Most of the water that is transferred to various locations in California ends in is used for drinking

Califonias interconnected water system serves over 30000000 people. and irrigates over 5,680,000 acres (2,300,000 ha) of farmland.[1] As the world's largest, most productive, and most controversial water system,[2][page needed] it manages over 40 million acre feet (49 km3) of water per year.[3]