Evaluating the Water Quality Significance of Dredged Sediments

by G. Fred Lee, New Jersey Inst of Technology, Dep, of Civil & Environmental, Engineering, Newark, NJ, USA,
R. Anne Jones, New Jersey Inst of Technology, Dep, of Civil & Environmental, Engineering, Newark, NJ, USA,



Document Type: Proceeding Paper

Part of: Dredging and Dredged Material Disposal

Abstract:

In the mid-1970s, the Corps of Engineers and the US EPA developed several laboratory evaluation procedures, the elutriate test, bioassay/toxicity tests, and bioconcentration tests, to aid in the evaluation of the potential water quality significance of chemical contaminants associated with dredged sediment. These tests were designed to estimate the release of contaminants from dredged sediments to the water column, the toxicity of the sediment-associated contaminants to aquatic life, and the potential for bioconcentration of contaminants associated with the sediments by organisms in contact with the sediments. While these evaluation procedures were developed almost ten years ago, there are still significant problems with the way they are being used. This paper presents a summary of the work done by the authors on the water quality significance of chemical contaminants associated with dredged sediments.

Subject Headings: Water quality | Sediment | Pollutants | Dredged materials | Water resources | Water pollution | Dredging

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