§ 23-60. Prohibited substances.

(a)

It shall be unlawful to throw or deposit, or cause or permit to be thrown or deposited, in any public sewer or receptacle connected with the same, the following:

(1)

Any gasoline, benzene, naphtha, fuel oil or other flammable or explosive liquid, solid or gas;

(2)

Any waters containing toxic or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any waste treatment process or constitute a hazard in the receiving waters of the wastewater treatment plant;

(3)

Any waters or wastes having a pH lower than 5.5 or greater than 9.0, or having any other corrosive property capable of causing damage or hazard to structures, equipment and personnel of the wastewater works;

(4)

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, bones, 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, etc., either whole or ground by garbage grinders.

(b)

The following described substances, materials, waters or wastes 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 life, limb or public property or constitute a nuisance. The city council may set limitations lower than the limitations established in the regulations below if, in its opinion, such more severe limitations are necessary to meet the above objectives. In forming its opinion as to the acceptability, the city council 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. The limitations or restrictions on materials or characteristics of waste or wastewater discharged to the sanitary sewer which shall not be violated without approval of the city council are as follows:

(1)

Wastewater having a temperature higher than one hundred fifty (150) degrees Fahrenheit (sixty-five (65) degrees Celsius) or will cause the temperature at the influent to a treatment plant to exceed one hundred four (104) degrees Fahrenheit (forty (40) degrees Celsius);

(2)

Wastewater containing more than twenty-five (25) milligrams per liter of petroleum oil, nonbiodegradable cutting oils or product of mineral oil origin;

(3)

Wastewater containing more than one hundred (100) milligrams per liter of oil, fat or grease;

(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)

Any wastewaters having an excess of (limits in parts per million or milligrams per liter): Silver 0.10, Barium 5.0, Tin 1.0, Lead 0.1, Mercury 0.005, Nickel 0.4, Zinc 1.0, Copper 0.1, Cadmium 0.02, Total Chrome 1.8, Selenium 0.02, Chlorides 250, and any substance or combination thereof that reduces the BOD by ten (10) percent will be considered as a toxic material. In addition, the limits for the following are: Antimony 0.0, Beryllium 0.01, Bismuth 0.0, Cobalt 0.0, Cyanide 0.0, Molybdenum 0.0, Rhenium 0.0, Tellurium 0.0, Uranyl ion 0.0, Strontium 0.0, herbicides 0.0, fungicides 0.0 and pesticides 0.0;

(6)

Any waters or wastes containing odor-producing substances exceeding limits which may be established by the city council;

(7)

Any radioactive wastes 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, concentrations or both which constitute a slug;

(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;

(10)

Any waters or wastes which, by interaction with other waters 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 processes;

(11)

Wastewater containing constituents in concentrations which are in excess of the concentrations set for normal wastewater (250 mg/l BOD ₅ and TSS, 30 mg/l TKN, 15 mg/l phosphorous).

(c)

No person shall discharge or cause to be discharged any sanitary wastewater into the storm sewer system without exception.

(d)

Cooling and/or condensing water may be discharged to the storm sewer system only if a NPDES permit is obtained from the FDER.

(Code 1959, § 24-22)