Sediment Remediation at the Unnamed Tributary to the Ottawa River
A sediment removal action was conducted in the Unnamed Tributary to the Ottawa River to address sediments containing polychlorinated biphenyls(PCBs) at concentrations up to 74,000 mg/kg....
Application of the NRC Framework for Evaluation of Remedial Actions at a PCB Contaminated Sediment Site
The National Research Council recently proposed that the framework of the Presidents/Congressional Commission on Risk Assessment and Risk Management be applied to the selection and implementation...
Consolidated Effort
Engineers remedied a landfill polluted with polychlorinated biphenyls by removing the most contaminated detritus and consolidating the rest under a multilayered, impermeable cap....
Evaluating Remedial Alternatives for Coastal Wetlands in New Bedford Harbor
The Acushnet River estuary in upper New Bedford Harbor is highly contaminated with polychlorinated biphenyls (PCBs) and metals. Portions of the industrialized estuary are bordered by wetlands,...
Use of Floodplain PCB Concentrations to Calibrate a River Hydraulics Model
A river floodplain was found to contain measurable quantities of polychlorinated biphenyls (PCBs), presumably deposited during historic flood events. A hydraulic model (HEC-2) was used...
Risk Management in the Transportation of Dangerous Goods?The Influence of Public Perception A Discussion
In 1988, a fire at Saint-Basile-le-Grand, Quebec involving a PCB (polychlorinated biphenyls) warehouse sparked continuing controversy which included a two-week evacuation of residents....
Fate of PCBs in Municipal-Sludge Amended Soil
This paper presents the preliminary results of a five-year field study of the fate of PCBs in soil that has been amended with municipal sewage sludge. A first-order model describes the...
Volatilization of PCBs From the Great Lakes
The potential volatilization of polychlorobiphenyls (PCBs) and other semi-volatile organic chemicals (SOCs) from Lake Superior and Green Bay, Lake Michigan, is being investigated. The...
Long-Term Fate of PCB Contamination in the New Bedford Harbor, Massachusetts, System
The transport and fate of polychlorinated biphenyls (PCBs) at the New Bedford Harbor Superfund site is modeled using a three-dimensional hydrodynamics and sediment-contaminant transport...
The Dredging Dilemma
Disposal of dredge materials is becoming a national environmental problem. Disposal sites on land are becoming extremely scarce and environmental objections growing. There are also objections...
A Practical Approach for Evaluating Environmental Risk
Risk management and assessment techniques are increasingly being used to project public health risks at hazardous wastes sites. Few studies have quantitatively evaluated the environmental...
Ft. Huachuca, AZ Fire Site Hazardous Waste Remedial Action
The paper discusses an investigation of the site of a major fire at Ft. Huachuca, Arizona. All of the fire debris contained asbestos. The sampling results confirmed that PCB levels of...
The Distribution of PCB Contaminated Sediment in the Kalamazoo River Valley, Michigan
Heightened environmental awareness beginning in the 1970s focused upon lowering contaminant levels in the Kalamazoo River system through the improvement of water quality. The Michigan...
On-Site Containment of PCB-Contaminated Soils
A remedial investigation/design project, with subsequent post-closure monitoring, was conducted for upland areas containing PCBs at an industrial site in New Bedford, Massachusetts. A...
PCB Contaminated Sediments from Petit-de-Grat, Canada
In Canada, ocean disposal of dredged materials is regulated by the Ocean Dumping Control Act. Included within the schedules of regulated substances are organochlorine compounds, such as...
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