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COLORADO DEPARTMENT OF IN'.Ai•'f}I <br />Water Quality Control Dl.viston <br />Rationale -Page 5 <br />• Fermit No: C(rt1033553 <br />DISCUSSION: <br />• <br />1. Total suspended So11Gs - I'.P.A. promu]Itatcd ISA1' tr{•,nlai'~-ns uu .':ovembrr <br />26, ]9A2, but BCT (IL~t;t (:ru•;ontion:tl 1'u~,lut.ml Conttnl Tcci~nn:r,pc; is <br />being reserved pendSu!•, iinallzatiun of i(IP.'r, BC'f cnct. metJiod~tir..~y. <br />Therefore, BPT shall af•ply. the SF.5 limit.ttion is r,n: a;~plic.^.!lc nur:uant <br />to Section 10.'.3(3) of the Statr_ {tc>;ulatioca fer }:fiiucnt 1.U•.SL-rtiuns, <br />which states that when L:PA i a effluent li~aitatlore n~ an imiustry, tF.c• <br />federal limitations shrill take precedence. <br />2. Alternate Limitations - As indicated in ot!!er section:. of thr rationale, <br />some effluent limitations for outfall OU1 arc or arc not effective, <br />dependent on occurrences of precipitation. Pages la and 16 of fire permit <br />indicate when specf.fic ]iritations apply. ]n order f.or the p•amittee to <br />claim a "storm exemption" from the total :tur:penderl solids and tat:,l iron <br />].imitations, documentation of thr_ eli£ible ;:Corm event m•~st br submitted <br />to the division along with tL•~• Cpl+roprintc r:icchargc tennitori:~y; report <br />(DMR). <br />3. Materials Containment flan -Pages 6 and 7 of the per^tlt dc•scrihe the <br />Materials Containment Flan (}iCF) which is r. reGuitet;c..;t of al'. <br />permittees. If a Spl]1 Precentfon Con[rul and Counu~rme3surc (S. CC) F'_an <br />has already been submitted by the permittcc and appruced by the tliv!6ion, <br />submittal of an annual upr!;.tt to this plan trill satisly the ~;Cf <br />requirement. <br />4. Reopener Clause -Phis here!t may 6e reopened and modified as discussed in <br />Part IL.B.S if [here. ie. a s!Pnificant change in stE'to nr fe:ieral water <br />quality regulations, a sign l.:icant change in npcratirt.r at t!•e fr,~ilit_r, or <br />at the request of the pc:;ni t tze. <br />I7c~: }'olr..rr <br />• <br />Upon issuance of tht. ;trnrn~:cvc: ..~..~ ,r.n•.•,r,r'.. :'.~. ~ i+{ .., ••1 .. ., ,.~r..if[ <br />shall supercede tim con'St it:•L}. n: tlv• i~ra'r..it ~:.,:,,•°: ;: ~ , ! l':.::' a•. '. <br />scheduled, to expire t:;trch :;:, ':';C ~ . 'I lie ^c,~ , ~~r.:~i t ; c i.'', ~... ccr:~~ ;~.t ;•e:r,.i: <br />boilerplate pages and fnrmnt. <br />;,, ;~ ,., ~ .t <br />