No person shall discharge or cause to be discharged, directly or indirectly, any of the following described substances to any public sewers:
(A) Flammable or explosive material. Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;
(B) Solid or viscous substances. Solid or viscous substances, either whole or ground, in quantities or of the size capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewage works, such as, but not limited to, ashes, cinders, disposable diapers, glass grinding or polishing wastes, stone cutting or polishing wastes, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails, sanitary napkins, paper dishes, cups, milk containers, other paper products, beer or distillery slops, residues, chemical or point residues, cannery wastes and bulk solids;
(C) Excessive BOD, solids or flow.
(1) Any waters or wastes having:
(a) A five day biochemical oxygen demand greater than 300 parts per million by weight;
(b) Containing more than 350 parts per million by weight of suspended solids; or
(c) Having an average daily flow greater than 2% of the average sewage flow of the city, shall be subject to the review of the Superintendent.
(2) Where necessary in the opinion of the Superintendent, the owner shall provide, at the owner’s expense, the preliminary treatment as may be necessary to:
(a) Reduce the biochemical oxygen demand to 300 parts per million by weight;
(b) Reduce the suspended solids to 350 parts per million by weight; or
(c) Control the quantities and rates of discharge of waters or wastes.
(3) Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the Superintendent and no construction of the facilities shall be commenced until the approvals are obtained in writing;
(D) Noxious or malodorous gases. Any noxious or malodorous liquid, gas or other substance which either singly or by interaction with other wastes is sufficient to create a public nuisance or hazard to life or is sufficient to prevent entry into sewers for their maintenance and repair; and
(E) Excessive ammonia. Any waters or wastes having an ammonia concentration of greater than 50 mg/l shall be subject to the review of the Superintendent. Where necessary in the opinion of the Superintendent, the owner shall provide, at the owner’s expense, the preliminary treatment as may be necessary to reduce the ammonia concentrations to no greater than 25 mg/l. Plans, specifications and any other pertinent information relating to proposed preliminary treatment facilities shall be submitted for the approval of the Superintendent and no construction of the facilities shall be commenced until the approvals are obtained in writing.
(1999 Code, § 97.03) (Ord. 2289, passed 4-12-2005) Penalty, see § 52.999