Timothy Reilly
Timothy joined the USGS as a hydrologist in 1997 and now serves as the Deputy Program Coordinator for the Environmental Health Program (Contaminant Biology and Toxic Substances Hydrology) in the Ecosystems Mission Area.
Science and Products
Filter Total Items: 26
Screening tool to evaluate the vulnerability of down-gradient receptors to groundwater contaminants from uncapped landfills
A screening tool for quantifying levels of concern for contaminants detected in monitoring wells on or near landfills to down-gradient receptors (streams, wetlands and residential lots) was developed and evaluated. The tool uses Quick Domenico Multi-scenario (QDM), a spreadsheet implementation of Domenico-based solute transport, to estimate concentrations of contaminants reaching receptors under s
Authors
Ronald J. Baker, Timothy J. Reilly, Anthony R. Lopez, Kristin M. Romanok, Edward W Wengrowski
Chemical mixtures and environmental effects: a pilot study to assess ecological exposure and effects in streams
Assessment and management of the risks of exposure to complex chemical mixtures in streams are priorities for human and environmental health organizations around the world. The current lack of information on the composition and variability of environmental mixtures and a limited understanding of their combined effects are fundamental obstacles to timely identification and prevention of adverse hum
Authors
Herbert T. Buxton, Timothy J. Reilly, Kathryn Kuivila, Dana W. Kolpin, Paul M. Bradley, Daniel L. Villeneuve, Marc A. Mills
Estuarine bed-sediment-quality data collected in New Jersey and New York after Hurricane Sandy, 2013
This report describes a reconnaissance study of estuarine bed-sediment quality conducted June–October 2013 in New Jersey and New York after Hurricane Sandy in October 2012 to assess the extent of contamination and the potential long-term human and ecological impacts of the storm. The study, funded through the Disaster Relief Appropriations Act of 2013 (PL 113-2), was conducted by the U.S. Geologic
Authors
Jeffrey M. Fischer, Patrick J. Phillips, Timothy J. Reilly, Michael J. Focazio, Keith A. Loftin, William Benzel, Daniel Jones, Kelly L. Smalling, Shawn C. Fisher, Irene J. Fisher, Luke R. Iwanowicz, Kristin M. Romanok, Darkus E. Jenkins, Luke Bowers, Adam Boehlke, William T. Foreman, Anna C. Deetz, Lisa G. Carper, Thomas E. Imbrigiotta, Justin E. Birdwell
Characterization of selected bed-sediment-bound organic and inorganic contaminants and toxicity, Barnegat Bay and major tributaries, New Jersey, 2012
A study of bed-sediment toxicity and organic and inorganic contaminants was conducted by the U.S. Geological Survey (USGS) in cooperation with the New Jersey Department of Environmental Protection (NJDEP). Bed-sediment samples were collected once from 22 sites in Barnegat Bay and selected major tributaries during August–September 2012 and analyzed for toxicity and a suite of organic and inorganic
Authors
Kristin M. Romanok, Timothy J. Reilly, Anthony R. Lopez, John J. Trainor, Michelle Hladik, Jacob K. Stanley, Daniel Farrar
Unsaturated flow characterization utilizing water content data collected within the capillary fringe
An analysis is presented to determine unsaturated zone hydraulic parameters based on detailed water content profiles, which can be readily acquired during hydrological investigations. Core samples taken through the unsaturated zone allow for the acquisition of gravimetrically determined water content data as a function of elevation at 3 inch intervals. This dense spacing of data provides several m
Authors
Arthur Baehr, Timothy J. Reilly
Occurrence of pesticides in groundwater and sediments and mineralogy of sediments and grain coatings underlying the Rutgers Agricultural Research and Extension Center, Upper Deerfield, New Jersey, 2007
Water and sediment samples were collected from June through October 2007 from seven plots at the Rutgers Agricultural Research and Extension Center in Upper Deerfield, New Jersey, and analyzed for a suite of pesticides (including fungicides) and other physical and chemical parameters (including sediment mineralogy) by the U.S. Geological Survey. Plots were selected for inclusion in this study on t
