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36. Sewage: Human excrement and grav w2ter (housthold s1ho«Pe.7. dis, � "P).hing operations, etc.) 37. Significant Industrial User (SPJ): The term significant industrial user shall mean: a. Industrial users subject to categorical pretreatment standards, under 40 CFR 403.6 and 40 CFR Chapter I, Subchapter N; and b. Any other industrial user that: (1) Has a discharge flow of 25,000 gallons or more on any given work day to the POTW; (2) Consumes an average of 25,000 gallons per day or more of potable water excluding use for purely domestic purposes; (3) Contributes a process waste stream which makes up five percent (5%) or more of the average dry weather hydraulic or organic capacity of the treatment plant; or, (4) Is designated as significant by the County on the basis that the industrial user has a reasonable potential for causing pass through or interference. 38. Slug Load: Any wastewater containing pollutants in sufficient quantity (flow or concentration), either singly or by interaction with other pollutants, to pass through or interfere with the municipal wastewater system, any wastewater treatment or sludge process, or constitute a hazard to humans or animals. 39. Standard Industrial Classification (SIC) Code: A classification pursuant to the Standard Industrial Classification Manual issued by the "Ezecu6ve Office of the President, Office of Management and Budget. 40. Storm Water. Any flow occurring during or following any form of natural precipitation and resulting therefrom. 41. Suspended Solids: The total suspended matter that floats on the surface of, or is suspended in, water, wastewater, or other liquid, and which is removable by laboratory filtering. 42. Toxic Pollutant: One of 126 pollutants or combination of those pollutants listed as toxic in regulations promulgated by the EPA under L provision of Section 307 (33 USC 1317) of the Act or 40 CFR 401.15 or other laws. EN765TREPORTORDNANC.I 6