119
Molofsky, L. J., Connor, J. A., Wylie, A. S., Wagner, T., & Farhat, S. K. (2013, May–June).
Evaluation of methane sources in groundwater in Northeastern Pennsylvania. Groundwater,
51(3), 333–349.
Orem, W. H., Tatu, C. A., Varonka, M. S., Lerch, H. E., Bates, A. L., Engle, M. A., Crosby, L. M., &
McIntosh, J. (2014). Organic substances in produced and formation water from unconventional
natural gas extraction in coal and shale. International Journal of Coal Geology, 126, 20–31.
Orem, W., Varonka, M., Crosby, L., Haase, K., Loftin, K., Hladik, M., Akob, D. M., Tatu, C.,
Mumford, A., Jaeschke, J., Bates, A., Schell, T., & Cozzarelli, I. (2017, May). Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations. Applied Geochemistry, 80, 155–167.
Osborn, S. G., Vengosh, A., Warner, N. R., & Jackson, R. B. (2011). Methane contamination of
drinking water accompanying gas-well drilling and hydraulic fracturing. Proceedings of the
National Academy of Sciences, 108(20), 8172–8176.
Phan, T. T., Capo, R. C., Stewart, B. W., Graney, J. R., Johnson, J. D., Sharma, S., & Toro, J. (2015).
Trace metal distribution and mobility in drill cuttings and produced waters from Marcellus
shale gas extraction: Uranium, arsenic, barium. Applied Geochemistry, 60, 89–103.
Pope, P.G., 2012, Parker County study: Presentation at stray gas incidence and response forum,
July 24–26, Cleveland, Ohio, in Veil, J. (2012). A white paper summarizing the stray gas incidence & response forum, Ground Water Protection Council, 48 p. http://www.gwpc.org/sites/
default/files/files/stray%20gas%20white%20paper-final(2).pdf. Accessed 25 Oct 2019.
Renock, D., Landis, J. D., & Sharma, M. (2016). Reductive weathering of black shale and release
of barium during hydraulic fracturing. Applied Geochemistry, 65, 73–86.
Rodriguez, R. S., & Soeder, D. J. (2015). Evolving water management practices in shale oil & gas
development. Journal of Unconventional Oil and Gas Resources, 10, 18–24.
Rowan, E. L., & Kraemer, T. F. (2012). Radon-222 Content of natural gas samples from Upper
and Middle Devonian sandstone and shale reservoirs in Pennsylvania – Preliminary data.
U.S. Geological Survey OFR 2012–1159, 6 p, http://pubs.usgs.gov/of/2012/1159.
Rowan, E. L., Engle, M. A., Kirby, C. S., & Kraemer, T. F. (2011). Radium content of oil- and gasfield produced waters in the northern Appalachian Basin (USA) – Summary and discussion of
data. U.S. Geological Survey SIR 2011–5135, 31 p.
Rozell, D. J., & Reaven, S. J. (2012, August). Water pollution risk associated with natural gas
extraction from the Marcellus shale. Risk Analysis, 32(8), 1382–1393.
Sandl, E., Cahill, A. G., Beckie, R. D., & Welch, L. A. (2019). Assessing the association between
oil and gas well attributes and the occurrence for fugitive gas migration in British Columbia.
(Abstract) presentation H54B-02, AGU Fall Meeting, 9–13 December, San Francisco, CA,
USA, American Geophysical Union.
Schwartz, M. O. (2015). Modelling the hypothetical methane-leakage in a shale-gas project and
the impact on groundwater quality. Environmental Earth Sciences, 73, 4619–4632. https://doi.
org/10.1007/s12665-014-3787-3.
Siegel, D. I., Azzolina, N. A., Smith, B. J., Perry, A. E., & Bothun, R. L. (2015). Methane concentrations in water wells unrelated to proximity to existing oil and gas wells in northeastern
Pennsylvania. Environmental Science & Technology, 49, 4106–4112.
Soeder, D. J. (2015). Adventures in groundwater monitoring: Why has it been so difficult to obtain
groundwater data near shale gas wells? Environmental Geosciences, 22(4), 139–148.
Soeder, D. J. (2017). Unconventional: The development of natural gas from the Marcellus shale
(GSA special paper 527). Boulder, CO: Geological Society of America Books. 143 p.
Soeder, D. J. (2018). Groundwater quality and hydraulic fracturing: Current understanding and
science needs. Groundwater, 56(6), 852–858.
Soeder, D. J., & Kent, D. B. (2018). When oil and water mix: Understanding the environmental
impacts of shale development. GSA Today, 28(9), 4–10.
Soeder, D. J., Sharma, S., Pekney, N., Hopkinson, L., Dilmore, R., Kutchko, B., Stewart, B., Carter,
K., Hakala, A., & Capo, R. (2014). An approach for assessing engineering risk from shale gas
wells in the United States. International Journal of Coal Geology, 126, 4–19.
