Sandra Eberts (Former Employee)
Science and Products
Filter Total Items: 42
The quality of our Nation's waters: factors affecting public-supply-well vulnerability to contamination: understanding observed water quality and anticipating future water quality The quality of our Nation's waters: factors affecting public-supply-well vulnerability to contamination: understanding observed water quality and anticipating future water quality
As part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program, a study was conducted from 2001 to 2011 to shed light on factors that affect the vulnerability of water from public-supply wells to contamination (referred to hereafter as “public-supply-well vulnerability”). The study was designed as a follow-up to earlier NAWQA studies that found mixtures of...
Authors
Sandra M. Eberts, Mary Ann Thomas, Martha L. Jagucki
TracerLPM (Version 1): An Excel® workbook for interpreting groundwater age distributions from environmental tracer data TracerLPM (Version 1): An Excel® workbook for interpreting groundwater age distributions from environmental tracer data
TracerLPM is an interactive Excel® (2007 or later) workbook program for evaluating groundwater age distributions from environmental tracer data by using lumped parameter models (LPMs). Lumped parameter models are mathematical models of transport based on simplified aquifer geometry and flow configurations that account for effects of hydrodynamic dispersion or mixing within the aquifer...
Authors
Bryant C. Jurgens, J.K. Böhlke, Sandra M. Eberts
Assessing the vulnerability of public-supply wells to contamination: Rio Grande aquifer system in Albuquerque, New Mexico Assessing the vulnerability of public-supply wells to contamination: Rio Grande aquifer system in Albuquerque, New Mexico
This fact sheet highlights findings from the vulnerability study of a public-supply well in Albuquerque, New Mexico (hereafter referred to as “the study well”). The study well produces about 3,000 gallons of water per minute from the Rio Grande aquifer system. Water samples were collected at the study well, at two other nearby public-supply wells, and at monitoring wells installed in or...
Authors
Martha L. Jagucki, Laura M. Bexfield, Charles E. Heywood, Sandra M. Eberts
Assessing the vulnerability of public-supply wells to contamination—Edwards aquifer near San Antonio, Texas Assessing the vulnerability of public-supply wells to contamination—Edwards aquifer near San Antonio, Texas
This fact sheet highlights findings from the vulnerability study of a public-supply well field in San Antonio, Texas. The well field consists of six production wells that tap the Edwards aquifer. Typically, one or two wells are pumped at a time, yielding an average total of 20-21 million gallons per day. Water samples were collected from public-supply wells in the well field and from...
Authors
Martha L. Jagucki, MaryLynn Musgrove, Richard J. Lindgren, Lynne Fahlquist, Sandra M. Eberts
Modeling the potential impact of seasonal and inactive multi-aquifer wells on contaminant movement to public water-supply wells Modeling the potential impact of seasonal and inactive multi-aquifer wells on contaminant movement to public water-supply wells
Wells screened across multiple aquifers can provide pathways for the movement of surprisingly large volumes of groundwater to confined aquifers used for public water supply (PWS). Using a simple numerical model, we examine the impact of several pumping scenarios on leakage from an unconfined aquifer to a confined aquifer and conclude that a single inactive multi-aquifer well can...
Authors
R.L. Johnson, B.R. Clark, M.K. Landon, L. J. Kauffman, S. M. Eberts
Hydrogeologic settings and groundwater-flow simulations for regional investigations of the transport of anthropogenic and natural contaminants to public-supply wells—Investigations begun in 2004 Hydrogeologic settings and groundwater-flow simulations for regional investigations of the transport of anthropogenic and natural contaminants to public-supply wells—Investigations begun in 2004
A study of the Transport of Anthropogenic and Natural Contaminants to public-supply wells (TANC study) was begun in 2001 as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. The study was designed to shed light on factors that affect the vulnerability of groundwater and, more specifically, water from public-supply wells to contamination to provide a...
