For much of its history, California was the Wild West when it came to groundwater. Thirsty cities and farms could freely pump from underground aquifers with little to no oversight. If you could build a well you could take the water.
Recognizing the negative impacts of unchecked pumping, the state stepped in and, in 2014, passed the Sustainable Groundwater Management Act (SGMA). SGMA makes local agencies responsible for bringing priority groundwater basins into sustainability – meaning many water managers now need to find new ways to meet their water needs.