*3.1. Non-Dischargeable Volume of Water (Difference between Pumped and Discharge Water)*

In this section, we analyze for all scenarios (1) the difference between pumped and discharged water and (2) the water exchanges between the underground reservoir and the surrounding medium. In principle, a surplus of pumped water that cannot be returned to the underground reservoir should be discharged into surface water systems, which may potentially alter the water quality or require additional water treatments.
