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EPA Regulated Chemical Wastes

At UNO, only Environmental Health and Safety makes Hazardous Waste determinations. This information is provided to help ensure environmental compliance and to help with evaluation of future experiments.

Hazardous wastes are regulated according to EPA standards. Four classes of characteristics (Ignitibility, Corrosivity, Reactivity, and Toxicity) and four different standard lists are used to help determine which chemical wastes are EPA regulated and which are not.

All wastes (unless specifically excepted) are subjec 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 in the link below (see 40 CFR Part 261 Subpart C for full definition):

General Characteristics

Additionally, wastes 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 table commony known as the D-List.

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. These lists are the:

• U-List (Toxics) and
  

• P-List (Acutely Toxics)

When USED chemicals are evaluated, in addition to the Characteristics, two lists are used to determine if they are regulated. These include the:

• F-List (Hazardous Wastes From Non-Specific Sources) and
  

• K-List (Hazardous Wastes From Specific Sources) - No K-Listed waste is currently generated at UNO.

Contact EHS at 4-3921 for additonal information.