Sandra Eberts (Former Employee)
Science and Products
Filter Total Items: 42
An Excel Workbook for Identifying Redox Processes in Ground Water An Excel Workbook for Identifying Redox Processes in Ground Water
The reduction/oxidation (redox) condition of ground water affects the concentration, transport, and fate of many anthropogenic and natural contaminants. The redox state of a ground-water sample is defined by the dominant type of reduction/oxidation reaction, or redox process, occurring in the sample, as inferred from water-quality data. However, because of the difficulty in defining and...
Authors
Bryant C. Jurgens, Peter McMahon, Francis Chapelle, Sandra M. Eberts
Vulnerability of a public supply well in a karstic aquifer to contamination Vulnerability of a public supply well in a karstic aquifer to contamination
To assess the vulnerability of ground water to contamination in the karstic Upper Floridan aquifer (UFA), age-dating tracers and selected anthropogenic and naturally occurring compounds were analyzed in multiple water samples from a public supply well (PSW) near Tampa, Florida. Samples also were collected from 28 monitoring wells in the UFA and the overlying surficial aquifer system (SAS...
Authors
B. G. Katz, W.S. McBride, A.G. Hunt, C. Crandall, P. Metz, S. Eberts, M. Berndt
Combining particle-tracking and geochemical data to assess public supply well vulnerability to arsenic and uranium Combining particle-tracking and geochemical data to assess public supply well vulnerability to arsenic and uranium
Flow-model particle-tracking results and geochemical data from seven study areas across the United States were analyzed using three statistical methods to test the hypothesis that these variables can successfully be used to assess public supply well vulnerability to arsenic and uranium. Principal components analysis indicated that arsenic and uranium concentrations were associated with...
Authors
S.R. Hinkle, L. Kauffman, M.A. Thomas, C. Brown, K. McCarthy, S. Eberts, Michael Rosen, B. G. Katz
Assessing the vulnerability of public-supply wells to contamination—High Plains Aquifer near York, Nebraska Assessing the vulnerability of public-supply wells to contamination—High Plains Aquifer near York, Nebraska
The U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program found, in studies from 1991 to 2001, low levels of mixtures of contaminants in ground water near the water table in urban areas across the Nation. Although contaminants were detected less frequently in deeper ground water typically developed for public supply the proximity of contaminant mixtures to underlying...
Authors
Martha Jagucki, Matthew Landon, Brian Clark, Sandra M. Eberts
Low-Level detections of halogenated volatile organic compounds in groundwater: Use in vulnerability assessments Low-Level detections of halogenated volatile organic compounds in groundwater: Use in vulnerability assessments
Concentrations of halogenated volatile organic compounds (VOCs) were determined by gas chromatography (GC) with an electron-capture detector (GC-ECD) and by gas chromatography with mass spectrometry (GC-MS) in 109 groundwater samples from five study areas in the United States. In each case, the untreated water sample was used for drinking-water purposes or was from a monitoring well in...
Authors
Niel Plummer, E. Busenberg, S. Eberts, L. Bexfield, C. Brown, L.S. Fahlquist, B. G. Katz, M.K. Landon
Simulated response of water quality in public supply wells to land use change Simulated response of water quality in public supply wells to land use change
Understanding how changes in land use affect water quality of public supply wells (PSW) is important because of the strong influence of land use on water quality, the rapid pace at which changes in land use are occurring in some parts of the world, and the large contribution of groundwater to the global water supply. In this study, groundwater flow models incorporating particle tracking...
Authors
P.B. McMahon, K.R. Burow, L. Kauffman, S. Eberts, J.K. Böhlke, J.J. Gurdak
Compound-specific isotope analysis: Questioning the origins of a trichloroethene plume Compound-specific isotope analysis: Questioning the origins of a trichloroethene plume
Stable carbon isotope ratios of trichloroethene (TCE), cis-1,2- dichloroethene, and trans-1,2-dichloroethene were determined by use of gas chromatography-combustion-isotope ratio mass spectroscopy to determine whether compound-specific stable carbon isotopes could be used to help understand the origin and history of a TCE groundwater plume in Fort Worth, TX. Calculated ??13C values for...
