The following case reports illustrate the hazard of inadequate disposal of hazardous substances. In addition, at a single point of generation (laboratory or maintenance workshop) there cannot be more than 55 gallons of hazardous waste (the cumulative total of all waste in an area) and only one quarter of a gallon of extremely hazardous waste. As with Universal Waste, hazardous waste regulations also have a special set of requirements for used oil. For more information on requirements related to this topic, visit the EPA web page on the transportation of hazardous waste.
All other bottles of more than 0.05 microcuries per milliliter of those three nuclides will be disposed of through the Office of Radiological Safety. Types of waste that are often hazardous include cleaning solvents, used acids and bases, metal finishing residues, paint residues, sludge from air and water pollution control units, and many other discarded materials. The last four hazard codes apply to waste that has been included in the list because, in general, it has one of the four regulatory characteristics of hazardous waste. Once generators produce hazardous waste, transporters can move the waste to a facility that can recycle, treat, store or dispose of it.
In addition, generators must ensure and thoroughly document that the hazardous waste they produce is properly identified, managed and treated before recycling or disposal. The second step of this process examines whether the waste is specifically excluded from regulation as solid or hazardous waste. List K identifies hazardous waste from specific sectors of industry and manufacturing and is considered waste of specific origin. For information on the disposal of potentially infectious waste, see the Potentially Infectious Waste Policy.
To qualify as hazardous waste included in List K, a waste must fit into one of the 13 categories on the list and must match one of the detailed descriptions of waste in List K in 40 CFR section 261.32.