Michael T Wright
MIchael Wright is a Hydrologist at the California Water Science Center.
Science and Products
Filter Total Items: 23
Assessing the solubility controls on vanadium in groundwater, northeastern San Joaquin Valley, CA
The solubility controls on vanadium (V) in groundwater were studied due to concerns over possible harmful health effects of ingesting V in drinking water. Vanadium concentrations in the northeastern San Joaquin Valley ranged from 25 μg/L) and lowest in samples collected from anoxic groundwater (70% < 0.8 μg/L). In oxic groundwater, speciation modeling (SM) using PHREEQC predicted that V exists pr
Authors
Michael T. Wright, Kenneth G. Stollenwerk, Kenneth Belitz
Groundwater-quality data in the Borrego Valley, Central Desert, and Low-Use Basins of the Mojave and Sonoran Deserts study unit, 2008-2010--Results from the California GAMA Program
Groundwater quality in the 12,103-square-mile Borrego Valley, Central Desert, and Low-Use Basins of the Mojave and Sonoran Deserts (CLUB) study unit was investigated by the U.S. Geological Survey (USGS) from December 2008 to March 2010, as part of the California State Water Resources Control Board (SWRCB) Groundwater Ambient Monitoring and Assessment (GAMA) Program's Priority Basin Project (PBP).
Authors
Timothy M. Mathany, Michael T. Wright, Brandon S. Beuttel, Kenneth Belitz
Groundwater quality in the San Diego Drainages Hydrogeologic Province, California
More than 40 percent of California's drinking water is from groundwater. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to groundwater-quality information. The San Diego D
Authors
Michael T. Wright, Kenneth Belitz
Status and understanding of groundwater quality in the San Diego Drainages Hydrogeologic Province, 2004: California GAMA Priority Basin Project
Groundwater quality in the approximately 3,900-square-mile (mi2) San Diego Drainages Hydrogeologic Province (hereinafter San Diego) study unit was investigated from May through July 2004 as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study unit is located in southwestern California in the counties of San Diego, Riverside, and Orange.
Authors
Michael T. Wright, Kenneth Belitz
Groundwater-quality data in the Colorado River study unit, 2007: Results from the California GAMA Program
Groundwater quality in the 188-square-mile Colorado River Study unit (COLOR) was investigated October through December 2007 as part of the Priority Basin Project of the California State Water Resources Control Board (SWRCB) Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project was developed in response to the Groundwater Quality Monitoring Act of 2001, and t
Authors
Dara A. Goldrath, Michael T. Wright, Kenneth Belitz
Factors controlling the regional distribution of vanadium in ground water
Although the ingestion of vanadium (V) in drinking water may have possible adverse health effects, there have been relatively few studies of V in groundwater. Given the importance of groundwater as a source of drinking water in many areas of the world, this study examines the potential sources and geochemical processes that control the distribution of V in groundwater on a regional scale. Potentia
Authors
Michael T. Wright, Kenneth Belitz
Ground-Water Quality Data in the Coachella Valley Study Unit, 2007: Results from the California GAMA Program
Ground-water quality in the approximately 820 square-mile Coachella Valley Study Unit (COA) was investigated during February and March 2007 as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project was developed in response to the Groundwater Quality Monitoring Act of 2001, and is being conducted by the U.S. Geologica
Authors
Dara A. Goldrath, Michael T. Wright, Kenneth Belitz
California GAMA program: ground-water quality data in the San Diego drainages hydrogeologic province, California, 2004
Because of concerns over ground-water quality, the California State Water Resources Control Board (SWRCB), in collaboration with the U.S. Geological Survey and Lawrence Livermore National Laboratory, has implemented the Ground-Water Ambient Monitoring and Assessment (GAMA) Program. A primary objective of the program is to provide a current assessment of ground-water quality in areas where public s
Authors
Michael T. Wright, Kenneth Belitz, Carmen A. Burton
Occurrence and distribution of pesticide compounds in surface water of the Santa Ana basin, California, 1998-2001
A study of the occurrence and distribution of pesticide compounds in surface water of the highly urbanized Santa Ana Basin, California, was done as part of the U.S. Geological Survey's National Water-Quality Assessment Program (NAWQA). One-hundred and forty-eight samples were collected from 23 sites, and analyzed for pesticide compounds during the study period from November 1998 to September 2001
Authors
Robert Kent, Kenneth Belitz, Andrea J. Altmann, Michael T. Wright, Gregory O. Mendez
Evaluation of volatile organic compounds in two Mojave Desert basins-Mojave River and Antelope Valley-in San Bernardino, Los Angeles, and Kern Counties, California, June-October 2002
The California Aquifer Susceptibility Assessment of the Ground-Water Ambient Monitoring and Assessment Program was developed to assess water quality and susceptibility of ground-water resources to contamination from surficial sources. This study focuses on the Mojave River and the Antelope Valley ground-water basins in southern California.
