Laserfiche WebLink
COLOR; IDO DEPARTb1ENT OI• P(iBL1C HF_.ILTH:Ir`iD E:VV/RO:ViL1E:\T, lti'ater Quchn Control Drvuion <br />;i(!IlUrtu. e' - ,~I t+rendnrert .\4r. 1 Pa,~re ). Permit ,Vo. CO-0000?2l <br />3 ~~'arer Ounlin~ &t•ed E(lluent Lirmtntinns rill si.c of the neu~ outfalls discharge to .Sage Creek. D,-v Creek or <br />• rf+eir tributaries idl of wlac.@ ore rrbanarv ra rl!e 'r'rrnlpu Rh er. 73:ese writers ar: wa.4irt segme~r (? ,;f the <br />S'ampn Rrver pub-b<tsm of the Upper Colorado River hrrsm. Tus segment has no nictnls nr aquarfr life <br />srnmiards other thmi pH. Sage Creek. Drv Deck and tnbuturies Nerve an«e turd chronic low Jiorvs of zero <br />The mi.aimum rhsrmrce from these outfalls to the Yar.!pa River is ten miles. Tile }'an!pn River D: the vrc:ntfv has <br />a su6stmttinl Jloa that would dilute any flaw from segment 1?. Ott this basis. a is very ~udikely tint these <br />dischnrges could unpnct the Yampa River. Therefore, [he Divisiart has determined that wn[er yunliry based <br />effluent linutarions ,Indrer than pFQ are nor nppl:cable jot this nntendment. <br />3 Disarssion of E,(lluenr Lirnun[ions. <br />n) Reeulations (or Effluent Lunilntions: The kegularions jot Effluent Lunirnricrts (~ CCR /002-02) apply to the <br />conventional poilumnts For dtese ougiills, the iimit<taons for Oil and Grease are based on this regulation <br />b) Apylicable Federal Effluent Guidelines and Statdards: 77te federal guidelines which apply to this type of <br />facility are found under 40 CFR 431, titled Coal b4ining Point Sorrrce E((lrrenr Grrideline~. ~7re limitatrons <br />which apply ore: <br />Table VI-3 -- Federal Standards (40 CFR 434) <br />Parameter Limitations <br />30 Day AvR Daily ttifax. <br />pH, s. tr. (mininttrm -maximum) ---6.0 - 9.0--- - <br />Total Suspended Solids, mg/P" 35 70 <br />Total Iron, mg/?* <br />• BAT' * 3.5 <br />NSPS*** 3.0 7.0 <br />6.0 <br />Settleable Solids, mP/V' N/A 0.5 <br />• these paramerrrs subjeu ro 8urden of PraaJ Requirements. see nest serrion <br />•• Best Araifablr Technology -applies to those /uatuies already consmorred <br />••• Nrw Source Performance Standards -applies ro those fanliri es consrrurred afrer Std/8-i <br />Allernnte Limitation Burden ojProof Requirements: fn conformance with 40 CFR 434.6?, the permittee has <br />rite burden of proof tivhen requesting relief from total suspended solids (TSS), total iron and/or settleable <br />solids limitations, as appropriate. Tice intent of this regulatiat is to afford relief only when needed due to n <br />volume of venter generated by a specific storm event, it is not intended to be automatically applied to all <br />dischnrges caused by precipitation, nor to be used to discharge volumes in excess of t/tat ;ertera[ed by the <br />storm event. On !Iris basis, reliejsftall be granted only }vhen necessary and shall trot be grunted when [he <br />permittee has control over the discharge, enabling them to meet the primary limitations. The permi«ee <br />should endeavor to meet tf•,e primary limitations whenever possible. All manual dewatering of ponds [hat <br />ore eyuipped with automatic dewatering rystencr must meet TSS and rata! iron limitations. /ja pond has <br />only manual dervatertng capability, relief is available only to the extent required to regain necessary <br />stability and capacity. The Division shall have final authority in determining whether relief is granted. As <br />parr of this determination. the Division shall evaluate whether the permirtee could have controlled t/te <br />discharge in such n rnnnner tint primary limitations could hove been met. <br />/) Fnr nu.n~ to waive TSS and total iron, li.mrtatio.ns. « is necessary ro demonstrate that disclrn,-ge <br />occurred wuhin 43 hours niter measurable precipuation has stopped. To waive settleable sohds <br />hmitnrions, it is necessary to prove that dachnrge occurred widtin 43 hours offer preciptation greater <br />than the 10-vear, 24-hour event has stopped. <br />r1 <br />