Despite a report that links practice to contaminated drinking water, list of more than 1,076 chemicals used during fracking process remains unknown to public
The fracking industry must be compelled to provide far more detailed information to regulators if the public is to be accurately informed of any risks to the environment, advocacy groups say.
A report by the Environmental Protection Agency (EPA) last month found that hydraulic fracturing for oil and gas can lead, and has led, to the contamination of drinking water. It was the first time the federal government had admitted such a link.