Adhering to these regulations, as well as good management practices, ensures that the University is operating to protect the safety and health of all members of the UNO community and to protect research, equipment, facilities and the environment.
Training services are offered by EHS and are elective. It is the responsibility of individual units to provide the necessary training, whether through EHS or a program developed by the unit itself. Learn more.
Hazardous Waste Defined
Hazardous waste is waste that is dangerous or potentially harmful to our health or the environment. Hazardous wastes can be liquids, solids, gases, or sludges. They can be discarded commercial products, like cleaning fluids or pesticides, or the by-products of manufacturing processes.
Before a material can be classified as a hazardous waste, it must first be a solid waste as defined under the Resource Conservation and Recovery Act (RCRA). Resources, including an interactive tool, are available to help.
An introduction to the Chemical Safety Manual is available online.
Hazardous Waste Classification
Environmental Health and Safety (EHS) is responsible for making hazardous waste determinations. We provide monitoring and information to help ensure environmental compliance and to help with evaluation of future experiments. EHS regulates hazardous wastes according to EPA standards. Contact EHS staff.
Types of Hazardous Waste: Hazardous waste are divided into characteristic wastes, listed wastes, universal wastes, and mixed (hazardous and radioactive) wastes. Specific procedures determine how waste is identified, classified, listed, and delisted.
The EPA has four standard lists available that are used to help determine which chemical wastes are EPA regulated and which are not.
Hazardous Waste Lists and Characteristics
Unless specifically excepted, all wastes are subject to classification according to their characteristics. Characteristics wastes are assigned a D-series hazardous waste number. The General Characteristics of Ignitibility (D001), Corrosivity (D002) and Reactivity (D003) are summarized defined here - 40 CFR Part 261 Subpart C.
Toxicity - Wastes also exhibit the characteristic of Toxicity, if using the toxicity characteristic leaching procedure (TCLP), the waste contains contaminants in excess of the limits listed in the D-List Table.
Unused Chemicals - When unused chemicals are evaluated, in addition to the Characteristics, two different lists are used to determine if they are "listed wastes." These are defined as Discarded commercial chemical products, off-specification species, container residues, and spill residues thereof.
Used Chemicals - When used chemicals are evaluated, in addition to the Characteristics, two lists are used to determine if they are regulated.
K-List (Hazardous Wastes From Specific Sources) - No K-Listed waste is currently generated at UNO.
Universal Wastes - EPA's universal waste regulations streamline hazardous waste management standards for federally designated "universal wastes," which include: