Sandra Eberts (Former Employee)
Science and Products
Filter Total Items: 42
Effects of human-induced alteration of groundwater flow on concentrations of naturally-occurring trace elements at water-supply wells Effects of human-induced alteration of groundwater flow on concentrations of naturally-occurring trace elements at water-supply wells
The effects of human-induced alteration of groundwater flow patterns on concentrations of naturally-occurring trace elements were examined in five hydrologically distinct aquifer systems in the USA. Although naturally occurring, these trace elements can exceed concentrations that are considered harmful to human health. The results show that pumping-induced hydraulic gradient changes and...
Authors
J. D. Ayotte, Z. Szabo, M. J. Focazio, S. M. Eberts
Using Cl/Br ratios and other indicators to assess potential impacts on groundwater quality from septic systems: A review and examples from principal aquifers in the United States Using Cl/Br ratios and other indicators to assess potential impacts on groundwater quality from septic systems: A review and examples from principal aquifers in the United States
A detailed review was made of chemical indicators used to identify impacts from septic tanks on groundwater quality. Potential impacts from septic tank leachate on groundwater quality were assessed using the mass ratio of chloride–bromide (Cl/Br), concentrations of selected chemical constituents, and ancillary information (land use, census data, well depth, soil characteristics) for...
Authors
B. G. Katz, S. M. Eberts, L. J. Kauffman
Depth-dependent sampling to identify short-circuit pathways to public-supply wells in multiple aquifer settings in the United States Depth-dependent sampling to identify short-circuit pathways to public-supply wells in multiple aquifer settings in the United States
Depth-dependent water-quality and borehole flow data were used to determine where and how contamination enters public-supply wells (PSWs) at study sites in different principal aquifers of the United States. At each of three study sites, depth-dependent samples and wellbore flow data were collected from multiple depths in selected PSWs under pumping conditions. The chemistry of these...
Authors
Matthew K. Landon, Bryant C. Jurgens, Brian G. Katz, Sandra M. Eberts, Karen R. Burow, Christy A. Crandall
Assessing the vulnerability of public-supply wells to contamination: Glacial aquifer system in Woodbury, Connecticut Assessing the vulnerability of public-supply wells to contamination: Glacial aquifer system in Woodbury, Connecticut
This fact sheet highlights findings from the vulnerability study of a public-supply well in Woodbury, Connecticut. The well typically produces water at the rate of 72 gallons per minute from the glacial aquifer system in the Pomperaug River Basin. Water samples were collected at the public-supply well and at monitoring wells installed in or near the simulated zone of contribution to the...
Authors
Martha L. Jagucki, Craig J. Brown, J. Jeffrey Starn, Sandra M. Eberts
Assessing the vulnerability of public-supply wells to contamination: Floridan aquifer system near Tampa, Florida Assessing the vulnerability of public-supply wells to contamination: Floridan aquifer system near Tampa, Florida
This fact sheet highlights findings from the vulnerability study of a public-supply well in Temple Terrace, Florida, northeast of Tampa. The well selected for study typically produces water at the rate of 700 gallons per minute from the Upper Floridan aquifer. Water samples were collected at the public-supply well and at monitoring wells installed in or near the simulated zone of...
Authors
Martha L. Jagucki, Brian G. Katz, Christy A. Crandall, Sandra M. Eberts
Assessing the Vulnerability of Public-Supply Wells to Contamination: Central Valley Aquifer System near Modesto, California Assessing the Vulnerability of Public-Supply Wells to Contamination: Central Valley Aquifer System near Modesto, California
This fact sheet highlights findings from the vulnerability study of a public-supply well in Modesto, California. The well selected for study pumps on average about 1,600 gallons per minute from the Central Valley aquifer system during peak summer demand. Water samples were collected at the public-supply well and at monitoring wells installed in the Modesto vicinity. Samples from the...
