Claudia C. Faunt (Former Employee)
Science and Products
Filter Total Items: 69
Application of MODFLOW’s farm process to California’s Central Valley Application of MODFLOW’s farm process to California’s Central Valley
Historically, California’s Central Valley has been one of the most productive agricultural regions in the world. The Central Valley also is rapidly becoming an important area for California’s expanding urban population. During 1980–2007, the population nearly doubled in the Central Valley, increasing the competition for water. Because of the importance of ground water in the Central...
Authors
Claudia C. Faunt, Randall Hanson, Wolfgang Schmid, Kenneth Belitz
Development of a model to assess ground-water availability in California's Central Valley Development of a model to assess ground-water availability in California's Central Valley
No abstract available.
Authors
Claudia C. Faunt, Randall Hanson, Kenneth Belitz
A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids
A flexible, robust method for linking parent (regional-scale) and child (local-scale) grids of locally refined models that use different numerical methods is developed based on a new, iterative ghost-node method. Tests are presented for two-dimensional and three-dimensional pumped systems that are homogeneous or that have simple heterogeneity. The parent and child grids are simulated...
Authors
J.E. Dickinson, S.C. James, S. Mehl, M. Hill, S. Leake, G.A. Zyvoloski, C.C. Faunt, A.-A. Eddebbarh
Ground-water modeling of the Death Valley Region, Nevada and California Ground-water modeling of the Death Valley Region, Nevada and California
The Death Valley regional ground-water flow system (DVRFS) of southern Nevada and eastern California covers an area of about 100,000 square kilometers and contains very complex geology and hydrology. Using a computer model to represent the complex system, the U.S. Geological Survey simulated ground-water flow in the Death Valley region for use with U.S. Department of Energy projects in...
Authors
W.R. Belcher, C.C. Faunt, D. Sweetkind, J.B. Blainey, C. San Juan, R. Laczniak, M. Hill
Hydrogeologic framework refinement, ground-water flow and storage, water-chemistry analyses, and water-budget components of the Yuma area, southwestern Arizona and southeastern California Hydrogeologic framework refinement, ground-water flow and storage, water-chemistry analyses, and water-budget components of the Yuma area, southwestern Arizona and southeastern California
The ground-water and surface-water system in the Yuma area in southwestern Arizona and southeastern California is managed intensely to meet water-delivery requirements of customers in the United States, to manage high ground-water levels in the valleys, and to maintain treaty-mandated water-quality and quantity requirements of Mexico. The following components in this report, which were...
Authors
Jesse Dickinson, Michael Land, Claudia C. Faunt, S. Leake, Eric Reichard, John Fleming, D. Pool
Physical and hydrochemical evidence of lake leakage near Jim Woodruff Lock and Dam and of ground-water inflow to Lake Seminole, and an assessment of karst features in and near the lake, southwestern Georgia and northwestern Florida Physical and hydrochemical evidence of lake leakage near Jim Woodruff Lock and Dam and of ground-water inflow to Lake Seminole, and an assessment of karst features in and near the lake, southwestern Georgia and northwestern Florida
Hydrogeologic data and water-chemistry analyses indicate that Lake Seminole leaks into the Upper Floridan aquifer near Jim Woodruff Lock and Dam, southwestern Georgia and northwestern Florida, and that ground water enters Lake Seminole along upstream reaches of the lake’s four impoundment arms (Chattahoochee and Flint Rivers, Spring Creek, and Fishpond Drain). Written accounts by U.S...
Authors
Lynn Torak, Dianna Crilley, Jaime Painter
A guide for using the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California A guide for using the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California
This report is a guide for executing numerical simulations with the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California using the U.S. Geological Survey modular finite-difference ground-water flow model, MODFLOW-2000. Model inputs, including observations of hydraulic head, discharge, and boundary flows, are summarized...
Authors
Joan Blainey, Claudia C. Faunt, Mary Hill
Occurrence and distribution of mercury in the surficial aquifer, Long Neck Peninsula, Sussex County, Delaware, 2003–04 Occurrence and distribution of mercury in the surficial aquifer, Long Neck Peninsula, Sussex County, Delaware, 2003–04
In January 2001, mercury (Hg) was detected (500 nanograms per liter, ng/L, or greater) in the distribution system of the Long Neck Water Company (LNWC), Pot Nets, Delaware. By April 2001, two LNWC production wells had been taken off-line because discharge concentrations of total mercury (HgT) either had exceeded or approached the Federal limit of 2,000 ng/L. From October 2003 through...
