Stewart Rounds (Former Employee)
Science and Products
Filter Total Items: 67
Modeling water quality effects of structural and operational changes to Scoggins Dam and Henry Hagg Lake, Oregon Modeling water quality effects of structural and operational changes to Scoggins Dam and Henry Hagg Lake, Oregon
To meet water quality targets and the municipal and industrial water needs of a growing population in the Tualatin River Basin in northwestern Oregon, an expansion of Henry Hagg Lake is under consideration. Hagg Lake is the basin's primary storage reservoir and provides water during western Oregon's typically dry summers. Potential modifications include raising the dam height by 6.1...
Authors
Annett B. Sullivan, Stewart A. Rounds
Chapter A6. Section 6.2. Dissolved oxygen Chapter A6. Section 6.2. Dissolved oxygen
Accurate data for the concentration of dissolved oxygen in surface and ground waters are essential for documenting changes in environmental water resources that result from natural phenomena and human activities. Dissolved oxygen is necessary in aquatic systems for the survival and growth of many aquatic organisms and is used as an indicator of the health of surface-water bodies. This...
Authors
Stewart A. Rounds, Franceska D. Wilde, George F. Ritz
Modeling hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, 2000-03 Modeling hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, 2000-03
The two-dimensional model CE-QUAL-W2 was used to simulate hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, for the years 2000 through 2003. Input data included lake bathymetry, meteorologic conditions, tributary inflows, tributary temperature and water quality, and lake outflows. Calibrated constituents included lake hydrodynamics, water temperature...
Authors
Annette B. Sullivan, Stewart A. Rounds
Modeling Streamflow and Water Temperature in the North Santiam and Santiam Rivers, Oregon, 2001-02 Modeling Streamflow and Water Temperature in the North Santiam and Santiam Rivers, Oregon, 2001-02
To support the development of a total maximum daily load (TMDL) for water temperature in the Willamette Basin, the laterally averaged, two-dimensional model CE-QUAL-W2 was used to construct a water temperature and streamflow model of the Santiam and North Santiam Rivers. The rivers were simulated from downstream of Detroit and Big Cliff dams to the confluence with the Willamette River...
Authors
Annett B. Sullivan, Stewart A. Roundsk
Water-quality data from 2002 to 2003 and analysis of data gaps for development of total maximum daily loads in the Lower Klamath River Basin, California Water-quality data from 2002 to 2003 and analysis of data gaps for development of total maximum daily loads in the Lower Klamath River Basin, California
The U.S. Geological Survey (USGS) collected water-quality data during 2002 and 2003 in the Lower Klamath River Basin, in northern California, to support studies of river conditions as they pertain to the viability of Chinook and Coho salmon and endangered suckers. To address the data needs of the North Coast Regional Water Quality Control Board for the development of Total Maximum Daily...
Authors
Lorraine E. Flint, Alan L. Flint, Debra S. Curry, Stewart A. Rounds, Micelis C. Doyle
The effect of chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River basin, Oregon The effect of chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River basin, Oregon
Three sediment oxygen demand (SOD) measurement chambers were deployed in the Tualatin River near Tigard, Oregon, at river mile 10 in August 2000. SOD rates were calculated for three different circulation velocities during each chamber deployment. The SOD rate at each velocity was calculated from a graph of dissolved oxygen concentration versus elapsed time. An acoustic doppler current...
Authors
Micelis C. Doyle, Stewart Rounds
Non-USGS Publications**
Rounds, S.A. and Pankow, J.F., 1993, Determination of selected chlorinated benzenes in water by purging directly to a capillary column with whole column cryotrapping and electron capture detection: J. Chromatogr., v. 629, p. 321-327. https://doi.org/10.1016/0021-9673(93)87046-O
Rounds, S.A., Tiffany, B.A., and Pankow, J.F., 1993, Description of gas/particle sorption kinetics with an intraparticle diffusion model: desorption experiments: Environ. Sci. Technol., v. 27, p. 366-377. https://doi.org/10.1021/es00039a018
Rounds, S.A. and Pankow, J.F., 1990, Application of a radial diffusion model to describe gas/particle sorption kinetics: Environ. Sci. Technol., v. 24, p. 1378-1386. https://doi.org/10.1021/es00079a012
Bonn, B.A. and Rounds, S.A., 1990, DREAM - Analytical Groundwater Flow Programs: Chelsea, MI, Lewis Publishers, 109 p. https://www.taylorfrancis.com/books/mono/10.1201/9781003069898/dream-bernadine-bonn-stewart-rounds
Larson, R.A., and Rounds, S.A., 1987, Photochemistry in Aqueous Surface Layers: 1-Naphthol: chap. 15, pp 206-214 in Photochemistry of Environmental Aquatic Systems, Zika, R.G. and Cooper, W.J., editors, ACS Symposium Series volume 327, American Chemical Society. https://pubs.acs.org/doi/pdf/10.1021/bk-1987-0327.ch015
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 67
Modeling water quality effects of structural and operational changes to Scoggins Dam and Henry Hagg Lake, Oregon Modeling water quality effects of structural and operational changes to Scoggins Dam and Henry Hagg Lake, Oregon
To meet water quality targets and the municipal and industrial water needs of a growing population in the Tualatin River Basin in northwestern Oregon, an expansion of Henry Hagg Lake is under consideration. Hagg Lake is the basin's primary storage reservoir and provides water during western Oregon's typically dry summers. Potential modifications include raising the dam height by 6.1...
