Illicit discharges are releases of pollutants or non-stormwater to the storm drain system. Source control and the Public Works staff respond to calls from the public or incidents discovered in the field. If the discharging party is present, they are educated about the pollution contribution and are asked to clean up the material they discharged illegally. Warning notices can be given. If there is no party on site, the Public Works crew will take appropriate action to contain the discharge.