The expansion upgrade consisted of constructing a new Headworks, a 20′ deep Influent Pump Station, an Oxidation Ditch that holds 2.5 million gallons in each side, a 70′ diameter Clarifier, RAS Pump Station, Tertiary Filter, Ultra Violet Disinfection Center, Post Aeration Basin, and approximately 6,000 feet of 24″ outfall line. The expansion enabled the City of Oxford to consume a daily average of 8 MGD.