Environ Sci Technol 2013 Oct 2;47(20):11849-57. Epub 2013 Oct 2.
Division of Earth and Ocean Sciences, Nicholas School of the Environment, Duke University , Durham, North Carolina 27708, United States.
Download full-text PDF
Environ Sci Technol 2013 Apr 14;47(7):3472-81. Epub 2013 Mar 14.
Center for Healthy Environments and Communities, Graduate School of Public Health, University Of Pittsburgh, 4200 Fifth Avenue Pittsburgh, PA 15260, USA.
Unconventional natural gas development in Pennsylvania has created a new wastewater stream. In an effort to stop the discharge of Marcellus Shale unconventional natural gas development wastewaters into surface waters, on May 19, 2011 the Pennsylvania Department of Environmental Protection (PADEP) requested drilling companies stop disposing their wastewater through wastewater treatment plants (WWTPs). This research includes a chemical analysis of effluents discharged from three WWTPs before and after the aforementioned request. Read More
Environ Sci Technol 2014 10;48(3):1911-20. Epub 2014 Jan 10.
Department of Civil and Environmental Engineering, Carnegie Mellon University , 5000 Forbes Avenue, Pittsburgh, Pennsylvania 15213, United States.
This study estimates the life cycle water consumption and wastewater generation impacts of a Marcellus shale gas well from its construction to end of life. Direct water consumption at the well site was assessed by analysis of data from approximately 500 individual well completion reports collected in 2010 by the Pennsylvania Department of Conservation and Natural Resources. Indirect water consumption for supply chain production at each life cycle stage of the well was estimated using the economic input-output life cycle assessment (EIO-LCA) method. Read More
Sci Total Environ 2014 Jan 29;466-467:1085-93. Epub 2013 Aug 29.
California Water Science Center, U.S. Geological Survey, 6000 J Street, Placer Hall, Sacramento, CA 95819, USA. Electronic address:
Fluids co-produced with oil and gas production (produced waters) are often brines that contain elevated concentrations of bromide. Bromide is an important precursor of several toxic disinfection by-products (DBPs) and the treatment of produced water may lead to more brominated DBPs. To determine if wastewater treatment plants that accept produced waters discharge greater amounts of brominated DBPs, water samples were collected in Pennsylvania from four sites along a large river including an upstream site, a site below a publicly owned wastewater treatment plant (POTW) outfall (does not accept produced water), a site below an oil and gas commercial wastewater treatment plant (CWT) outfall, and downstream of the POTW and CWT. Read More
Environ Sci Technol 2015 Aug 21;49(15):9347-54. Epub 2015 Jul 21.
‡National Energy Technology Laboratory, Pittsburgh, Pennsylvania 15236, United States.
Natural gas extraction from Marcellus Shale generates large quantities of flowback water that contain high levels of salinity, heavy metals, and naturally occurring radioactive material (NORM). This water is typically stored in centralized storage impoundments or tanks prior to reuse, treatment or disposal. The fate of Ra-226, which is the dominant NORM component in flowback water, in three centralized storage impoundments in southwestern Pennsylvania was investigated during a 2. Read More