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• <br />PART I <br />Paee ~a o: 19 <br />Permit 60,: CU-0038024 <br />A. TER:'S Ah'D CO\DITIO'~S (Continued) <br />7. Footnotes <br />a~ This limitation. shall be determined by the arithmetic mean of a <br />minimum of three samples collected in separate calendar weeks <br />during a 30-day consecutive period with a minimum of 20 days <br />occurring between the first and last sample da}•s. <br />~/ This limitation shall be determined by a single properly preserved <br />sample as required under monitoring requirements-Savple Type. <br />c/ Monitoring is required only during periods of discharge. If "no <br />discharge" occurs, [his shall be reported at the specified <br />frequency. (See Part B) <br />d/ Should a discharge occur due to snowmelt or a rainfall event, <br />-' sampling of all parameters shall be done as a minimum a[ the <br />beginning and at the end of the discharge. <br />e/ See definitions, Part S. <br />• i/ When the measurement frequency indicated is quarterly, the samples <br />shall be collected during March, ,tune, September and December if a <br />continual discharge occurs. If the discharge is intermittant, then <br />samples shall be collected during the period that discharge occurs. <br />g/ Salinity shall be measured as Total Dissolved Solids (TDS) or <br />electrical conductivity where a satisfactory correlation with TDS <br />has been established to the satisfaction of [he Water Quality <br />Control Division, based or, a ainimum of five (5) samples. Saaples <br />shall be taken at the permitted discharge po rt. <br />h/ Salinity shall be sampled on a monthly basis until six samples have <br />been analyzed. Thereafter, monitoring shall continue on a <br />quarterly basis. Following submittal of [he first six months of <br />data, the Division shall determine eligibility of a waiver of <br />numeric limitations based on salt-loading. If a waiver is not <br />granted, the permittee has an additional six months to submit a <br />report addressing salt removal in accordance with Regulations <br />3.10.0-3.10.5 and Appendix A. <br />i/ Procedure for determining settleable solids is contained in 40 CFR <br />434.64. The method detection limit for measuring settleable solids <br />under this part shall be 0.4 ml/1. <br />j/ Should a precipitation event occur which is greater than the <br />10-}'ear, 25-hour event, the permittee shall submit rain gauge or <br />• other appropriate documentation in order for an exemption [o be <br />claimed. In lieu of such documentation, limitations contained in <br />Part I.A.l.b., shall apply. Documentation shall be reported as an <br />attac?:.~ent [o the Discharge Ptunitoring Report (DMR) for [he <br />appropriate period. <br />