Pizzo & Associates, Ltd. is the Restoration/Remediation sub-contractor within a team of contractors for the Grand Calumet River Cleanup which is being overseen by the U.S.E.P.A., U.S. Fish and Wildlife Service and the Indiana Departments of Environmental Management and Natural Resources Division. Roxana Marsh is Phase II of the project located along the West Branch of the Grand Calumet in Northwest Indiana. The entire $31.1 MM project is being funded under the Great Lakes Legacy Act signed by the U.S. Government. Both phases are listed by the U.S.E.P.A. as an Area of Concern (AOC) and are located in one of the most industrialized areas in the country. Additionally, these areas are home to some of the most diverse native plant and animal communities in the Great Lake Basin.
The Prime Contractor is responsible for dredging approximately one mile of the river to replace 82,000 cubic yards or polluted sediment containing PCBs, PAHs, heavy metals, and pesticides followed with the placement of a clay/sand cap over the dredged area. Other contractors are involved with the de-watering and disposal of the contaminated sediment, water and air quality monitoring, and terrestrial excavation within Roxana Marsh.
Pizzo & Associates, Ltd. will be performing the invasive species control, clearing, extensive wetland restoration & remediation, along with one year of maintenance after which the Indiana DNR will take over management of the site. Weedy and non-native clearing began in September to prepare Roxana Marsh for 20 Acres of excavation. During winter excavation of the marsh a large open water habitat will be created within the marsh to create a diversity of ecosystems. Over 600 feet of existing stream bank will be preserved and stabilized using bio-engineering methods. Native trees, shrubs, and plugs will be installed following the native seeding of existing wetland areas and the 20 Acre marsh. Following the seeding and planting to be completed during the summer of 2012, Pizzo & Associates, Ltd. will maintain the newly established native areas by controlling invasive species from germinating before handing management over to the DNR.