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Linzy Foster

Linzy is a Public Information Officer in the Oklahoma-Texas Water Science Center. Her research interests include groundwater modeling and the application of uncertainty quantification to models.

Linzy Foster is a Civil Engineer (Hydrologist) with the USGS in Austin Texas. She joined the Oklahoma-Texas Water Science Center in 2012. She previously worked in Fort Lauderdale, Florida for the Florida Water Science Center from 2007-2012. Her research interests include groundwater and contaminant-transport modeling, saltwater intrusion modeling, application of uncertainty quantification techniques to models, and python code development.

Professional Experience

  • 2005-2007 Graduate Assistant, Auburn University
    2007-2012 U.S. Geological Survey, Florida Water Science Center, Fort Lauderdale, FL
    2012-active U.S. Geological Survey, Texas Water Science Center, Austin, Texas

Education and Certifications

  • M.S. in Civil Engineering, focus on Environmental Engineering, Auburn University, 2008
    B.A. in Mathematics, Maryville College, 2000

Science and Products

Filter Total Items: 46
Salado Creek above Salado, TX

Salado Creek Bacteria Source Tracking

THIS PROJECT WAS COMPLETED IN 2019.
By
Oklahoma-Texas Water Science Center
Salado Creek Bacteria Source Tracking

Salado Creek Bacteria Source Tracking

THIS PROJECT WAS COMPLETED IN 2019.
Learn More
Image from Barker Reservoir webcam

Oklahoma-Texas Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. All gaging station cameras in Oklahoma and Texas are listed on this page.
By
Oklahoma-Texas Water Science Center
Oklahoma-Texas Gaging Station Cameras

Oklahoma-Texas Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. All gaging station cameras in Oklahoma and Texas are listed on this page.
Learn More
Image from the Blanco River at Crabapple Road near Blanco, Tex. gaging station camera

Blanco River Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. Cameras on this page are near the Blanco River.
By
Oklahoma-Texas Water Science Center
Blanco River Gaging Station Cameras

Blanco River Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. Cameras on this page are near the Blanco River.
Learn More
Image from the webcam at Langham Creek at Addicks Reservoir outflow near Addicks, Tex.

Houston Area Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. Cameras on this page are in the Houston Area.
By
Oklahoma-Texas Water Science Center
Houston Area Gaging Station Cameras

Houston Area Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. Cameras on this page are in the Houston Area.
Learn More
Pecos River below Barstow Dam, Texas

Stream Science Capabilties

Rivers and streams play a vital role for communities and ecosystems across Oklahoma and Texas by providing water for drinking, recreation, and irrigation; recharging aquifers; and transporting sediment and nutrients. The USGS Oklahoma-Texas Water Science Center (OTWSC) collects data and has science projects at several all of these streams and their watersheds. Visit the links below for more...
By
Oklahoma-Texas Water Science Center
Stream Science Capabilties

Stream Science Capabilties

Rivers and streams play a vital role for communities and ecosystems across Oklahoma and Texas by providing water for drinking, recreation, and irrigation; recharging aquifers; and transporting sediment and nutrients. The USGS Oklahoma-Texas Water Science Center (OTWSC) collects data and has science projects at several all of these streams and their watersheds. Visit the links below for more...
Learn More
Rio Grande River

Stream Science in Oklahoma and Texas - Overview

Rivers and streams play a vital role for communities and ecosystems across Oklahoma and Texas by providing water for drinking, recreation, and irrigation; recharging aquifers; aquatic life; and transporting sediment and nutrients. The USGS Oklahoma-Texas Water Science Center (OTWSC) collects data and has science projects at several streams and their watersheds. Visit the links below for more...
By
Oklahoma-Texas Water Science Center
Stream Science in Oklahoma and Texas - Overview

Stream Science in Oklahoma and Texas - Overview

Rivers and streams play a vital role for communities and ecosystems across Oklahoma and Texas by providing water for drinking, recreation, and irrigation; recharging aquifers; aquatic life; and transporting sediment and nutrients. The USGS Oklahoma-Texas Water Science Center (OTWSC) collects data and has science projects at several streams and their watersheds. Visit the links below for more...
Learn More

MODFLOW-NWT model for extending the capture map concept to estimate discrete and risk-based streamflow depletion potential MODFLOW-NWT model for extending the capture map concept to estimate discrete and risk-based streamflow depletion potential

