- 21 of 31 states have NO regulations specific to hydraulic facturing.
- 4 states *do* have detailed regulations guiding the "fracking" process (and PA is not among them)
- 10 drilling states require that fracturing chemicals be disclosed
- 0 states require that the volume of hydraulic fracturing fluid left underground be recorded.
Sources: State Oil and Natural Gas Regulations Designed to Protect Water Resources, May 2009, U.S. Department of Energy, office of Fossil Energy, National Energy Technology Lab, and the Ground Water Protection Council