Authors
Timothy J. Reilly, Kelly L. Smalling, Michael T. Meyer, Mark W. Sandstrom, Michelle Hladik, Adam R. Boehlke, Neil S. Fishman, William A. Battaglin, Kathryn Kuivila
Assessing the potential effects of fungicides on nontarget gut fungi (trichomycetes) and their associated larval black fly hosts
Fungicides are moderately hydrophobic and have been detected in water and sediment, particularly in agricultural watersheds, but typically are not included in routine water quality monitoring efforts. This is despite their widespread use and frequent application to combat fungal pathogens. Although the efficacy of these compounds on fungal pathogens is well documented, little is known about their
Authors
Emma R. Wilson, Kelly L. Smalling, Timothy J. Reilly, Elmer Gray, Laura Bond, Lance Steele, Prasanna Kandel, Alison Chamberlin, Justin Gause, Nicole Reynolds, Ian Robertson, Stephen Novak, Kevin Feris, Merlin M. White
Occurrence of fungicides and other pesticides in surface water, groundwater, and sediment from three targeted-use areas in the United States, 2009
Surface-water, groundwater, and suspended- and bedsediment samples were collected in three targeted-use areas in the United States where potatoes were grown during 2009 and analyzed for an extensive suite of fungicides and other pesticides by gas chromatograph/mass spectrometry and liquid chromatography with tandem mass spectrometry. Fungicides were detected in all environmental matrices sampled d
Authors
James L. Orlando, Kelly L. Smalling, Timothy J. Reilly, Adam Boehlke, Michael T. Meyer, Kathryn Kuivila
Occurrence and persistence of fungicides in bed sediments and suspended solids from three targeted use areas in the United States
To document the environmental occurrence and persistence of fungicides, a robust and sensitive analytical method was used to measure 34 fungicides and an additional 57 current-use pesticides in bed sediments and suspended solids collected from areas of intense fungicide use within three geographic areas across the United States. Sampling sites were selected near or within agricultural research far
Authors
Kelly L. Smalling, Timothy J. Reilly, Mark W. Sandstrom, Kathryn Kuivila
Dissolved pesticides, dissolved organic carbon, and water-quality characteristics in selected Idaho streams, April--December 2010
Water-quality samples were collected from April through December 2010 from four streams in Idaho and analyzed for a suite of pesticides, including fungicides, by the U.S. Geological Survey. Water samples were collected from two agricultural and two nonagricultural (control) streams approximately biweekly from the beginning of the growing season (April) through the end of the calendar year (Decembe
Authors
Timothy J. Reilly, Kelly L. Smalling, Emma R. Wilson, William A. Battaglin
Assessment of physical, chemical, and hydrologic factors affecting the infiltration of treated wastewater in the New Jersey Coastal Plain, with emphasis on the Hammonton Land Application Facility
A hydrogeologic and water-quality investigation of the Hammonton Land Application Facility (Hammonton LAF) in Hammonton, New Jersey, was conducted to determine the factors that impede the infiltration of treated wastewater and to assess the potential for similar conditions to exist elsewhere in the Coastal Plain of New Jersey (particularly within the Pinelands National Reserve). Gamma logs, sedime
Authors
Timothy J. Reilly, Kristin M. Romanok, Steven Tessler, Jeffrey M. Fischer
Methodology to evaluate the effect of sorption in the unsaturated zone on the storage of nitrate and other ions and their transport across the water table, southern New Jersey
A new field-based approach for determining sorption in the unsaturated zone and its effect on the storage of ions and their transport in recharge to ground water has been demonstrated for a small agricultural watershed in the Coastal Plain of southern New Jersey. Moisture-content and chemical-concentration data obtained from unsaturated-zone-core and shallow-ground-water samples were used to estim