A previously developed groundwater flow model (https://doi.org/10.5066/P9051RUT) was slightly modified to estimate the risk-based discrete relation between groundwater extraction and surface-water/groundwater exchange. Previously, the concept of a ``capture map'' has been put forward as a means to effectively summarize this relation for decision-making consumption. While capture maps...
By
Oklahoma-Texas Water Science Center

MODFLOW-NWT model for risk-based decision-support groundwater modeling for the lower San Antonio River Basin, Texas, USA MODFLOW-NWT model for risk-based decision-support groundwater modeling for the lower San Antonio River Basin, Texas, USA

A MODFLOW-NWT groundwater/surface-water model was developed to evaluate the responses of low-flow conditions and groundwater levels within the lower San Antonio River Basin, Texas, USA under conditions of reduced recharge and increased groundwater withdrawals. There was concern that decreased recharge and increased groundwater withdrawals may adversely affect streamflow and groundwater...
By
Oklahoma-Texas Water Science Center

Towards reproducible environmental modeling for decision support: a worked example Towards reproducible environmental modeling for decision support: a worked example

Supporting datasets for the associated journal publication "Towards reproducible environmental modeling for decision support: a worked example". Includes source codes for the version of PEST++ and MODFLOW-2005 used, the pyEMU and FloPy python modules and the driver script "eaa.py". Also included are the existing MODFLOW-2005 models supplied the Edwards Aquifer Authority
By
Oklahoma-Texas Water Science Center

New insights into the Edwards Aquifer—Brackish-water simulation, drought, and the role of uncertainty analysis New insights into the Edwards Aquifer—Brackish-water simulation, drought, and the role of uncertainty analysis

The Edwards aquifer is an important water resource in south-central Texas, providing water for residents, businesses, and ecosystems. The aquifer is a highly complex karst system characterized by areas of rapid groundwater flow, faulted and fractured Cretaceous-age rocks, and multiple water-quality zones. Karst aquifer systems include soluble rocks such as limestone and dolomite that can...
Authors
Linzy K. Foster, Jeremy T. White
By
Water Resources Mission Area, Oklahoma-Texas Water Science Center

Updated numerical model with uncertainty assessment of 1950-56 drought conditions on brackish-water movement within the Edwards aquifer, San Antonio, Texas Updated numerical model with uncertainty assessment of 1950-56 drought conditions on brackish-water movement within the Edwards aquifer, San Antonio, Texas

In 2010, the U.S. Geological Survey, in cooperation with the San Antonio Water System, began a study to assess the brackish-water movement within the Edwards aquifer (more specifically the potential for brackish-water encroachment into wells near the interface between the freshwater and brackish-water transition zones, referred to in this report as the transition-zone interface) and...
Authors
Linzy K. Brakefield, Jeremy T. White, Natalie A. Houston, Jonathan V. Thomas
By
Water Resources Mission Area, Oklahoma-Texas Water Science Center

Estimation of capture zones and drawdown at the Northwest and West Well Fields, Miami-Dade County, Florida, using an unconstrained Monte Carlo analysis: recent (2004) and proposed conditions Estimation of capture zones and drawdown at the Northwest and West Well Fields, Miami-Dade County, Florida, using an unconstrained Monte Carlo analysis: recent (2004) and proposed conditions

Travel-time capture zones and drawdown for two production well fields, used for drinking-water supply in Miami-Dade County, southeastern Florida, were delineated by the U.S Geological Survey using an unconstrained Monte Carlo analysis. The well fields, designed to supply a combined total of approximately 250 million gallons of water per day, pump from the highly transmissive Biscayne...
Authors
Linzy K. Brakefield, Joseph D. Hughes, Christian D. Langevin, Kevin Chartier
By
Water Resources Mission Area, Oklahoma-Texas Water Science Center

Effect of hypersaline cooling canals on aquifer salinization Effect of hypersaline cooling canals on aquifer salinization

The combined effect of salinity and temperature on density-driven convection was evaluated in this study for a large (28 km2) cooling canal system (CCS) at a thermoelectric power plant in south Florida, USA. A two-dimensional cross-section model was used to evaluate the effects of hydraulic heterogeneities, cooling canal salinity, heat transport, and cooling canal geometry on aquifer...
Authors
Joseph D. Hughes, Christian D. Langevin, Linzy Brakefield-Goswami
By
Caribbean-Florida Water Science Center (CFWSC)

