What is an Illicit Discharge or Connection?

An illicit discharge is any discharge to the storm sewer system that is not composed entirely of rain water or groundwater. Examples include dumping of motor vehicle fluids, household hazardous wastes, grass clippings, leaf litter, industrial waste, restaurant wastes, or any other non-storm water waste into a storm water system.


An illicit connection is the discharge of pollutants or non-storm water materials into a storm sewer system via a pipe or other direct connection. Sources of illicit connections may include sanitary sewer taps, wash water for laundromats or car washes, and other similar sources.

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1. What is a Drain Assessment?
2. How are assessments determined?
3. Where is the drain located for which I am being assessed?
4. Do all property owners pay drain assessments?
5. What is a Drainage District?
6. I recently purchased my property. Why am I being billed for work done prior to my ownership?
7. What is a Petitioned Project?
8. How does a petition get started?
9. What is a Board of Determination?
10. What is the purpose of a Board of Determination?
11. Does the Board of Determination decide what work gets done?
12. Does the decision of the Board of Determination have to be unanimous?
13. What if I am unable to attend the Board of Determination meeting?
14. Can the decision of the Board of Determination be appealed?
15. Why do I need an Easement?
16. What are the Statutes and Regulations Effecting the Activities of the Drain Commissioner?
17. What is an Illicit Discharge or Connection?
18. How do I identify an Illicit Discharge or Connection?
19. How do I make a FOIA Request?