Artificial recharge involves adding water to underground aquifers to replenish water supplies. The main goals are to address water shortages, prevent land subsidence, and improve water quality. Potential issues include clogging of wells and contamination of recharge water. Different sources of water can be used, such as treated wastewater or stormwater. Building and maintaining recharge systems require careful planning and monitoring. Permits are needed for these operations to ensure environmental protection.