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Payz 1:'-i4•'+ states that she proposed ne:•r office/shop complex nas Geen tantativ~l.y located as sho~,i~ on 11ap iV-,?, but that it nay be relocated. Until a rival location is detier~uined L•y Gupire, the Division cannot approve of the proposed complex's sediment control system. Ea;pira shall have the complex approved through the revisicn process. Several discrepancies were noted wiur the maps that need to be corrected. Structure fliap IV-L shall delete pond 9-P9 that has been removed, and include any new features proposed, such as the fresh water injection v,ell and, pipeline from pond J-PL. I.1ap IV-y should delete diCch 5-G11. In general, the maps shall be updated t~~ represent existing conditions and changes approved by revisions. >;1V. CnCKY=11_LIIJG 11fJU GkAUING - klJl_I:S L.US..;(b), Z.U5.4(Z)(a), Z.u;,.4([)(c), 4.ug, 4.13 and 4.14 CK I T I CtiL CU?iCEItNS - All ~te:.s ~in this seciion are critical concerns since they are necessary to dete~•nin.e the bond amount. kulc: Z.Ub.ll requires a plan/schedule for backfilliny and grading in sufficient detail to allow the Division to evaluate the feasibility of tr,e pr°oposed post-mining topography and t'ne required bond estimate. in order to completely define the projected movement of overburden rnater'•ial within; the proposed mining operation, Empirr. Energy Corporation must farther detail ore quantities of material to be moved, the location of .'ne material and show the approximate distance of movement. In other 'r:Ords, mass balance calculations roust be made. Page IV-73 states that, "Each of the portals will have a (reclamation) plan developed for each speciFic portal area." The Division agrees wit~r this approac'n, but t'ne plans must be provided in the permit. The first rortal area, the No. 5 portal, is discussed in the application on page IV-73, ;rirere it is stated that concrete from the silo will be used ror uackfilling. On page IV-7&, tf~e plan also provides For additiona] backfill ~uaterial from the track grade. The volumes of the area to ue fillet and the volumes of the materials to be used For uackfilling mist be provided fcr the 'do. 5 portal. In like manner, volunietrics have not Deco i,ruvided ror the No. 5h portal uackfilling operation. The application only states, on page iV-7S, that old spoil rr.aterial '.vill be utilized. i`lass balance calculations and push ur t,z,a ,iistar,,;es •,.ust Lc- provided fur t'r.e reclamation operation at tare i.J. 5r+ pc rtd~. 'r aye I'.-73 Of t'ne application 4150 Says that portals iJO. g dGd i~0. `)~~+ LdVe overburden materials stockpiled fur final reclamation use. The :Mass balance of the backfilliny operations for these portals and for the :~o. 9 portal exl:er~sion described on page I`1-70 must be provided. Tree ezpansinn plan for the No. 9 portal explains that "approximately 250,000 cubic ',sic) yards of material will be excavate)". Swell factors shoulrJ be usco in tl,e mass balance calculations For the No. 9 portal extension.