Laserfiche WebLink
PARTI <br />Page No. 4 <br />Permit No.: CO-0040827 <br />A. DEFINITION OF EFFLUENT LINIITATIONS <br />1. Effluent Limitations (Continnedl <br />a. Outfa11001 (Cont.) <br />Any dischazgc or iacrease in volume of a discharge caused by precipitation within any 24-hour period heater than the 10- <br />veat• 24-hour event (or series of storms or snowmelt of equivalent volume)1~ comply with the following limitations subject <br />to burden of proof requirements described in Part I.A.2. <br />Effluent Parameter Discharee Limitations <br /> 30-Dav Ave Daily Max <br />Flow, MGD Report Report <br />Total Suspended Solids, mg/I Report Report <br />Total iron, ug/l Report Report <br />Settleable Solids, ml/l N/A Report <br />Oil and Grease, mg/l N/A ] 0 <br />pH, s.u. (minimum-maximum) N/A 6.5-9.0 <br />Total Dissolved Solids, ton/day (tons/yeaz) Report 1 (365) <br />b. Outfall 002 <br />Effluent Parameter Discharee Limitations <br /> 30-Dav Ave Daily Max <br />Flow, MGD Report Report <br />Total Suspended Solids, mg/l 35 70 <br />~° Total Iron, u <br />. <br />- ~ <br />f : 3500 7000 <br />; <br />,. <br />'~~<-.Oil aad Grease, mgll N/A 10 <br />pH, s.u. (minimum-maximum) N/A 6.5-9.0 <br />Total Dissolved Solids, ton/day (tons/yeaz) Report 1 (365) <br />Whole Eft7ueat Toxicity, Chronic ~ N/A Report <br />2. Burdea of Proof Requirements - Outfall 001 <br />The permittee has the burden of proof when seeking relief from total suspended solids (TSS), total iron and/or settleable <br />solids (SS) ]imitations. Outfall 001 is eligrble for relief, providing the exceedence is caused by precipitation Outfal! 002 is <br />not eligble. <br />Relief maybe granted for each discharge occtarence only when necessary and shall not be granted when the permittee has <br />control over the discharge. The pemuttee should endeavor to meet the primary limitations whenever possible. The permittee <br />will need to show that exceedence of the applicable limitations was caused by precipitation and no other source and that the <br />dischazge. was beyond thew control. <br />a) For raiafall, to waive TSS and rota! iron limitations, it is necessary to prove that discharge occurred within 48 hours after <br />measurable precipitation has stopped. In addition, to waive settleable solids limitations, it is necessary to prove that <br />discharge occtmed within 48 hours after precipitation greater than the 10-yeaz, 24-hour event has stopped <br />b) For saowmelt, to waive TSS and total iron limitations, it is necessary to prove that discharge occurred within 48 hoots <br />after pond inflow has stopped. ht addition, to waive settleable solids limitations, it is necessary to prove that discharge <br />occurred within 48 hours after pond inflow volume greater than the 10-year, 24-hour event has stopped. <br />Should a precipitatioa even[ or saowmett occur, the pemattee shall submit adequate proof in order for an exemption to be <br />claimed Said proof shall be submitted as an attachment to the Discharge Monitoring Report (DMR) for the appropriate <br />period. The Division shall detemilne the adequacy of proof. As part of this determination, the Division sball evaluate <br />-- whether the permittee could have controlled the dischazge in such a manner that primary limitations could have been met. All <br />manual dewateting of the poad(s) shalt meet TSS and total iron limitations. <br />Last Revised 8!28/2003 <br />