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• P~WDERHORN~AI_ COP1PAhY • <br />US GS MINE PLAN APPROVAL - FEDERAL LEASE C-078049 <br />- -- Uuiled Slnicb Dcpdn nleln of ILe Inlrrior Page 7 <br />~, .` t.l llliv.l(11 el'Rt LI' S. Thm coal ea[rm [7ov u[u and mequcncc maY be changed by tLe <br />y Uur _'•nU• Stop 607 Cola udv O7tl049 111 m1ng gupe rvLar if mu rl ace dim curb ante due to vubcldence 1m encountered. <br />IA c.., Irda.ll~mn All au[f ace dL to [bmce remlting from auLeldrnce should be reclafmvd <br />[s auvr wvrv hn. n. (..I~..n.~ n~e3 to the utlata c[tav v( the Aru Nlnl ng Supe rvly or aftrr convul[a[lon <br />vlch Ne •ur/me man agemen[ agencies. <br />0ccember 15, 1976 <br />MS Va Dpe utln{ Re gu Ltlon 70 CFR 21l(d)(I)(1f) require. the[ approval <br />of mlve pLv or modlllca[lov of plan comply vl th all requlrev.•nu of <br />[he ce {u]a[lvv 30 CFR 711 on or before November 17, 1977. It la <br />Nr. Rarlea Sllcvgv ac cardly{17 reque rted umt your mine plan be re vleved and mJlfted for <br />7Al4 Carol PLcr coaplim ce. Ple eee rrfcr tv out letters [o Cambrld ge v! Junr l6, 1976 <br />0rmd Jmctlvv, Colorado tlIS01 avd Septe mbec 77, 1976 dt.c ass ing [hfa aub]ec[. <br />gub]eet: Approval of one plan of L,vJ,rld gr Nl ning Covp avy, One cep? each of regulat[on., ml ne plan check l1at, mine plan lormet, <br />Coal Irue Colo a do 0]8069 and le titre of Juvr I4, 1976 anJ September 27, 1976 are enclv.cd for <br />yauc guidance. <br />Dear Xr. gllevgo: <br />. ~ SSvicerely 7vu ra, <br />iha Dvder Recreury of the lv[erlor on Dvcr mLer 7, 1976 m[herlaed <br />app[aval vl lout Canbrl d6e mlvr pl m. n <br />Accvrdlm {17, lour ml ve plan 1v1tlal ly wbmltt<d ov December 76, 19)4 ~~ lil~~~~t~ C <br />v![h L[er mudllf utlona ov July ]L, 1915 and Apr11 30, 1976, la J. Paul g[orv m <br />hereby APPROV [U aub)ect [v tree /ulloming at lpulatlona: Area Mlning guperv L mr <br />N <br />1. Prior w dl ache gr vl ... ur Irus the ml ne or lmyou ndmevt loco Fnclomre ', <br />[he Colorado R1 vet, the opcr at or shall Snail tote • movltmrtng mya[em w J <br />lvmn thrt tN quallq v/ the mace[ to Le dl mho ged loco Ne river <br />viii reset all cede ul and State mater qm silty m[endarda. Men![v[1ng <br />or osier dlmch ar ge mLUUId be conducted, at the minlmu m, [or pN and <br />u 11n1t/ a veil as lv accord mce vlth the Frderal and State requlrcmenty. <br />7. If • pcrmanev[ mnrt Impuundaa n[ la required to rtore ucua <br />{round va[er [hat moat be pumped [tom thr m1 ne, tLe tmyuuvdae nt v111 be <br />evnat[ueted accordl ng to appll obis Fr derd and Su to lava and tegulatlona. <br />). Prior to retreat •lvl vg, the opet mt or aha 11 muhml[ !vr mpprovml, <br />a pLo of panrl and p111.r u[rmc [f on tm anmv [he mr que nce o! retreu <br />mlmin` and /ltul utuctlon Jtrr the mine 1a dev. loped tv fu fullce[ <br />ea[em[. <br />L Tha ope utmr moat Ptavlde an adequ mce mvbalde nce detection grid. <br />The {rid atae avd monl[orly{ lnu tool v111 be ertablla hed by tree Ate. <br />lu vie{ Superv 4or. gurf ms dla[urbmnce due to mbelde nce viii be iwoed- <br />1a[ely reported b7 the operator to the Nf ving hupervla or by telephone <br />and lv vrltly{. <br />Dw' W <br />a` a: <br />o + <br />