Spurred by drought and a major policy shift, groundwater management has assumed an unprecedented mantle of importance in California. Local agencies in the hardest-hit areas of groundwater depletion are drawing plans to halt overdraft and bring stressed aquifers to the road of recovery. Along the way, an army of experts has been enlisted to help characterize the extent of the problem and how the Sustainable Groundwater Management Act of 2014 is implemented in a manner that reflects its original intent.