HAZARDOUS WASTE DISPOSAL:


Hazardous Waste Pickup Requests have been moved on-line. To schedule a hazardous waste pickup, you will need to Log In using your University Id and password. When you log in, you will be taken to the "Logged in User Menu". If you are already logged in, just click the "Logged in User Menu" link at the left of this screen. On the Logged In User Menu, Click the "Request Hazardous Waste Pickup" link and follow the on-line instructions. Enter a Pickup Request.

  • Most of the fields in the header portion of the request are filled in by default with data from your user profile. Correct any entries requiring correction, fill in pickup type, the building and room number and click the "Continue" button, which will bring up a detail entry screen for the selected pickup type.
  • Individually list each chemical, biological or radiological waste item in the detail section of the form. Items will be numbered automatically. You can use the chemical name assistant to help you with chemical item entry. If there are multiple chemicals mixed together in a solution, enter each chemical in the solution with its percentage of total solution. You can use the "%" button to assist in entering percentages. Separate chemicals in a solution with the "&" key. Enter chemical state, type of container, the quantity, and whether or not the chemical requires special handling. Click "Submit" for each line item, then click "Add" if there are additional line items to enter. Click "Finished" when the form is complete.
  • All hazardous waste containers must be appropriately labeled with their contents and starting date of accumulation. For your convenience, EH&S provides adhesive labels. All waste containers must be labeled and must be kept completely closed at all times, except when adding waste. Never leave a container open, or leave a funnel in a container.
  • All items for disposal must be entered in the "Request for Pickup" form. All items for pickup must be labeled as "HAZARDOUS WASTE", and contents must be listed. Items that have not been entered on the "Pickup Request", or are not correctly labeled will not be picked up!!
  • View up to date instructions for storing and disposing of hazardous waste. Feel free to call Environmental Health and Safety at 575-5448 with questions or to request assistance.

Leaving hazardous materials outside the 90 day storage site without notification or authorization is DANGEROUS and ILLEGAL! If you have material to dispose of, and you are unsure of the procedures to follow, call EH&S at 575-5448.


Empty Hazardous Waste Container Disposal: Containers may be disposed of according to these guidelines, if and only if they are completely empty. Otherwise, they must be treated and disposed of as hazardous waste. Please remember that although chemical residues may be non-hazardous by themselves, there is a possibility that they can mix with incompatible residues in a trash can or dumpster and cause a fire. In addition, sealed containers may become pressurized during compaction, which could result in residues spraying from the truck onto workers. A container is considered empty when the following conditions are met:

  • Liquid hazardous material containers:
    • No liquid can drain from the container when it is tilted in any direction.
    • There is no hazardous material remaining that can feasibly be removed.
    • The walls have no encrusted material on them.
  • Solid or non-pourable hazardous material containers (powders, sludge, grease, and thick resins):
    • The interior surface is scraped clean, with no residual material.
  • Aerosol containers:
    • The contents and pressure are completely dispensed.
    • The spray mechanism is in place and functional.

Directions: Check to see if the material previously contained or any of its ingredients is on the list of List of Acutely Hazardous Wastes or "P List" and if the MSDS sheet for the previously contained chemical has instructions for disposing of the empty container. If the material or any of its ingredients appear on the “P List”, or the MSDS specifies triple rinsing the empty container, you can either:

  • Treat and dispose of the empty container as hazardous waste, or
  • Triple rinse the container with an appropriate solvent, then collect and dispose of the rinsate as hazardous waste.

If none of the component materials appears on the P List and the MSDS does not contain special instructions for disposing of the empty container, you can either:

  • Rinse the container once with approximately 50 ml of water (or an appropriate solvent for substances not miscible in water) and collect the rinsate in a container suitable for disposal as hazardous waste, or
  • Remove the cap from the container and place both in the fume hood to dry.
  • For volatile organic solvents (e.g. acetone, ethanol, ethyl acetate, ethyl ether, hexane, methanol, methylene chloride, petroleum ether, toluene, xylene, etc.) the emptied container can be air-dried in a ventilated area such as a chemical fume hood without triple rinsing.

Deface or remove the label of the empty container. Remove any cap that may cause the container to become pressurized when compacting. Dispose of the container in the dumpster. Do not throw the containers in regular trash bins.

If the container does not qualify as empty and cannot be emptied into a compatible hazardous waste receptacle, then the container and its contents must be labeled and treated as hazardous waste.