Ordinary construction and household debris is what these containers are sized for.
Nothing hazardous is off limits more clearly than this: no liquids, paint, solvents, fuel or asbestos in a standard container, and tires need their own handling. Appliances and electronics should be named at booking.
Wisconsin's recycling law bans landfilling or incinerating a long list of recyclable and compostable items, and those bans apply everywhere in the state, in homes, businesses, schools, institutions and at events alike. They are not limited to a particular county or a particular facility, which is worth knowing because it means separating recyclables is a legal requirement rather than a courtesy.
Burning is the other local point, and it catches people on a demolition job. It is illegal to burn construction and demolition materials in Wisconsin, with few exceptions, and the state specifically prohibits burning painted or treated wood, asphalt, plastics, oily substances, rubber products and wet debris. It is also illegal to burn an unwanted building. The only exception is an approved fire department practice burn of a structure that has first been inspected for asbestos. Your account manager will set out what needs keeping separate on your site.