The mission of the Sanitary District is to collect, transmit, store, and treat sewage and storm water from the City of Hammond and the Town of Munster, customer municipalities and industrial users and to discharge acceptable effluent into local watercourses, and to dispose of residual solids, all in a cost-effective, safe, and environmentally proper manner.

The Sanitary District of Hammond is a separate governmental unit with bonding powers and its own governing body of five Sanitary Commissioners – four appointed by the Mayor of Hammond and one by the Town Council of Munster.