The House Science, Space, and Technology Subcommittees on Environment and Energy held a joint hearing on July 24 to examine Environmental Protection Agency investigations of the lifecycle of water used in fracking. Several members asked why the agency was not conducting a quantitative risk assessment, and Director of the Office of Science Policy Dr. Fred Hauchman said there is not enough peer-reviewed literature to conduct an assessment at this time. The study will analyze available literature, public comments, and stakeholder comments; a final draft will be published in late 2014.