Concrete washout is a designed structure in a designated area of a construction site, where all slurry concrete is washed and removed from construction equipment. Concrete washout prevents slurry concrete from leaving construction sites, thus preventing stormwater pollution.
Stormwater Best Management Practice Concrete Washout, United State Environmental Protection Agency.
Concrete Washout Area, Urban Drainage and Flood Control District, Denver Colorado
Concrete Waste Management, Caltrans California
Concrete Waste Management, Idaho Transportation Department