DESCRIPTIVE RECORD TITLE Background Document for Capacity Analysis for Land Disposal Restrictions: Inorganic Chemical Production Wastes (Final Rule) 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 report documents the capacity analysis that EPA conducted to support the land disposal restrictions for inorganic chemical production wastes. EPA conducts capacity analyses for all newly identified hazardous wastes to evaluate the need for national capacity variances from the land disposal prohibitions. ABSTRACT Today's rule concurrently finalizes land disposal restrictions for three listed wastes from antimony oxide and titanium dioxide production. For hazardous waste K176, EPA is promulgating numerical treatment standards, equivalent to UTS, for antimony, arsenic, cadmium, lead, and mercury. For hazardous waste K177, EPA is promulgating numerical treatment standards, equivalent to UTS, for antimony, arsenic, and lead. For hazardous waste K178, EPA is promulgating numerical treatment standards, equivalent to UTS, for thallium and for forms of octa-, hepta-, tetra-, penta-, and hexa- dioxins and furans. In addition, EPA is finalizing an alternative treatment standard of combustion (CMBST) for the dioxin/furan components in K178. For these wastes, EPA has determined that only nonwastewater forms of the waste are generated. However, wastewater forms may occasionally be generated as treatment residuals, etc. To assess the need for national capacity variances, EPA estimated the quantities of waste requiring alternative commercial treatment as a result of the land disposal restrictions and the capacity available at commercial treatment facilities to manage the restricted wastes. Based on the results of the capacity analysis, EPA is finalizing its decision not to grant a national capacity variance for wastewater or nonwastewater forms of K176, K177, or K178. EPA's rationale and technical support for developing the capacity analysis for Land Disposal Restriction treatment standards for inorganic chemical production wastes are provided in this document. DOCUMENT DATE October 2001 REMOVAL DATE October 2006