(a) General prohibition. Except as provided in section 90-205, and except pursuant to a valid NPDES permit, it shall be unlawful for any person to directly or indirectly deposit, discharge, spill, or dump into any of the public waters or municipal separate storm sewer system within the city, any substance other than that composed entirely of stormwater.
(b) Site of industrial activity. Except as provided in section 90-205, any direct or indirect discharge from a site of industrial activity to the separate storm sewer system owned by the city which does not comply with, or is not pursuant to, a valid NPDES permit is prohibited.
(c) Illicit connections. No person may maintain, use or establish any direct or indirect connection to the stormwater system that results in any discharge in violation of this article. This prohibition is retroactive and applies to connections made in the past, regardless of whether made under a permit, or other authorization, or whether permissible under laws or practices applicable or prevailing at the time the connection was made.