Claudia C. Faunt (Former Employee)
Science and Products
Filter Total Items: 69
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 B. Blainey, Claudia C. Faunt, Mary C. 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 T. Koterba, A. Scott Andres, Joseph Vrabel, Dianna M. Crilley, Zoltan Szabo, John F. DeWild, George R. 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. A. D’Agnese, C.C. Faunt, M. C. 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. T. 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. R. Tiedeman, M. C. Hill, F. A. 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
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 B. Blainey, Claudia C. Faunt, Mary C. 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 T. Koterba, A. Scott Andres, Joseph Vrabel, Dianna M. Crilley, Zoltan Szabo, John F. DeWild, George R. 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. A. D’Agnese, C.C. Faunt, M. C. 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. T. 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. R. Tiedeman, M. C. Hill, F. A. 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