Most building and household debris is accepted. The limits come from the city landfill's own permit and from a mixed-load rule that is stricter here than almost anywhere.
Out entirely under the landfill's permit: lead, PCBs, soluble wastes, manure, septic tank pumpings, infectious wastes, liquids, hazardous wastes, electronics and mercury-containing devices. Paint, solvents and fuel fall inside that line and belong at the household hazardous waste facility.
Two refusals catch people on demolition work. The landfill does not accept concrete, tree stumps or roots. A broken driveway or a stump pile needs a separate route, and your account manager will arrange it rather than letting a load get turned away at the scale.
The mixed-load rule is the one to plan around. Debris mixed with any kind of recyclable, meaning metal, cardboard, trees or pallets, may be rejected until the recyclable material has been taken out. On a job producing scrap steel or a mountain of cardboard, separate containers are not a nicety, they are what keeps the load moving.
Yard waste has to go to a compost or recycling site instead of the landfill, and Freon and refrigerant appliances are not accepted at all. Tires are accepted for a charge rather than refused.
If an item is not clearly on one side of that line, ask before it goes in. A rejected container costs a day.