The configuration and mechanical properties of a confined aquifer layer, including its compressibility and structural characteristics, directly determine its groundwater storage capacity.
The claim is specific and empirical, dealing with hydrogeology and the physical controls on confined aquifer storage capacity. Multiple papers (e.g., 3, 5, 6, 11) directly discuss how aquifer properties, structural configurations, gas exsolution, and mechanical deformation control and change specific storage and storage coefficients in confined aquifers. Therefore, the evidence clearly supports the claim, and no papers refute it.