Lebanon Stormwater Department
Illicit Discharge
What is IDDE?
Illicit Discharge Detection and Elimination (IDDE) pertains to illicit, or not lawful, connections to storm sewers and the illegal discharge and/or dumping of pollutants into storm sewers. The Lebanon MS4 Program takes IDDE very seriously because these practices can lead to reductions in the quality of water in our local waterways. Storm sewers do not flow to a treatment plant like the sanitary sewers. Storm water runoff does not get treated prior to release into our waterways.
Illicit Connection
Any improper physical connection to the storm sewer system would be an illicit connection. Examples include: a floor drain or household greywater drain (i.e. laundry or sink drain) that is connected to storm drain; a septic tank discharge pipe that is connected to a storm drain or drains directly to a waterway or an improper connection between a storm sewer and sanitary sewer.
Illegal Discharge
Any direct or indirect non-storm water discharge to the MS4 system including ditches, culverts and storm sewers would be an illegal discharge.
Pollutants are anything that causes or contributes to pollution or thermal pollution, including but not limited to: heat, paints, vanishes and solvents; oil and other automotive fluids; non-hazardous liquid and solid wastes and yard wastes; refuse, rubbish, garbage, litter or other discarded or abandoned objects, and accumulations, so that same may cause or contribute to pollution; floatables; pesticides, herbicides and fertilizers; hazardous substances and wastes; sewage, fecal coliform and pathogens; dissolved and particulate metals; animal wastes; wastes and residues that result from constructing a building or structure; and noxious or offensive matter of any kind.
For more information regarding IDDE please contact the MS4 Operator at 765-482-8843.

