David Bender (Former Employee)
Science and Products
Filter Total Items: 17
Quality of volatile organic compound data from groundwater and surface water for the National Water-Quality Assessment Program, October 1996–December 2008 Quality of volatile organic compound data from groundwater and surface water for the National Water-Quality Assessment Program, October 1996–December 2008
This report describes the quality of volatile organic compound (VOC) data collected from October 1996 to December 2008 from groundwater and surface-water sites for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program. The VOC data described were collected for three NAWQA site types: (1) domestic and public-supply wells, (2) monitoring wells, and (3) surface...
Authors
David A. Bender, John S. Zogorski, David K. Mueller, Donna L. Rose, Jeffrey D. Martin, Cassandra K. Brenner
Percent recoveries of anthropogenic organic compounds with and without the addition of ascorbic acid to preserve finished-water samples containing free chlorine, 2004-10 Percent recoveries of anthropogenic organic compounds with and without the addition of ascorbic acid to preserve finished-water samples containing free chlorine, 2004-10
This report presents finished-water matrix-spike recoveries of 270 anthropogenic organic compounds with and without the addition of ascorbic acid to preserve water samples containing free chlorine. Percent recoveries were calculated using analytical results from a study conducted during 2004-10 for the National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey (USGS)...
Authors
Joshua F. Valder, Gregory C. Delzer, David A. Bender, Curtis V. Price
Design and evaluation of a field study on the contamination of selected volatile organic compounds and wastewater-indicator compounds in blanks and groundwater samples Design and evaluation of a field study on the contamination of selected volatile organic compounds and wastewater-indicator compounds in blanks and groundwater samples
The Field Contamination Study (FCS) was designed to determine the field processes that tend to result in clean field blanks and to identify potential sources of contamination to blanks collected in the field from selected volatile organic compounds (VOCs) and wastewater-indicator compounds (WICs). The VOCs and WICs analyzed in the FCS were detected in blanks collected by the U.S...
Authors
Susan A. Thiros, David A. Bender, David K. Mueller, Donna L. Rose, Lisa D. Olsen, Jeffrey D. Martin, Bruce Bernard, John S. Zogorski
Occurrence of volatile organic compounds in selected urban streams in the United States, 1995-2003 Occurrence of volatile organic compounds in selected urban streams in the United States, 1995-2003
As part of the U.S. Geological Survey's (USGS) National Water-Quality Assessment (NAWQA) Program, urban indicator sites were monitored to (1) characterize the stream quality from drainage basins with predominantly residential and commercial land use, and (2) determine which selected natural and anthropogenic factors affect stream quality. A total of 869 water samples were collected from...
Authors
David A. Bender, Gregory C. Delzer, Curtis V. Price, John S. Zogorski
StreamVOC - A deterministic source-apportionment model to estimate volatile organic compound concentrations in rivers and streams StreamVOC - A deterministic source-apportionment model to estimate volatile organic compound concentrations in rivers and streams
This report documents the construction and verification of the model, StreamVOC, that estimates (1) the time- and position-dependent concentrations of volatile organic compounds (VOCs) in rivers and streams as well as (2) the source apportionment (SA) of those concentrations. The model considers how different types of sources and loss processes can act together to yield a given observed...
Authors
William E. Asher, David A. Bender, John S. Zogorski, Roy C. Bartholomay
Volatile organic compound matrix spike recoveries for ground- and surface-water samples, 1997-2001 Volatile organic compound matrix spike recoveries for ground- and surface-water samples, 1997-2001
The U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program used field matrix spikes (FMSs), field matrix spike replicates (FMSRs), laboratory matrix spikes (LMSs), and laboratory reagent spikes (LRSs), in part, to assess the quality of volatile organic compound (VOC) data from water samples collected and analyzed in more than 50 of the Nation's largest river basins...
