James Reddy
James is a Physical Scientist at the USGS New York Water Science Center in Cortland.
Professional Experience
Physical Scientist, Water Resources Division, US Geological Survey, Ithaca, NY, 2003 - Present
Cartographic Technician, Geologic Division, US Geological Survey, Reston, VA, 1997 - 2002
Image Analyst, Bionetics Corporation, Warrenton, VA, 1985 - 1996
Education and Certifications
Bachelor of Science in Geography from Pennsylvania State University, 1984
Science and Products
Filter Total Items: 32
Metamodeling and mapping of nitrate flux in the unsaturated zone and groundwater, Wisconsin, USA
Nitrate contamination of groundwater in agricultural areas poses a major challenge to the sustainability of water resources. Aquifer vulnerability models are useful tools that can help resource managers identify areas of concern, but quantifying nitrogen (N) inputs in such models is challenging, especially at large spatial scales. We sought to improve regional nitrate (NO3−) input functions by cha
Authors
Bernard T. Nolan, Christopher T. Green, Paul F. Juckem, Lixia Liao, James E. Reddy
Groundwater quality in the Lake Champlain and Susquehanna River basins, New York, 2014
In a study conducted by the U.S. Geological Survey in cooperation with the New York State Department of Environmental Conservation, groundwater samples were collected from 6 production wells and 7 domestic wells in the Lake Champlain Basin and from 11 production wells and 9 domestic wells in the Susquehanna River Basin in New York. All samples were collected from June through December 2014 to char
Authors
Tia-Marie Scott, Elizabeth A. Nystrom, James E. Reddy
Streamflow and estimated loads of phosphorus and dissolved and suspended solids from selected tributaries to Lake Ontario, New York, water years 2012–14
This report presents results of the evaluation and interpretation of hydrologic and water-quality data collected as part of a cooperative program between the U.S. Geological Survey and the U.S. Environmental Protection Agency. Streamflow, phosphorus, and solids dissolved and suspended in stream water were the focus of monitoring by the U.S. Geological Survey at 10 sites on 9 selected tributaries t
Authors
Brett A. Hayhurst, Benjamin N. Fisher, James E. Reddy
Groundwater quality in the Chemung River, Eastern Lake Ontario, and Lower Hudson River Basins, New York, 2013
In a study conducted by the U.S. Geological Survey (USGS) in cooperation with the New York State Department of Environmental Conservation, water samples were collected from 4 production wells and 4 domestic wells in the Chemung River Basin, 8 production wells and 7 domestic wells in the Eastern Lake Ontario Basin, and 12 production wells and 13 domestic wells in the Lower Hudson River Basin (south
Authors
Tia-Marie Scott, Elizabeth A. Nystrom, James E. Reddy
Groundwater quality in central New York, 2012
Water samples were collected from 14 production wells and 15 private wells in central New York from August through December 2012 in a study conducted by the U.S. Geological Survey in cooperation with the New York State Department of Environmental Conservation. The samples were analyzed to characterize the groundwater quality in unconsolidated and bedrock aquifers in this area. Fifteen of the wells
Authors
James E. Reddy
Groundwater quality in western New York, 2011
Water samples collected from 16 production wells and 15 private residential wells in western New York from July through November 2011 were analyzed to characterize the groundwater quality. Fifteen of the wells were finished in sand and gravel aquifers, and 16 were finished in bedrock aquifers. Six of the 31 wells were sampled in a previous western New York study, which was conducted in 2006. Water
Authors
James E. Reddy
Specific conductance measurements in central and western New York streams - A retrospective characterization
U.S. Geological Survey (USGS) Data Rescue Program funds were used to recover data from paper records for 139 streamgages across central and western New York State; 6,133 different streamflow measurement forms, collected between 1970-80, contained field water-quality measurements. The water-quality data were entered, reviewed, and uploaded into the USGS National Water Information System. In total,
Authors
William M. Kappel, Gaylen J. Sinclair, James E. Reddy, David A. Eckhardt, M. Peter deVries, Margaret E. Phillips
Groundwater quality in the Genesee River Basin, New York, 2010
