(A) Discharge permit requirements. No wastes shall be discharged from any INDUSTRIAL USER as defined in this chapter, into the city sewers or into any sewers under the control of the city without a discharge permit issued by the city.
(B) Pretreatment facilities. A person, firm or corporation discharging or proposing to discharge industrial wastes into any sewer shall, at his or her or its own expense, provide such pretreatment facilities as may be necessary to meet the condition of his or her discharge permit.
(1) Use of facilities. The facilities may be used to:
(a) Reduce or modify the objectionable characteristics or constituents of such industrial wastes to meet the limits or conditions provided for in section § 51.04; and
(b) Meet the current standards and regulations of the local, state and federal regulatory agencies which pertain to the operation and performance of the water pollution control works.
(2) Facilities approval. Plans, specifications and other pertinent information relating to such treatment facilities shall be submitted for the approval of the city, and no construction of such facilities shall be commenced until said approval is obtained in writing.
(3) Facilities maintenance and records. Where such facilities are provided, they shall be maintained continuously in satisfactory and effective operation by the owner at his or her expense and shall be subject to periodic inspection by the city. The owner shall maintain operating records and shall submit to the city a monthly summary report of the character of the influent and effluent to show the performance of the treatment facilities.
(C) Unpolluted water.
(1) Unpolluted water from air conditioning, cooling and condensing systems shall be discharged to a storm sewer or natural outlet approved by the city. Where a storm sewer or natural outlet is not available, such unpolluted water may be discharged to a sanitary sewer only after written approval of the city.
(2) Industrial cooling water, which may be polluted with insoluble oils or grease or suspended solids shall be pretreated for removal of the pollutants and the resultant clear water shall be discharged in accordance with § 51.04.
(D) Industrial agreements. No statement contained in § 51.06 shall be construed as preventing any special agreement or arrangement between the city and any person, firm or corporation whereby an industrial waste of unusual strength or character may be accepted by the city for treatment, subject to payment of equitable wastewater service charges therefor. To qualify for industrial waste rate agreements, any person, firm or corporation shall agree to the following requirements:
(1) Execute an approved agreement form as provided by the city, which agreement shall state the maximum daily quantity of wastes to be discharged to the building sewer through an approved control structure. The quantities shall include, but shall not be limited to, flow expressed in gallons per day, biochemical oxygen demand (BOD) expressed in pounds per day, suspended solids (SS) expressed in pounds per day, ammonia nitrogen expressed in pounds per day and other waste characteristics as may be required by the city;
(2) Construct and maintain approved control structures as outlined in this chapter and approved by the city;
(3) Adjust, modify or change the industrial waste discharge quantities, characteristics, rates and values as may be indicated to enable the city to operate the water pollution control plant to meet the current plant effluent standards; and
(4) Adjust, modify or change the industrial waste discharge qualities, characteristics, rates and values as may be necessary to meet the current standards adopted by the local, state and federal regulatory agencies.
(Prior Code, § 4-4-5) (Ord. 215, passed 3-20-1977) Penalty, see § 51.99