What is an Illicit Discharge?
Per 40 CFR § 122.26, an illicit discharge is "any discharge to a municipal separate storm sewer that is not composed entirely of storm water". In other words, anything that enters a storm drain that is not stormwater is considered an illicit discharge.
Illicit Discharge Examples
- Wastewater
- Motor Oil
- Household chemicals
If you observe an illicit discharge entering a state-owned stormwater facility, please use the information below to report the discharge to ODOT.
Report an Illicit Discharge