Gradient

Recent Scientific Papers

In addition to the searchable list below, Gradient offers two of its own publications through the full website. Trends focuses on issues in environmental risk science and EH&S Nano News focuses on the latest in nanotechnology.


Showing Results for: "Flewelling"

Flewelling, S; Tymchak, M; Langseth, D; Waterfield, G. 2017

Water Rights.

Presented at Gradient's Trends 69 Webinar

Flewelling, SA. 2017

When to Employ Environmental Models in Litigation.

Presented at the Defense Research Institute (DRI) Toxic Torts and Environmental Law Seminar, New Orleans, LA

Flewelling, S. 2017

Increasing water use will escalate disputes.

Gradient Trends - Risk Science & Application 69:1-2,6.

Flewelling, S; Boroumand, A; Herman, K. 2016

A Conceptual Framework for the Feasibility of Remediating MGP Tar in Fractured Bedrock.

Presented at Battelle's Tenth International Conference on Remediation of Chlorinated and Recalcitrant Compounds, Palm Springs, CA, May 22-26

Lewis, A; Seeley, M; Pizzurro, D; Sharma, M; Flewelling, S. 2015

A Hierarchical Framework for the Selection and Development of Toxicity Criteria for the Evaluation of Potential Drinking Water Risks from Hydraulic Fracturing Fluids.

Presented at the Society of Toxicology (SOT) 54th Annual Meeting, San Diego, CA, March 22-26

Herman, K; Flewelling, SA; Bittner, AB; Tymchak, MP; Swamy, M. 2015

Alternate Endpoints for Remediating NAPL-Impacted Sites.

Presented at EPRI/AWMA Env-Vision Conference, Crystal City, VA

Flewelling, SA; Sharma, M; Merrill, DE; Lewis, AS; Rominger, JT. 2015

Evaluation of Human Health Risks Via Drinking Water for Spills of Hydraulic Fracturing Fluids.

Presented at American Association of Petroleum Geologists (AAPG) Annual Convention 2015, Denver, Colorado, May 31-June 3

Flewelling, SA; Hornberger, GM; Herman, JS; Mills, AL; Robertson, WM. 2014

Diel patterns in coastal-stream nitrate concentrations linked to evapotranspiration in the riparian zone of a low-relief, agricultural catchment.

Hydrol. Processes 28:2150-2158.

Flewelling, SA; Sharma, M. 2014

Constraints on upward migration of hydraulic fracturing fluid and brine.

Ground Water 52:9-19.

Tymchak, MP; Flewelling, SA. 2014

Evaluating Methods to Differentiate Natural and Induced Seismicity.

AAPG Annual Convention and Exhibition

Flewelling, SA; Sharma, M. 2014

Interpretation of the Data Collected As Part of US EPA's Investigation at Pavillion, WY.

American Association of Petroleum Geologists 2014 Annual Convention and Exhibition, Houston, Texas

Fitzsimmons, M; Flewelling, SA; Tymchak, MP. 2014

Will earthquakes shake up the shale wastewater debate?

Law360

Flewelling, S; Sharma, M; Lewis, A; Rominger, J; Tymchak, M. 2014

Human Health Risk Evaluation for Hydraulic Fracturing Fluid Additives.

Presented at Society for Risk Analysis Annual Meeting, Denver, Colorado, December 7-10

Flewelling, S; Tymchak, M. 2014

Emerging trends in waste generation and disposal.

Gradient Trends - Risk Science & Application 60:1-2.

Tymchak, M; Flewelling, S. 2014

Underground injection: Whole lotta shakin going on?

Gradient Trends - Risk Science & Application 60:3,5.

Flewelling, SA; Tymchak, MP; Sharma, M. 2013

A Scaling Function to Predict Hydraulic Fracture Limits in Deep Shale and Tight Gas Formations.

Presented at the American Association of Petroleum Geologists Annual Convention and Exhibition, Pittsburgh, PA, May 20-22.

Flewelling, SA; Tymchak, MP; Warpinski, NW. 2013

Hydraulic fracture height limits and fault interactions in tight oil and gas formations.

Geophysical Res. Lett. 40:3602-3606.

Flewelling, SA; Tymchak, MP. 2013

Hydraulic Fracture Height Limits and Fault Interactions in Tight Oil and Gas Formations.

20th International Petroleum Environmental Consortium Conference, San Antonio, Texas

Tymchak, MP; Flewelling, SA. 2013

A Comparison of Recent Seismic Events Proximate to Underground Injection Wells.

20th International Petroleum Environmental Consortium Conference, San Antonio, Texas

Sharma, M; Flewelling, SA. 2013

Human Health Risk Evaluation for Hydraulic Fracturing Fluid Additives.

20th International Petroleum Environmental Consortium Conference, San Antonio, Texas

Tymchak, MP; Flewelling, SA. 2013

Evaluating the Gutenberg-Richter Relationship for Induced Seismicity.

American Geophysical Union 46th Annual Fall Meeting, San Francisco, CA

Flewelling, SA; Tymchak, MP; Sharma, M. 2013

Physical Controls on Potential Upward Migration of Hydraulic Fracturing Fluid and Brine from Tight Oil and Gas Formations.

American Geophysical Union 46th Annual Fall Meeting, San Francisco, CA

McFadden, G; Flewelling, SA; Herman, JS; Mills, AL. 2013

Generality of Nitrate Removal in Streambed Sediment on the Southern Delmarva Peninsula.

American Geophysical Union 46th Annual Fall Meeting, San Francisco, CA

Flewelling, SA; Herman, JS; Hornberger, GM; Mills, AL. 2012

Travel time controls the magnitude of nitrate discharge in groundwater bypassing the riparian zone to a stream on Virginias coastal plain.

Hydrol. Processes 26:1242-1253.

Flewelling, S. 2012

Potential HF chemical migration and risks.

Gradient Trends - Risk Science & Application 55:3,5.

Flewelling, SA; Sharma, M. 2011

The Timing of DNAPL Releases In A Fractured-Clay Setting.

Presented at the Society of Environmental Toxicology and Chemistry (SETAC) North America 32nd National Meeting, Boston, MA, November 13-17

Gu, C; Hornberger, GM; Mills, AL; Herman, JS; Flewelling, SA. 2007

Nitrate reduction in streambed sediments: Effects of flow and biogeochemical kinetics.

Water Resour. Res. 43:43-52.

Flewelling, SA; Hornberger, G; Herman, J; Mills, A. 2007

Spatial Distribution of Nitrate and Chloride Concentrations in Groundwater Seepage and the Effect of Evapotranspiration on Nitrate Removal.

American Geophysical Union Fall Meeting, San Francisco, CA, December 10-14