Water samples collected from eight production wells and eight private residential wells in the Genesee River Basin from September through December 2010 were analyzed to characterize the groundwater quality in the basin. Eight of the wells were completed in sand and gravel aquifers, and eight were finished in bedrock aquifers. Three of the 16 wells were sampled in the first Genesee River Basin stud
Authors
James E. Reddy
Groundwater quality in the Upper Susquehanna River Basin, New York, 2009
Water samples were collected from 16 production wells and 14 private residential wells in the Upper Susquehanna River Basin from August through December 2009 and were analyzed to characterize the groundwater quality in the basin. Wells at 16 of the sites were completed in sand and gravel aquifers, and 14 were finished in bedrock aquifers. In 2004–2005, six of these wells were sampled in the first
Authors
James E. Reddy, Amy J. Risen
Groundwater quality in the Chemung River Basin, New York, 2008
The second groundwater quality study of the Chemung River Basin in south-central New York was conducted as part of the U.S. Geological Survey 305(b) water-quality-monitoring program. Water samples were collected from five production wells and five private residential wells from October through December 2008. The samples were analyzed to characterize the chemical quality of the groundwater. Five of
Authors
Amy J. Risen, James E. Reddy
Groundwater quality in the Eastern Lake Ontario Basin, New York, 2008
Water samples were collected from nine production wells and nine private residential wells in the Eastern Lake Ontario Basin of New York from August through October 2008 and analyzed to characterize the chemical quality of groundwater. The wells were selected to provide adequate spatial coverage of the 3,225-square-mile study area; areas of greatest groundwater use were emphasized. Eight of the 18
Authors
Amy J. Risen, James E. Reddy
Groundwater Quality in Central New York, 2007
Water samples were collected from 7 production wells and 28 private residential wells in central New York from August through December 2007 and analyzed to characterize the chemical quality of groundwater. Seventeen wells are screened in sand and gravel aquifers, and 18 are finished in bedrock aquifers. The wells were selected to represent areas of greatest groundwater use and to provide a geograp
Authors
David A.V. Eckhardt, J.E. Reddy, Stephen B. Shaw
Science and Products
Filter Total Items: 32
Metamodeling and mapping of nitrate flux in the unsaturated zone and groundwater, Wisconsin, USA
Nitrate contamination of groundwater in agricultural areas poses a major challenge to the sustainability of water resources. Aquifer vulnerability models are useful tools that can help resource managers identify areas of concern, but quantifying nitrogen (N) inputs in such models is challenging, especially at large spatial scales. We sought to improve regional nitrate (NO3−) input functions by cha
Authors
Bernard T. Nolan, Christopher T. Green, Paul F. Juckem, Lixia Liao, James E. Reddy
Groundwater quality in the Lake Champlain and Susquehanna River basins, New York, 2014
In a study conducted by the U.S. Geological Survey in cooperation with the New York State Department of Environmental Conservation, groundwater samples were collected from 6 production wells and 7 domestic wells in the Lake Champlain Basin and from 11 production wells and 9 domestic wells in the Susquehanna River Basin in New York. All samples were collected from June through December 2014 to char
Authors
Tia-Marie Scott, Elizabeth A. Nystrom, James E. Reddy
Streamflow and estimated loads of phosphorus and dissolved and suspended solids from selected tributaries to Lake Ontario, New York, water years 2012–14
This report presents results of the evaluation and interpretation of hydrologic and water-quality data collected as part of a cooperative program between the U.S. Geological Survey and the U.S. Environmental Protection Agency. Streamflow, phosphorus, and solids dissolved and suspended in stream water were the focus of monitoring by the U.S. Geological Survey at 10 sites on 9 selected tributaries t
Authors
Brett A. Hayhurst, Benjamin N. Fisher, James E. Reddy
Groundwater quality in the Chemung River, Eastern Lake Ontario, and Lower Hudson River Basins, New York, 2013