Authors
S. Eberts, C. Braun, S. Jones
Assessing the vulnerability of public-supply wells to contamination from urban, agricultural, and natural sources Assessing the vulnerability of public-supply wells to contamination from urban, agricultural, and natural sources
No abstract available.
Authors
Sandra M. Eberts, Martha Erwin, Pixie Hamilton
Long-term changes in ground water chemistry at a phytoremediation demonstration site Long-term changes in ground water chemistry at a phytoremediation demonstration site
A field-scale demonstration project was conducted to evaluate the capability of eastern cottonwood trees (Populus deltoides) to attenuate trichloroethene (TCE) contamination of ground water. By the middle of the sixth growing season, trees planted where depth to water was
Authors
Sandra Eberts, Sonya Jones, Christopher Braun, Gregory J Harvey
Water-level variations and their effects on tree growth and mortality and on the biogeochemical system at the phytoremediation demonstration site in Fort Worth, Texas, 1996-2003 Water-level variations and their effects on tree growth and mortality and on the biogeochemical system at the phytoremediation demonstration site in Fort Worth, Texas, 1996-2003
In 1996, a field-scale phytoremediation demonstration project was initiated and managed by the U.S. Air Force at a site in western Fort Worth, Texas, using a plantation of 1-year-old stems harvested from branches of eastern cottonwoods during the dormant season (whips) and a plantation of 1-year-old eastern cottonwood seedlings (calipers). The primary objective of the demonstration...
Authors
Christopher Braun, Sandra M. Eberts, Sonya Jones, Gregory Harvey
Strategic vision for the U. S. Geological Survey in the Great Lakes-St. Lawrence Region, 2001-2010 Strategic vision for the U. S. Geological Survey in the Great Lakes-St. Lawrence Region, 2001-2010
The U.S. Geological Survey's (USGS) strategic vision for the Great Lakes-St. Lawrence Region is that of a healthy ecosystem, whose ecological integrity and economic health are nurtured and sustained through sound resource-management decisions based on reliable, timely, and objective scientific information and data. The USGS is a leader in providing reliable, relevant, timely, and...
Authors
Donna Myers, M.J. Chambers, Verdel Dawson, Sandra Eberts, Marion Fisher, Michael Foose, Herbert Freiberger, John E. Gannon, David Greene, Deborah Hutchinson, James McNeal, Nancy Milton, James Nicholas, Charles Peters, Byron Stone, Dalia Varanka, Charles Hickman, Denise Wiltshire
Regional ground-water flow and geochemistry in the midwestern Basins and Arches aquifer system in parts of Indiana, Ohio, Michigan, and Illinois Regional ground-water flow and geochemistry in the midwestern Basins and Arches aquifer system in parts of Indiana, Ohio, Michigan, and Illinois
This report synthesizes information on the regional ground-water flow and geochemistry in the Midwestern Basins and Arches aquifer system in parts of Indiana, Ohio, Michigan, and Illinois. Aquifers that compose this water-table aquifer system include glacial aquifers and an underlying, areally extensive carbonate-rock aquifer. Water within the aquifers is most commonly a Ca-Mg-HCO3 type...
Authors
Sandra M. Eberts, Lori George
Non-USGS Publications**
Landon, M.K., Jurgens, B.C., Katz, B.G., Eberts, S.M., Burow, K.R., and Crandall, C.A., 2010, Depth-dependent sampling to identify short-circuit pathways to public-supply wells in multiple aquifer settings in the United States: Hydrogeology Journal, v. 18, no. 3, p. 577-593.
Eberts, S.M., Harvey, G.J., Beckman, S.W., and Jones, S.A., 2003, Multiple process assessment for a chlorinated-solvent plume, In Phytoremediation: Transformation and Control of Contaminants, McCutcheon, S.C. and Schnoor, J.L., eds.: New York, John Wiley and Sons, Inc.
Eberts, S., Schalk, C., Vose, J. and Harvey, G., 2000, Hydrologic effects of cottonwood trees on a shallow aquifer containing trichloroethene: Hydrological Science and Technology, v. 15, p. 115-121.
Bair, E.S., Sheets, R.A., and Eberts, S.M., 1990, Particle-tracking Analysis of flow paths and traveltimes from hypothetical spill sites within the capture area of a wellfield: Ground Water, 28: 884-892. doi:10.1111/j.1745-6584.1990.tb01724.x.
