David A Roth (Former Employee)
Science and Products
Filter Total Items: 30
Characterization of three common land-applied wastes: Inorganic, organic, and microbial compositions of biosolid, livestock, and drilling fluid waste, United States, 2021 and 2022 Characterization of three common land-applied wastes: Inorganic, organic, and microbial compositions of biosolid, livestock, and drilling fluid waste, United States, 2021 and 2022
It is common practice for waste byproducts generated from the treatment of municipal waste (biosolids), livestock production (manure), and oil and gas drilling operations (spent drill fluids and cuttings) to be applied to farmland as a cost-effective means of disposal. From June 2021 to January 2022, 34 samples of land-applied waste materials were collected in 14 U.S. states. Samples...
Geochemical, mineralogical, and grain-size data for deep cores from the Cache Creek Settling Basin and streambed sediments from the Sacramento River watershed Geochemical, mineralogical, and grain-size data for deep cores from the Cache Creek Settling Basin and streambed sediments from the Sacramento River watershed
The Cache Creek Settling Basin (CCSB) is a 13.3 km2 levee-bounded sediment retention basin located at the modern terminus of Cache Creek near the eastern boundary of Yolo County, approximately two miles NE of Woodland, California. The Cache Creek Settling Basin was constructed in 1937 by the U.S. Army Corps of Engineers to trap suspended sediment from the upper Cache Creek watershed...
Chemical concentration results for assessment of mixed-organic/inorganic chemical exposures in the southeast United States, beginning 2022 Chemical concentration results for assessment of mixed-organic/inorganic chemical exposures in the southeast United States, beginning 2022
This data release contains the concentration and quality-assurance results for inorganic constituents, organic compounds (volatile organic compounds [VOC], per- and polyfluoroalkyl substances [PFAS], pesticides, and disinfection byproducts [DBP]) collected in tapwater from locations in Alabama and Mississippi. Tapwater samples (11 public supply and 1 private well) were collected on...
Biogeochemical Data from Field Samples and Laboratory Experiments, Boulder Creek Watershed, Colorado (2019-2023) Biogeochemical Data from Field Samples and Laboratory Experiments, Boulder Creek Watershed, Colorado (2019-2023)
Biogeochemical processes are key drivers of chemical solubility and mobilization. Understanding these processes will lead to improved predictive capabilities and may aid with watershed management decisions. This data release presents results from the Boulder Creek, Colorado watershed, including analyses of water and sediment. From April to August 2019, water samples were collected weekly...
Environmental Sampling and Modeling Results to Characterize Surface-Water Quality at 32 Sites Across the Potomac River Watershed, 2022 (ver. 3.0, April 2025) Environmental Sampling and Modeling Results to Characterize Surface-Water Quality at 32 Sites Across the Potomac River Watershed, 2022 (ver. 3.0, April 2025)
This data release presents chemical results from investigations of surface-water quality in the Potomac River watershed (encompassing Washington, D.C. and parts of West Virginia, Virginia, Pennsylvania, and Maryland) conducted during low-flow conditions in July through September of 2022 and modeling results that support interpretative products. Water-quality sampling: A sampling campaign...
Longitudinal assessment of per- and polyfluoroalkyl substances and co-occurring inorganic and organic contaminants in Neshaminy Creek, Pennsylvania, November 2021 Longitudinal assessment of per- and polyfluoroalkyl substances and co-occurring inorganic and organic contaminants in Neshaminy Creek, Pennsylvania, November 2021
Per- and polyfluoroalkyl substances (PFAS) and co-occurring inorganic and organic contaminants are widely distributed in the environment and understanding their surface water sources is critical for water resource management. In November 2021, 13 sites were sampled along a stream reach in the Neshaminy Creek basin in southeastern Pennsylvania utilizing a time of travel sampling approach...
Filter Total Items: 19
Stream discharge determinations using slug additions and specific conductance Stream discharge determinations using slug additions and specific conductance
Stream discharge is often determined by wading the stream and measuring the velocity at fixed widths and depths. However, there are conditions when wading measurements are not safe or the measurements are poor because of high turbulence, rocky streambeds, shallow or sheet flow, aquatic plants, or inaccessibility due to ice. Under these conditions, it is often preferable to determine...
