Health assessment for West Lake Landfill, Bridgeton, St. Louis County, Missouri, Region 7. CERCLIS No. MODO79900932. Preliminary report

The West Lake Landfill, located in the City of Bridgeton, St. Louis County, Missouri, was proposed for the National Priorities List (NPL) in October 1989. Soil contaminated with radioactive waste from decontamination efforts at the Cotter Corporation's Latty Avenue plant in Hazelwood, Missouri, was dumped at the landfill in 1973. The radioactive soil was used as cover over refuse and in later years the radioactive soil itself was covered with additional soil and debris. The area around the landfill consists mostly of industrial buildings and business offices with small residential communities to the south and east. Agricultural river bottom land borders to the west, but it is fast being encroached upon by Earth City which is being developed for commercial purposes. The site presents no apparent public health hazard because the available data indicate human health is not currently being affected. Exposures of concern could occur if ground water contamination increases and spreads, exposed radioactive materials on the northwestern edges of the landfill move off site, or on-site worker exposure increases. Continued monitoring is recommended until additional environmental data are available to assess the on-site and off-site contamination and help predict future activity