(a) No person shall discharge or cause to be discharged any storm water, surface water, ground water, roof runoff, subsurface drainage, uncontaminated cooling water or unpolluted industrial process waters to any sanitary sewer.
(b) Storm water and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as storm sewers, or to a natural outlet approved by the City Engineer. Industrial cooling water or unpolluted process waters may be discharged, on approval of the Ohio Environmental Protection Agency (Ohio EPA) and the City Engineer, to a storm sewer or natural outlet.
(c) No person shall discharge or cause to be discharged any of the waters or wastes to any public sewers as described in Section 925.31.
(d) No person shall discharge or cause to be discharged the following described substances, materials, waters or wastes if it appears likely in the opinion of the City Engineer that such wastes can harm either the sewers, sewage treatment process or equipment, have an adverse effect on the receiving stream, or can otherwise endanger life, limb, public property, or constitute a nuisance, in forming his opinion as to the acceptability of these wastes, the City Engineer will give consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sewers, materials of construction of the sewers, nature of the sewage treatment process, capacity of the sewage treatment plant, degree of treatability of wastes in the sewage treatment plant, and other pertinent factors. The substances prohibited are:
(1) Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of 3/4 horsepower or greater shall be subject to the review and approval of the City Engineer.
(2) Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solution whether neutralized or not.
(3) Any waters or wastes containing a toxic or poisonous substance or of high chlorine demand in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving of storm waters or storm water overflows or the effluent of the sewage treatment plant.
(4) Water or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.
(e) If any waters or wastes are discharged, or are proposed to be discharged to the public sewers, which waters or wastes contain suspended solids, BOD and other soluble matter in excess of that of normal sewage as defined in Section 925.01, or contain the substances or possess the characteristics enumerated in subsection (d) hereof and which in the judgment of the City Engineer may have a deleterious effect upon the sewage works, processes, equipment or receiving waters or which otherwise create a hazard to life or constitute a public nuisance the City Engineer may:
(1) Reject the wastes,
(2) Require pretreatment to an acceptable condition for discharge to the public sewers,
(3) Require control over the quantities and rates of discharge, and/or
(4) Require payment to cover the added cost of handling and treatment of the wastes not covered by existing taxes or sewer charges under the provisions of subsection (j) hereof.
If the City Engineer permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the City Engineer, and subject to the requirements of all applicable codes, ordinances and laws.
(f) Grease, oil and sand interceptors shall be provided when, in the opinion of the City Engineer, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any inflammable wastes, sand or other harmful ingredients, except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the City Engineer, and shall be located as to be readily and easily accessible for cleaning and inspection.
(g) Where preliminary treatment of flow-equalizing facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense.
(h) When required by the City Engineer, the owner of any property serviced by a building sewer carrying industrial wastes shall install a suitable control manhole together with such necessary meters and other appurtenances in the building sewer to facilitate observation, sampling and measurement of the wastes. Such manhole, when required, shall be accessible and safely located, and shall be constructed in accordance with plans approved by the City Engineer. The manhole shall be installed by the owner at his expense, and shall be maintained by him so as to be safe and accessible at all times.
(i) All measurements, tests and analyses of the characteristics of waters and wastes to which reference is made in this chapter shall be determined in accordance with the latest edition of Standard Methods for the Examination of Water and Wastewater, published by the American Public Health Association, and shall be determined at the control manhole provided, or upon suitable samples taken at the control manhole. In the event that no special manhole has been required, the control manhole shall be considered to be the nearest downstream manhole in the public sewer to the point at which the building sewer is connected. Sampling shall be carried out by customarily accepted methods to reflect the effect of constituents upon the sewage works and to determine the existence of hazards to life, limb, and property. The particular analyses involved will determine whether a twenty-four hour composite of all outfalls of premises is appropriate or whether a grab sample or samples should be taken. Normally, but not always, BOD and suspended solids analyses are obtained from twenty-four hour composites of all outfalls whereas pH's are determined from periodic grab samples.
(j) No statement contained in this section shall be construed as preventing any special agreement or arrangement between City and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the City for treatment, subject to payment therefor, by the industrial concern.