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About the subregion This synthesis presents key findings from the bioregional assessment of the Namoi subregion, part of the Northern Inland Catchments bioregion. Located in the Murray–Darling Basin in central NSW, the subregion lies in the Namoi river ba ...

Bioregional assessments are independent scientific assessments of the potential cumulative impacts of coal seam gas (CSG) and coal mining developments on water resources and water-dependent assets such as bores or potential habitats of species. These regi ...

The Namoi subregion, within the Northern Inland Catchments bioregion, covers approximately 29,300 km 2 in the Murray–Darling Basin in NSW (Figure 2). The subregion is home to about 27,000 people, with the main centres of Gunnedah and Narrabri located alon ...

The assessment identified potential hazards (Dataset 4) associated with coal resource development that could result in hydrological changes, such as aquifer depressurisation due to groundwater extraction. A hazard is a chain of events that begins with a c ...

Key finding 2 The zone of potential hydrological change (Figure 1 and Box 4) covers an area of 7014 km 2, including 5521 km of streams. This represents about 20% of the area in the entire Namoi assessment extent. Outside this zone, potential changes to wa ...

model nodes along the stream network, with only two nodes along Bohena Creek. A large proportion (94%) ...

(node 35) has a large number of cease-to-pump days under the baseline due to its larger threshold (≤50 ... ML/day). Two locations on Coxs Creek (hydrological model nodes 28 and 29) also have larger cease-to-pump ...

Findings from bioregional assessments can help governments, industry and the community provide better-informed regulatory, water management and planning decisions. Assessment results flag where future efforts of regulators and proponents can be directed, ...

from fault inclusion. Hydrological modelling A higher density of surface water model nodes and gauging ...

The information presented in this product for the Namoi subregion is based on the analysis and interpretation of existing data and knowledge, enhanced by new scientific studies of the geology, groundwater, surface water and ecology. All technical products ...