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COLpR.lbO DEY.iftl;trh OTOF ttf_•g1f rt"nrrr Quuliry'('onrrol DAninn ~ ~ ~ ~~~- - _ <br />Ruria,rtlr- Pugc l3, Prrmir .Nu. CO-OOJdO.rR - <br />tlenrorestrated drat indigenoecr aquatic life species in Ar•equa Gulch are arlequatel}•proteclerl at the ambient water qualrh• acct! the <br />FYnter Quali[}• Control Corrm+ission adopted site-specific metnl standarrs far alunrnrunr; rir[n:gariese, acrd sine in Rrequa Gulch is <br />Septernher 19>8, Tfte final metals standards forahurriaarrt. were based on.recalculatiort ojaquatic life criteria base<l on the <br />delineation of the aquatic carrnumity• tkrough the 1998 UAA. The combination of the U~td curt! the recalculation demorrstratec <br />that tke metals stanrards for afuminunr protect the existing aquatic Life that can he expecterLiu Arequa G:rlch. Suh.cectioa <br />61.8(2J(h)(i)(Ej of the S{ate permit regrrlatiuns (3 CCR !002-61) states iri i•eleroant part [Trot: <br />'Zlntits on whole tfflrrent toricin• ore oat necessary' where the Divisiwt demonstrates in die ra(iunale of dre permit using tJre <br />pY«CCdrlreS 117 StrGSPC/IOII (bJ(iJ(B1 OJ dlfs Se('hnJl, IIt[Id CIICtnlr[!I-Spf'ClflC 11AItts for the eJjlucnr are sufficient u) attain curt! mrrintuirr <br />upplitrrhlt numeric one{ nrrrrrrtirc• n•aur qu~l{h• §tundnrds. " <br />The TlEJound that nG«rrnrtrn+ was the paranu'ter caasnrg taririn• in the routine {YET tests, which use species not eapec•rtd «, he <br />fotntd tn,Areyr[a Gtdch. <br />Lt this cnsc, the Cotnmiss{on has ndnptedsite-spec{fir xater quality struuF[rrrts for dre parumettr ofromecrn idestt{Jied in rGt TIF. <br />~(u(tuuiman) bcu'ed nrr sttrdles dart iruliaur th[trsptaies 6r dregtrct Gtdc•/r rc111 he protected et! dre level ofthe stnndurd. Lire.+peck•c <br />used in die {{E T rect are enrn-e sensitive than the inrligeum+.c slrec{es mul fn•thtr IVE T testhrg using Cerioclaphnin um/ /Lr/read <br />nrnururrs wil! not hc• irulicatire~J•<ra c•.rectdaute ojtlre narr;uire staudetr'd. Therefirre. CCR Y cr'itl not he required to comluct IF'f:'1' <br />[esdag ire rhr rtr+esvulpcrrnlr. <br />~. Smrm Ii'urcr <br />- Smrrnwaterhernittingrerluirenrents.,(rrdischurge.cc•oasis!ingnfrrom-eJX7rmirtguide~iuestarncrater(.rtonnn•ntervrutcnrrrrdln~ <br />40 CFR 4d(1/, bare been and »il/ cuutinur to he inrplenrruted tlrruugh tlrr Geuera! Sturm {Yatcr Permit Na. C'OR-fl4(111op• <br />Certificutior: tVo. COR=040(144. <br />G. Best r~![ningvmeat Pruc•ticee <br />C'CcC F'slrull take u1J reacunrrhle prrcautions u, preeetu an}• pone .cuuree ilisehnrgc into su~tce se[rters q(Ihr State z•.reept ns <br />uuthori_edlhrnegh the texas acrd c•orulittons that bare hreu nscigned to speciJc• nutlidls thin /rrrve been irlentiJFrd in [Ire applicuhh• <br />srnrnr scoter permit. <br />CCR {'shall errsrrrr that the ercaratinu, rum•emtat and placcnrrnt of mry' mahrtrils that might he contrurriuaterl with r s anidr or <br />other ernironmentaT palhrtarrts is carded out in a rnauaer wl:ic•h will «roirl unr rliccharge of polluhuus to srrrf<tce ua[err uJ the <br />Snrte. <br />7. Ecortondc Reaeonah/mess Evahauinn: Section 23-8-503!8) of tlrt revised {.hate 19831 Culorada F{'nter Qualin• Ccmtrul Act <br />recprirerl the Oir{si«n to "deterneirre a Irether nr trot am or all of the water qurrlitrstandarrl fiaxed eJl7uent linrita[imu are rc•<rsunubA <br />relntert to dre ec'orronr{c: eav{rnameritat, public heattlr arirl entrgv impacts to rlrrpubt{c and «fTerted persons. coal m•e {rt•lirrthrruncr <br />rf tfre policies set ftrrth in sections 13-8-192 mrrl ?3-8-l04." <br />The Regulations for thz: State Di_schctrbe Perini[ Srstern,'S CCR 100?-61, fiirthcrdcfne this reyerirentertl under ScK'tiort 6l.I1(a) and <br />sun[: "FY'hereecrrrntniaenrirmmental.pub/ic•Gea/tG,arufeirer~•iinpactstothepublic andaJjcctc~lpersoras]rnreheerirunstdrred <br />{rr tht classifications oral suntrhtrds setting process, permits svr{tten to meet the strardards n:rrv be presumed to hrn•c urkcnr into <br />c'nrrsidtrntiorr ecorroenic factors unless: <br />it A nex• ptrnit is issued u•Itrre the discharge was rut in eristtnc•r ru the time oftlre classification mul standards nrlernakirr„ nr <br />ii) In thecaceofacantinuingdischarge,add{tiunalirrfornurtirnrnrftirtarshttrcemitrgeilthatwerenotantiripaterlorrnnsidrred <br />ar d7e tirirt ojllre clasrificatiar and stanrlurds rulernaking. " <br />The cn'ahmtinrt for tGis ptrrnit s/taps' !liar [Iris fttt'ility ryas in existence nt the time of x•ater yeealiN standards rrlemakhrg. <br />.4c/ditiaurlltt bin'cd arm•ailahle dcrki, the restdrirrg p•ttttr ytutlit}' standarll•based eJJluent linutntirnrs are determi,rcd rn he <br />reasnnahh'rrtnred to the ecunonur, envirorunentnl• ptrhlic henlih, ant{ energn• Fmpners to thepu~lic ant! affected persons. Ifrlrc <br />Pernrittet disagrees with dris frnrling, pursuant to ~ CCR 1002-C1. l 1(b)/iiJ the Pernrittee should srihmU «/I pertinent irtfirrnu«inn u, <br />the Disicion during the public rwticr period. <br />8. Antibuckslidin2 <br />TlreeTahtnlinufortlrispernrltirrclttdednrei•ierr,ftrantihneA.clirlirrgpursuarrttuSCCR1002-hLlOr~(iil. Tlri,cScetrorralloxti/or <br />less stringent permit limitmions in strbsequeut permits for.-0requa Gulch when n pcrnit limitation i.c baser! on enter gratlin <br />