change in groundwater storage Cuyama Valley Ca

Change in groundwater storage with rapidly declining water levels in a sole-source aquifer were important factors in undertaking and completing this study. To better understand the system, the Cuyama Valley has been split into three groups of subregions: (1) the Main Zone, (2) the Sierra Madre Foothills, nd (3) the Ventucopa Uplands. Although partially connected hydraulically, the groupdwater system in these subregions generally responds independently to different supply sources and demands.