Every load has to be one clean material. Concrete, or asphalt, or brick and pavers. Not two of them together, and nothing else mixed through it.
This is not us being fussy. Clean, single-material loads go to a recycling facility, where the material gets crushed and used again. That is what keeps our disposal cost down, and it is the whole reason we can charge $350 plus tax for something this heavy. The moment a load has dirt, trash, or wood mixed into it, it stops being recyclable material and has to be handled a completely different way.
So the rule is simple. Keep it to one material and keep it clean.
What clean actually means
Dirt still stuck to the bottom of a slab is completely fine. So is rebar set in the concrete, or mortar still on a brick. Nobody expects you to pressure wash a driveway before it goes in the dumpster.
What we cannot take is a load of concrete and dirt, or brick with the bedding sand shoveled in on top, or a few bags of household trash thrown on at the end. If you are unsure about something, tell us what you are loading when you book and we will give you a straight answer before anything is delivered.