The Environmental Protection Agency (also, "EPA" or "the Agency" or "we") in this preamble is granting a petition submitted by General Electric (GE), King of Prussia, Pennsylvania, to exclude (or delist), on a one-time basis, certain solid wastes that have been deposited and/or accumulated in two on-site drying beds and two on-site basins at GE's RCA del Caribe facility in Barceloneta, Puerto Rico from the lists of hazardous wastes contained in the regulations. These drying beds and basins were used exclusively for disposal of its chemical etching wastewater treatment plant (WWTP) sludge. This action is specific to the RCA del Caribe site, bears no precedential effect on other delistings and conditionally excludes the petitioned waste from the list of hazardous wastes only if the waste is disposed of in a Subtitle D landfill which is permitted, licensed, or registered by a State or Commonwealth to manage industrial solid waste. The exclusion was proposed on March 19, 2004.