83-037 ORD PROVIDING CODE OF ORDINANCES BE AMENDED BY REVISING CHAPTER 31 SECTION 31-1 AND 31-37 THROUGH SECTION 31-43 OF SAID CODE

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1317) into the POTW (including holding tank waste) . 24) Industrial User - A source of indirect discharge which does not constitute a "discharge of pollutants" under regulations issued pursuant to Section 402 of the Act (33 U.S.C. 1342), including the following : a) A major industry discharging in excess of two hundred (200) pounds of BOD or suspended solids per day, or a waste containing toxic or hazardous material; b) An institution discharging through a monitoring device; c) A light industry discharging less than two hundred (200) pounds of BOD or suspended solids per day; d) A commercial industry discharging domestic waste, but with the potential to discharge industrial or toxic waste by spillage or process revision. 25) Industrial Waste - Waste resulting from any process involved with industry, manufacturing, trade or business concerned with the development of any natural resource, or any mixture of the waste with water or domestic wastewater, or distinct from normal wastewater. 26) Interference - Any inhibition or disruption of the POTW treatment processes or operations which contributes to a violation of any requirements or limitations of the City's NPDES permit. The term also includes any prevention of sludge use or disposal by the POTW in accordance with Section 405 of the Act (33 U. S. C. 1345) or any criteria, guidelines, or regulations developed pursuant to the Solid Waste Disposal Act ( SWDA) , the Clean Air Act, the Toxic Substances Control Act, or more stringent state criteria (including those contained in any state sludge management plan prepared pursuant to Title IV of SWDA applicable to the method of disposal or use employed by the POTW). 27) Milligrams per liter (mg/1) - A weight-to-volume ratio equivalent to parts per million. 28) National Categorical Pretreatment Standard - Also referenced simply as "Pretreatment Standard", denoting any regulation containing pollution discharge limits promulgated by the EPA in accordance with Section 307 (b) and (c) of the Act (33 U. S. C. 1347) which applies to a specific category of industrial users. 29) National Pollution Discharge Elimination System (NPDES) Permit-A permit issued pursuant to Section 402 of the Act (33 U.S.C. 1342). 30) National Prohibitive Discharge Standard - Sometimes referenced as "Prohibitive Discharge Standard", denoting any regulation developed under the authority of Section 307 (b) of the Act and 40 CFR, Section 403.5. 5