“We found specific instances where one or more mechanisms led to impacts on drinking water resources, including contamination of drinking water wells…
Approximately 6,800 sources of drinking water for public water systems were located within one mile of at least one hydraulically fractured well … These drinking water sources served more than 8.6 million people year-round in 2013…
Hydraulic fracturing can also affect drinking water resources outside the immediate vicinity of a hydraulically fractured well.”Despite these findings, and EPA’s own admissions of “data limitations and uncertainties” as well as “the paucity of long-term systemic studies,” the agency stated in its conclusion that “there is no evidence fracking has led to widespread, systemic impacts on drinking water resources.”
“Spill data alone “gives sufficient pause to reconsider the statement” that there’s no evidence of systemic, widespread damage, said panelist Bruce Honeyman, professor emeritus at the Colorado School of Mines.
“It’s important to characterize and discuss the frequency and severity of outliers that have occurred,” said panelist Katherine Bennett Ensor, chairwoman of the Rice University Department of Statistics.
And panel member James Bruckner, a professor of pharmacology and toxicology at the University of Georgia, said the report glosses over the limited data and studies available to the agency.
“I do not think that the document’s authors have gone far enough to emphasize how preliminary these key conclusions are and how limited the factual bases are for their judgments,” Bruckner said.
Young, the University of California professor who suggested rewriting the top-line conclusion, faulted the document for trying “to draw a global and permanent conclusion about the safety or impacts of hydraulic fracturing at the national level” given the “uncertainties and data limitations described in the report.””
“In an analysis of more than 1,000 chemicals in fluids used in and created by hydraulic fracturing (fracking), Yale School of Public Health researchers found that many of the substances have been linked to reproductive and developmental health problems, and the majority had undetermined toxicity due to insufficient information.
Further exposure and epidemiological studies are urgently needed to evaluate potential threats to human health from chemicals found in fracking fluids and wastewater created by fracking.”