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No person(s) shall discharge or cause to be discharged any unpolluted waters such as storm water, surface water, groundwater, roof runoff, subsurface drainage or cooling water to any sewer except storm water runoff from limited areas, which stormwater may be polluted at times and may be discharged to the sanitary sewer by permission of the Director.
(Ord. 30, passed 8-21-2008) Penalty, see § 53.999
Storm water, other than that exempted under § 53.050, 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 Director and other regulatory agencies. Unpolluted industrial cooling water or process waters may be discharged, on approval of the Director, to a storm sewer or natural outlet.
(Ord. 30, passed 8-21-2008) Penalty, see § 53.999
No person shall discharge or cause to be discharged any of the following described water or wastes to any public sewers:
(A) Any gasoline, benzene, naphtha, fuel oil, or other flammable or explosive liquid, solid, or gas.
(B) Any waters containing toxic or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes, to contaminate the sludge of any municipal systems, or to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in or have an adverse effect on the waters receiving any discharge from the treatment works. Any user discharging any toxic pollutants which cause an increase in the costs of managing the effluent or the sludge of the city’s treatment works, shall pay for such increased costs;
(C) Any waters or wastes having a pH lower than 5.5 or higher than 9.5 or having any other corrosive property capable of causing damage or hazard to structures, equipment, and personnel of the wastewater works; or
(D) Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers, or other interference with the proper operation of the wastewater facilities such as, but not limited to, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers and the like, either whole or ground by garbage grinders.
(Ord. 30, passed 8-21-2008) Penalty, see § 53.999
(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 Public Works Director may set limitations lower than the limitations established in the regulations below if in his or her opinion such more severe limitations are necessary to meet the above objectives. In forming his or her opinion as to the acceptability, the Public Works Director 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, 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 sewer which shall not be violated without approval of the Public Works Director are as follows:
(1) Wastewater having a temperature higher than 150º F. (65º C.);
(2) Wastewater containing more than 25 milligrams per liter of petroleum oil, non-biodegradable cutting oils or products of mineral oil origin;
(3) Wastewater from a premise containing floatable oils, fat or grease;
(4) Any garbage that has not been properly shredded (see § 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 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 for such materials;
(6) Any waters or wastes containing odor-producing substances exceeding limits which may be established by the Public Works Director;
(7) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Public Works Director in compliance with applicable state or federal regulations;
(8) Quantities of flow, concentrations or both which constitute a SLUG as defined in this chapter;
(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.
(Ord. 30, passed 8-21-2008) Penalty, see § 53.999
(A) If any waters or wastes are discharged, or are proposed to be discharged to the public sewers, which waters contain the substances or possess the characteristics enumerated in § 53.053, and in the judgment of the Director, may have a deleterious effect upon the wastewater facilities, processes, equipment, or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the Director 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 treating the wastes not covered by existing taxes or sewer charges under the provisions of § 53.080.
(B) When considering the above alternatives, the Director shall give consideration to the economic impact of each alternative on the discharger. If the Director 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 Director.
(Ord. 30, passed 8-21-2008)
(A) Grease, oil, and sand interceptors shall be provided when, in the opinion of the Director, they are necessary for the proper handling of liquid wastes containing floatable grease in excessive amounts as specified in § 53.053(C), or any flammable wastes, sand, or other harmful ingredients; except that such interceptors shall not be required for private living quarters or dwelling units.
(B) All interceptors shall be of a type and capacity approved by the Director, and shall be located as to be readily and easily accessible for cleaning and inspection. In the maintaining of these interceptors the owner shall be responsible for the proper removal and disposal by appropriate means of the captivated material and shall maintain records of the dates, and means of disposal which are subject to review by the director. Any removal and hauling of the collected materials not performed by owner personnel must be performed by currently licensed waste disposal firms.
(Ord. 30, passed 8-21-2008)
Every public garage or other place having a wash rack used for washing vehicles shall install a standard garage drain approved by the Public Works Director. Such drain shall be so constructed and operated as to prevent mud, sand and other debris from being washed into the city sewer system and shall be kept in proper working order.
(Ord. 30, passed 8-21-2008) Penalty, see § 53.999
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