(A) The village shall make and enforce rules and regulations establishing the types and characteristics or sewage, industrial wastes and other matters which shall be discharged into the sanitary sewage system, the types and characteristics of sewage and industrial wastes admissible to the system only after pretreatment, requisites for pretreatment, and otherwise governing the discharge of sewage, industrial wastes and other matters into the system in the interest of safety and efficient operation of the wastewater treatment plant. Applicable industrial pretreatment conditions and industrial pretreatment regulations, as promulgated under § 307(b) of the Clean Water Act, and hereby incorporated in this subchapter and made a part thereof.
(B) An industry must, upon application for sewer service, present to the village a tabulation of the chemical analysis of the wastes to be discharged to sewage system and the volume of the wastes, or if this is not available, the expected waste analysis based on similar processes now in operation.
(C) In cases where the character of sewage or industrial waste from any manufacturing or industrial plant, building or premises is such that it will damage the sewer system or cannot be treated satisfactorily at the wastewater treatment plant, the village shall compel the users to dispose of the waste and prevent it from entering the sewage system.
(D) In cases where the character of sewage or industrial waste from any manufacturing or industrial plant, building or premises is such that it imposes an unreasonable burden upon the sewage collection, pumping or treatment works greater than that imposed by the average sewage entering the sewage system, the village may: compel the manufacturing or industrial plant, building or premises to pretreat the matter as specified by the village before discharging it into the sewer system; require flow control or equalization of the wastes so as to avoid any "slug" loads or excessive loads that may be harmful to the treatment works; or require payment of a surcharge on any excessive flows or loadings discharged to the treatment works to cover the additional costs of having capacity for and treating the wastes. The village also has the right to contract or make a special agreement for treatment or disposal of wastes in order to ensure that the integrity of the treatment facilities and the receiving stream is preserved.
(E) (1) The discharge of nonacceptable industrial wastewater into the sewer system, whether directly or indirectly, is prohibited. Wastewater shall be deemed nonacceptable when the concentration of harmful or toxic substances in the wastewater exceeds certain prescribed tolerable limits. In accordance with § 307(a) of the Clean Water Act, toxic or harmful substances include, but are not necessarily limited to, the following:
Toxic or Harmful Substance | Tolerable Limits |
Toxic or Harmful Substance | Tolerable Limits |
Arsenic | 0.2 |
Barium | 1.0 |
Boron | 5.0 |
Cadmium | 0.1 |
Chromium +3 | 0.5 |
Chromium +6 | 0.5 |
Cobalt | 1.0 |
Copper | 0.5 |
Cyanide (HCN) | 0.5 |
Fluoride | 5.0 |
Iron | 5.0 |
Lead | 0.5 |
Mercury | 0.02 |
Molybdenum | 5.0 |
Nickel | 2.0 |
Phenols | 5.0 |
Selenium | 0.10 |
Silver | 0.03 |
Sulfides | 50.0 |
Total Dissolved Solids | 1,500.0 |
Tungsten | 5.0 |
Zinc | 2.0 |
Radioactive substances | Gross beta activity (in the known absence of strontium and alpha emitters) - 1,000\micro micro curies per liter |
(2) The preceding list of toxic or harmful substances is subject to revisions as required to meet current water quality standards or effluent standards imposed by state or federal agencies. In special cases (low volume users), the concentration of toxic or harmful substances in the wastewater may be exceeded if it is determined by the village that the total pounds of toxic or harmful substances discharged to the sewage system are not harmful to or will not interfere with the sewage treatment process or will not violate water quality standards.
(F) (1) No person shall discharge or cause to be discharged, either directly or indirectly to the sewage system, any of the following described substances materials, waters or wastes:
(a) Any liquid or vapor having a temperature higher than 150°F;
(b) Any gasoline, benzene, naphtha, fuel, oil, mineral oil or other volatile flammable or explosive liquid, solid or gas;
(c) Any noxious or malodorous gas or substance which, either singly or by interaction with other wastes, is capable of creating a public nuisance or hazard to life or of preventing entry into the sewers for their maintenance and repair;
(d) Any waters or wastes having a pH lower than six and one-half or higher than nine or having any other corrosive property or causing damage or hazard to structures, equipment or personnel of the sewer system;
(e) Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, paunch manure, hair and fleshing, entrails, solids or any other solid objects or viscous substances capable of causing obstruction to the flow operation of the sewage system;
(f) Any waters or wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters of the sewage system;
(g) Any water or waste containing emulsified oil or grease exceeding on analysis an average of 50 milligrams of oil and grease per liter, determined as total soluble matter. Any garbage that has not been properly shredded to a degree that all particles will be carried freely under the flow conditions of the sewer and with no particle greater than one-half inch in any dimension;
(h) Any water or wastes containing suspended solids of a character or quality that unusual attention or expense is required to handle materials at the sewage treatment plant, or having a chlorine demand greater than 25 parts per million;
(i) Any waste containing substances that would result in a violation of the NPDES permit.
(2) The above list is subject to revisions as required to meet current water quality standards imposed by the state or federal agencies.
(G) No statement contained in this section shall be interpreted as preventing any special agreement or arrangement between the village and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the village for treatment. In all such cases, the provisions set forth in the village ordinance establishing sewer service charges will be the governing factors in any contracts entered into.
(H) (1) Grease, oil and sand interceptors shall be provided when, in the opinion of the village, they are necessary for proper handling of liquid wastes containing grease in excessive amounts or any flammable wastes, sand and other harmful ingredients; except that, the interceptors shall not be required for private living quarters of dwelling units. All interceptors shall be located as to be readily and easily accessible for cleaning and inspection.
(2) Grease and oil interceptors shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperature. They shall be of substantial construction, water-tight and equipped with easily removable covers which when bolted in place shall be gas-tight and water-tight. Where installed, all grease, oil and sand interceptors shall be maintained by the owner at his or her expense, in continuous efficient operation at all times.
(Ord. 8-04, passed 9-13-2004) Penalty, see § 52.99