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(d) Where the Director determines access and equipment for monitoring or measurlng Class III wastewater discharges is not pract±cable, reliable, or cost effective, the Director may ~pecify alternative methods of determining the character- istics of the wastewaters discharge which will, in the Director's judgment, provide an equitable measurement of such characteristics. Section 38-110. Determination of Wastewater Characteristics. (a) Measurements, tests, and analyses of the character- istics of wastewater to which reference is made in this Article shall be determined in accordance with the latest edition of "Standard Methods for the Examination of Water and Wastewater", published by the American Public Health Association or Such alternate methods approved by the Director and which comply with state and federal law. Sampling methods, locations, times, durations, and frequencies are to be determined on an individual basis, subject to approval by the Director. The discharger shall have the option to use, at his own expense, more complete sampling methods, locations, times, durations, and frequencies than specified by the Director. (b) Measurements, tests, and analyses of the characteristics of wastewater required by this Article shall be performed by a qualified laboratory. When such analyses are required of a discha'rger, the discharger may, in lieu of using the City's laboratory, make arrangement with any qualified laboratory, including that of the discharger, to perform such analyses. (c) Monitoring of wastewater characteristics necessary for determination of compliance with applicable pretreatment standards shall be conducted on the basis of the following schedule, unless more frequent monitoring is required by authority other than this Article, or if the Director, in his judgment, determines that the Characteristics of the specific discharge warrant a different frequency monitoring: A~erage Actual DaityUs'e'r' Discharge less than 100,000 gpd 100,000 - 999,999 gpd more than 999,999 gpd Monitoring Frequency semi-annually quarterly monthly ~d} Monitoring of wastewater characteristics for any purpose other than the determination of compliance with pre- treatment standards shall be conducted on a frequency deemed necessary by the Director. (el Upon demonstration by any person that the character- istics of the wastewater discharged by that person are consistent, the Director may reduce the frequency as may be required by authority other than this Articie, except in no case shall the frequency of monitoring be less than semi-annual for the determination of compliance with p~etreatment standards.