Accession Number : ADA292704

Title :   Environmental Effects of Dredging: A Preliminary Evaluation of Contaminant Release at the Point of Dredging.

Descriptive Note : Technical notes,

Corporate Author : ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL LAB

Personal Author(s) : Havis, Robert N. ; Amande, Roger A.

PDF Url : ADA292704

Report Date : APR 1988

Pagination or Media Count : 11

Abstract : The purpose of this technical note is to present a preliminary evaluation of the standard elutriate test as a predictor of contaminant release (dissolved form) to the water column at the point of dredging. This note is meant to extend previous notes (Hayes 1987, Havis 1987) which dealt with resuspension of sediments due to dredging and the release of adsorbed chemicals which could enter the water phase at the point of dredging. Data collected under the Dredged Material Research Program (DMRP) showed that the standard elutriate test (Keeley and Engler 1974, US Environmental Protection Agency and US Army Corps of Engineers 1977, Environmental Effects Laboratory 1976) predicted, within an order of magnitude, dissolved chemical concentrations in water at dredged material disposal sites (Jones and Lee 1978). The potential for contaminant release also exists, however, at the point of dredging. This source of contaminant release during dredging was investigated by McLellan et al. (in preparation) under the Improvement of Operations and Maintenance Techniques (IOMT) program. Because of the success of the standard elutriate test for simulating dissolved contaminant release at the disposal site it was investigated as a tool for predicting contaminant release at the point of dredging.

Descriptors :   *DREDGED MATERIALS, MAINTENANCE, SOURCES, PREDICTIONS, CHEMICALS, WATER, ADSORPTION, SITES, ENVIRONMENTAL IMPACT, PROTECTION, RELEASE, CONTAMINANTS, DISPOSAL, ARMY, MENTAL ABILITY, DREDGING, DISSOLVING.

Subject Categories : Solid Wastes Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE