Where pretreatment or control facilities are provided, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense and shall be subject to periodic inspection by the city. The owner shall maintain operating records as required by the city and shall submit to the city, as required by the city, reports of the character of the influent and effluent to show the performance of the pretreatment or control facilities.
(A) Any user subject to a pretreatment standard, after the compliance date of such pretreatment standard, or, in the case of a new source, after commencement of the discharge into the treatment works, shall submit to the Operator during the months of June and December, unless required more frequently in the pretreatment standard or by the Operator, a report indicating the nature and concentration of pollutants in the effluent which are limited by such pretreatment standards. In addition, this report shall include a record of all daily flows which during the reporting period exceeded the average daily flow reported in § 51.020. At the discretion of the Operator and in consideration of such factors as local high and low flow rates, holidays, budget cycles, and the like, the Operator may agree to alter the months during which the above reports are to be submitted. These reports shall be signed by an authorized representative (as defined by 40 C.F.R. 403.12 (k)) and the accuracy certified by a qualified professional.
(B) The Operator may impose mass limitations on users which are using dilution to meet applicable pretreatment standards or requirements, or in other cases where the imposition of mass limitations is appropriate. In such case, the report required by division (A) above shall indicate the mass of pollutants regulated by pretreatment standards in the effluent of the user. These reports shall contain the results of sampling and analysis of the discharge, including the flow and the nature and concentration, or production and mass where requested by the Operator, of pollutants contained therein which are limited by the applicable pretreatment standards. The frequency of monitoring shall be prescribed in the applicable pretreatment standard. All analysis shall be performed in accordance with the procedures established by the EPA Regional Administrator pursuant to Section 304 (g) of the Act and contained in 40 C.F.R., Part 136 and amendments thereto or with any other test procedures approved by the EPA Regional Administrator. Sampling shall be performed in accordance with the techniques approved by the EPA Regional Administrator.
(C) No user shall ever increase the use of process water or, in any way, attempt to dilute a discharge as a partial or complete substitute for adequate treatment to achieve compliance with the limitations contained in the Federal Categorical Pretreatment Standards, or in any other pollutant- specific limitation developed by the city or the state. (Comment: Dilution may be an acceptable means of complying with some of the prohibitions set forth in § 51.020 (F); pH regulations).
(Ord., passed 7-13-87) Penalty, see § 51.999