The District’s main water source comes from the central basin located by the San Gabriel River. The central basin groundwater is managed by the Water Replenishment District. Our District’s wells are located approximately 8 miles from our most westerly District boundary. A significant portion of the water delivered to our customers consist of ground water. In addition to the wells the District has an import water connection to Metropolitan Water District (MWD). Our MWD member agency is Central Basin Municipal Water District.