Authors
Timothy J. Reilly, Arthur L. Baehr
Science and Products
Filter Total Items: 26
Screening tool to evaluate the vulnerability of down-gradient receptors to groundwater contaminants from uncapped landfills
A screening tool for quantifying levels of concern for contaminants detected in monitoring wells on or near landfills to down-gradient receptors (streams, wetlands and residential lots) was developed and evaluated. The tool uses Quick Domenico Multi-scenario (QDM), a spreadsheet implementation of Domenico-based solute transport, to estimate concentrations of contaminants reaching receptors under s
Authors
Ronald J. Baker, Timothy J. Reilly, Anthony R. Lopez, Kristin M. Romanok, Edward W Wengrowski
Chemical mixtures and environmental effects: a pilot study to assess ecological exposure and effects in streams
Assessment and management of the risks of exposure to complex chemical mixtures in streams are priorities for human and environmental health organizations around the world. The current lack of information on the composition and variability of environmental mixtures and a limited understanding of their combined effects are fundamental obstacles to timely identification and prevention of adverse hum
Authors
Herbert T. Buxton, Timothy J. Reilly, Kathryn Kuivila, Dana W. Kolpin, Paul M. Bradley, Daniel L. Villeneuve, Marc A. Mills
Estuarine bed-sediment-quality data collected in New Jersey and New York after Hurricane Sandy, 2013
This report describes a reconnaissance study of estuarine bed-sediment quality conducted June–October 2013 in New Jersey and New York after Hurricane Sandy in October 2012 to assess the extent of contamination and the potential long-term human and ecological impacts of the storm. The study, funded through the Disaster Relief Appropriations Act of 2013 (PL 113-2), was conducted by the U.S. Geologic
Authors
Jeffrey M. Fischer, Patrick J. Phillips, Timothy J. Reilly, Michael J. Focazio, Keith A. Loftin, William Benzel, Daniel Jones, Kelly L. Smalling, Shawn C. Fisher, Irene J. Fisher, Luke R. Iwanowicz, Kristin M. Romanok, Darkus E. Jenkins, Luke Bowers, Adam Boehlke, William T. Foreman, Anna C. Deetz, Lisa G. Carper, Thomas E. Imbrigiotta, Justin E. Birdwell
Characterization of selected bed-sediment-bound organic and inorganic contaminants and toxicity, Barnegat Bay and major tributaries, New Jersey, 2012
A study of bed-sediment toxicity and organic and inorganic contaminants was conducted by the U.S. Geological Survey (USGS) in cooperation with the New Jersey Department of Environmental Protection (NJDEP). Bed-sediment samples were collected once from 22 sites in Barnegat Bay and selected major tributaries during August–September 2012 and analyzed for toxicity and a suite of organic and inorganic
Authors
Kristin M. Romanok, Timothy J. Reilly, Anthony R. Lopez, John J. Trainor, Michelle Hladik, Jacob K. Stanley, Daniel Farrar
Unsaturated flow characterization utilizing water content data collected within the capillary fringe
An analysis is presented to determine unsaturated zone hydraulic parameters based on detailed water content profiles, which can be readily acquired during hydrological investigations. Core samples taken through the unsaturated zone allow for the acquisition of gravimetrically determined water content data as a function of elevation at 3 inch intervals. This dense spacing of data provides several m
Authors
Arthur Baehr, Timothy J. Reilly
Occurrence of pesticides in groundwater and sediments and mineralogy of sediments and grain coatings underlying the Rutgers Agricultural Research and Extension Center, Upper Deerfield, New Jersey, 2007
Water and sediment samples were collected from June through October 2007 from seven plots at the Rutgers Agricultural Research and Extension Center in Upper Deerfield, New Jersey, and analyzed for a suite of pesticides (including fungicides) and other physical and chemical parameters (including sediment mineralogy) by the U.S. Geological Survey. Plots were selected for inclusion in this study on t
