Public Policy Institute of California (PPIC) Fact Sheet, August 2021, Groundwater recharge is vital in California, replenishing aquifers through both natural and intentional methods. Active recharge prevents saltwater intrusion, supports wetlands, and stores water for droughts. Techniques include recharge basins, unlined canals, and in-lieu recharge. Groundwater banks track and store water with potential for expansion. Read the fact sheet here.