FILE - Water flows through an irrigation canal to crops near Lemoore, Calif., Feb. 25, 2016. A proposal in the California state Senate aims to keep more water in California's rivers and streams to benefit endangered species of fish. Under the plan the state would spend up to $1.5 billion to buy up "senior water rights" that farmers use to take water from the state's rivers and streams to grow their crops. (AP Photo/Rich Pedroncelli, File)