Separation fails where the hand-off happens
A waste room can be perfectly organised and the building can still have poor separation, because the sorting decision is made earlier. A kitchen hand carrying two bags to a corridor collection point at the end of a shift will put them wherever there is space. If the streams are not obviously distinguishable at that spot, the material is mixed before it ever reaches the room.
Fixing it means treating the presentation point as the control. Clearly distinguishable containers, adequate capacity for the busiest period, and enough space that a person is not choosing between blocking a corridor and using the wrong bin. Those are building and tenancy decisions, but a cleaning plan that identifies them saves considerable effort downstream. Recording those observations in the walkthrough report gives building management a costed set of options rather than a recurring condition complaint.
