Record Display for the EPA National Library Catalog


Main Title Thorium residuals in West Chicago, Illinois /
Author Frigerio, N. A.
Other Authors
Author Title of a Work
Larson, T. J.
Stowe, R. S.
Publisher The Commission ; Available from National Technical Information Service,
Year Published 1978
Report Number NUREG/CR-0413; ANL/ES-67
OCLC Number 08917242
Subjects Thorium--Isotopes ; Radioactive waste disposal in the ground--Illinois--Chicago
Library Call Number Additional Info Location Last
EJBM  TD898.2.F7 1978 Headquarters Library/Washington,DC 06/22/2007
Collation iv, 28 pages : maps ; 28 cm
"Argonne National Laboratory, Division of Environmental Impact Studies." "September 1978." Includes bibliographical references. "NRC FIN no. A2071." "NUREG/CR-0413." "ANL/ES-67."
Contents Notes
Lindsay and Company began operation of its west Chicago, Illinois, plant in 1931, processing thorium ores for thorium and rare earths.^From that time until normal operations ceased in 1973, thorium residuals from the operation found their way offsite to Reed-Keppler City Park, the West Chicago Sewage Treatment Plant, and numerous other locations about the city and its environs.^The present study located and identified such thorium residuals in the West Chicago area, a total of 75 epicenters having been found in addition to deposits at Reed-Keppler Park, the sewage-treatment plant, and down Kress Creek and the DuPage River.^Deposits proved to be almost exclusively the dense, gray, insoluble particles of thorium-ore tailings from the process, which have been historically stored in two large piles in the site waste area.^Epicenter locations and associated radiological parameters are given for the 75 locations, along with quantitative descriptions of the larger collections of material at the park, at the sewage-treatment plant, and on the banks of Kress Creek and the DuPage River.^Not one of the areas of thorium residuals located outside security fences was found to violate the requirements of 10 CFR 20.