Currently ongoing, this contract was awarded through the EPA Remediation Environmental Services (RES) Suite of the Remedial Acquisition Framework for the remediation of the Burnt Fly Bog Superfund Site, Westerly Wetlands OU3 in New Jersey.
Located in Monmouth County, New Jersey, the Burnt Fly Bog Westerly Westland OU3 area consists of approximately 60 acres of wetlands contaminated with lead, polychlorinated biphenyl (PCB), and total petroleum hydrocarbon (TPH).
Contamination of the site took place during the 1950s and 1960s from the nearby Imperial Oil Company and Champion Chemical facility. Hazardous materials from recycled waste oil operations were directly dumped, resulting in surface water and soil contamination.
The scope to this project has multiple objectives including addressing the remedial action objectives (RAOs) as defined by the Record of Decision to:
In 2012, Conti Federal conducted remediation efforts at Imperial Oil, with a large-scale soil excavation and groundwater remediation including hydraulic containment of the site and large-scale load out and disposal of 180,000 cubic yards of excavated material. The work on the Imperial Oil site, which earned Project of the Year in the Industrial/Manufacturing category for the New York region from Engineering News-Record, provides the Conti Federal team with extensive experience in understanding and remediating this specific geographic area and its unique attributes.
Conti Federal’s proposed and accepted solution includes remediating the sediment contamination at the Westerly Wetlands. In accordance with EPA-approved 2020 In Situ Soil Amendment Treatability Pilot Study (ISSA-TPS), the remedy consists of two applications of Apatite II amendment, mixing it into the sediment, and covering the amendment with degradable netting to ensure it remains in place. The treatment areas include two “hot spots,” one in the center of the Westerly Wetlands and the second in the eastern area towards the Uplands capped portion of the site.
The selected remedy expects that a layer of organic detritus (known as “humification”), will accumulate over time, forming an increasingly natural protective barrier over the contaminated soil and be monitored over time. The selected remedy will also preserve the existing wetland system while monitoring the surface water and sediment conditions in Burnt Fly Brook to ensure that on-site contamination does not reach the Brook.