{"help": "https://data.gov.au/data/api/3/action/help_show?name=package_show", "success": true, "result": {"author_email": null, "contact_point": "bioregionalassessments@bom.gov.au", "creator_user_id": "2846d45e-3969-4419-a085-84f5716ede91", "duplicate_score": 1, "geospatial_topic": [], "id": "749874b7-18c7-4910-ab5f-6f0fbfda2a46", "isopen": false, "language": "eng", "license_id": "Creative Commons CC-BY 4.0", "license_title": "Creative Commons CC-BY 4.0", "maintainer": null, "maintainer_email": null, "metadata_created": "2021-12-23T01:11:20.367189", "metadata_modified": "2021-12-23T01:33:44.504967", "name": "9d8f0a33-ffcd-4976-be72-d81d0a5d3a6d", "notes": "\n## **Abstract** \nThe dataset was compiled by the Geological and Bioregional Assessment Program from source data referenced within the dataset and/or metadata. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement. Five key potential impact pathways were identified in GBA stage 2. These included hydraulic impacts, which involve the propagation of reductions in pressure (known as \u201cdrawdown\u201d) away from a groundwater bore field used to supply water to a shale gas production well. Reductions in pressure are also applied during hydraulic fracturing of shale gas production wells, in order to cause gas to flow. Drawdown can propagate either directly (e.g., when an aquifer or gas reservoir is in contact with another aquifer) or indirectly (e.g., via an intervening aquitard, or via a geological fault, which can act as a conduit). Analytical groundwater flow models were used to estimate potential hydraulic impacts (in terms of changes in pressures and flows) resulting from likely groundwater and shale gas extraction activities. Three workflows based on local scale impact models were successfully used to provide predictions of potential hydraulic impacts. For the simulation of drawdown impacts that propagated upward via an intervening aquitard, the effects of faults on aquitard vertical hydraulic conductivity were addressed. The assumptions required by each model were stated explicitly, and conservative parameter values were able to be chosen in most instances. Modelling results indicated that hydraulic impacts are likely to be negligible, as aquitard sequences are generally thick (i.e. hundreds of metres). Conversely, relatively larger drawdown impacts were predicted in areas where aquifers or aquitards were thin, and/or where fault zones were present.\n\n\n## **Attribution** \nGeological and Bioregional Assessment Program\n\n\n## **History** \nFor the Cooper GBA region, spatially distributed saturated thickness data were obtained from the \"Cooper Basin Source Rock Atlas 2016/01/01\" dataset. The locations of fault traces were obtained from the \"Great Artesian Basin major geological structural elements\" dataset.\r\n\r\nFor the Beetaloo GBA region, spatially distributed saturated thickness data were obtained from the \"GA Regional Three-Dimensional Geological Model for the Beetaloo Sub-basin\" dataset. The locations of fault traces were obtained from the following dataset:\r\n\r\nBetts, P., Armit, R., and Ailleres, L. (2015). Geophysical and structural interpretation of the greater McArthur Basin. Northern Territory Geological Survey, Digital Information Package DIP015, https://geoscience.nt.gov.au/gemis/ntgsjspui/handle/1/81754.", "num_resources": 1, "num_tags": 1, "organization": {"id": "69f37b4c-bdf0-4c85-bd56-82fa6d6b087a", "name": "bioregional-assessment-program", "title": "Bioregional Assessment Program", "type": "organization", "description": "The Australian Government's bioregional assessments programs are a collaboration between the Department of Agriculture, Water and the Environment, the Bureau of Meteorology, CSIRO and Geoscience Australia. There are two separate programs of bioregional assessments.\r\n\r\nThe Bioregional Assessment Program (2012 - 2017) seeks to better understand the potential impacts of coal seam gas and large coal mining developments on water resources and water-related assets. It is one of a number of actions undertaken by the Australian Government to strengthen the science underpinning decision making on coal seam gas and large coal mining developments.\r\n\r\nThe Geological and Bioregional Assessment Program (2017 - 2021) assessed the potential impacts of shale and tight gas development on water and the environment. The Program assessed three priority geological basins: the Cooper Basin in Queensland and South Australia, the Isa Superbasin in Queensland and the Beetaloo Sub-basin in the Northern Territory (referred to as GBA regions", "image_url": "2015-10-30-051742.096388Bioregional-assessments-logo-800.jpg", "created": "2015-10-30T05:17:42.164347", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://data.gov.au/data/dataset/", "href": "https://data.gov.au/data/dataset/9d8f0a33-ffcd-4976-be72-d81d0a5d3a6d", "title": "data.gov.au"}, "owner_org": "69f37b4c-bdf0-4c85-bd56-82fa6d6b087a", "private": false, "spatial": "{\"type\": \"Point\",\"coordinates\": [140.44924,-33.85253]}", "spatial_coverage": "POINT (30 10)", "state": "active", "temporal_coverage_from": "2021-12-20 00:00:00", "title": "Predictive modelling of potential groundwater impact pathways from shale gas development", "type": "dataset", "unpublished": false, "url": "https://dmp.bioregionalassessments.gov.aumetadata/9D8F0A33-FFCD-4976-BE72-D81D0A5D3A6D", "version": null, "extras": [{"key": "contact_info", "value": "false"}, {"key": "data_state", "value": "active"}, {"key": "field_of_research", "value": "[]"}, {"key": "jurisdiction", "value": "NONE"}, {"key": "update_freq", "value": "other"}], "resources": [{"Description": "BA Repo file attachment", "cache_last_updated": null, "cache_url": null, "created": "2021-12-23T01:33:44.516845", "datastore_active": false, "datastore_contains_all_records_of_source_file": false, "description": "Data File", "format": "ZIP", "hash": "", "id": "da848a42-226a-4781-ad11-7bd1fca15b70", "last_modified": "2021-12-23T00:00:00", "metadata_modified": "2021-12-23T01:33:44.509206", "mimetype": "application/zip", "mimetype_inner": null, "name": "9D8F0A33-FFCD-4976-BE72-D81D0A5D3A6D.zip", "package_id": "749874b7-18c7-4910-ab5f-6f0fbfda2a46", "position": 0, "resource_type": null, "size": 36604894, "state": "active", "url": "https://s3.ap-southeast-2.amazonaws.com/gba.dmp/datasets/9D8F0A33-FFCD-4976-BE72-D81D0A5D3A6D/9D8F0A33-FFCD-4976-BE72-D81D0A5D3A6D.zip", "url_type": null, "zip_extract": false}], "tags": [{"display_name": "GROUNDWATER Waterlevel", "id": "7e63195d-8648-4f9b-8f6a-136766d5a7af", "name": "GROUNDWATER Waterlevel", "state": "active", "vocabulary_id": null}], "groups": [], "relationships_as_subject": [], "relationships_as_object": []}}