Lori Sprague
Lori Sprague is currently the National Program Manager of the USGS Water Mission Area’s Integrated Water Availability Assessments (IWAAs) Program, which provides national and regional assessments of water for human and ecological needs and identifies factors that limit water availability.
Lori is also the USGS representative on the interagency Mississippi River/Gulf of Mexico Watershed Nutrient Task Force coordinating committee, which works to understand the causes and effects of eutrophication in the Gulf of Mexico; coordinate activities to reduce the size, severity, and duration of the seasonal hypoxic zone in the Gulf of Mexico; and ameliorate the effects of hypoxia.
Science and Products
Filter Total Items: 46
Nutrient Trends in Streams and Rivers of the United States, 1993-2003
Trends in streamflow and concentrations and loads of total phosphorus, total nitrogen, and nitrate were determined for the period from 1993 to 2003 in selected streams and ricers of the United States. Flow-adjusted trends in concentration (the trends that would have occurred in the absence of natural chances in streamflow), non-flow-adjusted trends in concentration (the trends resulting from both
Authors
Lori A. Sprague, David K. Mueller, Gregory E. Schwarz, David L. Lorenz
Selected Physical, Chemical, and Biological Data Used to Study Urbanizing Streams in Nine Metropolitan Areas of the United States, 1999-2004
This report documents and summarizes physical, chemical, and biological data collected during 1999-2004 in a study titled Effects of Urbanization on Stream Ecosystems, undertaken as part of the U.S. Geological Survey's National Water-Quality Assessment Program. Data-collection methods and data processing are described in this report for streamflow; stream temperature; instream chemistry; instream
Authors
Elise M. P. Giddings, Amanda H. Bell, Karen M. Beaulieu, Thomas F. Cuffney, James F. Coles, Larry R. Brown, Faith A. Fitzpatrick, James A. Falcone, Lori A. Sprague, Wade L. Bryant, Marie C. Peppler, Cory Stephens, Gerard McMahon
Regional nutrient trends in streams and rivers of the United States, 1993-2003
Trends in flow-adjusted concentrations (indicators of anthropogenic changes) and observed concentrations (indicators of natural and anthropogenic changes) of total phosphorus and total nitrogen from 1993 to 2003 were evaluated in the eastern, central, and western United States by adapting the Regional Kendall trend test to account for seasonality and spatial correlation. The only significant regio
Authors
Lori A. Sprague, David L. Lorenz
Comparison of pesticide concentrations in streams at low flow in six metropolitan areas of the United States
To examine the effect of urban development on pesticide concentrations in streams under low-flow conditions, water samples were collected at stream sites along an urban land use gradient in six environmentally heterogeneous metropolitan areas of the United States. In all six metropolitan areas, total insecticide concentrations generally increased significantly as urban land cover in the basin incr
Authors
Lori A. Sprague, Lisa H. Nowell
Response of Stream Chemistry During Base Flow to Gradients of Urbanization in Selected Locations Across the Conterminous United States, 2002-04
During 2002-2004, the U.S. Geological Survey's National Water-Quality Assessment Program conducted a study to determine the effects of urbanization on stream water quality and aquatic communities in six environmentally heterogeneous areas of the conterminous United States--Atlanta, Georgia; Raleigh-Durham, North Carolina; Milwaukee-Green Bay, Wisconsin; Dallas-Fort Worth, Texas; Denver, Colorado;
Authors
Lori A. Sprague, Douglas A. Harned, David W. Hall, Lisa H. Nowell, Nancy J. Bauch, Kevin D. Richards
Aquatic Communities and Selected Water Chemistry in St. Vrain Creek near the City of Longmont, Colorado, Wastewater-Treatment Plant, 2005 and 2006
In 2005, the U.S. Geological Survey and the City of Longmont, Colo., began a study to document chemical characteristics of St. Vrain Creek that had previously been unavailable either due to high cost of analysis or lack of analytical capability. Stream samples were collected at seven sites on St. Vrain Creek during the spring of 2005 and 2006 for analysis of wastewater compounds. A Lagrangian-samp
Authors
