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1 Introduction
Pages 16-22

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From page 16...
... The chemicals of concern in contaminated sediment sites vary; polychlorinated biphenyls (PCBs) are the most common, followed by metals, and polycyclic aromatic hydrocarbons (EPA 2005)
From page 17...
... , capping or covering contaminated sediments with clean material, and relying on natural processes while monitoring the sediments to ensure that contaminant exposures are decreasing, or at least not increasing (known as monitored natural recovery [MNR]
From page 18...
... Whether to dredge contaminated sediments has proved to be one of the most controversial aspects of decision-making at sediment remediation sites. THE CHARGE TO THE COMMITTEE ON SEDIMENT DREDGING AT SUPERFUND MEGASITES This study was requested in the fiscal year 2006 appropriations bill for the Department of Interior, environment, and related agencies.
From page 19...
... . However, the report does not develop specific procedures and recommendations for performing comparative risk analyses in selection of a sediment remedy.
From page 20...
... The fourth and fifth meetings, held in September and October 2006 in Washington, DC, were closed, deliberative sessions attended only by committee members and staff. REPORT ORGANIZATION Chapter 2 provides background on sediment management at Superfund megasites; it includes discussion of the concept of reducing
From page 21...
... Chapter 4 evaluates remedy performance and risk reduction on the basis of sites' pre-dredging and post-dredging monitoring data and evaluates factors that affected performance. Chapter 5 looks at current practices for monitoring effectiveness at sediment remediation sites and considers the types of assessments and protocols that are needed to improve monitoring.
From page 22...
... 2001. A Risk-Management Strategy for PCB Contaminated Sediments.


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