› › Disposal Alternatives For Pcb Contaminated Sediments From Indiana Harbor Indiana Volume I














Environmental Effects of Dredging: PCB Volatilization from Dredged Material, Indiana Harbor, Indiana

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Page : 11 pages

File Size : 15,32 MB

Release : 1990

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Book Description

This note summarizes the theory and application of a model to predict the mass loss of polychlorinated biphenyls (PCBs) from dredged material through volatilization. A comparison to other contaminant pathways is presented for both in-lake and upland disposal. Background Contaminated sediments placed in a confined disposal facility (CDF) provide the potential for volatile organic chemicals (VOCs) to be released through volatilization. Theoretical models have been developed to describe the physical and chemical processes involved in transferring the VOC from the solid or liquid phase to the air (Thibodeaux 1989). To date, PCBs have been the VOC of concern; however, the theory presented is applicable to other VOCs including polycyclic aromatic hydrocarbons (PAHs). The documentation provided is not sufficient to fully understand the development of the models described in this note. The user should refer to the original reports, for complete understanding of model development and limitations. jg.





Evaluation of Dredged Material Disposal Alternatives for US Navy Homeport at Everett, Washington

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Page : 364 pages

File Size : 33,76 MB

Release : 1989

Category : Dredging spoil

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Book Description

The US Navy has proposed to homeport a carrier battle group at Everett, Wash. Development of the homeport will involve dredging and disposal of approximately 1 million cu yd of contaminated native material. The US Army Engineer District, Seattle, is providing technical assistance in developing a dredging and disposal plan for these sediments from the East Waterway. In addition, the Seattle District is a permitting agency under Section 10 of the River and Harbor Act of 1899 and Section 404 of the Clean Water Act. The purpose of the WES studies was to evaluate the feasibility of alternatives from an environmental and related engineering standpoint. Three major disposal alternatives were evaluated for disposal of the contaminated sediment: confined upland, confined nearshore, and contained aquatic disposal (CAD). The Navy identified CAD as a preferred alternative during the course of the WES study, and also as the selected alternative in all applications for a Section 404 permit. Keywords: Capping; Confined disposal; Contaminants. (AW).