How do farmers in the region obtain water for their fields?. Geography

Rain is a lucky break – farmers have depended on two interconnected sources of water. Use surface flows from

the San Joaquin and Sacramento Rivers, divvied up according to water rights that date back to the 19th century

and delivered to fields via a complex network of pipes and canals. Also use groundwater – in the driest corners

aquifers are so overdrawn the field have sunk by more than 30 feet.