The Illicit Discharge Detection and Elimination (IDDE) Program is a 3-part program implemented by the Office of Sustainability and Environmental Resources (OSER) as a requirement by the Maryland Department of the Environment (MDE) to manage illicit discharges and stormwater runoff.
Stormwater runoff is a result of a rain or snow event flowing over impervious surfaces like streets, sidewalks, and parking lots. The runoff can convey pollutants associated with every day activities into the storm drain system leading directly to our local waterways.
Illicit discharges involve materials like used oil, trash juice from dumpsters, chemicals, or other hazardous materials being discharged, intentionally or unintentionally, into the stormwater sewer system.