This report presents the sampling results from the groundwater monitoring program in the Otway region. The work undertaken for this study has been documented as follows: Chapter 2 Literature review Chapter 3 Bore selection Chapter 4 Sampling method Chapter 5 Quality assurance procedures and results Chapter 6 Groundwater sampling summary of results by analyte – Chapter 7 Groundwater sampling aquifer characterisation – Chapter 8 Conclusions and implications for conceptual model. Literature review of hydrocarbon occurrence in groundwater A literature review has been undertaken to determine whether any previous studies have detected occurrences of methane, BTEX or hydrocarbons in the groundwater resources of the Otway Basin and how these results have been interpreted in the context of the conceptual model of the basin. The literature review provided input to the selection of sampling bores and analytes and also provides the context for interpretation of results. This chapter begins with a summary of the hydrogeology of the Otway region, including the main aquifers and structural features (Section 2.1). Section 2.2 reviews the literature on hydrocarbon occurrence and movement in the Otway region. Potential areas for onshore natural gas prospectivity are discussed in Section 2.3 and the implications of the literature review for the selection of groundwater chemistry parameters for this study is discussed in Section 2.4. The approach to the literature review included the following components: Review literature that identifies the occurrence of methane, BTEX or other hydrocarbons in the groundwater resources of the Otway Basin, where coal and oil and gas are potentially present including: DSE (2010), Geological Society of Victoria (1995), GHD (2009), Hawkins and Dellenbach (1971), Hyder Consulting (2009), Laing (1989), Leeder Consulting (2009), Woollands and Wong (2001). et. al.
This report presents the sampling results from the groundwater monitoring program in the Otway region. The work undertaken for this study has been documented as follows: Chapter 2 Literature review Chapter 3 Bore selection Chapter 4 Sampling method Chapter 5 Quality assurance procedures and results Chapter 6 Groundwater sampling – summary of results by analyte Chapter 7 Groundwater sampling – aquifer characterisation Chapter 8 Conclusions and implications for conceptual model. Literature review of hydrocarbon occurrence in groundwater A literature review has been undertaken to determine whether any previous studies have detected occurrences of methane, BTEX or hydrocarbons in the groundwater resources of the Otway Basin and how these results have been interpreted in the context of the conceptual model of the basin. The literature review provided input to the selection of sampling bores and analytes and also provides the context for interpretation of results. This chapter begins with a summary of the hydrogeology of the Otway region, including the main aquifers and structural features (Section 2.1). Section 2.2 reviews the literature on hydrocarbon occurrence and movement in the Otway region. Potential areas for onshore natural gas prospectivity are discussed in Section 2.3 and the implications of the literature review for the selection of groundwater chemistry parameters for this study is discussed in Section 2.4. The approach to the literature review included the following components: Review literature that identifies the occurrence of methane, BTEX or other hydrocarbons in the groundwater resources of the Otway Basin, where coal and oil and gas are potentially present including: DSE (2010), Geological Society of Victoria (1995), GHD (2009), Hawkins and Dellenbach (1971), Hyder Consulting (2009), Laing et. al. (1989), Leeder Consulting (2009), Woollands and Wong (2001).
O4-Otway-groundwater-sampling-report-June-2015.docx