Onondaga Lake has undergone a massive remediation effort, involving the removal of 2.2 million cubic yards of contaminated sediment. The contaminated mud was dewatered in geotextile tubes, over a three year period, from 2012 - 2014. IAI was responsible for operations and maintenance management of the sediment dewatering system, including screening, … [Read more...]
Sediment Remediation
IAI has provided environmental dredging, geotextile tube dewatering, water treatment, and general contracting services for contaminated sediment remediation projects throughout the Great Lakes region and eastern U.S. Below are examples of our clean up project experience.
East Branch Grand Calumet River Remedial Action
This remedial action project utilized hydraulic dredging to remove 145,377 cubic yards of contaminated sediment from the Grand Calumet River. IAI was responsible for the sediment dewatering and water treatment portions of work. The sediment dewatering pad was installed over a brownfield site in East Chicago, where the contaminated sediment was … [Read more...]
River Raisin PCB Dredging Water Treatment
IAI provided water treatment services for the River Raisin PCB Dredging project. The overall project involved hotspot mechanical dredging of sediment containing concentrations of polychlorinated biphenyls (PCBs) in excess of the 50 mg/kg limit regulated by the Toxic Substances Control Act (TSCA) from deposits adjacent to the U.S. Army Corps of Engineers … [Read more...]
Ottawa River Remediation
IAI was the General Contractor for all landside operations on the Ottawa River Remediation Project, which was conducted over the course of the 2010 construction and dredging seasons. The project involved hydraulic dredging of 242,000 cubic yards of contaminated sediment from the Ottawa River near Toledo, Ohio. The dredged sediment was pumped by the … [Read more...]
Borrow Pit Remediation
Summary During this project, 14,000 cubic yards of contaminated sediment was hydraulically dredged from a former borrow pit and dewatered in geotextile tubes. An existing asphalt parking lot was converted into a geotextile tube laydown area with the installation of temporary sand berms and a high density polyethylene (HDPE) liner. Eighty foot … [Read more...]
