Put only waste soil and plants for composting into the large blue toters that are available in B123, in the penthouse head-house and outside the elevator on the penthouse level. Do not confuse these with the blue toters for paper.
All plant potting must be done in the head house in ESC or RW or in ESC B121. Do not do your potting in the labs.
DO NOT PUT SOIL IN ANY SINK to prevent clogging the drains.