Consult with your advisor to establish the best location for your laboratory. The University EH and S Office makes regular pickups in Aubert. Simply make a notation on the form in the mailroom that you have waste to be picked up. Then fill out a disposal form and place it with the waste. The easiest way of all to deal with waste regulation is to get the waste out of the laboratory as quickly as possible.
Unidentified substances present a major problem for both storage and disposal.
Unknowns can be removed by the EH and S staff, but their disposal by the firm with which the University contracts is expensive. Do a thorough cleanup of your laboratory, and dispose of all unknowns at one time. Subsequently follow the storage and labeling practices described above to ensure that no unknowns are generated in future. Keep chemical storage in the laboratoy to a minimum. Oder only what you need, and dispose of any residue promptly.