In a study conducted by the U.S. Geological Survey (USGS) in cooperation with the New York State Department of Environmental Conservation, water samples were collected from 4 production wells and 4 domestic wells in the Chemung River Basin, 8 production wells and 7 domestic wells in the Eastern Lake Ontario Basin, and 12 production wells and 13 domestic wells in the Lower Hudson River Basin (south
Authors
Tia-Marie Scott, Elizabeth A. Nystrom, James E. Reddy
Groundwater quality in central New York, 2012
Water samples were collected from 14 production wells and 15 private wells in central New York from August through December 2012 in a study conducted by the U.S. Geological Survey in cooperation with the New York State Department of Environmental Conservation. The samples were analyzed to characterize the groundwater quality in unconsolidated and bedrock aquifers in this area. Fifteen of the wells
Authors
James E. Reddy
Groundwater quality in western New York, 2011
Water samples collected from 16 production wells and 15 private residential wells in western New York from July through November 2011 were analyzed to characterize the groundwater quality. Fifteen of the wells were finished in sand and gravel aquifers, and 16 were finished in bedrock aquifers. Six of the 31 wells were sampled in a previous western New York study, which was conducted in 2006. Water
Authors
James E. Reddy
Specific conductance measurements in central and western New York streams - A retrospective characterization
U.S. Geological Survey (USGS) Data Rescue Program funds were used to recover data from paper records for 139 streamgages across central and western New York State; 6,133 different streamflow measurement forms, collected between 1970-80, contained field water-quality measurements. The water-quality data were entered, reviewed, and uploaded into the USGS National Water Information System. In total,
Authors
William M. Kappel, Gaylen J. Sinclair, James E. Reddy, David A. Eckhardt, M. Peter deVries, Margaret E. Phillips
Groundwater quality in the Genesee River Basin, New York, 2010
Water samples collected from eight production wells and eight private residential wells in the Genesee River Basin from September through December 2010 were analyzed to characterize the groundwater quality in the basin. Eight of the wells were completed in sand and gravel aquifers, and eight were finished in bedrock aquifers. Three of the 16 wells were sampled in the first Genesee River Basin stud
Authors
James E. Reddy
Groundwater quality in the Upper Susquehanna River Basin, New York, 2009
Water samples were collected from 16 production wells and 14 private residential wells in the Upper Susquehanna River Basin from August through December 2009 and were analyzed to characterize the groundwater quality in the basin. Wells at 16 of the sites were completed in sand and gravel aquifers, and 14 were finished in bedrock aquifers. In 2004–2005, six of these wells were sampled in the first
Authors
James E. Reddy, Amy J. Risen
Groundwater quality in the Chemung River Basin, New York, 2008
The second groundwater quality study of the Chemung River Basin in south-central New York was conducted as part of the U.S. Geological Survey 305(b) water-quality-monitoring program. Water samples were collected from five production wells and five private residential wells from October through December 2008. The samples were analyzed to characterize the chemical quality of the groundwater. Five of
Authors
Amy J. Risen, James E. Reddy
Groundwater quality in the Eastern Lake Ontario Basin, New York, 2008
Water samples were collected from nine production wells and nine private residential wells in the Eastern Lake Ontario Basin of New York from August through October 2008 and analyzed to characterize the chemical quality of groundwater. The wells were selected to provide adequate spatial coverage of the 3,225-square-mile study area; areas of greatest groundwater use were emphasized. Eight of the 18
Authors
Amy J. Risen, James E. Reddy
Groundwater Quality in Central New York, 2007
Water samples were collected from 7 production wells and 28 private residential wells in central New York from August through December 2007 and analyzed to characterize the chemical quality of groundwater. Seventeen wells are screened in sand and gravel aquifers, and 18 are finished in bedrock aquifers. The wells were selected to represent areas of greatest groundwater use and to provide a geograp
Authors
David A.V. Eckhardt, J.E. Reddy, Stephen B. Shaw