Most household and construction debris is welcome. The limits come from the Campbell County Landfill's own dumping rules.
Every load has to pass a paint filter test, which means no free liquids and no hazardous waste. The landfill also refuses pesticide containers that haven't been cleaned and crushed, drums that haven't been emptied and opened, anything containing PCBs, friable asbestos, whole vehicles, and oilfield waste. Non-friable asbestos needs a call to the landfill for instructions before it's hauled.
Tires and appliances get special treatment. The county's dumping guidelines say not to put tires, refrigerators, freezers, or AC units in dumpsters. Bring them straight to the landfill instead. Lead-acid and rechargeable batteries are accepted, but tell the clerk so they can be handled properly.
As a general rule, keep hazardous waste, liquids, paint, solvents, fuel, and asbestos out of any standard dumpster. Drain fluids from mowers and small engines before they go in.
If you have a question about an item, ask your account manager before you load it.