Which of the following affects the quantity of water that is available during the fracking process?

1. the size and depth of the shale formation

2. the pressure applied during hydraulic fracturing
3. the porosity and permeability of the rock formation
4. the amount of water used during the fracking operation
5. the availability of water sources in the region
6. local regulations and restrictions on water usage
7. the efficiency of water recycling and reuse techniques.