§ 19-208. Restricted discharges.  


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  • The following substances, materials, waters, or waste shall be limited in discharges to municipal waste 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 life, limb, public property, or constitute a nuisance. The city manager may set limitations lower than the limitations established in the regulations listed below, if in his opinion, such more severe limitations are necessary to meet the above objectives. In forming his opinion as to acceptability, the city manager 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 process employed, capacity of wastewater treatment plant, degree of treatability of the waste in wastewater treatment plant, and other pertinent factors. The limitations or restrictions on materials or characteristics of waste of wastewater discharged to the sanitary sewer are as follows:

    (1)

    Any substance having a temperature which will inhibit biological activity in the POTW treatment plant resulting in interference, but in no case wastewater with a temperature at the introduction into the POTW which exceeds 40 degrees Celsius (104 degrees Fahrenheit). Unless a higher temperature is allowed under the user's IWDP, no POTW, wastewater with a temperature exceeding 65.5 degrees Celsius (150 degrees Fahrenheit).

    (2)

    Any substance which is harmful to the wastewater collection or treatment system, or is hazardous to the wastewater system because it contains flammable or explosive liquids, solids, or gases which by reason of their nature or quantity are, or may be, sufficient either along or by interaction with other substances to cause fire, or explosion or be injurious in any other way to the wastewater system or to the operation of the wastewater system. At no time, shall two successive readings on an explosive hazard meter, at the point of discharge into the system (or at any point in the system) be more than five percent nor any single reading over ten percent of the lower explosive limit (LEL) of the meter. Such materials may exclude, but are not limited to gasoline, kerosene, naptha, benzene, toluene, xylene, ethers, alcohols, keytones, aldehydes, peroxides, chlorates, perchlorates, bromates, carbides, hydrides and sulfides and any other substances which the city, state, or EPA has notified the user is a fire hazard, a health hazard, or a hazard to the system.

    (3)

    Wastewater containing more than 100 milligrams per liter of oils, fat or grease or any other combination thereof.

    (4)

    Any garbage that has not been properly shredded. 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)

    All wastewater discharge exceeding local limits for metallic substances.

    Local limits shall be set by resolution. The established local limits apply at the point where the wastewater is discharged to the WWF. All concentrations for metallic substances are for total metal unless indicated otherwise. At his or her discretion, the director may impose mass limitations in addition to or in place of the concentration based limitations.

    A copy of the approved local limits is available upon requested at the following location: City of Wildwood Wastewater Treatment Plant.

    (6)

    Any waters or wastes containing odor-producing substances exceeding limits, which may be established by the director.

    (7)

    Any radioactive or isotopes of such half-life or concentrations as may exceed limits established in compliance with applicable state or federal regulations.

    (8)

    Quantities of flow, concentration, or both which constitute a "slug" as defined in section 19-181.

    (9)

    Waters or wastes containing substances which are not amendable to treatment or reduction by the wastewater treatment processes employed, or are amendable 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.

    (10)

    Any water or wastes which, by interaction with other water or wastes in the public sewer system, release obnoxious gases, form solids which interfere with the collection system, or create a condition deleterious to structures and treatment process.

    (11)

    Wastewater, which does not constitute normal wastewater as defined by this article.

    (12)

    Any substances that include or will cause pass through or interference.

(Ord. No. O2013-05, § 2, 2-25-13)