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PAR7 I <br />Page lb of 19 <br />Permit No. CO-0000213 <br />J <br />A. TERMS AND CONDITIONS (Continued) <br />b) Effective during periods of precipitation leas than or equal to the <br />10-year, 24-hour event for this facility. (Continued) <br />Effluent Parameter <br />Discharge Limitations <br />Maximum Concentration <br />Daily Maximum c/ <br />Flow-(MGD) N/A <br />Settleable Solids (ml/1) ~/ 0.5 <br />Salinity N/A <br />pN - (Standard Unite) shall remain between 6.5 and 9.0 c/. <br />011 and grease shall not ezceed 10 mg/1 c/ in any grab sample nor shall there <br />be a visible sheen. <br />c) Effective during periods of precipitation greater than the 10-year, <br />24-hour event for this facility. <br />Any discharge or increase in volume of a discharge caused by <br />precipitation within any 24-hour period greater than the 10-year, <br />24-hour event (or series of storms or snowmelt of equivalent <br />volume) may comply with the following limitations instead of <br />limitations of item a) and b) immediately preceeding. <br />Flow-(MGD) - monitoring only, per Part I.B.1. <br />Salinity - monitoring only, per Part I.B.1. <br />pH - (Standerd Unite) shall remain between 6.5 and 9.0 c/. <br />Ofl and grease shall not ezceed 10 mg/1 c/ in any grab sample nor <br />shall there be a visible sheen. <br />d) Additional conditions-effective at all times. <br />There shall be no discharge of floating solids or visible foam in <br />other than trace amounts. The discharge shall not contain any <br />sanitary sewage or other pollutants not associated with active <br />mining operations. <br />See Part I.C. for Footnotes <br />. Code: 1 - 8 Date: 1 - 84 <br />7-6-4 <br />