1. It is unlawful for a responsible party to allow or cause an illicit discharge from any property it controls, possesses, or owns.
2. It is unlawful for a responsible party subject to an IDNR-issued industrial discharge permit or any other Federal, State or City permit, statute, ordinance or rule to violate or fail to comply with any obligation imposed by such permit, statute, ordinance, or rule if any such obligation is greater than any obligation imposed by this chapter.
3. Sediment pollution originating from excessive erosion rates on a construction site not otherwise subject to the City’s Erosion and Sediment Control ordinance (Chapter 157) or sediment pollution entering a municipal storm sewer that causes a water quality violation as determined by the DNR shall be deemed an illicit discharge in violation of this chapter.
4. The following discharges are exempt from the requirements of this chapter and it is not unlawful to discharge non-storm water from firefighting activities, fire hydrant flushing, potable water sources, waterline flushing, uncontaminated groundwater, foundation or footing drains, springs, riparian habitats, wetlands, irrigation systems, air conditioning condensate, exterior building wash when no detergents or other surfactants are used, and pavement wash where spills or leaks of toxic or hazardous materials have not occurred and when no detergents or other surfactants are used.