DESCRIPTIVE RECORD TITLE Assessment of Analytical Data Submitted by DuPont in Response to Proposed Inorganic Chemical Industry Hazardous Waste Determination for K178 ORGANIZATIONAL AUTHOR U.S. Environmental Protection Agency Office of Solid Waste, OSW (Note: Office of Solid Waste, OSW, was renamed Office of Resource Conservation and Recovery, ORCR, on January 18, 2009)Ariel Rios Building (5302W) 1200 Pennsylvania Avenue N.W. Washington, DC 20460 DESCRIPTION This document represents EPA's analysis of analytical data submitted by DuPont in public comment on the proposed inorganic chemical listing determination and rulemaking. ABSTRACT In response to the proposed listing determination for wastes generated by inorganic chemical manufacturing (65 FR 55684), DuPont provided extensive new analytical data to support their argument that their waste is not hazardous. This document presents EPA's review of DuPont's data, with particular emphasis on the validity of DuPont's thallium analyses. DOCUMENT DATE October 2001 REMOVAL DATE October 2006