Monitoring water-quality during pilot-dredging operations in the Willamette and Columbia Rivers, Oregon

Open-File Report 78-554
By:  and 

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Abstract

Water quality was monitored in the Willamette and Columbia Rivers during a pilot dredging operation on December 16, 1977. Monitoring included in-situ measurements of pH, temperature, dissolved oxygen, and conductivity in the Willamette and Columbia Rivers; analyses of dissolved ammonia, dissolved manganese, suspended-sediment concentration and particle size, loss on ignition, and total organic carbon in river-water samples; and analyses of percent moisture, particle size, density, selected nutrients, total organic carbon, and loss on ignition in dredged material and barge-overflow samples.

Study Area

Publication type Report
Publication Subtype USGS Numbered Series
Title Monitoring water-quality during pilot-dredging operations in the Willamette and Columbia Rivers, Oregon
Series title Open-File Report
Series number 78-554
DOI 10.3133/ofr78554
Year Published 1978
Language English
Publisher U.S. Geological Survey
Publisher location Portland, OR
Contributing office(s) Oregon Water Science Center
Description v, 16 p.
Country United States
State Oregon
Other Geospatial Columbia River, Willamette River
Online Only (Y/N) N
Additional Online Files (Y/N) N
Google Analytic Metrics Metrics page
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