**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: 42
An Excel Workbook for Identifying Redox Processes in Ground Water An Excel Workbook for Identifying Redox Processes in Ground Water
The reduction/oxidation (redox) condition of ground water affects the concentration, transport, and fate of many anthropogenic and natural contaminants. The redox state of a ground-water sample is defined by the dominant type of reduction/oxidation reaction, or redox process, occurring in the sample, as inferred from water-quality data. However, because of the difficulty in defining and...
Authors
Bryant C. Jurgens, Peter McMahon, Francis Chapelle, Sandra M. Eberts
Vulnerability of a public supply well in a karstic aquifer to contamination Vulnerability of a public supply well in a karstic aquifer to contamination
To assess the vulnerability of ground water to contamination in the karstic Upper Floridan aquifer (UFA), age-dating tracers and selected anthropogenic and naturally occurring compounds were analyzed in multiple water samples from a public supply well (PSW) near Tampa, Florida. Samples also were collected from 28 monitoring wells in the UFA and the overlying surficial aquifer system (SAS...
Authors
B. G. Katz, W.S. McBride, A.G. Hunt, C. Crandall, P. Metz, S. Eberts, M. Berndt
Combining particle-tracking and geochemical data to assess public supply well vulnerability to arsenic and uranium Combining particle-tracking and geochemical data to assess public supply well vulnerability to arsenic and uranium
Flow-model particle-tracking results and geochemical data from seven study areas across the United States were analyzed using three statistical methods to test the hypothesis that these variables can successfully be used to assess public supply well vulnerability to arsenic and uranium. Principal components analysis indicated that arsenic and uranium concentrations were associated with...
Authors
S.R. Hinkle, L. Kauffman, M.A. Thomas, C. Brown, K. McCarthy, S. Eberts, Michael Rosen, B. G. Katz
Assessing the vulnerability of public-supply wells to contamination—High Plains Aquifer near York, Nebraska Assessing the vulnerability of public-supply wells to contamination—High Plains Aquifer near York, Nebraska
The U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program found, in studies from 1991 to 2001, low levels of mixtures of contaminants in ground water near the water table in urban areas across the Nation. Although contaminants were detected less frequently in deeper ground water typically developed for public supply the proximity of contaminant mixtures to underlying...
Authors
Martha Jagucki, Matthew Landon, Brian Clark, Sandra M. Eberts
Low-Level detections of halogenated volatile organic compounds in groundwater: Use in vulnerability assessments Low-Level detections of halogenated volatile organic compounds in groundwater: Use in vulnerability assessments
Concentrations of halogenated volatile organic compounds (VOCs) were determined by gas chromatography (GC) with an electron-capture detector (GC-ECD) and by gas chromatography with mass spectrometry (GC-MS) in 109 groundwater samples from five study areas in the United States. In each case, the untreated water sample was used for drinking-water purposes or was from a monitoring well in...
Authors
Niel Plummer, E. Busenberg, S. Eberts, L. Bexfield, C. Brown, L.S. Fahlquist, B. G. Katz, M.K. Landon
Simulated response of water quality in public supply wells to land use change Simulated response of water quality in public supply wells to land use change
Understanding how changes in land use affect water quality of public supply wells (PSW) is important because of the strong influence of land use on water quality, the rapid pace at which changes in land use are occurring in some parts of the world, and the large contribution of groundwater to the global water supply. In this study, groundwater flow models incorporating particle tracking...
Authors
P.B. McMahon, K.R. Burow, L. Kauffman, S. Eberts, J.K. Böhlke, J.J. Gurdak
Compound-specific isotope analysis: Questioning the origins of a trichloroethene plume Compound-specific isotope analysis: Questioning the origins of a trichloroethene plume
Stable carbon isotope ratios of trichloroethene (TCE), cis-1,2- dichloroethene, and trans-1,2-dichloroethene were determined by use of gas chromatography-combustion-isotope ratio mass spectroscopy to determine whether compound-specific stable carbon isotopes could be used to help understand the origin and history of a TCE groundwater plume in Fort Worth, TX. Calculated ??13C values for...
Authors
S. Eberts, C. Braun, S. Jones
Assessing the vulnerability of public-supply wells to contamination from urban, agricultural, and natural sources Assessing the vulnerability of public-supply wells to contamination from urban, agricultural, and natural sources
No abstract available.
