Skip to main content
U.S. flag

An official website of the United States government

Eric Reichard (Former Employee)

Science and Products

Filter Total Items: 26

Emergency use of groundwater as a backup supply: Quantifying hydraulic impacts and economic benefits Emergency use of groundwater as a backup supply: Quantifying hydraulic impacts and economic benefits

Groundwater can play an important role in water‐supply emergency planning. A framework is presented for assessing the hydraulic impacts and associated costs of using groundwater as a backup supply when imported‐water deliveries are disrupted, and for quantifying the emergency benefits of groundwater management strategies that enable better response to such disruptions. Response functions...
Authors
Eric G. Reichard, Zhen Li, Caroline Hermans
By
Water Resources Mission Area, California Water Science Center

Saltwater intrusion in coastal regions of North America Saltwater intrusion in coastal regions of North America

Saltwater has intruded into many of the coastal aquifers of the United States, Mexico, and Canada, but the extent of saltwater intrusion varies widely among localities and hydrogeologic settings. In many instances, the area contaminated by saltwater is limited to small parts of an aquifer and to specific wells and has had little or no effect on overall groundwater supplies; in other...
Authors
Paul M. Barlow, Eric G. Reichard
By
Water Resources Mission Area, Groundwater and Streamflow Information Program

Sample collection of ash and burned soils from the October 2007 southern California Wildfires Sample collection of ash and burned soils from the October 2007 southern California Wildfires

Between November 2 through 9, 2007 scientists from the U.S. Geological Survey (USGS) collected samples of ash and burned soils from 28 sites in six areas burned as a result of the Southern California wildfires of October 2007, including the Harris, Witch, Santiago, Ammo, Canyon, and Grass Valley Fires. The primary goal of this sampling and analysis effort was to understand how...
Authors
Todd M. Hoefen, Raymond F. Kokaly, Deborah A. Martin, Carlton J. Rochester, Geoffrey S. Plumlee, Greg Mendez, Eric G. Reichard, Robert N. Fisher
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Spectroscopy Lab

Comparison of groundwater flow in Southern California coastal aquifers Comparison of groundwater flow in Southern California coastal aquifers

Development of the coastal aquifer systems of Southern California has resulted in overdraft, changes in streamflow, seawater intrusion, land subsidence, increased vertical flow between aquifers, and a redirection of regional flow toward pumping centers. These water-management challenges can be more effectively addressed by incorporating new understanding of the geologic, hydrologic, and
Authors
Randall T. Hanson, John A. Izbicki, Eric G. Reichard, Brian D. Edwards, Michael Land, Peter Martin
By
Water Resources Mission Area, Pacific Coastal and Marine Science Center, California Water Science Center

Stratigraphic controls on saltwater intrusion in the Dominguez Gap area of coastal Los Angeles Stratigraphic controls on saltwater intrusion in the Dominguez Gap area of coastal Los Angeles

The Los Angeles Basin is a densely populated coastal area that significantly depends on groundwater. A part of this groundwater supply is at risk from saltwater intrusion—the impetus for this study. High-resolution seismic-reflection data collected from the Los Angeles–Long Beach Harbor Complex have been combined with borehole geophysical and descriptive geological data from four nearby...
Authors
Brian D. Edwards, Kenneth D. Ehman, Daniel J. Ponti, Eric G. Reichard, John Tinsley, Robert J. Rosenbauer, Michael T. Land
By
Water Resources Mission Area, Natural Hazards Mission Area, Earthquake Hazards Program, California Water Science Center, Earthquake Science Center, Pacific Coastal and Marine Science Center

Characteristics of Southern California coastal aquifer systems Characteristics of Southern California coastal aquifer systems

Most groundwater produced within coastal Southern California occurs within three main types of siliciclastic basins: (1) deep (>600 m), elongate basins of the Transverse Ranges Physiographic Province, where basin axes and related fluvial systems strike parallel to tectonic structure, (2) deep (>6000 m), broad basins of the Los Angeles and Orange County coastal plains in the northern part...
Authors
B. D. Edwards, R. T. Hanson, E.G. Reichard, T.A. Johnson
map showing groundwater management activities, including injection barrier projects, and the location of spreading grounds

Geohydrologic Study of the Central and West Coast Basins of Los Angeles County

Using the new information, along with the recently acquired seismic reflection data, USGS scientists and co-workers have been able to develop a much more detailed understanding of the stratigraphy and structure of the Central and West Coast Basins.
By
California Water Science Center
Geohydrologic Study of the Central and West Coast Basins of Los Angeles County

Geohydrologic Study of the Central and West Coast Basins of Los Angeles County

Using the new information, along with the recently acquired seismic reflection data, USGS scientists and co-workers have been able to develop a much more detailed understanding of the stratigraphy and structure of the Central and West Coast Basins.
Learn More

