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...]
Learn more about our project experience here. See photos and descriptions of the services we provided and the results that were obtained.
IAI has provided contract operation and maintenance services for the Sylvan Township Water Treatment Plant since 2010. The facility is rated to treat 0.6 MGD. The treatment process consists of four iron removal filters and three modules of Reverse Osmosis (RO) filters. IAI also operates and maintains the Township's drinking water distribution … [Read more...]
Scope of Work: IAI was contracted by the Lake Sinissippi Improvement District to design and construct an erosion control berm which would isolate a 40-acre portion of man-made Lake Sinissippi in an effort to remediate a marsh wetland environment that had been deteriorated by a non-game fish species. Summary: IAI deployed almost 800 lineal feet of 30 … [Read more...]
A former wood-treating facility had previously been located on the project site; each of two ponds contained a layer of thick, black oily sludge. The sludge was contaminated with creosote, polyaromatic hydrocarbons and metals. To remediate the ponds, the sludge was removed with utilization of a suspended pump and dewatered in geotextile tubes. IAI and … [Read more...]
IAI hydraulically dredged about 18,000 cubic yards of industrial process biosolids from two wastewater treatment lagoons, utilizing a cable-driven 8 inch diameter auger dredge. The dredged sludge was conditioned with flocculating chemicals and dewatered in about 2,400 lineal feet of 75 foot circumference geotextile tubes. The geotextile tubes were stacked in … [Read more...]