10095-11 Amend Code Ch 17 Art. 2 Div. 1,3,4 and 6 EPA's Model Pretreatment Ordinance

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� Commercial user means any establishment involved in a commercial enterprise, business or service which based on a determination by the City discharges primarily segregated domestic wastes or wastes from sanitary conveniences. �r,� Compatible pollutant means biochemical oxygen demand, suspended solids, pH and fecal coliform bacteria, plus additional pollutants identified in the NPDES permit if the treatment works was designed to treat such pollutants and in fact does remove such pollutants to a substantial degree. The term substantial degree is not subject to precise definition, but generally contemplates removals in the order of eighty (80) percent or greater. Minor incidental removals in the order of ten (10) to thirty (30) percent are not considered substantial. Examples of the additional pollutants which may be considered compatible include: (1) Chemical oxygen demand, (2) Total organic carbon, (3) Phosphorus and phosphorus compounds, (4) Nitrogen and nitrogen compounds, (5) Fats, oils and greases of animal or vegetable origin (except as prohibited where these materials would interfere with the operation of the treatment works). � �s) Control Authoritv means the Cit�of South Bend's Division of Environmental Services. �� Daily Maximum means the arithmetic avera�e of all effluent samples for_a pollutant collected during a calendar dav. �u) Daily Maximum Limit means the maximum allowable dischar�e limit of a pollutant during a calendar day. Where Daily Maximum Limits are expressed in units of mass, the dailv discharge is the total mass dischar�ed over the course of the day. Where Dailv Maximum Limits are expressed in terms of a concentration, the dailv dischar�e is the arithmetic avera�L measurement of the pollutant concentration derived from all measurements taken that dav. � Debt service cost means the average annual principal and interest payments on all proposed revenue bonds or other long-term capital debt. � Director means the Director of the �'��r^�m°�*�, c°^,;�°� public Works of the City of South Bend, Indiana, or �s the Director's authorized deputy, agent or 5