GIBRALTAR MANUFACTURING COMPANY
EAST ALTON, MADISON COUNTY, ILLINOIS
The purpose of this health consultation is to evaluate information currently available for the Gibraltar Manufacturing site for any known or possible human health hazards. The Illinois Department of Public Health (IDPH) used site-specific information provided by the Illinois Environmental Protection Agency (IEPA), the U.S. Environmental Protection Agency (EPA), and other agencies to develop this health consulation. IDPH staff conducted a file review at the IEPA Bureau of Land in 1997 . IDPH made observations during a visit to the site and surrounding area on June 26, 1997. IDPH conducted interviews with IEPA staff in Springfield, Illinois, offices . IDPH primarily used an assessment generated by Shifrin & Associates, an environmental engineering firm hired by the property owner's estate, for environmental data .
Gibraltar Manufacturing is a former foundry located within an industrialized area of East Alton, Illinois, north of the Mississippi River (Figure 1). Chessen Lane borders the west side of the site, and the Norfolk and Western Railroad borders the south side. Plant buildings have been demolished and removed. Both empty and filled drums found on the site were evaluated and removed in 1992. The use of electrical capacitors at the site may have contributed to the presence of polychlorinated biphenyls (PCBs) in on-site soil, but the contaminated soil has reportedly been excavated and removed. The property is presently fenced and vegetated.
In November 1994, IEPA began field work on the site in response to a request from EPA. IEPA prepared an Integrated Site Assessment. Four soil samples from 0 to 4 inches in depth were collected. Two of the four samples exceeded IEPA criteria, so IEPA determined that characterization of the site should continue. Independent contractors developed a sampling plan, dated February 14, 1996, that was approved by IEPA. The property owner's estate joined the voluntary IEPA Site Remediation Program and has been cleaning up the old manufacturing site.
In December 1996, contractors cleared the site and had it surveyed. A sampling grid (Figure 2) was established for the former operations areas, and 63 surface soil samples were analyzed for total lead. Six soil samples (2C, 2D, 2E, 11C, 11D, and 12E) were collected from 0 to 6 inches in depth. Additional subsurface fractions were submitted for analyses in areas 2D and 12E because a field photoionization detector response indicated a need for further evaluation. Samples were analyzed for volatile and semivolatile organic compounds. Shifrin & Associates compiled a list of contaminants whose concentrations were found above laboratory detection limits (Tables 1, 2 and 3) .