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<br />Beginning Septelloer 1, 1991, wastewater treatment facilities shall be classified <br />in a=ordance with the follOW"ing =iteria: <br /> <br />Treabnent Svstem <br />No Discharge Type systems <br /> <br />Pond Systems Preceded by Imhoff <br />Tanks, Primary Clarifiers or <br />Facultative Lagoons <br /> <br />Activated Sludge (Extended <br />Aeration Mode) and Oxidation <br />Ditch Systems <br /> <br />Activated Sludge (Modes other <br />than Extended Aeration) <br /> <br />Trickling Filters, Rotating <br />Biological Contactors, or other <br />Fixed Film Pr=esses <br /> <br />Pennitted Dailv AveraGe Flow <br />All Flows <br /> <br />1. 0 M3D or less <br />Greater than 1. 0 M:;D <br /> <br />0.10 M:;D or less <br />Greater than 0.10 M3D to 1.0 M:;D <br />Greater than 1. 0 M:;D to 10.0 M3D <br />Greater than 10.0 M:;D <br /> <br />0.050 M3D or less <br />Greater than 0.050 M:;D to 1.0 M:;D <br />Greater. than 1.0 M3D to 10.0 M3D <br />Greater than 10.0 M:;D <br /> <br />0.50 M3D or less <br />Greater than 0.50 M:;D to 2.0 M:;D <br />Greater than 2.0 M:;D to 10.0 M3D <br />Greater than 10.0 M:;D <br /> <br />Cateqorv <br />D* <br /> <br />D* <br />C <br /> <br />D* <br />C <br />B <br />A <br /> <br />D* <br />C <br />B <br />A <br /> <br />D* <br />C <br />B <br />A <br /> <br />* Category D wastewater treabnent facilities shall be reclassified as Category C <br />facilities if any of the following conditions exist: <br /> <br />1. Any Category D facility incm:porating anaerobic sludge digestion. <br />(Imhoff tanks with sludge drawn off to drying beds are not considered <br />as anaerobic digestion). <br /> <br />2. Any category D facility whose pennit requires nutrient reduction. <br /> <br />3. Arrj category D facility whose pennit requires the final effluent to <br />meet a daily average ooD5 or 'ISS concentration less than 10 rrgjl. <br /> <br />The treabnent facility classification may also be increased for those facilities <br />which include unusua'uy complex processes or which present unusual operation or <br />maintenance concH tions. <br /> <br />The chief operator or operator in responsible charge of each wastewater <br />treabnent facility shall possess a certificate at least as high as that of the <br />category of treabnent facility. Where shift operation is necessary, each shift <br />which is not supervised by the chief operator must be supervised by an operator <br />who is certified at not less than one (1) level below the category of the plant. <br /> <br />Mini:num Certification levels at Treatment Facilities <br /> <br />Cateqorv of Facilitv <br /> <br />Chief Operator <br />(Operator in Responsible Charqel <br /> <br />Shift Operator <br />(in Charqe) <br /> <br />A <br />B <br />C <br />D <br /> <br />A <br />B <br />C <br />D <br /> <br />B <br />C <br />D <br />D <br /> <br />4 <br />