The Ashtabula River Remediation was the largest project to be funded through the Great Lakes Legacy Act (GLLA) at the time of performance. The project was executed in two phases by a team of contractors, working over three dredging seasons. At project close, approximately 640,000 cubic yards of contaminated soft sediments had been removed from the lower … [Read more...]
West Branch Grand Calumet River Remedial Action
The West Branch Grand Calumet River and Roxana Marsh Reaches 1 & 2 Remedial Action Project involves hydraulic dredging to remove contaminated sediment, geotextile tube dewatering of the dredged material, bulking and removal of the dewatered sediment from the site, and treatment of the geotextile tube weep water. IAI is responsible for the sediment … [Read more...]
Creosote Contaminated Pond Cleanup
IAI was contracted to remediate two ponds at the site of this former wood-treating facility. The ponds contained a layer of thick, black oily sludge, contaminated with creosote, polyaromatic hydrocarbons and metals, which had to be removed. To remediate the ponds, IAI removed the oily sludge with a submersible pump, and dewatered the slurry in geotextile … [Read more...]
