Abstract: A system for the containment and removal of the residue derived from the cleaning of concrete pumps, pump hoses, concrete ready mix delivery trucks and similar materials and equipment located at construction sites, to a recycle center or dumpsite. The system may consist of a roll-off style container or a mobile trailer unit with an enlarged watertight back door or tailgate. The container will incorporate a steel non-slip grating for operators to walk on and folding ramps that can be incorporated on the sides of the grating. An alternate embodiment of the front wall will have a unique weir and gutter to direct the overflow water and scum into a filtration reservoir.