Authors
Martha L. Jagucki, Bryant C. Jurgens, Karen R. Burow, Sandra M. Eberts
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
Effects of human-induced alteration of groundwater flow on concentrations of naturally-occurring trace elements at water-supply wells Effects of human-induced alteration of groundwater flow on concentrations of naturally-occurring trace elements at water-supply wells
The effects of human-induced alteration of groundwater flow patterns on concentrations of naturally-occurring trace elements were examined in five hydrologically distinct aquifer systems in the USA. Although naturally occurring, these trace elements can exceed concentrations that are considered harmful to human health. The results show that pumping-induced hydraulic gradient changes and...
Authors
J. D. Ayotte, Z. Szabo, M. J. Focazio, S. M. Eberts
Using Cl/Br ratios and other indicators to assess potential impacts on groundwater quality from septic systems: A review and examples from principal aquifers in the United States Using Cl/Br ratios and other indicators to assess potential impacts on groundwater quality from septic systems: A review and examples from principal aquifers in the United States
A detailed review was made of chemical indicators used to identify impacts from septic tanks on groundwater quality. Potential impacts from septic tank leachate on groundwater quality were assessed using the mass ratio of chloride–bromide (Cl/Br), concentrations of selected chemical constituents, and ancillary information (land use, census data, well depth, soil characteristics) for...
Authors
B. G. Katz, S. M. Eberts, L. J. Kauffman
Depth-dependent sampling to identify short-circuit pathways to public-supply wells in multiple aquifer settings in the United States Depth-dependent sampling to identify short-circuit pathways to public-supply wells in multiple aquifer settings in the United States
Depth-dependent water-quality and borehole flow data were used to determine where and how contamination enters public-supply wells (PSWs) at study sites in different principal aquifers of the United States. At each of three study sites, depth-dependent samples and wellbore flow data were collected from multiple depths in selected PSWs under pumping conditions. The chemistry of these...
Authors
Matthew K. Landon, Bryant C. Jurgens, Brian G. Katz, Sandra M. Eberts, Karen R. Burow, Christy A. Crandall
Assessing the vulnerability of public-supply wells to contamination: Glacial aquifer system in Woodbury, Connecticut Assessing the vulnerability of public-supply wells to contamination: Glacial aquifer system in Woodbury, Connecticut
This fact sheet highlights findings from the vulnerability study of a public-supply well in Woodbury, Connecticut. The well typically produces water at the rate of 72 gallons per minute from the glacial aquifer system in the Pomperaug River Basin. Water samples were collected at the public-supply well and at monitoring wells installed in or near the simulated zone of contribution to the...
Authors
Martha L. Jagucki, Craig J. Brown, J. Jeffrey Starn, Sandra M. Eberts
Assessing the vulnerability of public-supply wells to contamination: Floridan aquifer system near Tampa, Florida Assessing the vulnerability of public-supply wells to contamination: Floridan aquifer system near Tampa, Florida
This fact sheet highlights findings from the vulnerability study of a public-supply well in Temple Terrace, Florida, northeast of Tampa. The well selected for study typically produces water at the rate of 700 gallons per minute from the Upper Floridan aquifer. Water samples were collected at the public-supply well and at monitoring wells installed in or near the simulated zone of...
Authors
Martha L. Jagucki, Brian G. Katz, Christy A. Crandall, Sandra M. Eberts
Assessing the Vulnerability of Public-Supply Wells to Contamination: Central Valley Aquifer System near Modesto, California Assessing the Vulnerability of Public-Supply Wells to Contamination: Central Valley Aquifer System near Modesto, California
This fact sheet highlights findings from the vulnerability study of a public-supply well in Modesto, California. The well selected for study pumps on average about 1,600 gallons per minute from the Central Valley aquifer system during peak summer demand. Water samples were collected at the public-supply well and at monitoring wells installed in the Modesto vicinity. Samples from the...
Authors
Martha L. Jagucki, Bryant C. Jurgens, Karen R. Burow, Sandra M. Eberts
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.