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PERAIIT, PART 1 <br />Paee IC ul 13 <br />Permit Nu. CO-003268 <br />3. EI'lluenl Limitations (Outfall 00~ <br />(a) Beginning immediately and lasting through December 31, 1998, the permittrz is authorized to discharge from <br />Outfal 1006. <br />In accordance with the Water Quality Control Commission Regulations for Effluent Limitations, Section 10.1.3, <br />and Stale Discharge Permit System Regulations, Section 6.9.2, 5 C.C.R. 1002-2, the permitted discharge shall not <br />contain effluent parameter concentrations which exceed the following limitations specified below. <br />Effluent Parameter Discharee Limitations <br /> <br /> 30-Dav Ave p/ Dailv Max cl <br />Flow, MGD 1.98 N/A <br />Total Suspended Solids, mg/1 35 70 <br />pH, s.u. (minimum-maximum) N/A 6.5-9.0 <br />Oil and Grease, mg/1 N/A 10 <br />Total Dissolved Solids, mg/I g/, b/ N/A Repoli <br />Iron, potentially dissolved, mg/1 0.89 Repoli <br />Manganese, potentially dissolved, mg/I <br />unti112/31/94 Report Repoli <br />as of 01/01/95 0.15 Repoli <br />Sulfate, mg/I <br />untill2/31/94 Repoli Repoli <br />as of 01/01/95 N/A 738 <br />Whole Effluent Toxicity, Chronic n/ <br />through 12/31/96 N/A Repoli <br />beginning 01/01/97 N/A See Pali I.A.3.(b) <br />There shall be no discharge of floating solids or visible oil sheen f/. <br />(b) Whole Effluent Toxicity -Chronic Lethality Limitation <br />Begining 01/01/97 and lasting through 12/31/98, there shall be no statistically significant difference in IeWality <br />(at the 95'% confidence level) betwcen the control and any effluent concentration less than or equal to 34~, <br />effluent. Such limitation shall apply as a daily maximum. <br />4. Burden of Proof Requirements <br />The permittce shall have the burden of proof when requesting relief from total suspended solids (TSS), total iron <br />and/or settleable solids limitations. Documentation proving the oocutrence of a precipitation event or snowmelt is <br />required to waive TSS and total iron limitations. Documentation proving the oceurrence of greater than a 10-year, <br />24-hour event or equivalent volume is required to waive settleable solids limitations. The Division shall determine <br />the adequacy of proof. <br />