84-003 ORD PROVIDING CODE OF ORDINANCES BE AMENDED BY REVISING CHAPTER 31 SECTIONS 31-37 THROUGH SECTION 31-43 OF SAID CODE

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discharged or introduced into a public sewer system by specific industrial categories. These standards are promulgated pursuant to Sec. 406.0 of the General Pretreatment Regulations for Existing and New Sources (40 CFR Parts 125 and 403). 9) Chemical Oxygen Demand ( COD The measure of oxygen consuming capacity of organic and inor- ganic matter present in the water or wastewater expressed in mg/1 as the amount of oxygen consumed from a chemical oxidant in a specific test, but not differentiating stable from unstable organic matter and thus not necessarily correlating with biochemical oxygen demand. 10) City - The City of Paris, Paris, Texas, or any authorized person acting in its behalf. 11) Composite Sample - A series of samples mixed together so as to approximate the average strength of discharge to the sewer. A composite sample for a twenty-four hour period shall consist of a pool of not less than twelve samples (100 ml. minimum volume), unless special conditions warrant otherwise and the Supervisor designates an alternative procedure that is acceptable. Samples shall be iced or refrigerated during sampling and transportation to appropriate labo- ratory facilities. 12) Control Manhole - A manhole giving access to a building sewer at a point before the building sewer discharge mixes with other discharges in the public sewer. 13) Control Point - The point on a building sewer where access to a discharge is provided, which shall be before the discharge mixes with others in the public sewer. The control point shall be the control manhole unless otherwise designated by the Supervisor. 14) Cooling Water - Water discharged from air condi- tioning, cooling or other uses, to which the only pollutant added in significant amounts is heat, exclusive of boiler blowdown wastewater. 15) Direct Discharge - The discharge of wastewater, treated or untreated, directly to the waters of the State of Texas. 16) Domestic User - Any person who discharges only normal domestic sewage. 17) Environmental Protection Agency, or EPA - The U. S. Environmental Protection Agency, or where appropriate the term may also be used as a designation for the administrator or other duly authorized official of said agency. 18) Environmental Services Supervisor - The person designated by the City Nlanager to enforce Chap- ter 31 of the Code of Ordinances on behalf of the City and other such duties as designated by the City Manager. 19) Garbage - Animal and vegetable wastes and residue from the preparation, cooking and 2