(A)   No person(s) shall discharge or cause to be discharged any unpolluted water such as storm water, ground water, roof runoff, surface drainage or noncontact cooling water to any sanitary sewer.
   (B)   Storm water and all other unpolluted drainage shall be discharged to those sewers as are specifically designed as storm sewers or to a natural outlet approved by the city and other regulatory agencies. Industrial cooling water of unpolluted process waters may be discharged to a storm sewer or natural outlet on approval of the city and upon approval and the issuance of a discharge permit by the MPCA.
(Ord. 408, passed 12-26-1989)  Penalty, see § 53.999