(a) No person shall discharge or cause to be discharged any storm water, surface water, ground water, roof runoff, subsurface drainage, cooling water or unpolluted industrial or commercial process waters to the sanitary sewer system serving this City.
(b) The owner of each house, building or premises used for human occupancy, employment, recreation or any other purpose, situate within the City or utilizing any portion of the sanitary sewer system, is hereby required, at his own expense, to eliminate from such sanitary sewer system all storm water, surface water, ground water, roof runoff, subsurface drainage, cooling water or unpolluted industrial or commercial process waters entering the sanitary sewer system from his property, within one hundred twenty days after date of notice by certified mail from the City to do so.