We have been part of research on the Condamine Alluvium, measuring water movement between aquifers and cutting out dozens of metres of rock for analysis.
The Condamine Interconnectivity Research Project (CIRP) was led by the Queensland Government’s Office of Groundwater Impact Assessment (OGIA). Its aim was to determine the connectivity between the CSG-filled Walloon Coal Measures and the overlying Condamine Alluvium. Results were independently reviewed.
We conducted the aquifer pump testing component of the research, drilling four groundwater monitoring bores on each of two privately-owned, intensively farmed properties – the first set at Daleglade in 2013 and the second set at Lone Pine in 2014.
A third monitoring project located at Plainview, about 30km west of Dalby, commenced in January 2019. Data is being collated.
“It is concluded that the level of hydraulic connectivity between the Condamine Alluvium and the Walloon Coal Measures is low”. – OGIA’s project report.
This was a direct evaluation of connectivity between the Condamine Alluvium aquifer and the Walloon Coal Measures. It demonstrated there would be very minimal potential for groundwater impact from CSG extraction at two sites in the Surat Basin.
The trials were undertaken with the full support of landholders and government, demonstrating coexistence between the CSG and agricultural industries.