2007-08-29_REVISION - M1980047 (2)

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Colony Sheie Or: Pro;eG Co,orado rdLRB Porn,4 ht~dG~047 Rev. Aug 2s, [ooi 2006 ANe~etl Are» Shuts Surm•sry and Raquesi rnr Reducrrorl m ABectad Aueege 4.2.7 South Valley Fill Face (tSP Area 188) This area conssts of 6 acres of rockfill at approximately 2H.1 V. This slope was ongina!ly considered as -complete" in the 1982 ISP based on ds rock cover However. Colony later deemed this slope flat enough to aBOw topsoil to be safely placed, and at 27 degrees the topsoil veneer would be slab+e as long as it remains tree draining. Because this slope represented the ilnal con5yuranon of the Plant Sde fill .n this valley. d was seeded with the permanent seed mix. The approx,mate limas of this area are depicted on Exhibd F•3 Because the topsol veneer did not significantly change the topography, the post mining topography Is essentially as shown on Exnibd F-4 which s based on 1982 aerial topography in this area. The curcent conddlon of the area Is presented in Flyure 17. ~..., .I _ . : ,~_ s :..' ~ T - ~-0`~'' - ~ > t~~, . IC~~.I~.m i ~ 1 ~.?~~ 11 1 . ' 6. ~ L.: 1. .- n i~rr!a 155. -'. ..[~. ~, - ... ~ i.~ ... ~... ~t,..~,t Ai.,e 'ri0 ?hese 6 acres of reclaimetl slopes have Leer. reclaimed u1 accordance with the approved reclamatu~n plan and are requested for release from the affected area. Certain site access roads are being proposed for removal from the affected area based on nvo criteria One criterion applies to the surfaces of the roads, whim are intended to be retained as a permanent post-mining land use form ThB roads on the Colony sde continue to be used tar access withrn the Colony sde as well as the only all-weather access to the plateau. Although continued use of these roads was specifically mentioned m the htarcn 1980 permit applicaNOn as a possible permanent future land use IExhitid E, p. E-l6). lets submdtal seeks to csar.ty that point far the roads described herein This category accounts for 67 acres of road surface and side ditches on the Colony sde and •72 acres of off•sde roads on property owned and controlled by others, a!l of which areas are being requested to release from the affected acreage. The above described post-mining land use clarification only addresses the actively marntamed portions of the roads, i e , the driving surface, safety berms, and drainage ditches of the roads In addition kl the dnwng surfaces there are larger areas associated with the side hdl slopes, both cut slopes and UII slopes, welch are also in their permanent raclaimed condition. This second category o1 completed road cut and flu slope reclamation encompasses another approximataly 215 acres o' roadside cut and fin slopes and vertical benched cliffs for which release from the total affected area is also being requested AcreagB SeBking rP.IBafie On this b8615 IS ba9ed On having COmplf?ted the re(aamahOn In aCCUrdanGe with the approved reciamahon pion. The discussion of all of these areas is addressed in accordance wdh the Area designations described m the Interim Site Plan in the fallowing sections