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<br />e <br /> <br />e <br /> <br />procedure, five(5) days at 20 degrees centigrade expressed in terms of <br />mass and concentration [ milligram per liter ( mg/l ) ]. <br /> <br />E, Categorical Pretreatment Standard or Categorical Standard - Any <br />regulation containing pollutant discharge limits promulgated by the V,S, <br />EPA in accordance with sections 270 (b) and ( c ) of the act ( 33 V.S,C. <br />1317 ) which apply to a specific category of industrial users and which <br />appear in 40 CFR Chapter I, Subchapter N, parts 405-471. <br /> <br />F, Certificate of Occupancy - A permit showing that the industry or business <br />has complied with this ordinance and has been shown to have only <br />sanitary waste discharge. <br /> <br />G, City - The City of La Porte or the City Council of La Porte, <br /> <br />H, Chemical Oxygen Demand ( COD) - The measure of oxygen consumed <br />from a chemical oxidant, expressed as mg/1. <br /> <br />I. Color - The optical density at the visual wavelength of maximum <br />absorption, relative to distilled water. One hundred percent ( 100 % ) <br />transmittance is equivalent to zero ( 0,0 ) optical density, <br /> <br />J. Composite Sample - The composite resulting from the combination of <br />individual wastewater samples taken at selected intervals based on an <br />increment of either flow or time, <br /> <br />K. Director of Public Works or Director - The person designated by the City <br />of La Porte to supervise the operation of the POTW, and who is charged <br />with certain duties and responsibilities by this ordinance or his/her <br />authorized representative, <br /> <br />L. Domestic Sewage - Water-borne wastes normally discharging from the <br />sanitary conveniences, free from storm surface water, industrial wastes, <br />and in which the average concentration of total suspended solids is not <br />greater than 300mg/1 and BOD is not more than 250 mg/1. <br /> <br />M, Environmental Protection Agency or EPA - The V.S, Environmental <br />Protection Agency or, where appropriate, the term may also be used as a <br />designation for the Regional Water Management Division Director or <br />other duly authorized official of said agency. <br /> <br />N, Existing Source - Any source of discharge, the construction or operation <br />of which commence prior to the publication of proposed categorical <br />pretreatment which will be applicable to such source if the standard is <br />thereafter promulgated in accordance with Section 307 of the act. <br /> <br />4 <br />