Sand and Gravel Mining
EDDY Pump conducted a demonstration at the Cresta Reservoir where approximately 7,833 cubic meters of a sand/gravel sediment near the Cresta Dam were to be pumped and returned to the reservoir bottom 600 meters upstream. It was concluded that the dredge performance exceeded the manufacturer's production specifications and easily complied with restrictive water quality standards. Slurry densities greater than 70 percent solids by weight were sustained, while peaks over 90 percent were achieved. Production rates of over 230 cubic meters per hour were observed. This demonstration showed that the Eddy Pump provides an environmentally superior pumping method to meet strict water quality standards and pump dense slurries at long distances.
