California’s water system is facing a series of challenges affecting water availability, reliability, and delivery. Reevaluating how groundwater is managed is necessary if it is to achieve its full potential as a reliable source of water. In this report, we present the Legislature with a series of actions that would be phased in over a period of time to address current and emerging groundwater management issues, including bringing science and law together to accurately reflect the physical interconnection of surface water and groundwater.