Authors
R. Blaine McCleskey, Robert Runkel, Sheila Murphy, David Roth
Contaminant exposure and transport from three potential reuse waters within a single watershed Contaminant exposure and transport from three potential reuse waters within a single watershed
Global demand for safe and sustainable water supplies necessitates a better understanding of contaminant exposures in potential reuse waters. In this study, we compared exposures and load contributions to surface water from the discharge of three reuse waters (wastewater effluent, urban stormwater, and agricultural runoff). Results document substantial and varying organic-chemical...
Authors
Jason Masoner, Dana W. Kolpin, Isabelle Cozzarelli, Paul M. Bradley, Brian Arnall, Kenneth Forshay, James L. Gray, Justin Groves, Michelle Hladik, Laura Hubbard, Luke R. Iwanowicz, Jeanne Jaeschke, Rachael Lane, R. Blaine McCleskey, Bridgette Polite, David Roth, Michael Pettijohn, Michaelah Wilson
By
Water Resources Mission Area, Environmental Health Program, Central Plains Water Science Center, Eastern Ecological Science Center, Colorado Water Science Center, California Water Science Center, Central Midwest Water Science Center, Geology, Energy & Minerals Science Center, Kansas Water Science Center, Oklahoma-Texas Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Reston Biogeochemical Processes in Groundwater Laboratory
Bottled water contaminant exposures and potential human effects Bottled water contaminant exposures and potential human effects
Bottled water (BW) consumption in the United States and globally has increased amidst heightened concern about environmental contaminant exposures and health risks in drinking water supplies, despite a paucity of directly comparable, environmentally-relevant contaminant exposure data for BW. This study provides insight into exposures and cumulative risks to human health from inorganic...
Authors
Paul M. Bradley, Kristin M. Romanok, Kelly L. Smalling, Michael Focazio, Nicola Evans, Suzanne Fitzpatrick, Carrie Givens, Stephanie Gordon, James L. Gray, Emily Green, Dale Griffin, Michelle Hladik, Leslie Kanagy, John Lisle, Keith Loftin, R. Blaine McCleskey, Elizabeth Medlock-Kakaley, Ana Navas-Acien, David Roth, Paul South, Christopher Weis
Watershed-scale risk to aquatic organisms from complex chemical mixtures in the Shenandoah River Watershed-scale risk to aquatic organisms from complex chemical mixtures in the Shenandoah River
River waters contain complex chemical mixtures derived from natural and anthropogenic sources. Aquatic organisms are exposed to the entire chemical composition of the water, resulting in potential effects at the organismal through ecosystem level. This study applied a holistic approach to assess landscape, hydrological, chemical, and biological variables. On-site mobile laboratory...
Authors
Larry B. Barber, Kaycee Faunce, David Bertolatus, Michelle Hladik, Jeramy Roland Jasmann, Steffanie Keefe, Dana W. Kolpin, Michael T. Meyer, Jennifer Rapp, David Roth, Alan Vajda
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Central Plains Water Science Center, California Water Science Center, Chesapeake Bay Activities, Kansas Water Science Center, Virginia and West Virginia Water Science Center
The source, fate, and transport of arsenic in the Yellowstone hydrothermal system - An overview The source, fate, and transport of arsenic in the Yellowstone hydrothermal system - An overview
The Yellowstone Plateau Volcanic Field (YPVF) contains >10,000 thermal features including hot springs, pools, geysers, mud pots, and fumaroles with diverse chemical compositions. Arsenic (As) concentrations in YPVF thermal waters typically range from 0.005 to 4 mg/L, but an As concentration of 17 mg/L has been reported. Arsenic data from thermal springs, outflow drainages, rivers, and...
Authors
R. Blaine McCleskey, D. Nordstrom, Shaul Hurwitz, Daniel Colman, David Roth, Madeline Johnson, Eric S. Boyd
Sources, fate, and flux of riverine solutes in the Southwest Yellowstone Plateau Volcanic Field, USA Sources, fate, and flux of riverine solutes in the Southwest Yellowstone Plateau Volcanic Field, USA
Since the 1970s, temporal variations of hydrothermal discharge and thermal output from the numerous hydrothermal features in the Yellowstone Plateau Volcanic Field (YPVF) have been studied by measuring the chloride flux in the major rivers. In this study, the sources, fate, and flux of solutes in the Fall River and its major tributaries, in southwest Yellowstone National Park, were...