Authors
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
The quality of our Nation's waters: factors affecting public-supply-well vulnerability to contamination: understanding observed water quality and anticipating future water quality The quality of our Nation's waters: factors affecting public-supply-well vulnerability to contamination: understanding observed water quality and anticipating future water quality
As part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program, a study was conducted from 2001 to 2011 to shed light on factors that affect the vulnerability of water from public-supply wells to contamination (referred to hereafter as “public-supply-well vulnerability”). The study was designed as a follow-up to earlier NAWQA studies that found mixtures of...
Authors
Sandra M. Eberts, Mary Ann Thomas, Martha L. Jagucki
TracerLPM (Version 1): An Excel® workbook for interpreting groundwater age distributions from environmental tracer data TracerLPM (Version 1): An Excel® workbook for interpreting groundwater age distributions from environmental tracer data
TracerLPM is an interactive Excel® (2007 or later) workbook program for evaluating groundwater age distributions from environmental tracer data by using lumped parameter models (LPMs). Lumped parameter models are mathematical models of transport based on simplified aquifer geometry and flow configurations that account for effects of hydrodynamic dispersion or mixing within the aquifer...
Authors
Bryant C. Jurgens, J.K. Böhlke, Sandra M. Eberts
Assessing the vulnerability of public-supply wells to contamination: Rio Grande aquifer system in Albuquerque, New Mexico Assessing the vulnerability of public-supply wells to contamination: Rio Grande aquifer system in Albuquerque, New Mexico
This fact sheet highlights findings from the vulnerability study of a public-supply well in Albuquerque, New Mexico (hereafter referred to as “the study well”). The study well produces about 3,000 gallons of water per minute from the Rio Grande aquifer system. Water samples were collected at the study well, at two other nearby public-supply wells, and at monitoring wells installed in or...
Authors
Martha L. Jagucki, Laura M. Bexfield, Charles E. Heywood, Sandra M. Eberts
Assessing the vulnerability of public-supply wells to contamination—Edwards aquifer near San Antonio, Texas Assessing the vulnerability of public-supply wells to contamination—Edwards aquifer near San Antonio, Texas
This fact sheet highlights findings from the vulnerability study of a public-supply well field in San Antonio, Texas. The well field consists of six production wells that tap the Edwards aquifer. Typically, one or two wells are pumped at a time, yielding an average total of 20-21 million gallons per day. Water samples were collected from public-supply wells in the well field and from...
Authors
Martha L. Jagucki, MaryLynn Musgrove, Richard J. Lindgren, Lynne Fahlquist, Sandra M. Eberts
Modeling the potential impact of seasonal and inactive multi-aquifer wells on contaminant movement to public water-supply wells Modeling the potential impact of seasonal and inactive multi-aquifer wells on contaminant movement to public water-supply wells
Wells screened across multiple aquifers can provide pathways for the movement of surprisingly large volumes of groundwater to confined aquifers used for public water supply (PWS). Using a simple numerical model, we examine the impact of several pumping scenarios on leakage from an unconfined aquifer to a confined aquifer and conclude that a single inactive multi-aquifer well can...
Authors
R.L. Johnson, B.R. Clark, M.K. Landon, L. J. Kauffman, S. M. Eberts
Hydrogeologic settings and groundwater-flow simulations for regional investigations of the transport of anthropogenic and natural contaminants to public-supply wells—Investigations begun in 2004 Hydrogeologic settings and groundwater-flow simulations for regional investigations of the transport of anthropogenic and natural contaminants to public-supply wells—Investigations begun in 2004
A study of the Transport of Anthropogenic and Natural Contaminants to public-supply wells (TANC study) was begun in 2001 as part of the U.S. Geological Survey National Water-Quality Assessment (NAWQA) Program. The study was designed to shed light on factors that affect the vulnerability of groundwater and, more specifically, water from public-supply wells to contamination to provide a...
Authors
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.