Sec. 19-5-5. Periodic compliance/self-monitoring reports.

(a) All industrial users shall, at a frequency determined by the director, but in no case less than twice per year during the months of June and December, submit a periodic compliance or self-monitoring report indicating the nature and concentration of pollutants in the discharge which are limited by pretreatment standards or pretreatment requirements. In addition, this report shall include a record of all daily flows which during the reporting period exceeded the average daily flow, and the measurement of estimated average and maximum daily flows for the reporting period.
(b) The director may impose mass limitations on industrial users which are using dilution to meet applicable pretreatment standards or pretreatment requirements, or in other cases where the imposition of mass limitations are appropriate. In such cases, the report required by subsection (a) of this section shall indicate the mass of pollutants regulated by pretreatment standards or pretreatment requirements 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 director, of pollutants contained therein which are limited by the applicable pretreatment standards or pretreatment requirements. The frequency of monitoring shall be prescribed in the applicable pretreatment standard or pretreatment requirements. All analysis shall be performed in accordance with procedures established by the Administrator pursuant to Section 304(g) of the Act and contained in 40 CFR Part 136 and amendments thereto or with any other test procedures approved by the Administrator. Sampling shall be performed in accordance with this chapter and the techniques approved by the Administrator.
(c) All wastewater samples must be representative of the user's discharge. Wastewater monitoring and flow measurement facilities shall be properly operated, kept clean, and maintained in good working order at all times. The failure of a user to keep its monitoring facility in good working order shall not be grounds for the user to claim that sample results are unrepresentative of its discharge.
(d) If a user subject to the reporting requirement in this section monitors any pollutant more frequently than required by the director, using the procedures prescribed in Section 19-5-14, the results of this monitoring shall be included in the report.
(e) At the discretion of the director and in consideration of such factors as local high or low flow rates, holidays, budget cycles, etc., the director may agree to alter the months during which the above reports are to he submitted. Any revised dates shall be noted in the user's industrial wastewater discharge permit. (Ord. No. 1271, § 1 (part).)