can be updated, for example, incorporating new coal resource developments in the model. Existing lists such as the water-dependent asset register will remain relevant for future assessments. If new coal resource developments emerge in the future, the data, information, analytical results and models from this assessment provide a comprehensive basis for bioregion-scale re-assessment of potential impacts under an updated . It may also be applicable for other types of resource development. Guidance about how to apply the Programme’s methodology is documented in detailed scientific submethodologies, listed in the references.
Extending this bioregional assessment should focus on an improved understanding of the role of faults as conduits of groundwater flow. Drilling of groundwater observation in deep could also help to further reduce the on the connection between shallow and deep geological formations. Confidence may be improved in future assessments by undertaking the following activities.
Groundwater monitoring bores
There is a lack of deep monitoring (greater than 100 m depth below ground surface) where groundwater levels and quality are observed in the sedimentary bedrock within the Richmond river basin. As a result, there are limited baseline data to assess hydrological processes such as aquifer connectivity or the role of faults as potential barriers or conduits to groundwater flow.
Seismic and stratigraphic data are scarce in some areas, such as underneath the Lamington Volcanics in the Richmond river basin. Additional data would reduce the in the geological model and identify the presence and continuity of large-scale faults, which were not accounted for in the assessment. The uncertainty from other sources (e.g. the understanding, conceptualisation and hydraulic parameterisation of the deeper geological layers) reduces confidence in local-scale changes. Additional field observations that may mitigate this problem include water level and environmental tracer measurements from future multi-level observation , and core analytical measurements, such as and of .
In comparing results under two different futures in this assessment, factors such as climate change or land use were held constant. Future assessment iterations could look to include these and other to more fully predict on a landscape scale.
See sections titled ‘Gaps’ in the following technical products: Description of water-dependent asset register, product 1.3 Current water accounts and water quality, product 1.5 Conceptual modelling, product 2.3 Surface water numerical modelling, product 2.6.1 Groundwater numerical modelling, product 2.6.2
FIND MORE INFORMATION
See sections titled ‘Gaps’ in the following technical products:
Description of water-dependent asset register, product 1.3
Current water accounts and water quality, product 1.5
Conceptual modelling, product 2.3
Surface water numerical modelling, product 2.6.1
Groundwater numerical modelling, product 2.6.2
Product Finalisation date
- Explore this assessment
- About the bioregion
- How does the bioregion's geology and hydrogeology influence water movement?
- How could coal resource development result in hydrological changes?
- What are the potential hydrological changes?
- What are the potential impacts of the hydrological changes?
- How to use this assessment
- Building on this assessment
- References and further reading
- Contributors to the Technical Programme