A complete list additives used in the hydraulic fracturing process are available on the Pennsylvania Department of Environmental Protection’s website. Here’s a link to that page. DEP also has a great overview of the hydraulic fracturing process, that information is available here.
Additionally, Pennsylvania regulations require natural gas companies to disclose on a well-by-well basis the additives used in the hydraulic fracturing process by way of “completion reports” and through www.FracFocus.org. You can also view a complete list of additives used in the hydraulic fracturing process by visiting this section of the FracFocus disclosure database, a section of which is pasted below:
