Steven Phillips (Former Employee)
Science and Products
Filter Total Items: 22
Estimation of a water budget for 1972-2000 for the Grasslands Area, central part of the Western San Joaquin Valley, California
Equitable implementation of regulations restricting discharges from agricultural drains into the San Joaquin River requires a greater understanding of the influence of extreme precipitation events on the ground-water flow system. As part of a larger investigation, this study estimated ground-water recharge and ground-water pumpage, two important components of the water budget in the Grasslands dra
Authors
Charles F. Brush, Kenneth Belitz, Steven P. Phillips
Water-Quality Assessment of the San Joaquin-Tulare Basins: Entering a new decade
In 1991, the National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey began to address the need for consistent and scientifically sound information for managing the Nation's water resources. The long-term goals of this program are to assess the status of the quality of freshwater streams and aquifers, to describe trends or changes in water quality over time, and to provide a
Authors
Jo Ann M. Gronberg, Charles R. Kratzer, Karen R. Burow, Joseph L. Domagalski, Steven P. Phillips
Determination of specific yield and water-table changes using temporal microgravity surveys collected during the second injection, storage, and recovery test at Lancaster, Antelope Valley, California, November 1996 through April 1997
To evaluate the feasibility of artificially recharging the ground-water system in the Lancaster area of the Antelope Valley, California, the U.S. Geological Survey, in cooperation with the Los Angeles County Department of Public Works and the Antelope Valley-East Kern Water Agency, conducted a series of injection, storage, and recovery tests between September 1995 and September 1998. A key compone
Authors
James F. Howle, Steven P. Phillips, Roger P. Denlinger, Loren F. Metzger
Simulation of ground-water flow and land subsidence in the Antelope Valley ground-water basin, California
Antelope Valley, California, is a topographically closed basin in the western part of the Mojave Desert, about 50 miles northeast of Los Angeles. The Antelope Valley ground-water basin is about 940 square miles and is separated from the northern part of Antelope Valley by faults and low-lying hills. Prior to 1972, ground water provided more than 90 percent of the total water supply in the valley;
Authors
David A. Leighton, Steven P. Phillips
Analysis of tests of subsurface injection, storage, and recovery of freshwater in Lancaster, Antelope Valley, California
Ground-water levels in Lancaster, California, declined more than 200 feet during the 20th century, resulting in reduced ground-water supplies and more than 6 feet of land subsidence. Facing continuing population growth, water managers are seeking solutions to these problems. Injection of imported, treated fresh water into the aquifer system when it is most available and least expensive, for later
Authors
Steven P. Phillips, Carl S. Carlson, Loren F. Metzger, James F. Howle, Devin L. Galloway, Michelle Sneed, Marti E. Ikehara, Kenneth W. Hudnut, Nancy E. King
Regional water table (1996) and water-table changes in the Antelope Valley ground-water basin, California
No abstract available.
Authors
Carl S. Carlson, David A. Leighton, Steven P. Phillips, Loren F. Metzger
Water-level changes (1975-98) in the Antelope Valley, California
Antelope Valley is in the western part of the Mojave Desert in southern California, about 50 mi northeast of Los Angeles. Between 1975 and 1998, water levels in the valley have changed in response to a shift in ground-water use from agricultural to urban, declining in some areas and rising in others. A study to document these changes was conducted by the U.S. Geological Survey in cooperation with
Authors
Carl S. Carlson, Steven P. Phillips
Land use and water use in the Antelope Valley, California
Urban land use and water use in the Antelope Valley, California, have increased significantly since development of the valley began in the late 1800's.. Ground water has been a major source of water in this area because of limited local surface-water resources. Ground-water pumpage is reported to have increased from about 29,000 acre-feet in 1919 to about 400,000 acre-feet in the 1950's. Completio
Authors
William E. Templin, Steven P. Phillips, Daniel E. Cherry, Myrna L. DeBortoli, T.C. Haltom, Kelly R. McPherson, C.A. Mrozek
Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California
The occurrence of selenium in agricultural drain water in the central part of the western San Joaquin Valley, California, has focused concern on strategies for managing shallow, saline ground water. To assess alternatives to agricultural drains, a three-dimensional, finite-difference numerical model of the regional groundwater flow system was developed. This report documents the mathematical appro
Authors
Kenneth Belitz, Steven P. Phillips, Jo Ann M. Gronberg
Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California
The occurrence of selenium in agricultural drain water from the western San Joaquin Valley, California, has focused concern on the semiconfined ground-water flow system, which is underlain by the Corcoran Clay Member of the Tulare Formation. A two-step procedure is used to calibrate a preliminary model of the system for the purpose of determining the steady-state hydraulic properties. Horizontal a
Authors
Steven P. Phillips, Kenneth Belitz
Science and Products