Authors
Annett B. Sullivan, Stewart A. Rounds
Chapter A6. Section 6.2. Dissolved oxygen Chapter A6. Section 6.2. Dissolved oxygen
Accurate data for the concentration of dissolved oxygen in surface and ground waters are essential for documenting changes in environmental water resources that result from natural phenomena and human activities. Dissolved oxygen is necessary in aquatic systems for the survival and growth of many aquatic organisms and is used as an indicator of the health of surface-water bodies. This...
Authors
Stewart A. Rounds, Franceska D. Wilde, George F. Ritz
Modeling hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, 2000-03 Modeling hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, 2000-03
The two-dimensional model CE-QUAL-W2 was used to simulate hydrodynamics, temperature, and water quality in Henry Hagg Lake, Oregon, for the years 2000 through 2003. Input data included lake bathymetry, meteorologic conditions, tributary inflows, tributary temperature and water quality, and lake outflows. Calibrated constituents included lake hydrodynamics, water temperature...
Authors
Annette B. Sullivan, Stewart A. Rounds
Modeling Streamflow and Water Temperature in the North Santiam and Santiam Rivers, Oregon, 2001-02 Modeling Streamflow and Water Temperature in the North Santiam and Santiam Rivers, Oregon, 2001-02
To support the development of a total maximum daily load (TMDL) for water temperature in the Willamette Basin, the laterally averaged, two-dimensional model CE-QUAL-W2 was used to construct a water temperature and streamflow model of the Santiam and North Santiam Rivers. The rivers were simulated from downstream of Detroit and Big Cliff dams to the confluence with the Willamette River...
Authors
Annett B. Sullivan, Stewart A. Roundsk
Water-quality data from 2002 to 2003 and analysis of data gaps for development of total maximum daily loads in the Lower Klamath River Basin, California Water-quality data from 2002 to 2003 and analysis of data gaps for development of total maximum daily loads in the Lower Klamath River Basin, California
The U.S. Geological Survey (USGS) collected water-quality data during 2002 and 2003 in the Lower Klamath River Basin, in northern California, to support studies of river conditions as they pertain to the viability of Chinook and Coho salmon and endangered suckers. To address the data needs of the North Coast Regional Water Quality Control Board for the development of Total Maximum Daily...
Authors
Lorraine E. Flint, Alan L. Flint, Debra S. Curry, Stewart A. Rounds, Micelis C. Doyle
The effect of chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River basin, Oregon The effect of chamber mixing velocity on bias in measurement of sediment oxygen demand rates in the Tualatin River basin, Oregon
Three sediment oxygen demand (SOD) measurement chambers were deployed in the Tualatin River near Tigard, Oregon, at river mile 10 in August 2000. SOD rates were calculated for three different circulation velocities during each chamber deployment. The SOD rate at each velocity was calculated from a graph of dissolved oxygen concentration versus elapsed time. An acoustic doppler current...
Authors
Micelis C. Doyle, Stewart Rounds
Non-USGS Publications**
Rounds, S.A. and Pankow, J.F., 1993, Determination of selected chlorinated benzenes in water by purging directly to a capillary column with whole column cryotrapping and electron capture detection: J. Chromatogr., v. 629, p. 321-327. https://doi.org/10.1016/0021-9673(93)87046-O
Rounds, S.A., Tiffany, B.A., and Pankow, J.F., 1993, Description of gas/particle sorption kinetics with an intraparticle diffusion model: desorption experiments: Environ. Sci. Technol., v. 27, p. 366-377. https://doi.org/10.1021/es00039a018
Rounds, S.A. and Pankow, J.F., 1990, Application of a radial diffusion model to describe gas/particle sorption kinetics: Environ. Sci. Technol., v. 24, p. 1378-1386. https://doi.org/10.1021/es00079a012
Bonn, B.A. and Rounds, S.A., 1990, DREAM - Analytical Groundwater Flow Programs: Chelsea, MI, Lewis Publishers, 109 p. https://www.taylorfrancis.com/books/mono/10.1201/9781003069898/dream-bernadine-bonn-stewart-rounds
Larson, R.A., and Rounds, S.A., 1987, Photochemistry in Aqueous Surface Layers: 1-Naphthol: chap. 15, pp 206-214 in Photochemistry of Environmental Aquatic Systems, Zika, R.G. and Cooper, W.J., editors, ACS Symposium Series volume 327, American Chemical Society. https://pubs.acs.org/doi/pdf/10.1021/bk-1987-0327.ch015
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.