Authors
Michael Koterba, A. Scott Andres, Joseph Vrabel, Dianna Crilley, Zoltan Szabo, John DeWild, George Aiken, Betzaida Reyes-Padro
Modeling the Death Valley regional ground-water flow system Modeling the Death Valley regional ground-water flow system
The development of a regional ground-water flow model of the Death Valley region in the southwestern United States is discussed in the context of the fourteen guidelines of Hill. This application of the guidelines demonstrates how they may be used for model calibration and evaluation, and to direct further model development and data collection.
Authors
F. D’Agnese, C.C. Faunt, M. Hill
Documentation of the Santa Clara Valley regional ground-water/surface-water flow model, Santa Clara Valley, California Documentation of the Santa Clara Valley regional ground-water/surface-water flow model, Santa Clara Valley, California
The Santa Clara Valley is a long, narrow trough extending about 35 miles southeast from the southern end of San Francisco Bay where the regional alluvial-aquifer system has been a major source of water. Intensive agricultural and urban development throughout the 20th century and related ground-water development resulted in ground-water-level declines of more than 200 feet and land...
Authors
R. Hanson, Zhen Li, C.C. Faunt
Methods for using groundwater model predictions to guide hydrogeologic data collection, with application to the Death Valley regional groundwater flow system Methods for using groundwater model predictions to guide hydrogeologic data collection, with application to the Death Valley regional groundwater flow system
Calibrated models of groundwater systems can provide substantial information for guiding data collection. This work considers using such models to guide hydrogeologic data collection for improving model predictions by identifying model parameters that are most important to the predictions. Identification of these important parameters can help guide collection of field data about...
Authors
C. Tiedeman, M. Hill, F. D’Agnese, C.C. Faunt
The site-scale saturated zone flow model for Yucca Mountain: Calibration of different conceptual models and their impact on flow paths The site-scale saturated zone flow model for Yucca Mountain: Calibration of different conceptual models and their impact on flow paths
This paper presents several different conceptual models of the Large Hydraulic Gradient (LHG) region north of Yucca Mountain and describes the impact of those models on groundwater flow near the potential high-level repository site. The results are based on a numerical model of site-scale saturated zone beneath Yucca Mountain. This model is used for performance assessment predictions of
Authors
G. Zyvoloski, E. Kwicklis, A.-A. Eddebbarh, B. Arnold, C. Faunt, B.A. Robinson
Science and Products
Filter Total Items: 69
Application of MODFLOW’s farm process to California’s Central Valley Application of MODFLOW’s farm process to California’s Central Valley
Historically, California’s Central Valley has been one of the most productive agricultural regions in the world. The Central Valley also is rapidly becoming an important area for California’s expanding urban population. During 1980–2007, the population nearly doubled in the Central Valley, increasing the competition for water. Because of the importance of ground water in the Central...
Authors
Claudia C. Faunt, Randall Hanson, Wolfgang Schmid, Kenneth Belitz
Development of a model to assess ground-water availability in California's Central Valley Development of a model to assess ground-water availability in California's Central Valley
No abstract available.
Authors
Claudia C. Faunt, Randall Hanson, Kenneth Belitz
A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids A new ghost-node method for linking different models and initial investigations of heterogeneity and nonmatching grids
A flexible, robust method for linking parent (regional-scale) and child (local-scale) grids of locally refined models that use different numerical methods is developed based on a new, iterative ghost-node method. Tests are presented for two-dimensional and three-dimensional pumped systems that are homogeneous or that have simple heterogeneity. The parent and child grids are simulated...
Authors
J.E. Dickinson, S.C. James, S. Mehl, M. Hill, S. Leake, G.A. Zyvoloski, C.C. Faunt, A.-A. Eddebbarh
Ground-water modeling of the Death Valley Region, Nevada and California Ground-water modeling of the Death Valley Region, Nevada and California
The Death Valley regional ground-water flow system (DVRFS) of southern Nevada and eastern California covers an area of about 100,000 square kilometers and contains very complex geology and hydrology. Using a computer model to represent the complex system, the U.S. Geological Survey simulated ground-water flow in the Death Valley region for use with U.S. Department of Energy projects in...
Authors
W.R. Belcher, C.C. Faunt, D. Sweetkind, J.B. Blainey, C. San Juan, R. Laczniak, M. Hill
Hydrogeologic framework refinement, ground-water flow and storage, water-chemistry analyses, and water-budget components of the Yuma area, southwestern Arizona and southeastern California Hydrogeologic framework refinement, ground-water flow and storage, water-chemistry analyses, and water-budget components of the Yuma area, southwestern Arizona and southeastern California
The ground-water and surface-water system in the Yuma area in southwestern Arizona and southeastern California is managed intensely to meet water-delivery requirements of customers in the United States, to manage high ground-water levels in the valleys, and to maintain treaty-mandated water-quality and quantity requirements of Mexico. The following components in this report, which were...
