Hazardous Waste Determination

Hazardous Waste Classification

Waste is considered regulated hazardous waste if it meets any of the following:

Characteristic Waste

Waste is regulated as hazardous if it meets any of the following characteristics.

Hazardous: Ignitable

  • A liquid with a flash point less than 60 degrees Centigrade
  • A solid capable under normal conditions of causing fire through friction, absorption of moisture or spontaneous chemical changes
  • A flammable compressed gas
  • An oxidizer

Hazardous: Corrosive

  • An aqueous with pH less than or equal to 2, or greater than or equal to 12.5
  • A liquid that corrodes steel at a rate greater than 0.250 inches per year at 55 degrees Centigrade

Hazardous: Reactive

  • Is unstable and readily undergoes violent change without detonating
  • Reacts violently with water
  • Forms potentially explosive mixtures with water
  • Upon mixture with water generates toxic gases, vapors or fumes
  • Generates toxic gases, vapors or fumes at pH conditions between 2 and 12.5
  • Capable of detonation or explosive decomposition
  • Classified as a Department of Transportation explosive

Hazardous: Toxicity Characteristic

  • The waste contains certain metals, pesticides or selected organics above specified levels.  See List of Toxic Characteristic Wastes.
  • if it is otherwise capable of causing environmental or health damage if improperly disposed (this judgment is based on knowledge of the material).


Footnote:  K-list waste codes are industry specific and don't apply to university waste operations