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Shale Gas Extraction Wastewater Issues Panel Discussion. Jan Marie Pickrel US EPA, Office of Wastewater Management. August 2, 2011 Irving, TX EPA/RIVPA 27 th Annual Pretreatment Workshop. Safe Drinking Water Act Underground Injection Control (UIC)
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Shale Gas ExtractionWastewater Issues Panel Discussion Jan Marie Pickrel US EPA, Office of Wastewater Management August 2, 2011 Irving, TX EPA/RIVPA 27th Annual Pretreatment Workshop
Safe Drinking Water Act • Underground Injection Control (UIC) • UIC Class II permitting guidance for use of diesel fuels in fracturing fluids • Clean Water Act • National Pollutant Discharge Elimination System (NPDES) • Pretreatment Water Regulation of Fracking Fluids
9 Natural Gas Service Companies • Chemical Composition of fluids used in fracturing • Data on impacts of chemicals on human health and the environment • Standard operating procedures at sites • Locations of sites where fracturing was conducted Voluntary Information Request
EPA directed by Congress to Study • Draft to EPA Science Advisory Board (SAB): 2/8/2011 • SAB Review of Plan: 3/7-8/2011 • Initial Results to public: 12/2012 • Report of further research: 2014 • Scope: “Lifespan of Water,” focus on drinking water impacts • Report: “Draft Plan to Study the Potential Impacts of Hydraulic Fracturing on Drinking Water Resources, ” February 2011 • EPA/600/D-11/001 www.epa.gov/research http://yosemite.epa.gov/sab/sabproduct.nsf/02ad90b136fc21ef85256eba00436459/D3483AB445AE61418525775900603E79/$File/Draft+Plan+to+Study+the+Potential+Impacts+of+Hydraulic+Fracturing+on+Drinking+Water+Resources-February+2011.pdf EPA Hydraulic Fracturing Study Plan
Research Questions for Each Stage of the Hydraulic Fracturing Water LifecycleFigure 1 from Draft Hydraulic Fracturing Study Plan, February 7, 2011
Haynesville Shale – DeSoto Parish, LA • Marcellus Shale – Washington Co., PA • Bakken Shale - Killdeer Co. & Dunn Co, ND • Barnett Shale - Wise Co. & Denton Co, TX • Marcellus Shale – Bradford Co. & Susquehanna Co., PA • Marcellus Shale – Washington Co., PA • Raton Basin – Los Animas Co., CO 7 Case Study Field Locations
Guidance for Implementing the Regulations: SDWA - UIC UIC Guidance for Permitting Oil and Natural Gas Hydraulic Fracturing Activities Using Diesel Fuels • 4 technical webinars with specific stakeholder groups in May 2011 http://water.epa.gov/type /groundwater/uic/class2/ hydraulicfracturing/ wells_hydroout.cfm
Guidance for Implementing the Regulations: NPDES/Pretreatment FAQ Memorandum – 3/17/2011 “Regulating Natural Gas Drilling in the Marcellus Shale under the NPDES Program” • http://www.epa.gov/npdes/pubs/hydrofracturing_faq_memo.pdf • http://www.epa.gov/npdes/pubs/hydrofracturing_faq.pdf Coming soon: Guidance for Permitting Authorities and POTW Control Authorities
Chlorides x Conductivity Conductivity x Total Dissolved Solids Chemistry and origin of oil and gas well brines in western Pennsylvania Dresel, P. E., and Rose, A. W., 2010 Pennsylvania Geological Survey, 4th ser., Open-File Report OFOG 10–01.0 http://www.dcnr.state.pa.us/topogeo/pub/openfile/ofog10_01.aspx Chlorides x Total Dissolved Solids