Volatile organic compound (VOC) data were evaluated in
Authors
Jill N. Densmore, Kenneth Belitz, Michael T. Wright, Barbara J. Dawson, Tyler D. Johnson
Assessing the susceptibility to contamination of two aquifer systems used for public water supply in the Modesto and Fresno metropolitan areas, California, 2001 and 2002
Ground-water samples were collected from 90 active public supply wells in the Fresno and Modesto metropolitan areas as part of the California Aquifer Susceptibility (CAS) program. The CAS program was formed to examine the susceptibility to contamination of aquifers that are tapped by public supply wells to serve the citizens of California. The objectives of the program are twofold: (1) to evaluate
Authors
Michael T. Wright, Kenneth Belitz, Tyler D. Johnson
Non-USGS Publications**
Michael T. Wright, David R. Parker, and Christopher Amrhein 2003 Critical Evaluation of the Ability of Sequential Extraction Procedures to Quantify Discrete Forms of Selenium in Sediments and Soils Environmental Science & Technology 37 (20), 4709-4716
**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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Filter Total Items: 23
Assessing the solubility controls on vanadium in groundwater, northeastern San Joaquin Valley, CA
The solubility controls on vanadium (V) in groundwater were studied due to concerns over possible harmful health effects of ingesting V in drinking water. Vanadium concentrations in the northeastern San Joaquin Valley ranged from 25 μg/L) and lowest in samples collected from anoxic groundwater (70% < 0.8 μg/L). In oxic groundwater, speciation modeling (SM) using PHREEQC predicted that V exists prAuthorsMichael T. Wright, Kenneth G. Stollenwerk, Kenneth BelitzGroundwater-quality data in the Borrego Valley, Central Desert, and Low-Use Basins of the Mojave and Sonoran Deserts study unit, 2008-2010--Results from the California GAMA Program
Groundwater quality in the 12,103-square-mile Borrego Valley, Central Desert, and Low-Use Basins of the Mojave and Sonoran Deserts (CLUB) study unit was investigated by the U.S. Geological Survey (USGS) from December 2008 to March 2010, as part of the California State Water Resources Control Board (SWRCB) Groundwater Ambient Monitoring and Assessment (GAMA) Program's Priority Basin Project (PBP).AuthorsTimothy M. Mathany, Michael T. Wright, Brandon S. Beuttel, Kenneth BelitzGroundwater quality in the San Diego Drainages Hydrogeologic Province, California
More than 40 percent of California's drinking water is from groundwater. To protect this vital resource, the State of California created the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The Priority Basin Project of the GAMA Program provides a comprehensive assessment of the State's groundwater quality and increases public access to groundwater-quality information. The San Diego DAuthorsMichael T. Wright, Kenneth BelitzStatus and understanding of groundwater quality in the San Diego Drainages Hydrogeologic Province, 2004: California GAMA Priority Basin Project
Groundwater quality in the approximately 3,900-square-mile (mi2) San Diego Drainages Hydrogeologic Province (hereinafter San Diego) study unit was investigated from May through July 2004 as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The study unit is located in southwestern California in the counties of San Diego, Riverside, and Orange.AuthorsMichael T. Wright, Kenneth BelitzGroundwater-quality data in the Colorado River study unit, 2007: Results from the California GAMA Program
Groundwater quality in the 188-square-mile Colorado River Study unit (COLOR) was investigated October through December 2007 as part of the Priority Basin Project of the California State Water Resources Control Board (SWRCB) Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project was developed in response to the Groundwater Quality Monitoring Act of 2001, and tAuthorsDara A. Goldrath, Michael T. Wright, Kenneth BelitzFactors controlling the regional distribution of vanadium in ground water
