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<br />If you generate between 220 and 2,200 pounds of hazardous waste <br />per calendar month, you are subject to small quantity generator <br />provisions requiring the use of a Uniform Hazardous Waste Manifest <br />when you ship hazardous wastes off your premises. Item 11 of the <br />Manifest (Appendix - Part E) requires the Department of Transporation <br />(DOT) shipping description, which includes the proper DOT shipping <br />name, hazard class, and UN/NA identification number. <br /> <br />The following table provides some examples of typical laboratory <br />wastes and their DOT descriptions. In the case of waste mixtures, <br />general waste classifications [e.g., Flanunable Liquid, Not Otherwise <br />Specified (NOS)] may be appropriate. Some of these general <br />classifications are included in the table as well. Where the shipping <br />name of a mixture or solution does not identify the constituents <br />making it hazardous, the name(s) of the hazardous constituents should <br />be included in parentheses after the shipping name. <br /> <br />Radioactive wastes, generated by some labs, are generally <br />regulated under the Atomic Energy Act and therefore excluded from <br />regulation under RCRA. Nuclear Regulatory Commission and DOT <br />regulations, however, may apply; contact the Nuclear Regulatory <br />Colnmission, the DOT Materials Transport Bureau, or your state <br />transportation agency for more information concerning proper transport <br />and disDosal of thesè wastes. <br />.. <br /> <br />If you are not sure whether your wastes are hazardous or if you <br />need guidance on determining the proper DOT description, please <br />contact the Texas Water Commission, EPA Regional Office, or trade <br />association for assistance. <br /> <br />WASTE DISPOSAL METHODS <br /> <br />Most <br />hazardous <br />quantities <br />frequently <br />individual <br />Other waste <br /> <br />laboratories dispose of wastes off-site in an authorized <br />waste landfill. Because laboratories often generate small <br />of a number of hazardous wastes, these wastes are <br />sent to landfills in -lab-packs,. which consist of <br />containers packed in vermiculite in a 55-gallon drum. <br />management options include: <br /> <br />Waste reduction, or minimizing of the amount of waste <br />must be treated or disposed of. <br /> <br />that <br /> <br />Thermal treatment in a hig-temperature incinerator. <br /> <br />Chemical, physical, or biological treatment (e.g., <br />solidification, neutralization, ion exchange, oxidation, or <br />precipitation) . <br /> <br />-56- <br />