SET worked with a major natural gas provider to solve the problem of their filled settling ponds. These ponds contained 4 million gallons of water, silt and gypsum sludge – gypsum being a by-product of the pollution control system at this power-generating facility.

SET mobilized a floating auger dredge to pump the material more than 2,000 feet to a drying spoil area created on-site, and employed a long-arm excavator to manually dig out the hard-to-reach material. The rinse and drying area allowed SET to provide the natural gas provider with clean, dry, recyclable gypsum that they were able to recycle and sell to a manufacturer of dry wall.