Laserfiche WebLink
<br /> PARTI <br /> Page No. 4 <br /> " Pemtit No:: 00.0038342 <br />• Parameter Limitations <br /> <br />Maximum Concentrations • <br /> 30-Dav Averaee 7-Dav Averaee Daily Maximum <br /> Flow, MGD Report NA Report <br /> Total Suspended Solids (TSS), me,Jl Report NA Report <br /> pH, s.u. (minimum-maximum) NA NA 6.5-9.0 <br /> Oil and Grease, mg/1 NA NA ] 0 <br /> Total Dissolved Solids, mg/l I{eport NA Report <br /> Settleable Solids, ml/1 NA NA Report <br /> Total Iron, ugll Report NA Report <br /> b. Outfa11002 - <br /> Effluent Parameter Effluent Limitations <br /> Maaimum Concentrations <br /> 30-Dav Averaee 7-Dav Averaee Daily Maximum <br /> Flow, MGD Report NA Report <br /> Total Suspended Solids (TSS), mg/I 35 NA 70 <br /> pH, s.u. (minimum-maximum) NA NA 6.5-9 <br /> Oil and Grease, mg/l NA NA 10 <br /> Total Dissolved Solids, mg/1 Report NA Report <br /> Whole Effluent Toxicity, Chronic Lethality NA NA Statistical Difference or <br /> IC25>IWC <br /> Total Iron, ug/I 3,500 NA 7,000 <br />2. Whole Effluent Toxicity -Chronic Lethality Limitation - Outfall 002 • <br /> Beginning on the effective date and lasting through the expiration date, for outfal1002, there shall be no statistically <br /> significant difference in lethality (at the 95% confidence level) between the control and any effluent concentration less than or <br /> equal to 100 % effluent. Such limitation shall apply as a daily maximum. <br />3. Alternate Limitation Burden of Proot Requirements <br />The pemuttee has the burden of proof when seeking relief from total suspended solids (TSS), total iron and/or settleable <br />solids (SS) limitations, as appropriate for outfalls containing surface runoffwater. Outfall 001 is eligible for relief from TSS, <br />total iron and SS, as applicable. Relief maybe granted for each dischazge occurrence only when necessary and shall not be <br />granted when the permittee has control over the discharge. The permittee should endeavor to meet the primary limitations <br />whenever possible. <br />For active outfalls: For rainfall, to waive TSS and total iron limitations, it is necessary to prove that dischazge occurred <br />within 48 hours after measurable precipitation has stopped. 1n addition, to waive settleable solids limitations, it is <br />necessary to prove that dischazge occurred within 48 hours after precipitation greater than the 10-yeaz, 24-hour event has <br />stopped. For snowmelt, to waive TSS and total iron limitations, it is necessary to prove that dischazge occurred within <br />48 hours after pond inflow has stopped. In addition, to waive settleable solids limitations, it is necessary to prove that <br />discharge occurred within 48 hours after pond inflow volume greater than the 10-yeaz, 24-hour event has stopped. <br />b. For Host-mining outfalls: For rainfall, to waive settleable solids ]imitations, it is necessary to prove that discharge <br />occurred within 48 hours after measurable precipitation has stopped. For snowmelt, to waive settleable solids limitations, <br />it is necessary to prove that dischazge occurred within 48 hours after pond inflow has stopped. <br />See Part I.C. for Definitions. <br />• <br />IlVDperBP.doc <br />Revised 06/09/04 <br />