smelter Area (Appendix B).
• Historical data indicate that the process wastes contains concentrations of metals that are
significantly above background (2, 3).
• Historical data indicate that the process wastes contains concentrations of radioactive
materials that are significantly above background (2, 3).
• Historical data indicate that contaminants from the process wastes may have migrated to
adjacent soils, wetlands, groundwater, and adjacent surface waters (2, 3).
• The site is currently vacant and poorly secured.
2