(A) The following described substances, materials, waters, or waste shall be limited, in discharges to municipal systems, 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 Superintendent may set limitations lower than the limitations established in the regulations below if in his or her opinion the more severe limitations are necessary to meet the above objectives. In forming his or her opinion as to the acceptability, the Superintendent will give consideration to such factors as the quantity of subject waste in relation to flows and velocities in the sewers, the wastewater treatment process employed, capacity of the wastewater treatment plant, degree of 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 sever which shall not be violated without approval of the Superintendent are as follows:
(1) Wastewater having a temperature higher than 150ºF (65ºC);
(2) Wastewater containing more than 25 milligrams per liter of petroleum oil, nonbiodegradable cutting oils or products of mineral oil origin;
(3) Wastewater from industrial plants containing floatable oils, fats, or grease;
(4) Any garbage that has not been properly shredded as defined in § 53.001. 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, and similar objectionable or toxic substances to the degree that any such material received in the composite wastewater at the wastewater treatment works exceeds the limits established by the Superintendent for those materials;
(6) Any waters or wastes containing odor-producing substances exceeding limits which may be established by the Superintendent;
(7) Any radioactive wastes or isotopes of a half-life or concentration as may exceed limits established by the Superintendent 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 the degree that the wastewater treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters;
(10) Any water or wastes which, by interaction with other water or wastes in the public sewer system, release obnoxious gases from suspended solids which interfere with the collection system, or create a condition deleterious to structures and treatment processes;
(11) Any water or wastes subject to the categorical pretreatment standards pursuant to 40 C.F.R. part 403; or
(12) Any water or wastes exceeding the following parameters:
(a) BOD5: 225 mg/l; or
(b) S.S.: 225 mg/l.
(2005 Code, § 53.054) (Ord. G-92-04, passed 6-15-1992)