Authors
Jesse Dickinson, Michael Land, Claudia C. Faunt, S. Leake, Eric Reichard, John Fleming, D. Pool
Physical and hydrochemical evidence of lake leakage near Jim Woodruff Lock and Dam and of ground-water inflow to Lake Seminole, and an assessment of karst features in and near the lake, southwestern Georgia and northwestern Florida Physical and hydrochemical evidence of lake leakage near Jim Woodruff Lock and Dam and of ground-water inflow to Lake Seminole, and an assessment of karst features in and near the lake, southwestern Georgia and northwestern Florida
Hydrogeologic data and water-chemistry analyses indicate that Lake Seminole leaks into the Upper Floridan aquifer near Jim Woodruff Lock and Dam, southwestern Georgia and northwestern Florida, and that ground water enters Lake Seminole along upstream reaches of the lake’s four impoundment arms (Chattahoochee and Flint Rivers, Spring Creek, and Fishpond Drain). Written accounts by U.S...
Authors
Lynn Torak, Dianna Crilley, Jaime Painter
A guide for using the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California A guide for using the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California
This report is a guide for executing numerical simulations with the transient ground-water flow model of the Death Valley regional ground-water flow system, Nevada and California using the U.S. Geological Survey modular finite-difference ground-water flow model, MODFLOW-2000. Model inputs, including observations of hydraulic head, discharge, and boundary flows, are summarized...
Authors
Joan Blainey, Claudia C. Faunt, Mary Hill
Occurrence and distribution of mercury in the surficial aquifer, Long Neck Peninsula, Sussex County, Delaware, 2003–04 Occurrence and distribution of mercury in the surficial aquifer, Long Neck Peninsula, Sussex County, Delaware, 2003–04
In January 2001, mercury (Hg) was detected (500 nanograms per liter, ng/L, or greater) in the distribution system of the Long Neck Water Company (LNWC), Pot Nets, Delaware. By April 2001, two LNWC production wells had been taken off-line because discharge concentrations of total mercury (HgT) either had exceeded or approached the Federal limit of 2,000 ng/L. From October 2003 through...
Authors
Michael Koterba, A. Scott Andres, Joseph Vrabel, Dianna Crilley, Zoltan Szabo, John DeWild, George Aiken, Betzaida Reyes-Padro
Modeling the Death Valley regional ground-water flow system Modeling the Death Valley regional ground-water flow system
The development of a regional ground-water flow model of the Death Valley region in the southwestern United States is discussed in the context of the fourteen guidelines of Hill. This application of the guidelines demonstrates how they may be used for model calibration and evaluation, and to direct further model development and data collection.
Authors
F. D’Agnese, C.C. Faunt, M. Hill
Documentation of the Santa Clara Valley regional ground-water/surface-water flow model, Santa Clara Valley, California Documentation of the Santa Clara Valley regional ground-water/surface-water flow model, Santa Clara Valley, California
The Santa Clara Valley is a long, narrow trough extending about 35 miles southeast from the southern end of San Francisco Bay where the regional alluvial-aquifer system has been a major source of water. Intensive agricultural and urban development throughout the 20th century and related ground-water development resulted in ground-water-level declines of more than 200 feet and land...
Authors
R. Hanson, Zhen Li, C.C. Faunt
Methods for using groundwater model predictions to guide hydrogeologic data collection, with application to the Death Valley regional groundwater flow system Methods for using groundwater model predictions to guide hydrogeologic data collection, with application to the Death Valley regional groundwater flow system
Calibrated models of groundwater systems can provide substantial information for guiding data collection. This work considers using such models to guide hydrogeologic data collection for improving model predictions by identifying model parameters that are most important to the predictions. Identification of these important parameters can help guide collection of field data about...
Authors
C. Tiedeman, M. Hill, F. D’Agnese, C.C. Faunt
The site-scale saturated zone flow model for Yucca Mountain: Calibration of different conceptual models and their impact on flow paths The site-scale saturated zone flow model for Yucca Mountain: Calibration of different conceptual models and their impact on flow paths
This paper presents several different conceptual models of the Large Hydraulic Gradient (LHG) region north of Yucca Mountain and describes the impact of those models on groundwater flow near the potential high-level repository site. The results are based on a numerical model of site-scale saturated zone beneath Yucca Mountain. This model is used for performance assessment predictions of
Authors
G. Zyvoloski, E. Kwicklis, A.-A. Eddebbarh, B. Arnold, C. Faunt, B.A. Robinson