After rain, areas with exposed soil in construction sites undergo changes. The soil is transformed into mud and the great movement of machines and trucks transports this material to several points, including the surroundings of the work site.
To minimize disturbances, at construction sites, Rio Verde uses a device known as Lava Rodas (Wheel Washer), an area with a concrete bottom and effluent treatment, by means of a sand and oil separation container. The system has a reservoir that reuses water after treatment. Thus, there is a closed cycle with a reduced volume of drinking water or reused water from other systems being used to make up for losses.
In a construction sites with three towers, for example, an average of 20 trucks per day use a volume of approximately 4,000 liters of reuse water for tire cleaning.