Mariah Blake – Mother Jones: “On the morning of June 28, a fire broke out at a Halliburton fracking site in Monroe County, Ohio. As flames engulfed the area, trucks began exploding and thousands of gallons of toxic chemicals spilled into a tributary of the Ohio River, which supplies drinking water for millions of residents. More than 70,000 fish died. Nevertheless, it took five days for the Environmental Protection Agency and its Ohio counterpart to get a full list of the chemicals polluting the waterway. “We knew there was something toxic in the water,” says an environmental official who was on the scene. “But we had no way of assessing whether it was a threat to human health or how best to protect the public.” This episode highlights a glaring gap in fracking safety standards. In Ohio, as in most other states, fracking companies are allowed to withhold some information about the chemical stew they pump into the ground to break up rocks and release trapped natural gas. The oil and gas industry and its allies at the American Legislative exchange Council (ALEC), a pro-business outfit that has played a major role in shaping fracking regulation, argue that the formulas are trade secrets that merit protection. But environmental groups say the lack of transparency makes it difficult to track fracking-related drinking water contamination and can hobble the government response to emergencies, such as the Halliburton spill in Ohio.”