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P.,RT I <br />Page 3 of "19 <br />• <br />C. FOOTNOTES (Continued) <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). F'here <br />based on a minimum of 5 samples, the permi[[ee demonstrates, to Che <br />satisfaction of the Water Quality Control Division, [fiat the level of <br />TDS in the effluent can be calculated based upon the level of <br />electrical conductivity, the permittee 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. Folloving submittal of initial six sets of monthly <br />data, the Division shall determine vhe[her tf~e perms[tee !s required <br />to submit a report addressing salt removal in accordance vi[h <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, [he Division shall so advise the perms[tee by <br />letter and the report shall be submitted within I80 days. <br />i/ - This parameter is subject to "Noncompliance Notification" <br />requirements of Part II.A.3.b.v of this permit. <br />• <br />~/ - Procedure for determining settleable solids is contained in 40 CFR <br />Code: i - 17 Date: 1 - 84 <br />434.64. The method detection Limit Eor measuring settleable solids <br />under this part shall be 0.4 ml/1. <br />k/ - Should a precipitation event occur wliicli is greater than the 10-year, <br />24-hour event, [he permittee shall submit rain gauge or other <br />appropriate documentation in order Eor an exemption to be claimed. <br />In lieu of such documenation, limitations contained in Par[ I.A.1(b), <br />shall apply. Documentation shall be reported as an attachment to the <br />Discharge Monitoring Report (D*tR) for the appropriate period. <br />