The Muncie Sanitary District/City of Muncie, Delaware County, Town of Yorktown & Ivy Tech of Muncie work together as co-permitted entities under the Municipal Storm Separate Storm Sewer System (MS4) General Permit issued by the Indiana Department of Environmental Management (IDEM). The Stormwater Management Department represents all entities in its work to ensure compliance with both the Indiana Department of Environmental Managment’s (IDEM) MS4 General Permit and IDEM’s Construction General Permit.