Most remodeling and cleanout debris is welcome. The limits come from California's disposal rules and from what the county will accept at the gate.
Hazardous material stays out. That covers paint, solvents, fuel, used oil, pool chemicals, and anything corrosive or flammable. Liquids in any form are refused, and so are sealed containers, hot ashes, and medical waste including sharps. Televisions, monitors, and other screens with picture tubes need to go to an electronics drop-off instead.
Anything with mercury or lead in it is also refused, including household batteries, fluorescent tubes, thermostats, and thermometers. A refrigerator has to have its refrigerant removed first.
The county adds two limits that catch contractors out. Nothing longer than ten feet can go to a county landfill, and nothing longer than four feet can go to a transfer station, so long pipe and full sheets of plywood need cutting down. Tires are capped at nine per load and carry their own fee. The county also publishes its full accepted waste list if you want to check an odd item.
Demolition waste from a building put up before 1984 needs asbestos certification before any county site will take it. If your project is a teardown of an older house, tell your account manager early so the paperwork is ready.