Lower Fox River Restoration, Wisconsin

Foth was retained by a consortium of companies to develop remedial design plans for PCB contaminated
sediments in Little Lake Butte des Morts at the head of the Lower Fox River. The site includes deposits A/B covering approximately 50 acres in Little Lake Butte des Morts.

Challenges:

• Characterization and qualification of PCB contaminated sediments.
• Designing a sediment processing/material staging area limited by land use and access constraints.
• Developing a dredging and capping plan capable of implementation in shallow water depths.
• Designing a cost-effective sediment remediation project.

Benefits:

• Development of an accurate dredge prism through sediment characterization, lessens uncertainty and thereby minimizes project implementation costs.
• Locating a sediment processing/material staging area adjacent to the sediment deposits will mini-mize hauling/pipeline distances, and reduce the cost of land acquisition or lease.
• Development of project construction specifications focused on achieving a cost-effective sediment
  remediation project.