This excel file of Appendix A from the progress report contains tables of chemicals reported to be used in hydraulic fracturing fluids and chemicals detected in flowback and produced water. The EPA at this time has not made any judgment about the extent of exposure to these chemicals when used in hydraulic fracturing fluids or found in hydraulic fracturing wastewater, or their potential impacts on drinking water resources.

2012_progress_report_appendix_a.xlsx(7 pp, 95 K)