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roGO .. ...::.. - ..:.:..... ,. <br />RIDn bEPAR"f•LfFNP[JF'!!h.'IT!! iti»~a [hrnliq~Con/rot Dnisrorr ~ - -~ <br />Rrsrlonrsfe - Prsge J, Permit .lb. (Y)•U0136J3 - <br />The sprbrgcallectign s}steer was irrstallerl belgn• u portion ofthe riregera Gulch overbru•ilen storage urea before derelupnrent. <br />R parurts gravel Inver anrt geotertile war tnsudled to separate the spring collection system frrim the material to he plncerl in <br />the grrqua Ga/ch oyerhurrleu storage area including the retvcated Carlton rLti// tailings. The ftrct bench and slope q/'Nee <br />Arequa GutcJr overhurrlen storage area n•as reckrimeil irr 1997. This reclanratiat area was directly above a .rigrrifrcruu <br />portion ~f the sprurg collection svstenr. Reclanrativn oftlre secant lift slope occurred iu 1999 mrd 200Q The .recorrJ !r'j <br />reclnm[uion extends overthe upgradient part ofNre sprurg collection ststenr. During 2001 and thefirst haljoj200?, topsoil <br />and vegetation !rave been removed fi•mrr the recluirnerl lower hench uml art irceut slope in prcparatiolr Jor ecteirsiar vJ71rr <br />Plurse IV~i VLF. 77rere x•ill he rto firrd~er placement ofaverburden in the,4reyna Gtdch overhurden storage hrea that orerlnrc <br />dye spring evllectiar system. Witlr rlre cover of tailing noel overhurrlen, meiearic Hafer can no lmrger nrLr directly +rith the <br />spring sec7)age. Seepage, if it were to nccta•Jranr the relrunted Carlton Mill tailurg may' also he coUecterl. Given thc• high <br />degree oJ•c•omprrc•tiorr oftlre relatively fine tailing. secpugr from these tuil6rgs is not expected to occur. <br />VLF-The T'LEis rlowvrgradient olthe vverburdrn storage area. The VLF is designer!, pennitled. Cortstrucled. mul ciperuterl <br />to isolure leric•l+soleetiar of CC& V k heneficicrtiar nprrariunjroru th+ environureut irrchrrliug die springcollection slstevn curd <br />underdrains.' lsolnrtnn is ej(ectuated by using rt midti-layer liner (i.e..-ranpacterl cloy read svnrhetic urateriuls) .+;r.,tr•nr. <br />h'rerprent nrouitorirrg gl'variouc st•.ctrmst uurludrng the spring cnlfectiar system mnl rriulrrdrnirrs. over tlic past sere^ rrm:c ni' <br />T'/.Foperatin/r ca frnr.c tlrec'Lieclh•eness ~ fthc• lirrersys'lent to achieving coleuiun conminrrrent and isolation wirlrin nc~ 1'll•: <br />rT nwrtitoring systen+ [gpru ved ptresuunt 1v C.R. S 3d-3. -!Ol et seq it employed to rns«re proper vper«lion «rd a onlcrirur; ~ n: <br />of nrnteriuG in the' i'LF. The 6ZF' was constructed in art m•ea fi»rrr a hic•h historic mill tailings mere rrmv+ed turd reddrarl <br />rrurrcrials Jran adtcr past aperrrtiuns u•rre rased in dye nppr!rred cnnstrrrcfion. lhereftrr, some trrrc•c canccatratinro' of <br />cv«nide frnnr hisauic operations rrrav he ureus'urrd hrrr theselrace rar+ce+rtrations urc• no[ inrlic•utive ujdrschar,>;c:c /i an+ dye <br />Y•LF. The F'lt' is heirrg erpnnded prrrsumrt ui rrpprorcd permits Jrvnr the ;tliaed Land Rrclamntiorr Roarrl. Grrrrtnr,•, <br />pl«renre•rtt, arty! ennrp«ction nJ•sntl liner fill mrd ins7ellotion oj.cyrrdretic• line'r' nn the_Trst /ifi hetrch mrr/s/upr uJ•dre: Treq«u <br />Gtdc•!r ovrrhurtlrrr storage urea we're con¢rlrted in bare 200?. The VLF Phase lira double liner systerrr nou• orertie> dry <br />urnjnritt• ojthe spring en/ka7inu system, as shown at Figures S rnrd (. Cnrn)iacrrd road sur(nces, cvnstructiat Irnzlnu n arras, <br />rntd rock slopes nJ the Arerput C,ulch orerhrtrde/r storage area represent the remahuler njthc area overlying the sprni~ <br />collection .ctstrnr. <br />the sprurg collection [cud unrlerdruin ststenes luer•e no conncc•tio/r tci ar?e dttit•c mining nre•« (~t• ru•tue ojthe firets~ that dtc•rr is <br />nu leakrrgr frnnr the {'!