This Standard Guide presents a methodology for obtaining representative groundwater samples before, during and after hydraulic fracturing to identify the baseline water quality of residential water supply wells and any changes that may be identified subsequent to hydraulic fracturing in the area. This Standard Guide addresses analytical procedures that can identify various chemical species present including metals, dissolved gasses (such as methane), hydrocarbons (and other organic compounds) as well as overall water quality. This guide provides information on typical residential supply well systems and direction on developing and implementing a sampling program, including determining sampling locations, suggested purging techniques, analytical categories and laboratory certifications, and data management and integrity. It also includes guidance on property damage prevention and personal safety. The information included pertains to baseline sampling before beginning surface or subsurface work that presents potential risks to local aquifers, periodic sampling during and after such work, and/or ongoing monitoring relating to known or potential groundwater constituents in the area. This Standard Guide does not address policy issues related to frequency of sampling or sampling distances from the well head.
Keywordswater quality, fracking, hydraulic fracturing
The title and scope are in draft form and are under development within this ASTM Committee.Back to Top