Non-USGS Publications**

Brakefield, L.K., 2008, Physical and Numerical Modeling of Buoyant Groundwater Plumes, M.S. Thesis, Auburn University, Auburn, Alabama. http://hdl.handle.net/10415/1038

**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: 46
Salado Creek above Salado, TX

Salado Creek Bacteria Source Tracking

THIS PROJECT WAS COMPLETED IN 2019.
By
Oklahoma-Texas Water Science Center
Salado Creek Bacteria Source Tracking

Salado Creek Bacteria Source Tracking

THIS PROJECT WAS COMPLETED IN 2019.
Learn More
Image from Barker Reservoir webcam

Oklahoma-Texas Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. All gaging station cameras in Oklahoma and Texas are listed on this page.
By
Oklahoma-Texas Water Science Center
Oklahoma-Texas Gaging Station Cameras

Oklahoma-Texas Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. All gaging station cameras in Oklahoma and Texas are listed on this page.
Learn More
Image from the Blanco River at Crabapple Road near Blanco, Tex. gaging station camera

Blanco River Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. Cameras on this page are near the Blanco River.
By
Oklahoma-Texas Water Science Center
Blanco River Gaging Station Cameras

Blanco River Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. Cameras on this page are near the Blanco River.
Learn More
Image from the webcam at Langham Creek at Addicks Reservoir outflow near Addicks, Tex.

Houston Area Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. Cameras on this page are in the Houston Area.
By
Oklahoma-Texas Water Science Center
Houston Area Gaging Station Cameras

Houston Area Gaging Station Cameras

A select number of USGS Oklahoma-Texas Water Science Center (OTWSC) gaging stations are equipped with cameras. Photos are taken at approximately 5 minute intervals. Cameras on this page are in the Houston Area.
Learn More
Pecos River below Barstow Dam, Texas

Stream Science Capabilties

Rivers and streams play a vital role for communities and ecosystems across Oklahoma and Texas by providing water for drinking, recreation, and irrigation; recharging aquifers; and transporting sediment and nutrients. The USGS Oklahoma-Texas Water Science Center (OTWSC) collects data and has science projects at several all of these streams and their watersheds. Visit the links below for more...
By
Oklahoma-Texas Water Science Center
Stream Science Capabilties

Stream Science Capabilties

Rivers and streams play a vital role for communities and ecosystems across Oklahoma and Texas by providing water for drinking, recreation, and irrigation; recharging aquifers; and transporting sediment and nutrients. The USGS Oklahoma-Texas Water Science Center (OTWSC) collects data and has science projects at several all of these streams and their watersheds. Visit the links below for more...
Learn More
Rio Grande River

Stream Science in Oklahoma and Texas - Overview

Rivers and streams play a vital role for communities and ecosystems across Oklahoma and Texas by providing water for drinking, recreation, and irrigation; recharging aquifers; aquatic life; and transporting sediment and nutrients. The USGS Oklahoma-Texas Water Science Center (OTWSC) collects data and has science projects at several streams and their watersheds. Visit the links below for more...
By
Oklahoma-Texas Water Science Center
Stream Science in Oklahoma and Texas - Overview

Stream Science in Oklahoma and Texas - Overview

Rivers and streams play a vital role for communities and ecosystems across Oklahoma and Texas by providing water for drinking, recreation, and irrigation; recharging aquifers; aquatic life; and transporting sediment and nutrients. The USGS Oklahoma-Texas Water Science Center (OTWSC) collects data and has science projects at several streams and their watersheds. Visit the links below for more...
Learn More

MODFLOW-NWT model for extending the capture map concept to estimate discrete and risk-based streamflow depletion potential MODFLOW-NWT model for extending the capture map concept to estimate discrete and risk-based streamflow depletion potential

A previously developed groundwater flow model (https://doi.org/10.5066/P9051RUT) was slightly modified to estimate the risk-based discrete relation between groundwater extraction and surface-water/groundwater exchange. Previously, the concept of a ``capture map'' has been put forward as a means to effectively summarize this relation for decision-making consumption. While capture maps...
By
Oklahoma-Texas Water Science Center

