This bioregional assessment helps us understand how coal seam gas and coal mining development could affect water resources and water-dependent assets in the Gloucester subregion. It identifies where potential impacts could occur, as well as the areas that are unlikely to be affected.
At a glance
Additional coal resource development is predicted to cause minor hydrological change in the Gloucester subregion. No impacts on ecological assets are predicted in the south, given the limited additional coal resource development. In the north, potential impacts on ecological assets are expected to be minor and localised because predicted hydrological changes are small.
About the subregion
The Gloucester subregion is in New South Wales, north of the Hunter Valley. It is part of the Northern Sydney Basin bioregion. The largest towns in the subregion are Gloucester and Stroud. The main rivers are the north flowing Avon River and the south flowing Mammy Johnsons River. Most of the subregion is cleared of native vegetation and used for agriculture. Very little of the subregion lies within conservation reserves, but there are nationally and internationally significant wetlands and areas of ecological significance such as the Barrington Tops World Heritage area nearby.
- Area: 348 square kilometres
- Population: about 5000
- Climate: subtropical
- Annual rainfall: 1100 millimetres.
- Bioregional Assessment Program
- Lake Eyre Basin bioregion
- Northern Inland Catchments bioregion
- Clarence-Moreton bioregion
- Northern Sydney Basin bioregion
- Sydney Basin bioregion
- Gippsland Basin bioregion
- Bioregional assessment methodology
- Compiling water-dependent assets
- Assigning receptors to water-dependent assets
- Developing a coal resource development pathway
- Developing the conceptual model of causal pathways
- Surface water modelling
- Groundwater modelling
- Propagating uncertainty through models
- Systematic analysis of water-related hazards associated with coal resource development
- Assessment components
- Component 1: Contextual information
- Component 2: Model-data analysis
- Components 3 and 4: Impact and risk analysis
- Component 5: Outcome synthesis
- Geological and Bioregional Assessment Program
- Metadata and datasets