-F, then are lrrdroingicaflr isnlarrd fi•vnr dre G•essorr Pir, curl nverburderr is rro lnrrger hrirrg plrrrrJ br <br />the drryua Gnlrh Orerburdru Smr«gr.4rr«. ThercJirre, tvuterJluwing through rlreae srsre»s is trot, gire,r the /t/odiJicmir» r <br />Rule, mine' drainage. _ <br />T hr hrlrnr!!ia/6f (/t N+e pu.+t pcrntil fin' DatT dl 0(t f.i tHut +ecrc based un the Part 44f1 Jcrlcrnl e/Jluerrt lintitr«iort gtridcli/rr•s u~rr•e <br />never in eJJect as u result nj'tlre series i~(stut•s set hr the Teller Cmarh• District Court. <br />Given the chrnrges in tl:e operntivn nl'the Cresson Pro)eci in the rn•ea ojthe above-desen!)e•d drainage ss:~tenrs. !/rc> pulict' <br />changes srr our in the rtlodircatiar Rule, and dye jnrt that li»ritmions hosed ntr%•ttera/ eQlueut limitation guidrlnrc•.+;/ur Our)id! <br />O(Ild uc•+~er took rfJirt. the Division is trot inrltidirr, liwit«tinrtc based nn Jederul eJJlueatlt/nitatiorr guirlelirres irr this permit. <br />Stvnn water rlisc•harges fran ourfrdls hr the previous permit (OQ24. 1103.1. 004[{) and any' other similar storm nerter outJirlla <br />tyre covered tinder the general stone nvrter permit rc•-issteed f rr the Creisat Project on Scyrtemher ?!, 7(101. upr! the <br />associated stone u•cner rna/ragenreat plror prvtirlyd to the Dis•isinn ctnd certified ht• CC. d V, <br />G. Ou~rlls: <br />T/ris permit rtrrthori=es t(isc'hnrges front the fr~lGrx•iug point source discharges, shower on Figure 4 njthe permit, tlrru m'c <br />associated with the Cressvur Project. <br />Outfir11001A - is durrrrg>radirnt of the sediment panel tlrra discharges to Aregun Grdch dox•nstream vjthe 6'LF. OutJall on):I <br />is /ncatrrl trpstreunr ujthe discharge jrrm the diversiat [!itch t/rnt urtercepts storm +rater runnJjJmm areas npgrcrdient q(t/+<• <br />1'L!•: OutJirl! OOId is located at CCdV •s nraritoring pvirrt AG 1.1• which is' rrhnttl 350 feet douvtstreanr of the crest of the <br />sedimenuuinn parr! dam arul is the first available location with suitable foundativrr rind clrarure! chmacteristics for a Jlu+r <br />nrcasurententJlunre. Sta•mwnterJloresdratn~ryeatertheserlinterrtationporrdacrdfivx•toOO/.Atnchrdeh)crrlnrrrv/jfi»mder <br />rc•+'egelated the herur ajrlrr F'LF, nnrojffium re-located tligh+vuv (7, urril runoJfjrom t/re storm x afcr eanrol nreasnres to tlu• <br />south mrd east ojthe YLF. <br />Orttrid100>B-This antfa// tyil! hr usrrl jm' run' prrcipitution-aursrd discharges Jrom dtr 1'LF• which utter ucctrr eitl~cr rrs n <br />result gfdye <aurual prrcipiurtiorr jirllurg on the {'LF• exceeding the ruurtrul erapunuion or as a result oja single prrcipiuuinn <br />ererr! cnecr(ng the 111-} c•«r, ?4-frow~ storey iurrnsirr rv he rsrerderl. A/o specific' overJTmv riutjatlluev heert e•nuslructrrl. !n the <br />turlikely event t/rere is a nerd to rlirer•[ Jlu++•s firim the T'LF into Amytra Gulc/r hearure of c xtreure' preeip/tation corer/iriorrs. <br />same jorn+ ul.lluid rnanagerncnt strate~n• +ril! hear m he iurp/enrerrred, <br />