(A) Grease, oil and sand interceptors or traps shall be provided when, in the opinion of the town, 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 or types will not be required for private living quarters or dwelling units. All interceptors or traps shall be of a type and capacity approved by the town and shall be located so as to be readily and easily accessible for cleaning and inspection. They shall be constructed of impervious materials capable of withstanding abrupt and extreme changes in temperatures and shall be of substantial construction, be gas-tight, water-tight and equipped with easily removable covers. The Wastewater Superintendent shall review and approve all such grease, oil and sand interceptors or traps prior to their installation and the facility using town services. Where installed, all grease, oil and sand interceptors or traps shall be maintained by the owner, at his or her expense, in continuously efficient operation at all times. Maintenance activities of all grease, oil and sand interceptors or traps shall be documented as to the date, maintenance vendor, disposal site and disposal date. Documentation shall be submitted to the Wastewater Superintendent no later than 30 days following each maintenance activity. Industrial users shall provide written details of the proposed grease trap, for review and ultimate approval by the Wastewater Superintendent.
(B) Industrial users shall provide necessary wastewater treatment as required to comply with this chapter and shall achieve compliance with all federal categorical pretreatment standards within the time limitations as specified by the federal pretreatment regulations. Any facilities required to pretreat wastewater to a level acceptable to the WWTP shall be provided, operated and maintained at the industrial user’s expense. Detailed plans showing the pretreatment facilities and operating procedures shall be submitted to the town for review and approval of such plans by IDEM before construction of the facility. The review of such plans and operating procedures will in no way relieve the industrial user from the responsibility of modifying the facility as necessary to produce an effluent acceptable to the town under the provisions of this chapter. Any subsequent significant modification in the pretreatment facilities or method of operation affecting its discharge shall be reported to and be acceptable to the town prior the industrial user’s initiation of the changes.
(1) When the POTW demonstrates consistent removal of pollutants limited by federal categorical pretreatment standards, as required by 40 C.F.R. § 403.7, and any amendments thereto, the town may apply to the Administrator of EPA, or IDEM, for authorization to give a removal credit to reflect removal toxic or other regulated pollutants by the town’s wastewater treatment system.
(2) Federal categorical pretreatment standards found under the appropriate part of 40 C.F.R. Ch. I, Subch. N, or state requirements and limitations on discharges shall apply in any case where they are more stringent than those in this chapter.
(Ord. 2014-01-20, passed 1-20-2014)