Power Plant Dewaters Fly Ash Pond To Comply with EPA Regulations PUMPS • TANKS • FILTRATION • PIPE • SPILLGUARDS 800 742 7246 rainforrent.com BACKGROUND A coal fired power plant in the Midwest was capping two 10 acre ash ponds to comply with recent EPA regulations. They needed to remove the water from the ponds and dry the soil so that the remaining ash could be excavated and the ponds could be capped. Because the ash was particularly dense, wellpoint dewatering would not be effective. OUTCOME Rain for Rent recommended a French drain around the perimeter to dewater the soil. A combination of 4 and 6-inch pumps removed the water from the ponds prior to treatment and discharging. Weir tanks, sand media filters and bag filters helped meet discharge limits after the water was treated

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