Although the ingestion of vanadium (V) in drinking water may have possible adverse health effects, there have been relatively few studies of V in groundwater. Given the importance of groundwater as a source of drinking water in many areas of the world, this study examines the potential sources and geochemical processes that control the distribution of V in groundwater on a regional scale. PotentiaAuthorsMichael T. Wright, Kenneth BelitzGround-Water Quality Data in the Coachella Valley Study Unit, 2007: Results from the California GAMA Program
Ground-water quality in the approximately 820 square-mile Coachella Valley Study Unit (COA) was investigated during February and March 2007 as part of the Priority Basin Project of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. The GAMA Priority Basin Project was developed in response to the Groundwater Quality Monitoring Act of 2001, and is being conducted by the U.S. GeologicaAuthorsDara A. Goldrath, Michael T. Wright, Kenneth BelitzCalifornia GAMA program: ground-water quality data in the San Diego drainages hydrogeologic province, California, 2004
Because of concerns over ground-water quality, the California State Water Resources Control Board (SWRCB), in collaboration with the U.S. Geological Survey and Lawrence Livermore National Laboratory, has implemented the Ground-Water Ambient Monitoring and Assessment (GAMA) Program. A primary objective of the program is to provide a current assessment of ground-water quality in areas where public sAuthorsMichael T. Wright, Kenneth Belitz, Carmen A. BurtonOccurrence and distribution of pesticide compounds in surface water of the Santa Ana basin, California, 1998-2001
A study of the occurrence and distribution of pesticide compounds in surface water of the highly urbanized Santa Ana Basin, California, was done as part of the U.S. Geological Survey's National Water-Quality Assessment Program (NAWQA). One-hundred and forty-eight samples were collected from 23 sites, and analyzed for pesticide compounds during the study period from November 1998 to September 2001AuthorsRobert Kent, Kenneth Belitz, Andrea J. Altmann, Michael T. Wright, Gregory O. MendezEvaluation of volatile organic compounds in two Mojave Desert basins-Mojave River and Antelope Valley-in San Bernardino, Los Angeles, and Kern Counties, California, June-October 2002
The California Aquifer Susceptibility Assessment of the Ground-Water Ambient Monitoring and Assessment Program was developed to assess water quality and susceptibility of ground-water resources to contamination from surficial sources. This study focuses on the Mojave River and the Antelope Valley ground-water basins in southern California. Volatile organic compound (VOC) data were evaluated inAuthorsJill N. Densmore, Kenneth Belitz, Michael T. Wright, Barbara J. Dawson, Tyler D. JohnsonAssessing the susceptibility to contamination of two aquifer systems used for public water supply in the Modesto and Fresno metropolitan areas, California, 2001 and 2002
Ground-water samples were collected from 90 active public supply wells in the Fresno and Modesto metropolitan areas as part of the California Aquifer Susceptibility (CAS) program. The CAS program was formed to examine the susceptibility to contamination of aquifers that are tapped by public supply wells to serve the citizens of California. The objectives of the program are twofold: (1) to evaluateAuthorsMichael T. Wright, Kenneth Belitz, Tyler D. JohnsonNon-USGS Publications**
Michael T. Wright, David R. Parker, and Christopher Amrhein 2003 Critical Evaluation of the Ability of Sequential Extraction Procedures to Quantify Discrete Forms of Selenium in Sediments and Soils Environmental Science & Technology 37 (20), 4709-4716**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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