The Cedar Creek OU2A environmental dredging project was conducted to clean up PCBs-contaminated marine sediments from Cedar Creek, in Cedarburg, Wisconsin. IAI was a member of a team of contractors, who were selected to perform this Remedial Action project, after submitting an alternate proposal for high production hydraulic dredging to geotextile … [Read more...]
PCBs Remediation
The most common sediment contaminant that IAI has encountered in our sediment remediation and environmental dredging projects is polychlorinated biphenyls or PCBs. PCBs may also be referred to as Arcolors, the historical trade name of this group of synthetic chemicals. Below is a list of projects where IAI has performed remediation work, and PCBs were a contaminant of concern.
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...]
Conner Creek CSO Dredging Project
IAI dredged 180,000 cubic yards of in-situ material from Conner Creek to create capacity for a new combined sewage overflow treatment facility. The project involved the removal of approximately 100,000 cubic yards of contaminated sediments utilizing an 8 inch diameter swinging ladder dredge and an 8 inch diameter auger dredge. A specially designed header … [Read more...]
