RECHARGE (HYDROLOGIC)

The introduction of surface or ground water to groundwater storage such as an aquifer. Recharge or replenishment of groundwater supplies consists of three (3) types: (1) Natural Recharge which consists of precipitation or other natural surface flows making their way into groundwater supplies; (2) Artificial or Induced Recharge which includes actions by man specifically designed to increase supplies in a groundwater reservoirs through various methods such as water spreading (flooding), ditches, and pumping techniques; and (3) Incidental Recharge which consists of actions, such as irrigation and water diversion, which add to groundwater supplies but are intended for other purposes. Recharge may also refer to the amount of water so added.