1. Hannibal Wastewater Treatment 700 S Arch St, Hannibal, MO 63401 Coordinate: 39.69938,-91.3715 Phone: (573) 248-1511
2. City of Hannibal 320 Broadway, Hannibal, MO 63401 Coordinate: 39.70904,-91.35803 Phone: (573) 221-0111