This report, Uncertainty analysis of CSG-induced GAB flux and water balance changes in the Narrabri Gas Project area, quantifies potential groundwater flux and water balance changes in the Great Artesian Basin (GAB) aquifer (Pilliga Sandstone) under CSG development scenarios in the Gunnedah Basin, NSW. It provides an independent probabilistic estimation of potential regional scale coal seam gas (CSG)-induced impacts on the groundwater resource in this GAB aquifer arising from generic depressurisation of Gunnedah Basin coal seams.

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