Filter Total Items: 22
Estimation of a water budget for 1972-2000 for the Grasslands Area, central part of the Western San Joaquin Valley, California
Equitable implementation of regulations restricting discharges from agricultural drains into the San Joaquin River requires a greater understanding of the influence of extreme precipitation events on the ground-water flow system. As part of a larger investigation, this study estimated ground-water recharge and ground-water pumpage, two important components of the water budget in the Grasslands dra
Authors
Charles F. Brush, Kenneth Belitz, Steven P. Phillips
Water-Quality Assessment of the San Joaquin-Tulare Basins: Entering a new decade
In 1991, the National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey began to address the need for consistent and scientifically sound information for managing the Nation's water resources. The long-term goals of this program are to assess the status of the quality of freshwater streams and aquifers, to describe trends or changes in water quality over time, and to provide a
Authors
Jo Ann M. Gronberg, Charles R. Kratzer, Karen R. Burow, Joseph L. Domagalski, Steven P. Phillips
Determination of specific yield and water-table changes using temporal microgravity surveys collected during the second injection, storage, and recovery test at Lancaster, Antelope Valley, California, November 1996 through April 1997
To evaluate the feasibility of artificially recharging the ground-water system in the Lancaster area of the Antelope Valley, California, the U.S. Geological Survey, in cooperation with the Los Angeles County Department of Public Works and the Antelope Valley-East Kern Water Agency, conducted a series of injection, storage, and recovery tests between September 1995 and September 1998. A key compone
Authors
James F. Howle, Steven P. Phillips, Roger P. Denlinger, Loren F. Metzger
Simulation of ground-water flow and land subsidence in the Antelope Valley ground-water basin, California
Antelope Valley, California, is a topographically closed basin in the western part of the Mojave Desert, about 50 miles northeast of Los Angeles. The Antelope Valley ground-water basin is about 940 square miles and is separated from the northern part of Antelope Valley by faults and low-lying hills. Prior to 1972, ground water provided more than 90 percent of the total water supply in the valley;
Authors
David A. Leighton, Steven P. Phillips
Analysis of tests of subsurface injection, storage, and recovery of freshwater in Lancaster, Antelope Valley, California
Ground-water levels in Lancaster, California, declined more than 200 feet during the 20th century, resulting in reduced ground-water supplies and more than 6 feet of land subsidence. Facing continuing population growth, water managers are seeking solutions to these problems. Injection of imported, treated fresh water into the aquifer system when it is most available and least expensive, for later
Authors
Steven P. Phillips, Carl S. Carlson, Loren F. Metzger, James F. Howle, Devin L. Galloway, Michelle Sneed, Marti E. Ikehara, Kenneth W. Hudnut, Nancy E. King
Regional water table (1996) and water-table changes in the Antelope Valley ground-water basin, California
No abstract available.
Authors
Carl S. Carlson, David A. Leighton, Steven P. Phillips, Loren F. Metzger
Water-level changes (1975-98) in the Antelope Valley, California
Antelope Valley is in the western part of the Mojave Desert in southern California, about 50 mi northeast of Los Angeles. Between 1975 and 1998, water levels in the valley have changed in response to a shift in ground-water use from agricultural to urban, declining in some areas and rising in others. A study to document these changes was conducted by the U.S. Geological Survey in cooperation with
Authors
Carl S. Carlson, Steven P. Phillips
Land use and water use in the Antelope Valley, California
Urban land use and water use in the Antelope Valley, California, have increased significantly since development of the valley began in the late 1800's.. Ground water has been a major source of water in this area because of limited local surface-water resources. Ground-water pumpage is reported to have increased from about 29,000 acre-feet in 1919 to about 400,000 acre-feet in the 1950's. Completio
Authors
William E. Templin, Steven P. Phillips, Daniel E. Cherry, Myrna L. DeBortoli, T.C. Haltom, Kelly R. McPherson, C.A. Mrozek
Numerical simulation of ground-water flow in the central part of the western San Joaquin Valley, California
The occurrence of selenium in agricultural drain water in the central part of the western San Joaquin Valley, California, has focused concern on strategies for managing shallow, saline ground water. To assess alternatives to agricultural drains, a three-dimensional, finite-difference numerical model of the regional groundwater flow system was developed. This report documents the mathematical appro
Authors
Kenneth Belitz, Steven P. Phillips, Jo Ann M. Gronberg
Calibration of a texture-based model of a ground-water flow system, western San Joaquin Valley, California
The occurrence of selenium in agricultural drain water from the western San Joaquin Valley, California, has focused concern on the semiconfined ground-water flow system, which is underlain by the Corcoran Clay Member of the Tulare Formation. A two-step procedure is used to calibrate a preliminary model of the system for the purpose of determining the steady-state hydraulic properties. Horizontal a
Authors
Steven P. Phillips, Kenneth Belitz