Authors
R. Blaine McCleskey, Shaul Hurwitz, Erin White, David Roth, David Susong, Jefferson Hungerford, Lonnie Olson
Science and Products
Filter Total Items: 30
Characterization of three common land-applied wastes: Inorganic, organic, and microbial compositions of biosolid, livestock, and drilling fluid waste, United States, 2021 and 2022 Characterization of three common land-applied wastes: Inorganic, organic, and microbial compositions of biosolid, livestock, and drilling fluid waste, United States, 2021 and 2022
It is common practice for waste byproducts generated from the treatment of municipal waste (biosolids), livestock production (manure), and oil and gas drilling operations (spent drill fluids and cuttings) to be applied to farmland as a cost-effective means of disposal. From June 2021 to January 2022, 34 samples of land-applied waste materials were collected in 14 U.S. states. Samples...
Geochemical, mineralogical, and grain-size data for deep cores from the Cache Creek Settling Basin and streambed sediments from the Sacramento River watershed Geochemical, mineralogical, and grain-size data for deep cores from the Cache Creek Settling Basin and streambed sediments from the Sacramento River watershed
The Cache Creek Settling Basin (CCSB) is a 13.3 km2 levee-bounded sediment retention basin located at the modern terminus of Cache Creek near the eastern boundary of Yolo County, approximately two miles NE of Woodland, California. The Cache Creek Settling Basin was constructed in 1937 by the U.S. Army Corps of Engineers to trap suspended sediment from the upper Cache Creek watershed...
Chemical concentration results for assessment of mixed-organic/inorganic chemical exposures in the southeast United States, beginning 2022 Chemical concentration results for assessment of mixed-organic/inorganic chemical exposures in the southeast United States, beginning 2022
This data release contains the concentration and quality-assurance results for inorganic constituents, organic compounds (volatile organic compounds [VOC], per- and polyfluoroalkyl substances [PFAS], pesticides, and disinfection byproducts [DBP]) collected in tapwater from locations in Alabama and Mississippi. Tapwater samples (11 public supply and 1 private well) were collected on...
Biogeochemical Data from Field Samples and Laboratory Experiments, Boulder Creek Watershed, Colorado (2019-2023) Biogeochemical Data from Field Samples and Laboratory Experiments, Boulder Creek Watershed, Colorado (2019-2023)
Biogeochemical processes are key drivers of chemical solubility and mobilization. Understanding these processes will lead to improved predictive capabilities and may aid with watershed management decisions. This data release presents results from the Boulder Creek, Colorado watershed, including analyses of water and sediment. From April to August 2019, water samples were collected weekly...
Environmental Sampling and Modeling Results to Characterize Surface-Water Quality at 32 Sites Across the Potomac River Watershed, 2022 (ver. 3.0, April 2025) Environmental Sampling and Modeling Results to Characterize Surface-Water Quality at 32 Sites Across the Potomac River Watershed, 2022 (ver. 3.0, April 2025)
This data release presents chemical results from investigations of surface-water quality in the Potomac River watershed (encompassing Washington, D.C. and parts of West Virginia, Virginia, Pennsylvania, and Maryland) conducted during low-flow conditions in July through September of 2022 and modeling results that support interpretative products. Water-quality sampling: A sampling campaign...
Longitudinal assessment of per- and polyfluoroalkyl substances and co-occurring inorganic and organic contaminants in Neshaminy Creek, Pennsylvania, November 2021 Longitudinal assessment of per- and polyfluoroalkyl substances and co-occurring inorganic and organic contaminants in Neshaminy Creek, Pennsylvania, November 2021
Per- and polyfluoroalkyl substances (PFAS) and co-occurring inorganic and organic contaminants are widely distributed in the environment and understanding their surface water sources is critical for water resource management. In November 2021, 13 sites were sampled along a stream reach in the Neshaminy Creek basin in southeastern Pennsylvania utilizing a time of travel sampling approach...
Filter Total Items: 19
Stream discharge determinations using slug additions and specific conductance Stream discharge determinations using slug additions and specific conductance
Stream discharge is often determined by wading the stream and measuring the velocity at fixed widths and depths. However, there are conditions when wading measurements are not safe or the measurements are poor because of high turbulence, rocky streambeds, shallow or sheet flow, aquatic plants, or inaccessibility due to ice. Under these conditions, it is often preferable to determine...