MODFLOW-NWT model for risk-based decision-support groundwater modeling for the lower San Antonio River Basin, Texas, USA MODFLOW-NWT model for risk-based decision-support groundwater modeling for the lower San Antonio River Basin, Texas, USA

A MODFLOW-NWT groundwater/surface-water model was developed to evaluate the responses of low-flow conditions and groundwater levels within the lower San Antonio River Basin, Texas, USA under conditions of reduced recharge and increased groundwater withdrawals. There was concern that decreased recharge and increased groundwater withdrawals may adversely affect streamflow and groundwater...
By
Oklahoma-Texas Water Science Center

Towards reproducible environmental modeling for decision support: a worked example Towards reproducible environmental modeling for decision support: a worked example

Supporting datasets for the associated journal publication "Towards reproducible environmental modeling for decision support: a worked example". Includes source codes for the version of PEST++ and MODFLOW-2005 used, the pyEMU and FloPy python modules and the driver script "eaa.py". Also included are the existing MODFLOW-2005 models supplied the Edwards Aquifer Authority
By
Oklahoma-Texas Water Science Center

New insights into the Edwards Aquifer—Brackish-water simulation, drought, and the role of uncertainty analysis New insights into the Edwards Aquifer—Brackish-water simulation, drought, and the role of uncertainty analysis

The Edwards aquifer is an important water resource in south-central Texas, providing water for residents, businesses, and ecosystems. The aquifer is a highly complex karst system characterized by areas of rapid groundwater flow, faulted and fractured Cretaceous-age rocks, and multiple water-quality zones. Karst aquifer systems include soluble rocks such as limestone and dolomite that can...
Authors
Linzy K. Foster, Jeremy T. White
By
Water Resources Mission Area, Oklahoma-Texas Water Science Center

Updated numerical model with uncertainty assessment of 1950-56 drought conditions on brackish-water movement within the Edwards aquifer, San Antonio, Texas Updated numerical model with uncertainty assessment of 1950-56 drought conditions on brackish-water movement within the Edwards aquifer, San Antonio, Texas

In 2010, the U.S. Geological Survey, in cooperation with the San Antonio Water System, began a study to assess the brackish-water movement within the Edwards aquifer (more specifically the potential for brackish-water encroachment into wells near the interface between the freshwater and brackish-water transition zones, referred to in this report as the transition-zone interface) and...
Authors
Linzy K. Brakefield, Jeremy T. White, Natalie A. Houston, Jonathan V. Thomas
By
Water Resources Mission Area, Oklahoma-Texas Water Science Center

Estimation of capture zones and drawdown at the Northwest and West Well Fields, Miami-Dade County, Florida, using an unconstrained Monte Carlo analysis: recent (2004) and proposed conditions Estimation of capture zones and drawdown at the Northwest and West Well Fields, Miami-Dade County, Florida, using an unconstrained Monte Carlo analysis: recent (2004) and proposed conditions

Travel-time capture zones and drawdown for two production well fields, used for drinking-water supply in Miami-Dade County, southeastern Florida, were delineated by the U.S Geological Survey using an unconstrained Monte Carlo analysis. The well fields, designed to supply a combined total of approximately 250 million gallons of water per day, pump from the highly transmissive Biscayne...
Authors
Linzy K. Brakefield, Joseph D. Hughes, Christian D. Langevin, Kevin Chartier
By
Water Resources Mission Area, Oklahoma-Texas Water Science Center

Effect of hypersaline cooling canals on aquifer salinization Effect of hypersaline cooling canals on aquifer salinization

The combined effect of salinity and temperature on density-driven convection was evaluated in this study for a large (28 km2) cooling canal system (CCS) at a thermoelectric power plant in south Florida, USA. A two-dimensional cross-section model was used to evaluate the effects of hydraulic heterogeneities, cooling canal salinity, heat transport, and cooling canal geometry on aquifer...
Authors
Joseph D. Hughes, Christian D. Langevin, Linzy Brakefield-Goswami
By
Caribbean-Florida Water Science Center (CFWSC)

Non-USGS Publications**

Brakefield, L.K., 2008, Physical and Numerical Modeling of Buoyant Groundwater Plumes, M.S. Thesis, Auburn University, Auburn, Alabama. http://hdl.handle.net/10415/1038

**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.

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