Most household and construction debris is fine in your container. Wisconsin's disposal bans and the county landfill decide what isn't.
Wisconsin has banned yard waste from landfills since 1993 and waste tires since 1995. Leaves, grass clippings, and small brush need to go to composting, and tires need a recycler. The state also keeps electronics, lead-acid batteries, major appliances, waste oil, and used oil filters out of landfills, along with common recyclables like cardboard, cans, and bottles.
Brown County handles some of these items at its own sites for a fee. Its hazardous material recovery facility takes latex paint, waste oil, antifreeze, bulbs, and electronics, charged by the pound. Waste tires and large appliances are priced separately at the landfill.
Liquids, solvents, fuel, propane tanks, and other hazardous waste don't belong in a standard dumpster. Set them aside before you load.
If you're not sure about something, ask your account manager before it goes in.