Looks like the humans win this round but just barely and will face further challenges from environmentalists and fishermen (because they want to be the ones to kill the fish) since the judge determined that the pumps are a hazard to the salmon and steelhead:

U.S. District Judge Oliver Wanger denied the groups’ request to release more water from a federal reservoir to help young endangered winter-run Chinook salmon reach the ocean. That could have left hundreds of acres of almonds, walnuts and tomatoes without irrigation supplies next month, at the height of California’s drought.

He has scheduled a court date for Wednesday to hear proposals to solve this problem.
BTW, I’m all for them coming up with a solution in which the salmon and the farmers (and the rest of the population who rely on the water) can peacefully coexist. But I’m always going to side with humans in a battle for survival. I’ll admit it, I’m biased. And besides I’m partial to California almonds and walnuts. I wouldn’t want to see the price shoot up because of scarcity.