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Rimrock Exploration & Development, Inc, v <br />25615 26.00 Road <br />PO Box 482 <br />Nucla, Colorado, 81424 : ,~r~:' <br />October 7, 2005 ~'~' <br />t°,. •. <br />~:: <br />Mr. Russell Means <br />Division of Minerals and Geology <br />101 S. 3`~ St., Suite 301 <br />Grand Junction Colorado 81501 <br />,/ <br />RE: J Bird, File No. M-2005-050, <br />Response to letter 9/21/05 ~~ <br />OCT 1 !2606 <br />!/ <br />~ ,tuemSEor+ it~9 fY+.,~ <br />prlro~ os ar~..u: r•; cater <br />RECEIVED <br />OCj 1 12005 <br />„~ui°gY <br />pivis,,,~~ w ,n,,,,.,,... ~~ <br />ADEQUACY ISSUES <br />1) Secondary containment units will be large enough to contain a complete spill or <br />emptying of container plus 25%. i.e.; a 100 gallon tank would be stored inside a unit <br />capable of holding 125 gallons. A containment unit will be a second tank or a lined pit. <br />2) Proposed portal will be cleared, drilled and blasted in to rim. Portal will be secured and <br />timbered as necessary. Portal should be eight feet high and eight feet wide. More drilling <br />and blasting of rim in portal will occur to create a mine. Then we will install a mine steel <br />gate to secure entry into mine. See drawing A for details. Vent holes will be drilled from <br />surface. Drilled vent hole dimensions will be eighteen inches. <br />3) All proposed affected azeas drainage water will run offto water retention pond capable <br />of holding a ten yeaz 24 hour precipitation event (1.5 inches at 100% runoff). <br />After reclamation sloped areas will be pocked to retain water and prevent erosion. No <br />water will be held after reclamation. See drawing B. Area will be seeded to prevent <br />erosion and run off and any water diversion will remain in place. <br />4) There is no electric power in area. All proposed vent holes are neaz existing roads so <br />no new azea will be disturbed except at vent hole. <br />5) Proposed site is in a previously disturbed area so background radiation exists. Low <br />grade ore will be mixed with high grade ore and shipped to the mill for processing. Waste <br />rock disposal area will be covered with surface soil. The existing surface soil is already <br />contaminated which explains the existing background radiation. <br />GPS N38degrees 19.696 min. W 109deg 01.969min is above 0.05% U3 08 radiation <br />level. <br />GPS N38deg 19.704 min W 109deg 01.961min (Existing 9inch vent hole) is <br />