Laserfiche WebLink
L <br />Irrespective of these possible areal changes, regrading activities will establish <br />approximately the contours shown on Map M12 even though the actual regraded areas <br />may not coincide exactly with the areas shown on the map. <br />The majority of areas at Trapper Mine that have been mined or will b¢ mined are <br />on the notch slope of the Williams Fork Mountains. As demonstrated by [he post- <br />mining topography map, mining and subsequent regrading operations will not affect <br />the overall slope of the land. The final postmining graded slopes will not be <br />uniform, but they will approximate the general nature of the premining Copo- <br />graphy. The final slopes will not be steeper than the premining slopes in any <br />general area, and they will be graded to the most moderate and favorable gradi- <br />ents practicable to promote stability and effective revegetation. <br /> On occasion, in order to maximize coal recovery, overburden may be removed by <br /> other than draglines. The maxerial will be placed on mined-out areas or at the <br /> ends of a cut on areas which have been stripped of Copsoil, but not otherwise <br /> disturbed. Dace the m ining operation necessary for coal removal is complete, <br /> these spoil piles will be handled in such a fashion that they 61ead into and com- <br />• plement the surrounding postmine topography. <br />Regrading will continue to be perfo rn <br />ment with occasional assistance from <br />steeper than one vertical to three <br />areas where the original slopes Were <br />essary in these instances. <br />ied predominantly by dozers or similar equip- <br />the draglines. Regraded slopes will not be <br />horizontal CIv:3h) except for a few small <br />steeper. Slopes up to Lv:2.25h may 6e nec- <br />From past experience, this type of regrading results in stable ground upon which <br />further reclamation ac[ivites such as topsoil replacement and revegetation are <br />readily accomplished. Moreover, the final regraded topography blends into the <br />surrounding natural ground. <br />An .important aspect of regrading activities [hat comptaments spoil stabilization <br />is the re-esCabliShment of drainage patterns similar to Chose before mining with <br />s~vrs~oN <br />3-~,z APP~QV ~7 <br />DA?E 9/°l~~ <br />/n~o-Tzfzh. <br />• SEt~ {~.s~ •~t.,,~~ <br />t`s <br />