(A) The village shall make and enforce rules and regulations establishing the types and characteristics of sewage, industrial wastes and other matters which shall be discharged into the sanitary sewerage 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 § 507(b) of the Clean Water Act, being 33 U.S.C. § 1367 are hereby incorporated in this chapter 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 sewerage system and the volume of such 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 sewerage system or cannot be treated satisfactorily at the wastewater treatment plant, the village shall compel such users to dispose of such waste and prevent it from entering the sewerage system.
(D) In cases where the character of the 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 sewerage system, the village may: compel such manufacturing or industrial plant, building or premises to pretreat such sewage in such manner as specified by the village before discharging it into the sewerage system; require flow control or equalization of such 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 such wastes.
(E) (1) The discharge of nonacceptable industrial wastewater into the sewerage 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. 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 mg/l |
Barium | 1.0 mg/l |
Boron | 5.0 mg/l |
Cadmium | 0.1 mg/l |
Chromium +3 | 0.5 mg/l |
Chromium +6 | 0.5 mg/l |
Cobalt | l.0 mg/l |
Copper | 0.5 mg/l |
Cyanide (HCN) | 0.5 mg/l |
Fluoride | 5.0 mg/l |
Iron | 5.0 mg/l |
Lead | 0.5 mg/l |
Mercury | 0.02 mg/l |
Molybdenum | 5.0 mg/l |
Nickel | 2.0 mg/l |
Phenols | 5.0 mg/l |
Radioactive substances | Gross beta activity (in the known absence of strontium and alpha emitters) - 1,000 micro curies per liter |
Selenium | 0.10 mg/l |
Silver | 0.03 mg/1 |
Sulfides | 50.0 mg/l |
Total dissolved solids | 1,500.0 mg/l |
Tungsten | 5.0 mg/l |
Zinc | 2.0 mg/l |
(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 or effluent standards.
(F) (1) No person shall discharge or cause to be discharged, either directly or indirectly to the sewerage 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, naptha, 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 5.5 or higher than 9.0, or having any other corrosive property of causing damage or hazard to structures, equipment or personnel of the sewerage system;
(e) Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood punch manure, hair and fleshing, entrails, lime slurry, lime, chemical or paint residues, cannery wastes bulk solids, or any other solid objects or viscous substance capable of causing obstruction to the flow operation of the sewerage system;
(f) Any waters or wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewerage treatment process, constitute a hazard to humans or animals, or create any hazard in the receiving waters of the sewerage system;
(g) Any water or wastes containing emulsified oil or grease, exceeding, on analysis, an average of 50 milligrams of oil and grease per liter determined as total either soluble matter;
(h) 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;
(i) Any water or wastes containing suspended solids of such character or quality that unusual attention or expense is required to handle such materials at the sewage treatment plant, or having a chlorine demand greater than 25 parts per million; and
(j) 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 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 such interceptors shall not be required for private living quarters or 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. 91-4, passed - -1991) Penalty, see § 52.99