No sewage, including industrial wastes, shall contain any substance which is deemed deleterious by the city to the operation of the sewerage system or to any plant or facilities used in the treatment or disposal of the sewage. If a user of the sewerage system discharges excessive loads or any deleterious substances therein which are likely to retard or injuriously affect sewerage operations, he or she shall discontinue the practice and the practice is hereby declared to be a violation of this chapter. Each day of the violation continuing after having been notified in writing by the city to discontinue the practice shall be deemed a separate violation.
(Prior Code, § 3.20) Penalty, see § 10.99