Chemical Waste Disposal
Waste tags are available through Science Stores (Science Hall), Central Receiving (Scott Hall) or through OEH&S.
Hazardous chemicals should never be dumped down the drain!
OEH&S provides free chemical waste removal services for all WSU research facilities. Follow these rules:
Use proper containers
- Store liquid wastes in containers that originally held liquids and solids in containers that held solids.
- Make sure that all bottles are in good condition and have original cap.
- Collect organic wastes in empty organic solvent containers.
- Collect inorganic (acid/base) wastes in empty inorganic containers.
- Secure lids tightly and store waste under a fume hood, in a flammable cabinet or on shelves.
- Do not store bottles on the floor or in the hallway! Place containers in secondary containers.
Free 5 gallon carboys are available through OEH&S.
Segregate wastes properly
Whenever possible, keep different hazardous wastes separate so that disposal options are clearer and more cost effective. If this isn’t possible, collect waste in compatible containers segregated into these categories:
- Halogenated solvents (i.e. methylene chloride, chloroform, carbon tetrachloride)
- Non-halogenated solvents (i.e. xylene, toluene, acetone, alcohols)
- Heavy Metals
- Special Wastes: collect separately (i.e. cyanide, sulfide, oxidizers, organic acids, explosives, peroxides)
- Waste Oil: whenever possible do not mix with solvents, PCB’s, etc.
Label wastes correctly and completely
- Date & attach tags to bottle as soon as you begin to collect waste.
- Write the complete name of each chemical on the tag. NO FORMULAS OR ABBREVIATIONS!
- Make sure each tag is completely filled out before waste is picked up.
OEH&S staff may refuse to collect waste that has been improperly collected/labeled or stored.