References
Molofsky, L. J., Connor, J. A., Wylie, A. S., Wagner, T., & Farhat, S. K. (2013, May–June).
Evaluation of methane sources in groundwater in Northeastern Pennsylvania. Groundwater,
51(3), 333–349.
Orem, W. H., Tatu, C. A., Varonka, M. S., Lerch, H. E., Bates, A. L., Engle, M. A., Crosby, L. M., &
McIntosh, J. (2014). Organic substances in produced and formation water from unconventional
natural gas extraction in coal and shale. International Journal of Coal Geology, 126, 20–31.
Orem, W., Varonka, M., Crosby, L., Haase, K., Loftin, K., Hladik, M., Akob, D. M., Tatu, C.,
Mumford, A., Jaeschke, J., Bates, A., Schell, T., & Cozzarelli, I. (2017, May). Organic geochemistry and toxicology of a stream impacted by unconventional oil and gas wastewater disposal operations. Applied Geochemistry, 80, 155–167.
Osborn, S. G., Vengosh, A., Warner, N. R., & Jackson, R. B. (2011). Methane contamination of
drinking water accompanying gas-well drilling and hydraulic fracturing. Proceedings of the
National Academy of Sciences, 108(20), 8172–8176.
Phan, T. T., Capo, R. C., Stewart, B. W., Graney, J. R., Johnson, J. D., Sharma, S., & Toro, J. (2015).
Trace metal distribution and mobility in drill cuttings and produced waters from Marcellus
shale gas extraction: Uranium, arsenic, barium. Applied Geochemistry, 60, 89–103.
Pope, P.G., 2012, Parker County study: Presentation at stray gas incidence and response forum,
July 24–26, Cleveland, Ohio, in Veil, J. (2012). A white paper summarizing the stray gas incidence & response forum, Ground Water Protection Council, 48 p. http://www.gwpc.org/sites/
default/files/files/stray%20gas%20white%20paper-final(2).pdf. Accessed 25 Oct 2019.
Renock, D., Landis, J. D., & Sharma, M. (2016). Reductive weathering of black shale and release
of barium during hydraulic fracturing. Applied Geochemistry, 65, 73–86.
Rodriguez, R. S., & Soeder, D. J. (2015). Evolving water management practices in shale oil & gas
development. Journal of Unconventional Oil and Gas Resources, 10, 18–24.
Rowan, E. L., & Kraemer, T. F. (2012). Radon-222 Content of natural gas samples from Upper
and Middle Devonian sandstone and shale reservoirs in Pennsylvania – Preliminary data.
U.S. Geological Survey OFR 2012–1159, 6 p, http://pubs.usgs.gov/of/2012/1159.
Rowan, E. L., Engle, M. A., Kirby, C. S., & Kraemer, T. F. (2011). Radium content of oil- and gasfield produced waters in the northern Appalachian Basin (USA) – Summary and discussion of
data. U.S. Geological Survey SIR 2011–5135, 31 p.
Rozell, D. J., & Reaven, S. J. (2012, August). Water pollution risk associated with natural gas
extraction from the Marcellus shale. Risk Analysis, 32(8), 1382–1393.
Sandl, E., Cahill, A. G., Beckie, R. D., & Welch, L. A. (2019). Assessing the association between
oil and gas well attributes and the occurrence for fugitive gas migration in British Columbia.
(Abstract) presentation H54B-02, AGU Fall Meeting, 9–13 December, San Francisco, CA,
USA, American Geophysical Union.
Schwartz, M. O. (2015). Modelling the hypothetical methane-leakage in a shale-gas project and
the impact on groundwater quality. Environmental Earth Sciences, 73, 4619–4632. https://doi.
org/10.1007/s12665-014-3787-3.
Siegel, D. I., Azzolina, N. A., Smith, B. J., Perry, A. E., & Bothun, R. L. (2015). Methane concentrations in water wells unrelated to proximity to existing oil and gas wells in northeastern
Pennsylvania. Environmental Science & Technology, 49, 4106–4112.
Soeder, D. J. (2015). Adventures in groundwater monitoring: Why has it been so difficult to obtain
groundwater data near shale gas wells? Environmental Geosciences, 22(4), 139–148.
Soeder, D. J. (2017). Unconventional: The development of natural gas from the Marcellus shale
(GSA special paper 527). Boulder, CO: Geological Society of America Books. 143 p.
Soeder, D. J. (2018). Groundwater quality and hydraulic fracturing: Current understanding and
science needs. Groundwater, 56(6), 852–858.
Soeder, D. J., & Kent, D. B. (2018). When oil and water mix: Understanding the environmental
impacts of shale development. GSA Today, 28(9), 4–10.
Soeder, D. J., Sharma, S., Pekney, N., Hopkinson, L., Dilmore, R., Kutchko, B., Stewart, B., Carter,
K., Hakala, A., & Capo, R. (2014). An approach for assessing engineering risk from shale gas
wells in the United States. International Journal of Coal Geology, 126, 4–19.
References