EPA Abandoned Fracking Investigation, and Will Do it Again
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He also wrote a letter to the EPA’s top administrator calling a draft report that concluded fracking likely helped pollute Pavillion’s drinking water “unsubstantiated” and pillorying it as part of an “Administration-wide effort to hinder and unnecessarily regulate hydraulic fracturing on the federal level.” He called for the EPA’s inspector general to open an investigation into the agency’s actions related to fracking.
When the EPA announced it would end its research in Pavillion, Inhofe – whose office did not respond to questions from ProPublica -- was quick to applaud.
“EPA thought it had a rock solid case linking groundwater contamination to hydraulic fracturing in Pavillion, WY, but we knew all along that the science was not there,” Inhofe said in a press release issued the day of the announcement.
Others, however, wonder whether a gun-shy EPA is capable of answering the pressing question of whether the nation’s natural gas boom will also bring a wave of environmental harm.
“The EPA has just put a ‘kick me’ sign on it,” John Hanger, a Democratic candidate for governor in Pennsylvania and the former secretary of the state’s Department of Environmental Protection, wrote on his blog in response to the EPA news about Pavillion. “Its critics from all quarters will now oblige.”
Before fracking became the subject of a high-stakes national debate, federal agencies appeared to be moving aggressively to study whether the drilling technique was connected to mounting complaints of water pollution and health problems near well sites nationwide.
As some states began to strengthen regulations for fracking, the federal government prepared to issue rules for how wells would be fracked on lands it directly controlled.
The EPA also launched prominent scientific studies in Texas, Wyoming and Pennsylvania, stepping into each case after residents voiced concerns that state environmental agencies had not properly examined problems.
The EPA probe in Pavillion began in 2008 with the aim of determining whether the town’s water was safe to drink. The area was first drilled in 1960 and had been the site of extensive natural gas developmentsince the 1990’s. Starting at about the same time, residents had complained of physical ailments and said their drinking water was black and tasted of chemicals.
The EPA conducted four rounds of sampling, first testing the water from more than 40 homes and later drilling two deep wells to test water from layers of earth that chemicals from farming and old oil and gas waste pits were unlikely to reach.
The sampling revealed oil, methane, arsenic, and metals including copper and vanadium – as well as other compounds --in shallow water wells. It also detected a trace of an obscure compound linked to materials used in fracking, called 2-butoxyethanol phosphate (2-BEp).
The deep-well tests showed benzene, at 50 times the level that is considered safe for people, as well as phenols -- another dangerous human carcinogen -- acetone, toluene, naphthalene and traces of diesel fuel, which seemed to show that man-made pollutants had found their way deep into the cracks of the earth. In all, EPA detected 13 different compounds in the deep aquifer that it said were often used with hydraulic fracturing processes, including 2-Butoxyethanol, a close relation to the 2-BEp found near the surface. 
The agency issued a draft report in 2011 stating that while some of the pollution in the shallow water wells was likely the result of seepage from old waste pits nearby, the array of chemicals found in the deep test wells was “the result of direct mixing of hydraulic fracturing fluids with ground water in the Pavillion gas field.”