Managed aquifer recharge (MAR) is a process whereby water is intentionally added to an aquifer for storage and later recovery. This technique is used to replenish depleted groundwater reserves, enhance water quality, and mitigate the effects of overdraft or contamination. MAR can involve various methods such as injection wells, infiltration basins, or spreading grounds to introduce water into the subsurface. The goal is to restore or maintain groundwater levels and make the current level of exploitation more sustainable in the long term. In this thesis, numerical flow modeling of MAR was conducted using the finite-difference code MODFLOW. A recharge basin was hypothesized, which injects water out of the irrigation season, whereas a water well downstream extracts water for an irrigation seasion that lasts 155 days per year.