A new report was published this month that looks at how states are dealing with dangerous waste produced during shale gas development. Not well, according to the report. The Environmental Protection Agency regulates the disposal of toxic or hazardous materials. Such waste includes things that may contain heavy metals, chemicals, dangerous pathogens, radiation, or other toxins. Horizontal drilling produces both liquid and solid waste streams which can contain heavy metals, dangerous chemicals, salts and radiation. But you will never hear it referred to as toxic or hazardous by anyone, officially. Read more.