Chemical concentrations in water and suspended sediment, Green River to Lower Duwamish Waterway near Seattle, Washington, 2016–17

Kathleen E. Conn; Robert W. Black; Norman T. Peterson; Craig A. Senter; Elena A. Chapman

doi:10.3133/ds1073

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Chemical concentrations in water and suspended sediment, Green River to Lower Duwamish Waterway near Seattle, Washington, 2016–17

Kathleen E. Conn·Robert W. Black·Norman T. Peterson·Craig A. Senter·Elena A. Chapman

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Abstract

From August 2016 to March 2017, the U.S. Geological Survey (USGS) collected representative samples of filtered and unfiltered water and suspended sediment (including the colloidal fraction) at USGS streamgage 12113390 (Duwamish River at Golf Course, at Tukwila, Washington) during 13 periods of differing flow conditions. Samples were analyzed by Washington-State-accredited laboratories for a large suite of compounds, including metals, dioxins/furans, semivolatile compounds including polycyclic aromatic hydrocarbons, butyltins, the 209 polychlorinated biphenyl (PCB) congeners, and total and dissolved organic carbon. Concurrent with the chemistry sampling, water-quality field parameters were measured, and representative water samples were collected and analyzed for river suspended-sediment concentration and particle-size distribution. The results provide new data that can be used to estimate sediment and chemical loads transported by the Green River to the Lower Duwamish Waterway.

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Source-reported bounding extent: 47.50931654292719° to 47.572124991940015° latitude; -122.35507965087889° to -122.29499816894531° longitude. This indicates report coverage, not an exact sampling location. View area on OpenStreetMap.

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Kathleen E. Conn, Robert W. Black, Norman T. Peterson, Craig A. Senter, Elena A. Chapman. 2018-01-05. Chemical concentrations in water and suspended sediment, Green River to Lower Duwamish Waterway near Seattle, Washington, 2016–17. https://doi.org/10.3133/ds1073

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