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pollutants in the discharge which. are, linii-tedby such pretreatment stan(lards. The user shall <br />collect a minimum of one (1) sample during each six (6) month period ending in June anxi <br />December, ii.rnless required more ffirequently in the par etreatmentstandard orby the supervisor, <br />and perform analyses requiredby the pre.1reatment standard for -the semi-annual report. T.he <br />semi-annual report must be -received by the supervisor within forty-five (45) days following <br />the end of each six (6) month period. Sarrnphng and analyses ti:-) meet federal P.1r.etreatment <br />standards does snot relievethe user of additional monitoring requirements as maybe deemed <br />appropriate by the city. In addition, this :r°eport shall include a record of all daily .flan ws l--dch <br />during the reporting.pa erid exceeded the, -average daily flow reported in, the compliance date <br />report. CR.Js and users are subject to Best Management Practices (BMPs) under a federal <br />categorical pretreatment standard must submit docurnentatiori to demonstrate compliance with <br />a BMP where a required BMP or pollution prevention afterriative is part of the categorical <br />standard with each semi-annual report. <br />(b) All non categorical significant industrial users s.Ihall. collect a minimum of one (1) swnp.le <br />dii.ming each six (6) month reporting period and perfonn analyses for these pol Ititants deemed <br />appropriate by the city for the semi-annual reponing periods specified in subsection (a). Non- <br />cat,egoneal SIT.Js are required to report data obtained through, appropriate sampling 'Md <br />analysis per-f0imed during the period covered by the repart which data are representative of <br />conditions occurring, during the reportilag period. Any additional monitoring of'pollutants in <br />excess of the, minimwn of once per six months must be included in the semi-annual report. if <br />awalyzed. iii,l acco.ii--dm.ce with. 40 CFI R 136 methods. <br />(c) The supervisor rnay irn.pose mass limitations on. users which are using dilution to meet <br />applicable pretreatment standards air requirenients or, in other cases, her the imposition of <br />mass limitations is appropriate. In such cases, the periodic compliance report shall indicate <br />the=ss of pollulants regulated by pretreatment standards in the emuent of the t:iser. These <br />reports shall contain the results of saml.-fling and analysis of the disdharge, includingthy; flow <br />and the nature and concientration.., or productions and mass where regun ested by the supervisor, <br />of pollutants contained herein which are limited by the applicable pretreatment, stamndards,. The <br />Frequency of monitoring shall be at the discretion of the city. All analysis, shall be perfonned <br />hi accordance with procedures est abli-shedby the,EPA pursuant to Section 304(g) of the Act <br />and contained in 40 CFR, Part 136, and amendments thereto or with any other test procedures <br />approved by the EPA. Sampling shall. he perfbrmed in accordarice with the techniques <br />approved by the EPA. <br />Sec. 34-80. - Conand ential infonnation. <br />(a) 'It shall be the policy of the city not to require or accqpt confid,cmdal infortnation from. <br />industrial -users unless necessary to meet state or federal requirements Jnr tea stop or prevent <br />interference or darnage to -the POTW. Any infarmation furnished 'to the city by an. industrial. <br />user which the user co. nsiders conridential shall be clearly marked or st-amped "confidential <br />business iriffirination" on each page containing such information. Information and data on a <br />MMMEUM <br />