Authors
Sandra M. Eberts, Martha Erwin, Pixie Hamilton
Long-term changes in ground water chemistry at a phytoremediation demonstration site Long-term changes in ground water chemistry at a phytoremediation demonstration site
A field-scale demonstration project was conducted to evaluate the capability of eastern cottonwood trees (Populus deltoides) to attenuate trichloroethene (TCE) contamination of ground water. By the middle of the sixth growing season, trees planted where depth to water was
Authors
Sandra Eberts, Sonya Jones, Christopher Braun, Gregory J Harvey
Water-level variations and their effects on tree growth and mortality and on the biogeochemical system at the phytoremediation demonstration site in Fort Worth, Texas, 1996-2003 Water-level variations and their effects on tree growth and mortality and on the biogeochemical system at the phytoremediation demonstration site in Fort Worth, Texas, 1996-2003
In 1996, a field-scale phytoremediation demonstration project was initiated and managed by the U.S. Air Force at a site in western Fort Worth, Texas, using a plantation of 1-year-old stems harvested from branches of eastern cottonwoods during the dormant season (whips) and a plantation of 1-year-old eastern cottonwood seedlings (calipers). The primary objective of the demonstration...
Authors
Christopher Braun, Sandra M. Eberts, Sonya Jones, Gregory Harvey
Strategic vision for the U. S. Geological Survey in the Great Lakes-St. Lawrence Region, 2001-2010 Strategic vision for the U. S. Geological Survey in the Great Lakes-St. Lawrence Region, 2001-2010
The U.S. Geological Survey's (USGS) strategic vision for the Great Lakes-St. Lawrence Region is that of a healthy ecosystem, whose ecological integrity and economic health are nurtured and sustained through sound resource-management decisions based on reliable, timely, and objective scientific information and data. The USGS is a leader in providing reliable, relevant, timely, and...
Authors
Donna Myers, M.J. Chambers, Verdel Dawson, Sandra Eberts, Marion Fisher, Michael Foose, Herbert Freiberger, John E. Gannon, David Greene, Deborah Hutchinson, James McNeal, Nancy Milton, James Nicholas, Charles Peters, Byron Stone, Dalia Varanka, Charles Hickman, Denise Wiltshire
Regional ground-water flow and geochemistry in the midwestern Basins and Arches aquifer system in parts of Indiana, Ohio, Michigan, and Illinois Regional ground-water flow and geochemistry in the midwestern Basins and Arches aquifer system in parts of Indiana, Ohio, Michigan, and Illinois
This report synthesizes information on the regional ground-water flow and geochemistry in the Midwestern Basins and Arches aquifer system in parts of Indiana, Ohio, Michigan, and Illinois. Aquifers that compose this water-table aquifer system include glacial aquifers and an underlying, areally extensive carbonate-rock aquifer. Water within the aquifers is most commonly a Ca-Mg-HCO3 type...
Authors
Sandra M. Eberts, Lori George
Non-USGS Publications**
Landon, M.K., Jurgens, B.C., Katz, B.G., Eberts, S.M., Burow, K.R., and Crandall, C.A., 2010, Depth-dependent sampling to identify short-circuit pathways to public-supply wells in multiple aquifer settings in the United States: Hydrogeology Journal, v. 18, no. 3, p. 577-593.
Eberts, S.M., Harvey, G.J., Beckman, S.W., and Jones, S.A., 2003, Multiple process assessment for a chlorinated-solvent plume, In Phytoremediation: Transformation and Control of Contaminants, McCutcheon, S.C. and Schnoor, J.L., eds.: New York, John Wiley and Sons, Inc.
Eberts, S., Schalk, C., Vose, J. and Harvey, G., 2000, Hydrologic effects of cottonwood trees on a shallow aquifer containing trichloroethene: Hydrological Science and Technology, v. 15, p. 115-121.
Bair, E.S., Sheets, R.A., and Eberts, S.M., 1990, Particle-tracking Analysis of flow paths and traveltimes from hypothetical spill sites within the capture area of a wellfield: Ground Water, 28: 884-892. doi:10.1111/j.1745-6584.1990.tb01724.x.
**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.