The District extracts water from the Upper Ventura River Groundwater Basin. The Upper Ventura River Groundwater Basin, though relatively shallow, is a crucial source of water for the region. As one of four groundwater basins that supply the Ventura River watershed and surrounding coastal watersheds, it plays an essential role in sustaining communities that are 100% dependent on local water sources. No imported water reaches this area—making groundwater indispensable. Beyond supporting households and agriculture, the basin also sustains the Ventura River’s natural ecosystems and serves as a critical buffer during dry periods. This basin supports both human and environmental needs—feeding the Ventura River, sustaining native habitats, and serving as a critical buffer during droughts and holds an approximate two-year water supply when full. We operate 4 wells near the Ventura River, two pumping plants, and three reservoir facilities.