American Water Operations and Maintenance LLC, Camden, New Jersey, has been awarded a maximum $15,082,236 modification (P00185) to a 50-year contract (SP0600-09-C-8257) with no option periods for the ownership, operation and maintenance of water and wastewater utility systems at Fort Belvoir, Virginia. This is a fixed-price with economic-price adjustment contract. Location of performance is Virginia, with a March 5, 2060, performance completion date. Using military service is Army. Type of appropriation is fiscal 2023 through 2060 Army operations and maintenance funds. The contracting activity is the Defense Logistics Agency Energy, Fort Belvoir, Virginia.