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PART I <br /> Page 2 of 20 <br /> Permit No. : CO-0000396 <br /> A. TERMS AND CONDITIONS - SEE ANY ADDITIONAL REQUIREMENTS UNDER PART III <br /> During the period beginning immediately and lasting through June 30, 1987, <br /> the permittee is authorized to discharge from outfall(s) serial number(s) : <br /> 002, 003, 004, 005, and 019 the outfalls from the underground mines as <br /> shown in figure 1 on page .19. <br /> 1. Effluent Limitations (Effective at all times) <br /> EFFLUENT PARAMETER DISCHARGE LIMITATIONS <br /> Maximum Weight Maximum Concentration <br /> kg/day (lbs/day) mg/l mg/l <br /> 30-day avg. a/ Daily max. b/ 30-day avg. a/ Daily max. b/ <br /> Flow N/A N/A N/A N/A <br /> Total Iron N/A N/A 1.0 2.0 <br /> Total Suspended ' <br /> Solids, N/A N/A 35 70 <br /> Salinity N/A N/A N/A N/A <br /> Oil and Grease shall not exceed 10 mg/l b/ in any grab sample nor shall <br /> there be a visible sheen. If a visible sheen and/or Floating oil is <br /> • observed, the permittee shall take corrective action immediately. <br /> The pH shall not be less than 6.5 standards units nor greater than 9.0 <br /> standard units b/. <br /> a/, b/ - See Part I.A.4.c. <br /> • <br /> AMENDED q <br />