Robert E. Zuellig, Lori A. Sprague, Jim A. Collins, Oliver N. Cox
Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003
Trends in streamflow and concentration of total nitrogen, nitrite plus nitrate, ammonia, total phosphorus, orthophosphorus, and suspended sediment were determined for the period from 1993 to 2003 at selected stream sites in the Missouri River Basin. Flow-adjusted trends in concentration (the trends that would have occurred in the absence of natural changes in streamflow) and non-flow-adjusted tren
Authors
Lori A. Sprague, Melanie L. Clark, David L. Rus, Ronald B. Zelt, Jennifer L. Flynn, Jerri V. Davis
Effects of urban development on stream ecosystems alongthe Front Range of the Rocky Mountains, Colorado and Wyoming
The U.S. Geological Survey (USGS) conducted a study from 2002 through 2003 through its National Water-Quality Assessment (NAWQA) Program to determine the effects of urbanization on the physical, chemical, and biological characteristics of stream ecosystems along the Front Range of the Rocky Mountains. The objectives of the study were to (1) examine physical, chemical, and biological responses at s
Authors
Lori A. Sprague, Robert E. Zuellig, Jean A. Dupree
Effects of urbanization on stream ecosystems in the South Platte River basin, Colorado and Wyoming
This report describes the effects of urbanization on physical, chemical, and biological characteristics of stream ecosystems in 28 basins along an urban land-use gradient in the South Platte River Basin, Colorado and Wyoming, from 2002 through 2003. Study basins were chosen to minimize natural variability among basins due to factors such as geology, elevation, and climate and to maximize coverage
Authors
Lori A. Sprague, Robert E. Zuellig, Jean A. Dupree
The Cache la Poudre River, Colorado, as a drinking-water source
No abstract available.
Authors
Jim A. Collins, Lori A. Sprague
Drought effects on water quality in the South Platte River Basin, Colorado
Twenty-three stream sites representing a range of forested, agricultural, and urban land uses were sampled in the South Platte River Basin of Colorado from July through September 2002 to characterize water quality during drought conditions. With a few exceptions, dissolved ammonia, Kjeldahl nitrogen, total phosphorus, and dissolved orthophosphate concentrations were similar to seasonal historical
Authors
Lori A. Sprague
Wastewater chemicals in Colorado's streams and ground water
No abstract available.
Authors
Lori A. Sprague, William A. Battaglin
Science and Products
Filter Total Items: 46
Nutrient Trends in Streams and Rivers of the United States, 1993-2003
Trends in streamflow and concentrations and loads of total phosphorus, total nitrogen, and nitrate were determined for the period from 1993 to 2003 in selected streams and ricers of the United States. Flow-adjusted trends in concentration (the trends that would have occurred in the absence of natural chances in streamflow), non-flow-adjusted trends in concentration (the trends resulting from both
Authors
Lori A. Sprague, David K. Mueller, Gregory E. Schwarz, David L. Lorenz
Selected Physical, Chemical, and Biological Data Used to Study Urbanizing Streams in Nine Metropolitan Areas of the United States, 1999-2004
This report documents and summarizes physical, chemical, and biological data collected during 1999-2004 in a study titled Effects of Urbanization on Stream Ecosystems, undertaken as part of the U.S. Geological Survey's National Water-Quality Assessment Program. Data-collection methods and data processing are described in this report for streamflow; stream temperature; instream chemistry; instream
Authors
Elise M. P. Giddings, Amanda H. Bell, Karen M. Beaulieu, Thomas F. Cuffney, James F. Coles, Larry R. Brown, Faith A. Fitzpatrick, James A. Falcone, Lori A. Sprague, Wade L. Bryant, Marie C. Peppler, Cory Stephens, Gerard McMahon
Regional nutrient trends in streams and rivers of the United States, 1993-2003
Trends in flow-adjusted concentrations (indicators of anthropogenic changes) and observed concentrations (indicators of natural and anthropogenic changes) of total phosphorus and total nitrogen from 1993 to 2003 were evaluated in the eastern, central, and western United States by adapting the Regional Kendall trend test to account for seasonality and spatial correlation. The only significant regio
