“The EPA did not support quantitatively its conclusion about lack of evidence for widespread, systemic impacts of hydraulic fracturing on drinking water resources, and did not clearly describe the system(s) of interest (e.g., groundwater, surface water), the scale of impacts (i.e., local or regional), nor the definitions of “systemic” and “widespread,” the report reads.
The SAB report is a blow to the oil and gas industry which had backed the EPA’s draft conclusions ever since the preliminary report included the landmark statement that emboldened the industry’s position that fracking is safe. It comes just weeks after thousands of environmentalists marched ahead of the Democratic National Convention, calling for a nationwide ban on fracking.
The EPA developed the draft assessment report on fracking in response to a request in 2009 from Congress, which urged the EPA to review the relationship between hydraulic fracturing and drinking water. Experts havetold ThinkProgress in the past that the study process could be the preamble to a federal fracking rule, given that the embattled Mercury Air Toxics Standard — commonly referred to as MATS — started in a similar fashion.
The SAB, comprised of 30 experts, also recommended the EPA discuss “significant data limitations and uncertainties” when presenting major findings on the fracking report, a document that condenses available scientific literature and data on the potential impacts of fracturing. It furthermore said the EPA should compile toxicological information on the chemicals employed in fracturing in “a more inclusive manner,” and recognize the many stresses fracking has on surface or groundwater resources.