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<br /> <br />A. TERMS AND CONDITIONS <br />8. Post-Mining Effluent Limitations <br />Flow - (A1GD) <br />Settleable Solids (ml/1) 1/ i/ <br />Salinity <br />Beginning immediately and lasting through December 31, 1985 the permittee <br />is authorized to discharge within the limitations specified below, from <br />outfall(s) serial number(s) 010, the discharge from the reclamation area <br />as shown in Figure 1 on Page 17a. <br />a. Any discharge resulting from non-precipitation related causes or from <br />precipitation within any 24-hour period less than or equal to the <br />10-year, 24-hour precipitation event (or snowmelt of equivalent <br />volume) shall comply with the following limitations. <br />Effluent Parameter <br />• <br />pH - (Standard Units) shall remain between 6.5 and 9.0 b/. <br />PART I <br />Page 2f of 17 <br />Permit No.: CO-0027154 <br />N/A <br />0.5 <br />N/A <br />Oil and grease shall not exceed 10 mg/1 b/ in any grab sample nor shall there <br />be a visible sheen. y <br />b. Any discharge caused by precipitation within any 24-hour period <br />greater than the 10-year, 24-hour precipitation event (or snowmelt <br />of equivalent volume) shall comply with the following limitations. <br />Flow-MGD - monitoring only <br />Salinity - monitoring only <br />pH - (Standard Units) shall remain between 6.5 and 9.0 b/ <br />011 and grease shall not exceed 10 mgll b/ in any grab sample nor <br />shall there be a visible sheen. <br />c. 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 surface <br />runoff. <br />• <br />d. These limitations shall apply to discharge from reclamation areas <br />until ttie performance bond issued [o the facility by the <br />appropriate S`tCRA authority has been released and the Division <br />approves inactivation of the discharge point. <br />Footnotes - See Pa[t 1.A.13 <br /> <br />Discharge Limitations <br />Maximum Concentration <br />Daily Max. b1 <br />Amended y' ~r ( ;~ <br />