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J '" Page 2 - Go~ Bureau of Mines <br />3. No harmful. impac#~'~'surface disturbance'on other <br />resources is 'anticipated. Never-the~Iess much of the <br />overburden or top soil is being retained and stock <br />piled for the ultimate landscaping of the-area, and <br />"French drains" and/or perforated pipe have been <br />installed to ~s~iure 'the natural flow of surface water <br />in it's established channels. , <br />4. At the present time there is no indication that <br />monitoring technics should be established to ascertain <br />the. effect of surface disturbance, other than regL~lar <br />visual control. <br /> S. Initial studies for the ultimate reclamation oi` the <br /> surface areas disturbed by mining have been complE:ted, <br /> and the results are submitted herewith in preliminary <br /> form. The final detailed plans are now being preF>ared, <br />' which will include working drawings with the size, loca- <br /> tion, grades, elevations, and Ether details required for <br /> the development of the terraces; profiles, grades, drain- <br /> age, and surface treatment for streets; treatment of <br /> backslopes, including benching where necessary with land- <br />, „ scaping; and also the necessary plans for utilities. The <br /> type and nature of tie buildings to be erected on the <br /> terraces has not yet been conclusively determined. <br /> However they shall be so designed to complement both <br /> the existing surface characteristics and exposed rock areas. <br /> Approximately 230 acres will be invol_.ved in the "Planned <br /> U1],~.t Development", diowever, about 180 acres of the 230 <br /> acres will be either directly or indirectly affected by <br /> the mining activities, and of this 180 acres it i.s <br /> estimated that only 90 to 105 acres will be directly <br /> affected by the mining actiuity. <br /> The preliminary plans submitted at this time a~;e in- <br /> tended primarily as an outline and initial guide for the <br /> development of final plans for the area. Each w~=_re de- <br /> veloped from contour maps provided by the U.S. Geological <br />' Survey and land descriptions. Terraced areas were laid- <br />,: out to satisfy accessibility and use of the axe a. It has <br />~..; been determined fropt the preliminary layout of the ter- <br />' races that they will vary in width from 150 ft, to 300 ft., <br />' vary in length from 500 ft. to 1500 ft., and have a total <br /> estimated acreage of 55 to 65 acres available for build- <br /> ing sites. There will be approximately 20 acres of streets <br /> with 50 ft. right o.f ways, ,Fi£te~p to twenty acres will <br /> ba required for backslope$.~ There°~(ai'~,L be 75 to 90 acres <br /> that will be undisturbed. Included with these pre- <br />~~ <br />, liminaiy plans is a'S.~~ottt, of-';ddyWSte~ ;QoSbtOUY ].fines <br />, <br />`' •~ ,, ' a'.:layout: of <br />subsequent to the mining :activities and <br /> , <br />two profiles showing the relationships bf`the e~:isting <br /> surface to the terraced surfaces. Careful atteni:ion <br />"' will be given to the development and treatment of the <br />' backslopes. The maximum slope will be 80 degrees, <br /> <br />~.i which is about the same as the maximum slopes now <br />existing in the area. These backslopes resulting <br /> fxom the mining operation will be benched as necessary <br /> and Tandscaped on the benches. Sotae of t}~e backslopes <br />; will be.~overed with topsoil and seeded to native grasses <br />,{ <br />r '. rat~e~ S'~-odes will, permit tYiis treatment:.. <br />~ <br />~~ <br />a _ <br />v <br />~~Rb .rit.;- .. q'~~ ~ <br />~ <br />~~FeF .r:+3,Y36"fiL.a~~:S..S:.Y Xa ;~i~iJ~m......_ ~_~;~, fi _ ~. 5~ a~ ...i.dS +S", ~.~i'.s. <br />r <br />!~ <br />` ~ti <br />it `r .'.y~ <br />