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n <br />U <br />PART I <br />Page lf(1) of 19 <br />Permit No.: CO-0027154 <br />S. Effluent Limitations for Outfall 001 <br />Beginning immediately and lasting through June 30, 1991, the permittee is <br />authorized to discharge within the limitations specified below, from <br />outfall(s) serial number(s): 001 <br />Effluent Parameter <br />Flow, (MGD) <br />Total Suspended Solids, (mg/1) <br />Total Recoverable Iron, (mg/1) <br />Total Recoverable Manganese, (mg/1) <br />Electrical Conductivity, micromhos/cm <br />Discharg e Limitations <br />Mazimum Concentration <br />30-Day Avg a/ Daily Maz c/ <br />Report Report <br />35 70 <br />1.0 2.0 <br />Report Report <br />6485 N/A <br />pH - (Standard Units) shall remain between 6.5 and 9.0 c/. <br />011 and Grease shall not exceed 10 mg/1 c/ in any grab sample nor shall there <br />be a visible sheen. <br />Any discharge or increase in the volume of a discharge caused by <br />• precipitation within any 24-hour period less than or a ual to the <br />10-year, 24-hour precipitation event (or snowm t of equivalent <br />volume may comply with the following limitations subject to burden <br />of proof requirements described in Part I.A.7. <br />Effluent Parameter <br />Flow-(MGD) <br />Total Recoverable Iron (mg/1) <br />Total Recoverable Manganese (mg/1) <br />Electrical Conductivity, micromhos/cm <br />Settleable Solids (ml/1) j/ <br />Discharge Limitations <br />Maximum Concentration <br />30-Day Avg. a/ Daily Maximum c/ <br />Report Report <br />1.0 2.0 <br />Report Report <br />6485 N/A <br />N/A 0.5 <br />pH - (Standard Units) shall remain between 6.5 and 9.0 c/. <br />Oil and grease shall not exceed 10 mg/1 c/ in nay grab sample nor shall there <br />be a visible sheen. <br />See part I.C. for Footnotes <br />• <br />Code: 1 - 8 Date: ~~ - di <br />Amended 03/19/87 <br />Amended 12 21 88 <br />Amended 10 27 89 <br />Amended g~28/g0 <br />Effective 12/10;", <br />Effective g~_, . <br />