Office of Environmental Health and Safety

Student in Lab

Chemical Waste

The person generating the waste is ultimately responsible for the waste he or she produces. Below are general policies regarding hazardous waste accumulation and management:

Satellite Accumulation Area (SAA)

bottles of hazardous waste Every area where chemical waste is produced and accumulated until the waste containers are full is called a Satellite Accumulation Area (SAA). Here are the rules to be followed for its management:

  • Waste being generated elsewhere should not be kept in this area.
  • If the area accumulates acutely hazardous waste, one quart is the maximum amount allowed to be accumulated. If not acutely hazardous, 55 gallons of waste is the limit.
  • The SAA must be located in a dry and cool location away from direct sunlight.
  • The SAA must have a sign with the words "Hazardous Waste Satellite Accumulation Area."
  • Waste must be kept inside a dishwashing pan, basin or tub to prevent spills.
  • Waste must be segregated from incompatible chemicals.

Waste Containers

container with label
  • Use only one container per waste stream.
  • The container must be compatible with the waste inside and free from cracks, leaks, corrosion or any sign of degradation.
  • The container must be clean on the outside.
  • Never overfill a waste container. A container filled to 80% of its capacity is considered full.
  • Recycled containers must have the original label defaced to avoid confusion regarding contents.
  • The container holding hazardous waste must be closed with a screw cap at ALL TIMES except when waste is being added.

Note: Disposal cost is based on waste type and container size, not amount of waste. Please choose a container that fits the quantity or volume and, when possible, combine compatible waste.

Waste Labels

  • Give FULL NAME of contents, no abbreviations, codes, or omission of any of the information on the label is allowed.
  • The container holding the hazardous waste must be marked with the words "Hazardous Waste", and must list components and their percentages(Must equal 100%). Also, check the type of hazard (Ignitable, corrosive, reactive or toxic).
  • Date container once it is full.

Example of a hazardous waste label

What to do with a full container of waste

A full container of waste must be brought to the Main Accumulation Area (MAA) within 72 hours. Once your container is 80% full, bring it to the chemical stockroom (Room S-310). If your SAA is not in the Science area use this online form to request a pickup.