Science and Products

Filter Total Items: 26

Emergency use of groundwater as a backup supply: Quantifying hydraulic impacts and economic benefits Emergency use of groundwater as a backup supply: Quantifying hydraulic impacts and economic benefits

Groundwater can play an important role in water‐supply emergency planning. A framework is presented for assessing the hydraulic impacts and associated costs of using groundwater as a backup supply when imported‐water deliveries are disrupted, and for quantifying the emergency benefits of groundwater management strategies that enable better response to such disruptions. Response functions...
Authors
Eric G. Reichard, Zhen Li, Caroline Hermans
By
Water Resources Mission Area, California Water Science Center

Saltwater intrusion in coastal regions of North America Saltwater intrusion in coastal regions of North America

Saltwater has intruded into many of the coastal aquifers of the United States, Mexico, and Canada, but the extent of saltwater intrusion varies widely among localities and hydrogeologic settings. In many instances, the area contaminated by saltwater is limited to small parts of an aquifer and to specific wells and has had little or no effect on overall groundwater supplies; in other...
Authors
Paul M. Barlow, Eric G. Reichard
By
Water Resources Mission Area, Groundwater and Streamflow Information Program

Sample collection of ash and burned soils from the October 2007 southern California Wildfires Sample collection of ash and burned soils from the October 2007 southern California Wildfires

Between November 2 through 9, 2007 scientists from the U.S. Geological Survey (USGS) collected samples of ash and burned soils from 28 sites in six areas burned as a result of the Southern California wildfires of October 2007, including the Harris, Witch, Santiago, Ammo, Canyon, and Grass Valley Fires. The primary goal of this sampling and analysis effort was to understand how...
Authors
Todd M. Hoefen, Raymond F. Kokaly, Deborah A. Martin, Carlton J. Rochester, Geoffrey S. Plumlee, Greg Mendez, Eric G. Reichard, Robert N. Fisher
By
Mineral Resources Program, Geology, Geophysics, and Geochemistry Science Center, Spectroscopy Lab

Comparison of groundwater flow in Southern California coastal aquifers Comparison of groundwater flow in Southern California coastal aquifers

Development of the coastal aquifer systems of Southern California has resulted in overdraft, changes in streamflow, seawater intrusion, land subsidence, increased vertical flow between aquifers, and a redirection of regional flow toward pumping centers. These water-management challenges can be more effectively addressed by incorporating new understanding of the geologic, hydrologic, and
Authors
Randall T. Hanson, John A. Izbicki, Eric G. Reichard, Brian D. Edwards, Michael Land, Peter Martin
By
Water Resources Mission Area, Pacific Coastal and Marine Science Center, California Water Science Center

Stratigraphic controls on saltwater intrusion in the Dominguez Gap area of coastal Los Angeles Stratigraphic controls on saltwater intrusion in the Dominguez Gap area of coastal Los Angeles

The Los Angeles Basin is a densely populated coastal area that significantly depends on groundwater. A part of this groundwater supply is at risk from saltwater intrusion—the impetus for this study. High-resolution seismic-reflection data collected from the Los Angeles–Long Beach Harbor Complex have been combined with borehole geophysical and descriptive geological data from four nearby...
Authors
Brian D. Edwards, Kenneth D. Ehman, Daniel J. Ponti, Eric G. Reichard, John Tinsley, Robert J. Rosenbauer, Michael T. Land
By
Water Resources Mission Area, Natural Hazards Mission Area, Earthquake Hazards Program, California Water Science Center, Earthquake Science Center, Pacific Coastal and Marine Science Center

Characteristics of Southern California coastal aquifer systems Characteristics of Southern California coastal aquifer systems

Most groundwater produced within coastal Southern California occurs within three main types of siliciclastic basins: (1) deep (>600 m), elongate basins of the Transverse Ranges Physiographic Province, where basin axes and related fluvial systems strike parallel to tectonic structure, (2) deep (>6000 m), broad basins of the Los Angeles and Orange County coastal plains in the northern part...
Authors
B. D. Edwards, R. T. Hanson, E.G. Reichard, T.A. Johnson
map showing groundwater management activities, including injection barrier projects, and the location of spreading grounds

Geohydrologic Study of the Central and West Coast Basins of Los Angeles County

Using the new information, along with the recently acquired seismic reflection data, USGS scientists and co-workers have been able to develop a much more detailed understanding of the stratigraphy and structure of the Central and West Coast Basins.
By
California Water Science Center
Geohydrologic Study of the Central and West Coast Basins of Los Angeles County

Geohydrologic Study of the Central and West Coast Basins of Los Angeles County

Using the new information, along with the recently acquired seismic reflection data, USGS scientists and co-workers have been able to develop a much more detailed understanding of the stratigraphy and structure of the Central and West Coast Basins.
Learn More
Was this page helpful?