Inorganic Chemistry of Water and Bed Sediment in Selected Tributaries of the South Umpqua River, Oregon, 1998Entry ID: WRIR_99_4196
Abstract: Ten sites on small South Umpqua River tributaries were sampled for inorganic
constituents in water and streambed sediment. In aqueous samples, high
concentrations (concentrations exceeding U.S. Environmental Protection Agency
criterion continuous concentration for the protection of aquatic life) of zinc,
copper, and cadmium were detected in Middle Creek at Silver Butte, and the
concentration of ... zinc was high at Middle Creek near Riddle. Similar patterns of
trace-element occurrence were observed in streambed-sediment samples. The
dissolved aqueous load of zinc carried by Middle Creek along the stretch
between the upper site (Middle Creek at Silver Butte) and the lower site
(Middle Creek near Riddle) decreased by about 0.3 pounds per day. Removal of
zinc from solution between the upper and lower sites on Middle Creek evidently
was occurring at the time of sampling. However, zinc that leaves the aqueous
phase is not necessarily permanently lost from solution. For example, zinc
solubility is pH-dependent, and a shift between solid and aqueous phases
towards release of zinc to solution in Middle Creek could occur with a
perturbation in stream-water pH. Thus, at least two potentially significant
sources of zinc may exist in Middle Creek: (1) the upstream source(s) producing
the observed high aqueous zinc concentrations and (2) the streambed sediment
itself (zinc-bearing solid phases and/or adsorbed zinc). Similar behavior may
be exhibited by copper and cadmium because these trace elements also were
present at high concentrations in streambed sediment in the Middle Creek Basin.
This report presents results of an investigation of water and
streambed-sediment quality in selected tributaries of the South Umpqua River.
Concentrations of inorganic constituents in water (major and minor ions,
nutrients, and trace elements) and streambed sediment (primarily trace
elements), along with standard field parameters, are tabulated for samples
collected at 10 sites. Aqueous trace-element concentrations are compared with
U.S. Environmental Protection Agency (USEPA) criterion continuous
concentrations for the protection of aquatic life (Environment Canada, 1998)
and, to provide a frame of reference, with previously collected
streambed-sediment data from the Willamette Basin in western Oregon.
The area of study was the South Umpqua River, Oregon.
Ten sites on small streams in the South Umpqua Basin were sampled during
low-flow conditions in August and September 1998. Effects of stormflows on
trace element mobilization would not be captured during low-flow conditions,
but dilution effects on dissolved trace-element concentrations would be
expected to be minimized during low flows. The streams drain areas containing
natural ore deposits and/or mining sites.
Measurements of streamflow were made in accordance with standard USGS
procedures (Rantz and others, 1982). For 5 of the 10 sites, narrow stream
dimensions and small water flows resulted in greater measurement uncertainty
(uncertainty +/-8 percent) than is typically observed in measurements at larger
streams; for these sites, streamflows are reported to one significant figure
and are labeled as estimates. Streamflows reported as estimates in this report
represent quantitative measurements, but the standard error of measurement may
range up to +/-20-30 percent.
Water samples were analyzed at the USGS National Water Quality Laboratory
(NWQL) in Arvada, Colorado. Major and minor ions were analyzed by inductively
coupled plasma/atomic emission spectrometry (ICP/AES) (calcium, iron,
magnesium, manganese, silica, sodium), ion-exchange chromatography (chloride,
sulfate), atomic absorption spectrometry (potassium), and with an ion-selective
electrode (fluoride). Nutrients were measured colorimetrically. Trace
elements were measured by inductively coupled plasma/mass spectrometry (ICP/MS)
(aluminum, antimony, barium, beryllium, cadmium, chromium, cobalt, copper,
lead, manganese, molybdenum, nickel, silver, uranium, zinc), graphite
furnace-atomic absorption spectrometry (selenium), and hybride
generation-atomic absorption spectrometry (arsenic). Note that manganese was
analyzed by both ICP/AES (part of trace-element suite). Analytical methods are
described in Faires (1993), Fishman (1993), Fishman and Friedman (1989), and
Jones and Garbarino (1999).
Streambed-sediment samples were analyzed for a suite of 48 constituents by the
USGS Analytical Chemistry Services Group Laboratory (ACSGL) in Denver,
Colorado. Analytical methods are described in Arbogast (1996) and Briggs and
Information for this metadata was obtained from the Technical Reports of the
Oregon District available at http://oregon.usgs.gov/pubs_dir/online_list.html .
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Data Set Citation
Dataset Originator/Creator: Stephen R. Hinkle, U.S. Geological Survey
Dataset Title: Inorganic Chemistry of Water and Bed Sediment in Selected Tributaries of the South Umpqua River, Oregon, 1998
Dataset Release Date: 1999
Dataset Release Place: Portland, Oregon
Dataset Publisher: U.S. Geological Survey
Data Presentation Form: database
Start Date: 1998-08-01Stop Date: 1998-09-01
HUMAN DIMENSIONS > ENVIRONMENTAL IMPACTS > CONTAMINANT LEVELS/SPILLS
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CONTAMINANTS > ZINC
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CONTAMINANTS > COPPER
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > CONTAMINANTS > CADMIUM
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > INORGANIC MATTER
TERRESTRIAL HYDROSPHERE > WATER QUALITY/WATER CHEMISTRY > TRACE METALS
BIOSPHERE > AQUATIC ECOSYSTEMS > RIVERS/STREAM HABITAT > SOUTH UMPQUA RIVER
Quality No Quality Assurance/Quality Control information was provided in the
report. The only qualifier code used in the data set provided was "U"
- Not detected. Value given is the detection limit.
Users of these data should be reminded that they were collected in the
vicinity of a potential souce of industrial pollutants.
All data entered in the database were reviewed for data entry errors.
All detected errors were corrected.
Access Constraints None
Use Constraints None
Data Set Progress
Role: DIF AUTHOR
Phone: (301) 614-6898
Email: Tyler.B.Stevens at nasa.gov
NASA Goddard Space Flight Center Global Change Master Directory
Province or State: MD
Postal Code: 20771
Role: TECHNICAL CONTACT
Phone: (360) 834-8390
Fax: (360) 834- 8327
Email: carol.whitaker at gapac.com
Georgia Pacific 349 Northwest 7th Avenue
Province or State: Washington
Postal Code: 98607
Standard Methods for the Examination of Water and Wastewater, 16th
Ed., American Public Health Association, Washington, D.C., 1985.
Young, S.R. 1988. Columbia River sediment. Report to D.F. Bachman,
Environmental Department, James River-Camas Mill, October 18, 1988.
Young, S.R. 1989. Columbia River sediment. Report to D.F. Bachman,
Environmental Department, James River-Camas Mill, November 28, 1989.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-05-27
Last DIF Revision Date: 2012-12-21
Future DIF Review Date: 2002-05-27