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�� '+ EXHIBIT A I <br /> by the Director of Engineering and Infrastructure to the District or the Illinois , <br /> Environmental Protection Agency on request. <br /> 7 Take such other remedial action as ma be deemed to be II <br /> � ) Y <br /> desirable or necessary to achieve the purpose of this ordinance. <br /> (8) All measurements, tests, and analyses of the characteristics of <br /> waters and wastes to which reference is made in this Chapter shall be <br /> determined in accordance with the latest edition of"Standard Methods for the <br /> Examination of Water and Wastewater," published by the American Public Health <br /> Association, and shall be determined at the control manhole provided, or upon <br /> suitable samples taken at said control manhole. In the event that no special <br /> manhole has been required, the control manhole shall be considered to be the <br /> nearest downstream manhole in the public sewer to the point at which the <br /> building sewer is connected. Sampling shall be carried out by customarily <br /> accepted methods to reflect the effect of constituents upon the sewage works <br /> and to determine the existence of hazards to life, limb, and property. (The <br /> particular analyses involved will determine whether a 24 hour composite of all <br /> outfalls of a premise is appropriate or whether a grab sample or samples should <br /> be taken.) Normally, but not always, BOD and suspended solids analyses are <br /> obtained from 24-hour composites of all outfalls whereas pH's are determined <br /> from periodic grab samples. <br /> (9) Admission to property. Whenever it shall be necessary for the <br /> purposes of this section, upon the presentation of credentials, the Director of <br /> Engineering and Infrastructure, or designee, may enter upon the property or <br /> premises at reasonable hours or at any hour in the case of an emergency for the <br />