Authors
Lori A. Sprague, David L. Lorenz
Comparison of pesticide concentrations in streams at low flow in six metropolitan areas of the United States
To examine the effect of urban development on pesticide concentrations in streams under low-flow conditions, water samples were collected at stream sites along an urban land use gradient in six environmentally heterogeneous metropolitan areas of the United States. In all six metropolitan areas, total insecticide concentrations generally increased significantly as urban land cover in the basin incr
Authors
Lori A. Sprague, Lisa H. Nowell
Response of Stream Chemistry During Base Flow to Gradients of Urbanization in Selected Locations Across the Conterminous United States, 2002-04
During 2002-2004, the U.S. Geological Survey's National Water-Quality Assessment Program conducted a study to determine the effects of urbanization on stream water quality and aquatic communities in six environmentally heterogeneous areas of the conterminous United States--Atlanta, Georgia; Raleigh-Durham, North Carolina; Milwaukee-Green Bay, Wisconsin; Dallas-Fort Worth, Texas; Denver, Colorado;
Authors
Lori A. Sprague, Douglas A. Harned, David W. Hall, Lisa H. Nowell, Nancy J. Bauch, Kevin D. Richards
Aquatic Communities and Selected Water Chemistry in St. Vrain Creek near the City of Longmont, Colorado, Wastewater-Treatment Plant, 2005 and 2006
In 2005, the U.S. Geological Survey and the City of Longmont, Colo., began a study to document chemical characteristics of St. Vrain Creek that had previously been unavailable either due to high cost of analysis or lack of analytical capability. Stream samples were collected at seven sites on St. Vrain Creek during the spring of 2005 and 2006 for analysis of wastewater compounds. A Lagrangian-samp
Authors
Robert E. Zuellig, Lori A. Sprague, Jim A. Collins, Oliver N. Cox
Nutrient and Suspended-Sediment Trends in the Missouri River Basin, 1993-2003
Trends in streamflow and concentration of total nitrogen, nitrite plus nitrate, ammonia, total phosphorus, orthophosphorus, and suspended sediment were determined for the period from 1993 to 2003 at selected stream sites in the Missouri River Basin. Flow-adjusted trends in concentration (the trends that would have occurred in the absence of natural changes in streamflow) and non-flow-adjusted tren
Authors
Lori A. Sprague, Melanie L. Clark, David L. Rus, Ronald B. Zelt, Jennifer L. Flynn, Jerri V. Davis
Effects of urban development on stream ecosystems alongthe Front Range of the Rocky Mountains, Colorado and Wyoming
The U.S. Geological Survey (USGS) conducted a study from 2002 through 2003 through its National Water-Quality Assessment (NAWQA) Program to determine the effects of urbanization on the physical, chemical, and biological characteristics of stream ecosystems along the Front Range of the Rocky Mountains. The objectives of the study were to (1) examine physical, chemical, and biological responses at s
Authors
Lori A. Sprague, Robert E. Zuellig, Jean A. Dupree
Effects of urbanization on stream ecosystems in the South Platte River basin, Colorado and Wyoming
This report describes the effects of urbanization on physical, chemical, and biological characteristics of stream ecosystems in 28 basins along an urban land-use gradient in the South Platte River Basin, Colorado and Wyoming, from 2002 through 2003. Study basins were chosen to minimize natural variability among basins due to factors such as geology, elevation, and climate and to maximize coverage
Authors
Lori A. Sprague, Robert E. Zuellig, Jean A. Dupree
The Cache la Poudre River, Colorado, as a drinking-water source
No abstract available.
Authors
Jim A. Collins, Lori A. Sprague
Drought effects on water quality in the South Platte River Basin, Colorado
Twenty-three stream sites representing a range of forested, agricultural, and urban land uses were sampled in the South Platte River Basin of Colorado from July through September 2002 to characterize water quality during drought conditions. With a few exceptions, dissolved ammonia, Kjeldahl nitrogen, total phosphorus, and dissolved orthophosphate concentrations were similar to seasonal historical
Authors
Lori A. Sprague
Wastewater chemicals in Colorado's streams and ground water
No abstract available.
Authors
Lori A. Sprague, William A. Battaglin