(A) Any significant industrial users subject to a categorical pretreatment standard, after the compliance date of such categorical standard, or, in the case of a new source, after commencement of the discharge into the POTW, shall submit to the environmental officer during the months of June and December, unless required more frequently in the categorical standard or by the environmental officer, TCEQ, or EPA, a report indicating the nature and concentration of pollutants in the discharge which are limited by such categorical pretreatment standards. In addition, this report shall include a record of measured or estimated average and maximum daily flows for the reporting period for the discharge reported in § 56.12(C)(4), except that the environmental officer may require more detailed reporting of flows. At the discretion of the environmental officer and in consideration of such factors as local high or low flow rates, holidays, budget cycles, etc., the environmental officer may agree to alter the months during which the above reports are submitted. All periodic compliance reports must be signed and certified in accordance with § 56.18 of this chapter.
(B) Where the environmental officer has imposed mass limitations on an industrial user as provided for by 40 C.F.R. § 403.6(d), the report required by division (A), above, shall indicate the mass of pollutants regulated by the applicable categorical pretreatment standards in the discharge for the industrial user.
(C) For industrial users subject to equivalent mass or concentration limits established by the environmental officer in accordance with the procedures in 40 C.F.R. § 403.6(c), the report required by division (A), above, shall contain a reasonable measure of the user's long term production rate. For all other industrial users subject to categorical pretreatment standards expressed only in terms of allowable pollutant discharge per unit of production (or other measure of operation), the report required by division (A), above, shall include the user's actual average production rate for the reporting period.
(D) All wastewater samples must be representative of the industrial 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 an industrial 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.
(E) If an industrial user subject to the reporting requirement of this section monitors any pollutant more frequently that required by the environmental officer, using the procedures prescribed in § 56.16(A) of this chapter, the results of this monitoring shall be included in this report.
(Ord. 160726-A, passed 7-26-2016)