Authors
Timothy J. Reilly, Kelly L. Smalling, Michael T. Meyer, Mark W. Sandstrom, Michelle Hladik, Adam R. Boehlke, Neil S. Fishman, William A. Battaglin, Kathryn Kuivila
Assessing the potential effects of fungicides on nontarget gut fungi (trichomycetes) and their associated larval black fly hosts
Fungicides are moderately hydrophobic and have been detected in water and sediment, particularly in agricultural watersheds, but typically are not included in routine water quality monitoring efforts. This is despite their widespread use and frequent application to combat fungal pathogens. Although the efficacy of these compounds on fungal pathogens is well documented, little is known about their
Authors
Emma R. Wilson, Kelly L. Smalling, Timothy J. Reilly, Elmer Gray, Laura Bond, Lance Steele, Prasanna Kandel, Alison Chamberlin, Justin Gause, Nicole Reynolds, Ian Robertson, Stephen Novak, Kevin Feris, Merlin M. White
Occurrence of fungicides and other pesticides in surface water, groundwater, and sediment from three targeted-use areas in the United States, 2009
Surface-water, groundwater, and suspended- and bedsediment samples were collected in three targeted-use areas in the United States where potatoes were grown during 2009 and analyzed for an extensive suite of fungicides and other pesticides by gas chromatograph/mass spectrometry and liquid chromatography with tandem mass spectrometry. Fungicides were detected in all environmental matrices sampled d
Authors
James L. Orlando, Kelly L. Smalling, Timothy J. Reilly, Adam Boehlke, Michael T. Meyer, Kathryn Kuivila
Occurrence and persistence of fungicides in bed sediments and suspended solids from three targeted use areas in the United States
To document the environmental occurrence and persistence of fungicides, a robust and sensitive analytical method was used to measure 34 fungicides and an additional 57 current-use pesticides in bed sediments and suspended solids collected from areas of intense fungicide use within three geographic areas across the United States. Sampling sites were selected near or within agricultural research far
Authors
Kelly L. Smalling, Timothy J. Reilly, Mark W. Sandstrom, Kathryn Kuivila
Dissolved pesticides, dissolved organic carbon, and water-quality characteristics in selected Idaho streams, April--December 2010
Water-quality samples were collected from April through December 2010 from four streams in Idaho and analyzed for a suite of pesticides, including fungicides, by the U.S. Geological Survey. Water samples were collected from two agricultural and two nonagricultural (control) streams approximately biweekly from the beginning of the growing season (April) through the end of the calendar year (Decembe
Authors
Timothy J. Reilly, Kelly L. Smalling, Emma R. Wilson, William A. Battaglin
Assessment of physical, chemical, and hydrologic factors affecting the infiltration of treated wastewater in the New Jersey Coastal Plain, with emphasis on the Hammonton Land Application Facility
A hydrogeologic and water-quality investigation of the Hammonton Land Application Facility (Hammonton LAF) in Hammonton, New Jersey, was conducted to determine the factors that impede the infiltration of treated wastewater and to assess the potential for similar conditions to exist elsewhere in the Coastal Plain of New Jersey (particularly within the Pinelands National Reserve). Gamma logs, sedime
Authors
Timothy J. Reilly, Kristin M. Romanok, Steven Tessler, Jeffrey M. Fischer
Methodology to evaluate the effect of sorption in the unsaturated zone on the storage of nitrate and other ions and their transport across the water table, southern New Jersey
A new field-based approach for determining sorption in the unsaturated zone and its effect on the storage of ions and their transport in recharge to ground water has been demonstrated for a small agricultural watershed in the Coastal Plain of southern New Jersey. Moisture-content and chemical-concentration data obtained from unsaturated-zone-core and shallow-ground-water samples were used to estim
Authors
Timothy J. Reilly, Arthur L. Baehr