(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 and 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 Section 307(b) of the Clean Water Act, are hereby incorporated in this chapter by reference and made a part hereof.
(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 the 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 dam-age the sewerage system or cannot be treated satisfactorily at the wastewater treatment plant, the Village shall compel such user 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) 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 waste-water exceeds certain prescribed tolerable limits. Toxic or harmful substances include, but are not limited to, the following:
Toxic or Harmful Substance | Tolerable Limits |
Toxic or Harmful Substance | Tolerable Limits |
Arsenic | 0.2 mg/1 |
Barium
| 1.0 mg/1 |
Boron | 5.0 mg/1 |
Cadmium
| 0.1 mg/1 |
Chromium +3
| 0.5 mg/1 |
Chromium +6
| 0.5 mg/1 |
Cobalt | 1.0 mg/1 |
Copper
| 0.5 mg/1 |
Cyanide (HCN)
| 0.5 mg/1 |
Fluoride
| 5.0 mg/1 |
Iron | 5.0 mg/1 |
Lead
| 0.5 mg/1 |
Mercury
| 0.02 mg/1 |
Molybdenum | 5.0 mg/1 |
Nickel
| 2.0 mg/1 |
Phenols
| 5.0 mg/1 |
Selenium | 0.10 mg/1 |
Silver | 0.03 mg/1 |
Sulfides
| 50.0 mg/1 |
Total dissolved solids
| 1,500.0 mg/1 |
Tungsten | 5.0 mg/1 |
Zinc
| 2.0 mg/1 |
Radioactive substances
| Gross Beta activity (in the known absence of strontium and Alpha emitters) - 1,000 micro micro curies per liter |
Such list of toxic or harmful substances is subject to revision 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 sewerage system are not harmful to or will not interfere with the sewage treatment process or will not violate water quality or effluent standards.
(f) 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:
(1) Any liquid or vapor having a temperature higher than 150 degrees Fahrenheit ;
(2) Any gasoline, benzene, naptha, fuel, oil, mineral oil or other volatile flammable or explosive liquid, solid or gas;
(3) 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;
(4) Any waters or wastes having a pH lower than 5.5 or higher than 9.0, or having any other corrosive property capable of causing damage or hazard to structures, equipment or personnel of the sewerage system ;
(5) Any ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, paunch manure, hair and fleshing, en-trails, lime slurry, lime, chemical or paint residues, cannery wastes, bulk solids or other solid objects or viscous substances capable of causing obstruction to the flow operation of the sewerage system;
(6) Any waters or wastes containing a toxic or poisonous substance in sufficient quantity to injure or interfere with any sewerage treatment process, to constitute a hazard to humans or animals or to create any hazard in the receiving waters of the sewerage system;
(7) Any waters or wastes containing emulsified oil or grease exceeding, on analysis, an average of fifty milligrams of oil and grease per liter determined as total ether soluble matter;
(8) 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 ;
(9) Any waters 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 twenty-five parts per million; or
(10) Any waste containing substances that would result in a violation of the NPDES permit.
The items described in paragraphs (f)(1) to (10) hereof are subject to revision as required to meet current water quality standards imposed by 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 Chapter 915 will govern factors in any contract entered into.
(h) Grease, oil and sand interceptors shall be provided when, in the opinion of the Village, they are necessary for the 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.
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, watertight and equipped with easily removable covers which, when bolted in place, shall be gastight and watertight. 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. 1066. Passed 5-5-86.)