1. Shale Gas Extraction Wastewater Issues Panel Discussion August 2, 2011 Irving, TX EPA/RIVPA 27 th Annual Pretreatment Workshop Jan Marie Pickrel US EPA, Office of Wastewater Management

2. Water Regulation of Fracking Fluids 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

3. Voluntary Information Request 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 BJ ServicesRPC, Inc. Complete Production ServicesSchlumberger HalliburtonSuperior Well Services Key Energy ServicesWeatherford Patterson-UTI

4. EPA Hydraulic Fracturing Study Plan 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/D3483 AB445AE61418525775900603E79/$File/Draft+Plan+to+Study+the+Potential+Impacts+of +Hydraulic+Fracturing+on+Drinking+Water+Resources-February+2011.pdf

5. Research Questions for Each Stage of the Hydraulic Fracturing Water Lifecycle Figure 1 from Draft Hydraulic Fracturing Study Plan, February 7, 2011

6. 7 Case Study Field Locations 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. 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

8. 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

9. http://www.dcnr.state.pa.us/topogeo/pub/openfile/ofog10_01.aspx 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 Chlorides x Total Dissolved Solids