Based on available data and information relating to coal mining and exploration and appraisal for coal seam gas (CSG) in the Clarence-Moreton bioregion, the Assessment team determined that (as of mid-2015) there is one existing baseline coal mine (Jeebropilly Mine, west of Ipswich) and one CSG development that could potentially progress to future commercial production.
This CSG development is located in the Richmond river basin near Casino, NSW. The focus on this area is due to the combination of highly gas-saturated coal seams that also have a relatively high permeability. These are located along the western side of the Casino Trough at depths as shallow as 250 m. In December 2015 Metgasco Ltd (Metgasco) decided to discontinue their proposed development of the West Casino Gas Project. However, as per the coal resource development pathway (CRDP) methodology (Section 220.127.116.11), once the CRDP is determined, it is not changed for bioregional assessment (BA) purposes. This means that the West Casino Gas Project continues to form the basis for the groundwater modelling as an additional coal resource development (ACRD).
The three-dimensional geological model and conceptual assessment of hydrogeological pathways in the Clarence-Moreton bioregion suggest that there is no hydraulic connection between the Bremer river basin (where the Jeebropilly Mine is located) and the Richmond river basin. This lack of hydraulic connection led the Assessment team to focus only on modelling potential impacts for the West Casino Gas Project, and not include the Jeebropilly Mine in the groundwater model development.
Product Finalisation date
- 2.3.1 Methods
- 2.3.2 Summary of key system components, processes and interactions
- 2.3.3 Ecosystems
- 2.3.4 Baseline and coal resource development pathway
- 2.3.5 Conceptual modelling of causal pathways
- Contributors to the Technical Programme
- About this technical product