No liquid or hazardous waste. No tires. No rocks, brick or dirt. Minimal construction debris is aloud unless the material safely fits inside the dumpster. Large bulky items that can get wedged into the dumpster are also not aloud - such as mattresses, couches and large tree branches.  It is possible to put these larger items into your front-load dumpster so long as they are cut down to size and safely fit inside the container without sticking over the top. If you have questions, please ask.