The exceptionally wet 2017 winter restored watersheds and groundwater basins in western states and provided wineries with optimism about their future water supplies, especially after five years fraught with extreme drought. But with a nearly dry 2018 winter in California, broken by a series of spring storms, concerns that drought is the new normal resurged. Because groundwater extraction, particularly in Central California, was excessively relied upon during the previous years’ drought, t...