Data compilation for assessing sediment and toxic chemical loads from the Green River to the lower Duwamish Waterway, Washington

Data Series 880
Prepared in cooperation with the Washington State Department of Ecology.
By:  and 

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Abstract

Between February and June 2013, the U.S. Geological Survey collected representative samples of whole water, suspended sediment, and (or) bed sediment from a single strategically located site on the Duwamish River, Washington, during seven periods of different flow conditions. Samples were analyzed by Washington-State-accredited laboratories for a large suite of compounds, including polycyclic aromatic hydrocarbons and other semivolatile compounds, polychlorinated biphenyl Aroclors and the 209 congeners, metals, dioxins/furans, volatile organic compounds, pesticides, butyltins, hexavalent chromium, and total organic carbon. Chemical concentrations associated with bulk bed sediment (<2 mm) and fine bed sediment (<62.5 μm) fractions were compared to chemical concentrations associated with suspended sediment. Bulk bed sediment concentrations generally were lower than fine bed sediment and suspended-sediment concentrations. Concurrent with the chemistry sampling, additional parameters were measured, including instantaneous river discharge, suspended-sediment concentration, sediment particle-size distribution, and general water-quality parameters. From these data, estimates of instantaneous sediment and chemical loads from the Green River to the Lower Duwamish Waterway were calculated.

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Additional publication details

Publication type Report
Publication Subtype USGS Numbered Series
Title Data compilation for assessing sediment and toxic chemical loads from the Green River to the lower Duwamish Waterway, Washington
Series title Data Series
Series number 880
DOI 10.3133/ds880
Year Published 2014
Language English
Publisher U.S. Geological Survey
Publisher location Reston, VA
Contributing office(s) Washington Water Science Center
Description Report: vii, 46 p.; Appendix
Country United States
State Washington
Other Geospatial Duwamish Waterway
Online Only (Y/N) Y
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