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< < <br />• <br />C. FOOTNOTES (Continued) <br />PART I <br />Page 3 of 19 <br />e/ - Definitions of Sample Type (Continued) <br />6. Aa "ia-situ" measurement, for monitoring requirements, is defined <br />as a single reading, observation or measurement taken is the field <br />at the paint of discharge. <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). 'w'here <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 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 sis sampled. Thereafter, monitoring shall continue on a <br />quarterly basis. Following submittal of initial sis sets of mon[:tly <br />data, the Division shall determine :+hether t~e permittee is reouired <br />to submit a report addressing salt removal in accordance crith <br />Regulations Far Implementation of the Colorado 21ver Sal_aity. <br />Standards Through the NPDES Perait Program 3.10.0. If the sal_aity <br />report is required, the Division shall so advise the permittee by <br />letter and the report shall be submitted within 180 days. <br />i/ - This parameter is subject to ":7oncompliance Yotification" <br />requirements of Part II.a.3.b.v of this permit. <br />j/ - Procedure for determining settleable solids is contained Sa 40 CFR <br />434.64. The aethod detection licit for measuring settleable solids <br />under this ?art shall be 0.4 ml/1. <br />k/ - Should a precipitation event occur which is greater t".an the_0-year, <br />24-hour event, [he permittee shall submit rain gauge or other <br />appropriate documentation is order for _n eseap con to be c'_aimed. <br />In lieu of such documeuat_on, linitat_ons contained is ?art :.1.1(b), <br />shall apply. Documentation shall be reported as an attac`•'eut to t`:e <br />Discharge :".onitoriag 3eport (D:"Q) for the appropriate period. <br />• Code: i - 17 Date: 1 - 94 <br />