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(p) General Standards for Reports <br />(1) Analytical Requirements <br />All pollutant analyses, including sampling techniques, to be <br />submitted as part of a wastewater discharge permit application or report <br />shall be performed in accordance with the techniques prescribed in 40 <br />CFR Part 136 and amendments thereto, unless otherwise specified in an <br />applicable categorical Pretreatment Standard. If 40 CFR Part 136 does not <br />contain sampling or analytical techniques for the pollutant in question, or <br />where the EPA determines that the Part 136 sampling and analytical <br />techniques are inappropriate for the pollutant in question, sampling and <br />analyses shall be performed by using validated analytical methods or any <br />other applicable sampling and analytical procedures, including procedures <br />suggested by the Director or other parties approved by EPA.The Director <br />may require more sensitive analysis if reported pollutant concentrations <br />are not sufficient to determine compliance with Pretreatment Standards or <br />to determine if such Standards are necessary. <br />(2) Sample Collection <br />(w) Bypass <br />b. Except as indicated in Sections 3 c ands d below, the <br />User must collect samples using 24 -hour flow proportional <br />composite sampling techniques unless time - proportional composite <br />sampling or grab sampling is authorized by the Director. Where <br />time - proportional composite sampling or grab sampling is <br />authorized by the Director, the samples must be representative of <br />the discharge. <br />multiple grab samples n a during a 24 hour period <br />total phenolss, and sulfides the samp! s-ffhay-be-eenVasited in the <br />and grease, the samples may be eempesited in the_4aberateyf—.Gfab <br />samples may be required to show eemplianee with instantaneous <br />Limits. <br />5 <br />