Hydraulic Fracturing and Brook Trout Habitat in the Marcellus Shale Region: Potential Impacts and Research Needs
Weltman-Fahs M & JM Taylor
The expansion of hydraulic fracturing poses multiple threats to surface waters, which can be tied to key ecological attributes that limit brook trout populations. Here, we expand current conceptual models to identify three potential
pathways of risk between surface water threats associated with increased natural gas development and life history attributes of brook trout: hydrological, physical, and chemical.
Analysis of BTEX groundwater concentration from surface spills associated with hydraulic fracturing operations
Journal of the Air & Waste Management Association
14 Jan 2013
Gross SA, Avens HJ , Banducci AM, Sahmel J, Panko JM, Tvermoes BE
Concerns have arisen among the public regarding the potential for drinking water contamination from the migration of methane gas and hazardous chemicals associated with hydraulic fracturing and horizontal drilling. However, little attention has been paid to the potential for groundwater contamination resulting from surface spills from storage and production facilities at active well sites
Geochemical evidence for possible natural migration of Marcellus Formation brine to shallow aquifers in Pennsylvania
Nathaniel R. Warner, Robert B. Jackson, Thomas H. Darrah, Stephen G. Osborn, Adrian Down, Kaiguang Zhao, Alissa White, and Avner Vengosh
This study examines hydraulic connectivity between shale gas formations and the overlying shallow drinking water aquifers.
Potential Contaminant Pathways from Hydraulically Fractured Shale to Aquifers
This study uses interpretative modeling to examine potential contaminant pathways from fractured shale to aquifers.
Water pollution risk associated with natural gas extraction from the Marcellus Shale
Risk Analysis: An International Journal
28 December 2011 (ePub; printed August 2012)
Rozell DJ, Reaven SJ.
Using probability bounds analysis, this study assessed the likelihood of water contamination from natural gas extraction in the Marcellus Shale. Probability bounds analysis is well suited when data are sparse and parameters highly uncertain. The study model identified five pathways of water contamination: transportation spills, well casing leaks, leaks through fractured rock, drilling site discharge, and wastewater disposal. Probability boxes were generated for each pathway. The potential contamination risk and epistemic uncertainty associated with hydraulic fracturing wastewater disposal was several orders of magnitude larger than the other pathways.
Rapid expansion of natural gas development poses a threat to surface waters
Frontiers in Ecology & the Environment
06 Oct 2011
Sally Entrekin, Michelle Evans-White, Brent Johnson, and Elisabeth Hagenbuch
This paper discusses some of the risks to surface water from natural gas development.
Should Fracking Stop? Extracting gas from shale increases the availability of this resource, but the health and environmental risks may be too high.
Robert W. Howarth, Anthony Ingraffea & Terry Engelder
Point and counterpoint commentary provided by Howarth, Ingraffea, & Engelder on natural gas extraction of shale formations in Nature.
Methane Contamination of Drinking Water Accompanying Gas-Well Drilling and Hydraulic Fracturing
Stephen G. Osborn, Avner Vengosh, Nathaniel R. Warner, and Robert B. Jackson
This study documents systematic evidence for methane contamination of drinking water associated with shale gas extraction in aquifers overlying the Marcellus and Utica shale formations of northeastern Pennsylvania and upstate New York.