(A) Municipalities may sample, and analyze, user discharges in lieu of requiring the users to conduct sampling and analysis.
(B) All significant industrial users shall, at a frequency determined by the POTW Director, but in no case less than once every six months, submit a report indicating the nature, and concentration, of pollutants in the discharge which are limited by pretreatment standards, and the applicable flows for the reporting period. Sampling and analysis must be performed in accordance with procedures set out in §§ 21-354 and 21-355. All periodic compliance reports must be signed, and certified, in accordance with § 21-336(D).
(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 his or her monitoring facility in good working order shall not be grounds for the user to claim that sample results are unrepresentative of his or her discharge.
(D) If a user, subject to the reporting requirement in this section, monitors any pollutant more frequently than required by the POTW Director, using the procedures prescribed in §§ 21-354 and 21-355, the results of this monitoring shall be included in the report.
(Ord. 33-2002, passed 10-21-2002; Ord. 29-2008, passed 10- -2008)