The City of Mebane’s water comes from the Graham-Mebane Water Treatment Plant that is co-owned with the City of Graham. The plant began operation in 1976 and is located on Graham-Mebane Lake in the northeast part of Alamance County. The lake itself is 718 acres, providing 2.8 billion gallons of storage. The water treatment plant was upgraded and expanded in 2003 and has a treatment capacity of 12 million gallons per day and a treated water storage capacity of 6 million gallons. The Graham-Mebane Water Treatment Plant distributes approximately 3.8 million gallons of water per day.