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<br />C. FOOTNOTES (Continued) <br />PART I <br />Page 3 of 19 <br />f/ - In the event an oil sheen is observed, a grab sample shall be <br />collected, analyzed, and reported. In addition, corrective action <br />shall be taken immediately to mitigate the discharge of oil and <br />grease. <br />$/ - Salinity shall be measured as Total Dissolved Solids (TDS). Where <br />based on a minimum of 5 samples, the permittee demonstrates, to the <br />satisfaction of the Water Quality Control Division, that the level of <br />TDS in the effluent can be calculated based upon the level of <br />electrical conductivity, the permitiee may measure and report <br />salinity in terms of electrical conductivity. <br />h/ - Salinity shall be sampled on a monthly basis until six samples have <br />been analyzed. A report of "No Discharge" shall not be counted as <br />one of the six sampled. Thereafter, monitoring shall continue on a <br />quarterly basis. Folloviag submittal of Snitial six sets of monthly <br />data, the Division shall determine vhether the permittee is required <br />to submit a report addressing salt removal in accordance vith <br />Regulations For Implementation of the Colorado River Salinity. <br />Standards Through the NPDES Permit Program 3.10.0. If the salinity <br />• report is required, the Division shall so advise the petmittee by <br />letter and the report shall be submitted vithin 180 days. <br />i/ - This parameter is subject to "Noncompliance Notification' <br />requirements of Part II.A.3.b.v of this permit. <br />~/ - Procedure for determining settleable solids is contained in 40 C£R <br />434.64. The method detection limit for measuring settleable solids <br />under this part shall be 0.4 ml/1. <br />k/ - Should a precipitation event occur which is greater than the 10-year, <br />24-hour event, the permittee shall submit rain gauge or other <br />appropriate documentation in order for an exemption to be claimed. <br />In lieu of such documenation, limitations contained in Part I.A.1(b), <br />shall apply. Documentation shall be reported as an attachment to the <br />Discharge Monitoring Report (DMR) for the appropriate period. <br />Code: i - 17 Date: 1 - 84 <br />