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PART I <br />Page No. 5 <br />Perntit No. CO-0032115 <br />.. DEFINITION OF EFFLUENT LDrIITAT10NS <br />1. Effluent Limitations (continued) <br />(b) Oulfall 012 (continued) <br />Any dischazge or increase in volume of a dischazge caused by precipitation within any 24-hour period ¢reater than the l0-vear. <br />24-hour event (or series of storms or snowmelt of equivalent volume) ~ comply with the following limitations subject to <br />burden of proof requirements described in Part [.A.2. <br />Effluent Parameter <br />Discharee Limitations <br />30-Dav Ave <br />Daily Max <br />Flow, MGD Repon Repott <br />Total Suspended Solids, mg/P Report Repon <br />Total Iron, mglP Repon Repon <br />Settleable Solids, mP/P N/A Report <br />pH, s.u. (minimum-maximum) N/A 6.5-9.0 <br />Oil and Grease, mglP N/A 10 <br />(c) Outfalls 001. 002, 005. 009, 011, 013, 015, 016, 017 and 019 <br />PRIMARY LIhIITATIONS <br />Effluent Parameter Discharee Limitations <br />30-Dav Av¢ Daily Max <br />Flow, MGD Report Report <br />Total Suspended Solids, mglP 35 70 <br />Total Iron, mg/P 3.0 6.0 <br />Settleable Solids, mP/P N/A Report <br />pH, s.u.(minimum-maximum) (009, 011, 013, O15, 016, 017, 019) NIA 6.5-9.0 <br />pH, s.u.(minimum-mazirtmm) (001, 002, 005) <br />June -September N/A 6.5-9.5 <br />October -May N/A 6.5-9.0 <br />Oil and Grease, mg/P N!A 10 <br />Whole Effluent Tonicity, Acute NIA LCD > 1009 <br />ALTERNATE LIIvII'fATIONS <br />Any dischazge or increase in the vo]ume of a dischazge caused by precipitation within any 24-hour period less than or equal to <br />the 10-veaz. 24-hour orecipitatioa event (or snowmelt of equivalent volume) may comply with the following limitations subject to <br />burden of proof requirements described in Part I.A.2. <br />Effluent Parameter <br />Flow, MGD <br />Total Suspended Solids, mg/ P <br />Total iron, mg/P <br />Settleable Solids, mP/P <br />pH, s.u.(minimum-maximum) (009, 011, 013, OIS, 016, 017, 019) <br />pH, s.u.(minimum-maximum) (001, 002, 005) <br />June -September <br />October -May <br />Oil and Grease, mg/P <br />Whole Effluent Toxicity, Acute <br />Discharee Limitations <br />30.Dav Av¢ Daily Max <br />Repon Repon <br />Repon Report <br />Report Report <br />N/A 0.5 <br />N/A 6.5-9.0 <br />N!A 6.5-9.5 <br />N/A 6.5-9.0 <br />N/A 10 <br />N/A LCD > 1009 <br />See Part I.C. For Definitions. <br />Amendment No. 1 Issued MAY ~~~ ~7 Effective -~~(~ ~ ' ~OQ7 <br />