(A) The following described substances, materials, waters or waste shall be limited in discharges to the municipal system to concentrations or quantities which will not harm either the sewers, wastewater treatment process or equipment; will not have an adverse effect on the receiving stream; or will not otherwise endanger lives, limb, public property or constitute a nuisance. The City Public Works Director and the City Building Official will give consideration to such factors as the quantity of subject waste in relation to flows and velocities in the sewers, materials of construction of the sewers, the wastewater treatment process employed, capacity of the wastewater treatment plant, treatability of the waste in the wastewater treatment plant and other pertinent factors.
(B) The limitations or restrictions on materials or characteristics of waste or wastewaters discharged to the sanitary sewer which shall not be violated without approval of the Public Works Director and the City Building Official are as follows:
(1) In accordance with environmental quality standards set forth in I.A.C. § 567, the admission into the public sewers of any waters or wastes having:
(a) A five-day biochemical oxygen demand greater than 300 milligrams per liter;
(b) Containing more than 350 milligrams per liter of total suspended solids;
(c) Containing any quantity of substances having the characteristics described in this section; or
(d) Having an average daily flow greater than 2% of the average daily sewer flow of the city.
(2) Wastewater having a temperature higher than 130°F;
(3) Wastewater containing more than 50 milligrams per liter of free, floating or emulsified biodegradable fat and grease;
(4) Any garbage that has not been properly shredded (see § 2.13 of this chapter). Garbage grinders may be connected to sanitary sewers from homes, hotels, institutions, restaurants, hospitals, catering establishments or similar places where garbage originates from the preparation of food in kitchens for the purpose of consumption on the premises or when served by caterers;
(5) Any waters or wastes containing iron, chromium, copper, zinc, lead, selenium, mercury, arsenic, barium, cadmium, cyanide, nickel and similar objectionable or toxic substances to such degree that any such material received in the composite wastewater at the wastewater treatment works exceeds the limits established by the Public Works Director or the City Building Official for such materials;
(6) Any waters or wastes containing odor-producing substances exceeding limits which may be established by the City Building Official;
(7) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Public Works Director or the City Building Official in compliance with applicable state or federal regulations;
(8) Quantities of flow, concentrations or both which constitute a “slug”, as defined herein;
(9) Waters or wastes containing substances which are not amenable to treatment or reduction by the wastewater treatment processes employed, or are amenable to treatment only to such degree that the wastewater treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters; and
(10) Any water or wastes which, by interaction with other water or wastes in the public sewer system, release obnoxious gases, form suspended solids which interfere with the collection system or create a condition deleterious to structures and treatment processes.