Review of publicly available Australian information The chemicals reported through the survey were compared with publicly available information on the websites of the following: Queensland Government Department of Environment and Heritage Protection (DEHP 2014b) identified 55 chemicals – Australian Petroleum Production and Exploration Association (APPEA 2012) – identified 55 chemicals National Toxics Network (Lloyd-Smith and Senjen 2011) identified 23 chemicals – various companies involved in the coal seam gas sector in Australia identified – 52 chemicals. A further 10 chemicals not reported in the survey were identified through this review. Additional information provided by industry Additional information on the use of 23 of the 113 chemicals was provided by companies in May and June 2015 to better inform the assessment of the environmental risks. This included: volumes and concentrations transported handling procedures including packaging, transport, distribution and quantities and concentrations stored and used, and concentrations of chemicals in fracturing fluids drilling and hydraulic fracturing operations, and the locations of chemical stores and operational sites. Possible limitation of the methodology Completion of the survey was voluntary and it is possible that not all companies involved in coal seam gas activities in Australia responded or responded in full. However, chemicals reported through the survey were compared with publicly available Australian sources ensuring a comprehensive list of chemicals to be considered by the Assessment. Further, survey responses were received from the hydraulic fracturing service providers that conducted the majority, if not all, of the hydraulic fracturing activities in Australia. Also, the coal seam gas site operators that provided information are considered to be the companies involved in coal seam gas extraction and production in Australia during the survey period 2010 to 2012.
Review of publicly available Australian information The chemicals reported through the survey were compared with publicly available information on the websites of the following: Queensland Government Department of Environment and Heritage Protection (DEHP 2014b) – identified 55 chemicals Australian Petroleum Production and Exploration Association (APPEA 2012) – identified 55 chemicals National Toxics Network (Lloyd-Smith and Senjen 2011) – identified 23 chemicals various companies involved in the coal seam gas sector in Australia – identified 52 chemicals. A further 10 chemicals not reported in the survey were identified through this review. Additional information provided by industry Additional information on the use of 23 of the 113 chemicals was provided by companies in May and June 2015 to better inform the assessment of the environmental risks. This included: volumes and concentrations transported handling procedures including packaging, transport, distribution and quantities and concentrations stored and used, and concentrations of chemicals in fracturing fluids drilling and hydraulic fracturing operations, and the locations of chemical stores and operational sites. Possible limitation of the methodology Completion of the survey was voluntary and it is possible that not all companies involved in coal seam gas activities in Australia responded or responded in full. However, chemicals reported through the survey were compared with publicly available Australian sources ensuring a comprehensive list of chemicals to be considered by the Assessment. Further, survey responses were received from the hydraulic fracturing service providers that conducted the majority, if not all, of the hydraulic fracturing activities in Australia. Also, the coal seam gas site operators that provided information are considered to be the companies involved in coal seam gas extraction and production in Australia during the survey period 2010 to 2012.
technical-report-number-07-identification-chemicals-associated-csg.docx