Elgin, IL Environmental Rules: Stormwater Management (2026)

010(A) to discharge any materials, directly or indirectly, into the city's storm drainage system or watercourses other than stormwater itself. Subsection B exempts a specific, limited list of flows, including water line flushing, landscape irrigation, rising groundwater, air conditioning condensation, noncommercial vehicle washing, dechlorinated swimming pool water (under one part per million chlorine), and firefighting activity. 210 goes further for businesses: owners or operators of a commercial or industrial establishment must provide, at their own expense, structural and nonstructural best management practices (BMPs) to prevent accidental discharge of prohibited materials into the storm drain system, and any property responsible for an illicit discharge can be required to implement additional BMPs.

Where a facility holds an NPDES industrial stormwater permit, compliance with that permit's stormwater pollution prevention plan (SWPPP) satisfies this section. 250's good-housekeeping rules add specifics: irrigation runoff can't leave the property, parking lots susceptible to runoff must be swept at least monthly, lots with more than ten spaces and public parking facilities must be vacuum swept at least quarterly (except for one month following a half-inch rain), and household hazardous waste must go to the city's collection facility rather than the trash. 080 separately bars connecting any toilet, sink, septic, or industrial waste drain to the stormwater system. 020's general penalty.