Fracking technology has advanced considerably since it was first introduced. Perhaps the two most significant developments are mulit-well drilling pads (allowing for multiple wells to be drilled at a single drilling pad), and horizontal drilling (the well runs horizontally through the target formation, greatly increasing the amount of gas that may be produced from a well). Compared to conventional vertical wells, horizontal drilling requires much more fracking fluid in order to produce gas. 3-8 million gallons of fracking solution is necessary to open a single well, and that well may be re-fracked 10 or more times throughout its lifespan. Therefore, the quantity of fracking watse is far greater in horizontal drilling applications.
As for regulation of hydro-fracking, I do not believe the current regulatory frameworks are adequate. In 2005, Congress specifically exempted fracking wells from the Safe Drinking Water Act, in what many refer to as the “Halliburton loophole.” Currently there are no federal regulations that apply to the various fracking processes, although EPA has proposed air quality standards and has committed to propose requirements for treating wastewater. In the meantime, we have a patchwork of state and local regulations that are not comprehensive and that are rarely enforced. States are playing catch-up with evolving industry practices, and lack adequate resources, information or political will to ensure that communities are protected.
There is data that documents the numerous environmental impacts of fracking, but I’m not sure if any of it has been subjected to statistical analyses. EPA is in the middle of a large study that is expected to be finalized in 2014. NYSDEC just released its revised Draft Supplemental Generic Environmental Impact Statement, which may be the most comprehensive assessment of fracking currently available. It’s over 1,500 pages long, and is accompanied by a 250 page socio-economic study. I haven’t been able to read all of it yet, but there is definitely some useful information there.
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