Reservoir Clean-up
Lake Decatur, in Illinois, was the sole source of drinking water for the city of Decatur. The disposal area was 2 miles from the lake with an 80-foot dredge lift. Homes were located along the shoreline of the lake, and the purity of drinking water had to be maintained during the dredging. To meet these requirements, Southwind:
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laid 11,000 feet of 18” HDPE pipe, with watertight fused joints, through a pristine wooded area and across two ditches and country roads. |
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dredged bottom sediment with a state-of-the-art hydraulic dredge. |
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controlled turbidity with variable speed cutter head and protective shield. |
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cycled slurry through a system of internal separation dikes to meet an effluent requirement of 15 ppm. |
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dredged over 2 million cubic yards to a spoil area two miles away. |
Result -- improved water quality in the lake during the dredging process, and met or exceeded NPDES requirements and the expectations of all project participants.
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