of several pesticide compounds, and varying levels of arsenic and lead, Several areas of the site have arsenic contamination levels on the order of 100 ppm. Two "hot spots" have arsenic levels up to 3,800 ppm. Lead contamination in the soil is on the order of a few tens of ppm. Thus, with respect to incinerability evaluation, the primary concern surrounds the fate of arsenic and lead in the soil when it is subjected to incineration. The effect of incineration on the fate of arsenic and lead in soil is currently unknown.A second concern relates to whether incineration can effectively destroy the organic pesticide contaminants in the soils. Therefore, the test conditions were designed to evaluate the effects of varying incinerator operating conditions on organic contaminant destruction and on the fate of the arsenic and lead in the soil. Specifically, the test program attempted to answer these questions:RBMBDI~TIoN/SPRING 1991 227
Washington 2 5 , D. C. N U l e This document i s an interim memorandum prepared primarily for internal reference and does not repreient a final expression of the opinion of Westirighouse. When this memorandum is distributed externaliy, it is.with the express understanding that Westinghouse makes no representation as to completeness, accuracy, or usability of informa-' tion contained therein.
This report was prepared as an account of work sponsored by an agency of the United States Government. Neither the United States Government nor any agency thereof, nor any of their employees, make any warranty, express or implied, or assumes any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represents that its use would not infringe privately owned rights. Reference herein to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. The views and opinions of authors expressed herein do not necessarily state or reflect those of the United States Government or any agency thereof. DP-MS-87-161 RISK ASSESSMENT OF MIXED WASTE SITES *The information contained in this article was developed during the course of work under Contract No. DE-AC09-76SR00001 with the US. Department of Energy.
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