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PART II <br />Page No. 17 <br />Permit No. COG-500000 <br />For hexavalent chromium, samples must be unacidified so dissolved concentrations will be measured rather than potentially dissolved <br />concentrations. The procedure for determining settleable solids is contained in 40 CFR 434.64. The method detection limit for <br />measuring settleable solids under this part shall be 0.4 mUl. <br />5. Records <br />The permittee shall establish and maintain records. Those records shall include the following: <br />a. The date, type, exact location, and time of sampling or measurements; <br />b. The individual(s) who performed the sampling or measurements; <br />c. The date(s) the analyses were performed; <br />d. The individual(s) who performed the analyses; <br />e. The analytical techniques or methods used; <br />f. The results of such analyses; and <br />g. Any other observations, which may result in, an impact on the quality or quantity of the discharge as indicated in 40 CFR 122.44 <br />(n(1)(iii). <br />The permittee shall retain for a minimum of three (3) years records of all monitoring information, including all original strip chart <br />recordings for continuous monitoring instrumentation, all calibration and maintenance records, copies of all reports required by this <br />permit and records of all data used to complete the application for this permit. This period of retention shall be extended during the <br />course of any unresolved litigation regarding the discharge of pollutants by the permittee or when requested by the Division or EPA. <br />6. Flow Measurin Device <br />If not already a part of the permitted facility, within ninety (90) days after the effective date of the permit, a flow measuring device shall <br />be installed to give representative values of effluent quantities at the respective discharge points. Unless specifically exempted or <br />modified by the Division, a flow-measuring device will be applicable at all designated discharge points. <br />At the request of the Division, the permittee shall show proof of the accuracy of any flow-measuring device used in obtaining data <br />submitted in the monitoring report. The flow-measuring device must indicate values within ten (10) percent of the actual flow being <br />discharged from the facility. <br />7. Sienatorv and Certification Requirements <br />a. All reports and other information required by the Division, shall be signed and certified for accuracy by the permittee in accord <br />with the following criteria: <br />i) In the case of corporations, by a principal executive officer of at least the level of vice-president or his or her duly <br />authorized representative, if such representative is responsible for the overall operation of the facility from which the <br />discharge described in the form originates; <br />ii) In the case of a partnership, by a general partner; <br />iii) In the case of a sole proprietorship, by the proprietor; <br />iv) In the case of a municipal, state, or other public facility, by either a principal executive officer, ranking elected official, or <br />other duly authorized employee. <br />b. All reports required by permits, and other information requested by the Division shall be signed by a person as described above <br />or by a duly authorized representative of that person. A person is a duly authorized representative Qply if <br />i) The authorization is made in writing by a person described above; <br />ii) The authorization specifies either an individual or a position having responsibility for the overall operation of the regulated <br />facility or activity such as the position of plant manager, operator of a well or a well field, superintendent, position of <br />equivalent responsibility, or an individual or position having overall responsibility for environmental matters for the <br />company. (A duly authorized representative may thus be either a named individual or any individual occupying a named <br />position); and, <br />iii) The written authorization is submitted to the Division. <br />If an authorization as described in this section is no longer accurate because a different individual or position has responsibility <br />for the overall operation of the facility, a new authorization satisfying the requirements of this section must be submitted to the <br />Division prior to or together with any reports, information, or applications to be signed by an authorized representative.