Authors
R. Blaine McCleskey, Robert Runkel, Sheila Murphy, David Roth
Contaminant exposure and transport from three potential reuse waters within a single watershed Contaminant exposure and transport from three potential reuse waters within a single watershed
Global demand for safe and sustainable water supplies necessitates a better understanding of contaminant exposures in potential reuse waters. In this study, we compared exposures and load contributions to surface water from the discharge of three reuse waters (wastewater effluent, urban stormwater, and agricultural runoff). Results document substantial and varying organic-chemical...
Authors
Jason Masoner, Dana W. Kolpin, Isabelle Cozzarelli, Paul M. Bradley, Brian Arnall, Kenneth Forshay, James L. Gray, Justin Groves, Michelle Hladik, Laura Hubbard, Luke R. Iwanowicz, Jeanne Jaeschke, Rachael Lane, R. Blaine McCleskey, Bridgette Polite, David Roth, Michael Pettijohn, Michaelah Wilson
By
Water Resources Mission Area, Environmental Health Program, Central Plains Water Science Center, Eastern Ecological Science Center, Colorado Water Science Center, California Water Science Center, Central Midwest Water Science Center, Geology, Energy & Minerals Science Center, Kansas Water Science Center, Oklahoma-Texas Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Reston Biogeochemical Processes in Groundwater Laboratory
Bottled water contaminant exposures and potential human effects Bottled water contaminant exposures and potential human effects
Bottled water (BW) consumption in the United States and globally has increased amidst heightened concern about environmental contaminant exposures and health risks in drinking water supplies, despite a paucity of directly comparable, environmentally-relevant contaminant exposure data for BW. This study provides insight into exposures and cumulative risks to human health from inorganic...
Authors
Paul M. Bradley, Kristin M. Romanok, Kelly L. Smalling, Michael Focazio, Nicola Evans, Suzanne Fitzpatrick, Carrie Givens, Stephanie Gordon, James L. Gray, Emily Green, Dale Griffin, Michelle Hladik, Leslie Kanagy, John Lisle, Keith Loftin, R. Blaine McCleskey, Elizabeth Medlock-Kakaley, Ana Navas-Acien, David Roth, Paul South, Christopher Weis
Watershed-scale risk to aquatic organisms from complex chemical mixtures in the Shenandoah River Watershed-scale risk to aquatic organisms from complex chemical mixtures in the Shenandoah River
River waters contain complex chemical mixtures derived from natural and anthropogenic sources. Aquatic organisms are exposed to the entire chemical composition of the water, resulting in potential effects at the organismal through ecosystem level. This study applied a holistic approach to assess landscape, hydrological, chemical, and biological variables. On-site mobile laboratory...
Authors
Larry B. Barber, Kaycee Faunce, David Bertolatus, Michelle Hladik, Jeramy Roland Jasmann, Steffanie Keefe, Dana W. Kolpin, Michael T. Meyer, Jennifer Rapp, David Roth, Alan Vajda
By
Ecosystems Mission Area, Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Central Plains Water Science Center, California Water Science Center, Chesapeake Bay Activities, Kansas Water Science Center, Virginia and West Virginia Water Science Center
The source, fate, and transport of arsenic in the Yellowstone hydrothermal system - An overview The source, fate, and transport of arsenic in the Yellowstone hydrothermal system - An overview
The Yellowstone Plateau Volcanic Field (YPVF) contains >10,000 thermal features including hot springs, pools, geysers, mud pots, and fumaroles with diverse chemical compositions. Arsenic (As) concentrations in YPVF thermal waters typically range from 0.005 to 4 mg/L, but an As concentration of 17 mg/L has been reported. Arsenic data from thermal springs, outflow drainages, rivers, and...
Authors
R. Blaine McCleskey, D. Nordstrom, Shaul Hurwitz, Daniel Colman, David Roth, Madeline Johnson, Eric S. Boyd
Sources, fate, and flux of riverine solutes in the Southwest Yellowstone Plateau Volcanic Field, USA Sources, fate, and flux of riverine solutes in the Southwest Yellowstone Plateau Volcanic Field, USA
Since the 1970s, temporal variations of hydrothermal discharge and thermal output from the numerous hydrothermal features in the Yellowstone Plateau Volcanic Field (YPVF) have been studied by measuring the chloride flux in the major rivers. In this study, the sources, fate, and flux of solutes in the Fall River and its major tributaries, in southwest Yellowstone National Park, were...
Authors
R. Blaine McCleskey, Shaul Hurwitz, Erin White, David Roth, David Susong, Jefferson Hungerford, Lonnie Olson