Authors
Barbara L. Rowe, Gregory C. Delzer, David A. Bender, John S. Zogorski
Science and Products
Filter Total Items: 17
Quality of volatile organic compound data from groundwater and surface water for the National Water-Quality Assessment Program, October 1996–December 2008 Quality of volatile organic compound data from groundwater and surface water for the National Water-Quality Assessment Program, October 1996–December 2008
This report describes the quality of volatile organic compound (VOC) data collected from October 1996 to December 2008 from groundwater and surface-water sites for the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program. The VOC data described were collected for three NAWQA site types: (1) domestic and public-supply wells, (2) monitoring wells, and (3) surface...
Authors
David A. Bender, John S. Zogorski, David K. Mueller, Donna L. Rose, Jeffrey D. Martin, Cassandra K. Brenner
Percent recoveries of anthropogenic organic compounds with and without the addition of ascorbic acid to preserve finished-water samples containing free chlorine, 2004-10 Percent recoveries of anthropogenic organic compounds with and without the addition of ascorbic acid to preserve finished-water samples containing free chlorine, 2004-10
This report presents finished-water matrix-spike recoveries of 270 anthropogenic organic compounds with and without the addition of ascorbic acid to preserve water samples containing free chlorine. Percent recoveries were calculated using analytical results from a study conducted during 2004-10 for the National Water-Quality Assessment (NAWQA) Program of the U.S. Geological Survey (USGS)...
Authors
Joshua F. Valder, Gregory C. Delzer, David A. Bender, Curtis V. Price
Design and evaluation of a field study on the contamination of selected volatile organic compounds and wastewater-indicator compounds in blanks and groundwater samples Design and evaluation of a field study on the contamination of selected volatile organic compounds and wastewater-indicator compounds in blanks and groundwater samples
The Field Contamination Study (FCS) was designed to determine the field processes that tend to result in clean field blanks and to identify potential sources of contamination to blanks collected in the field from selected volatile organic compounds (VOCs) and wastewater-indicator compounds (WICs). The VOCs and WICs analyzed in the FCS were detected in blanks collected by the U.S...
Authors
Susan A. Thiros, David A. Bender, David K. Mueller, Donna L. Rose, Lisa D. Olsen, Jeffrey D. Martin, Bruce Bernard, John S. Zogorski
Occurrence of volatile organic compounds in selected urban streams in the United States, 1995-2003 Occurrence of volatile organic compounds in selected urban streams in the United States, 1995-2003
As part of the U.S. Geological Survey's (USGS) National Water-Quality Assessment (NAWQA) Program, urban indicator sites were monitored to (1) characterize the stream quality from drainage basins with predominantly residential and commercial land use, and (2) determine which selected natural and anthropogenic factors affect stream quality. A total of 869 water samples were collected from...
Authors
David A. Bender, Gregory C. Delzer, Curtis V. Price, John S. Zogorski
StreamVOC - A deterministic source-apportionment model to estimate volatile organic compound concentrations in rivers and streams StreamVOC - A deterministic source-apportionment model to estimate volatile organic compound concentrations in rivers and streams
This report documents the construction and verification of the model, StreamVOC, that estimates (1) the time- and position-dependent concentrations of volatile organic compounds (VOCs) in rivers and streams as well as (2) the source apportionment (SA) of those concentrations. The model considers how different types of sources and loss processes can act together to yield a given observed...
Authors
William E. Asher, David A. Bender, John S. Zogorski, Roy C. Bartholomay
Volatile organic compound matrix spike recoveries for ground- and surface-water samples, 1997-2001 Volatile organic compound matrix spike recoveries for ground- and surface-water samples, 1997-2001
The U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program used field matrix spikes (FMSs), field matrix spike replicates (FMSRs), laboratory matrix spikes (LMSs), and laboratory reagent spikes (LRSs), in part, to assess the quality of volatile organic compound (VOC) data from water samples collected and analyzed in more than 50 of the Nation's largest river basins...
Authors
Barbara L. Rowe, Gregory C. Delzer, David A. Bender, John S. Zogorski