(a) The Municipality shall make and enforce rules and regulations establishing the types and characteristics of sewage, industrial wastes, and other matter 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. The Municipality shall govern the discharge of sewage, industrial wastes, and other matter 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 and made a part thereof.
(b) An industry shall, upon application for sewer service, present to the Municipality 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 Municipality 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 municipality may compel such manufacturing or industrial plant, building, or premises to pretreat such sewage in such manner as specified by the Municipality 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. The municipality shall also have the right to: reject the wastes or require payment to cover the added cost of handling treating, and disposing of 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 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 (MG/L) 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 curles per liter |
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 and meet the requirements of Section 307 (A) of the Clean Air Act. 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 Municipality 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 or categorical standards.
(Ord. 1991-4. Passed 1-18-91.)