When it comes to water scarcity, California offers researchers a perfect laboratory. The historic drought it endured over the past few years began impacting groundwater levels, leaving farms few options but to drill deeper and deeper for lower-quality water. Enter Helen Dahlke, Assistant Professor in Physical Hydrology at University of California, Davis. She headed up a study on how to tap into storm water and winter melt runoff in a way that would not run afoul of California’s strict water rights or environmental laws.