The Trump administration said Friday it will look at revving up water deliveries to farmers from California’s Central Valley Project, the largest federal water project in the United States, in what environmental groups called a threat to protections for struggling native salmon and other endangered species. The U.S. Bureau of Reclamation formally served notice it would begin looking at changing the operation of the massive California water project to maximize water deliveries. Spokeswoman Erin Curtis called it the first step in what would likely be an 18-month analysis.