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• 10. 6a[rier pillars have also been added to the plan that we[e not incLud ed in Mr. Bo yd's study. <br />They will he a minimum of 250 feet in width and will be placed in the appror.t mate a[eas as <br />show on Exh[bit 12-3. <br />11. Should [he active hole being angered intersect the pre vi nos hole, the auger will pull out <br />: ninediataly a: that pot nt, skip the nP%t adjacent hole and L4 en gc on to augeri ry again. <br />12. Auyer holes shall be hlock ed with hiyhwall :poi1 c: other suitab Le mat= nal h?fore they are <br />abandoned. A maximum of 15 previously aupe rod holes will he left open for visual me nitori ny <br />of any pinching or syueeztny of the weh pillar, beE^~? they ere rove red. <br />Production <br />SCr has estimated the frd lowing productron and recovery for the auger mining operations: <br />Panel Width: 1,00u feet <br />Ave raye Coal Thickness: 11 Eeet <br />Coal Recovery: 1f.50 Tons/Acre-foot <br />Depth of Panel: <br />600 F?et = ZSD, OO O.D Tons <br />Tons Fe[ Auger Hole (80 pounds/cub v: foo[I: <br />6011 Feet = 6/H,6 Tons <br /> Block A Flock P Block C <br />Pillar Spaciny/Hole q.5 q.0 5.5 <br />N urMer of Holes/Panel 95 100 87 <br />Tonnage Gq,4 ]~.0 t~,8b0.0 59, U3 P.2 <br />Recovery Rat? L5. 68 ~~.lB [B.fiB <br />References Cued <br />Auger F'a nel Dnsiyn Stud; fcrc Seneca II-W end ioac. f. Mines, Serw ca Coal Company pr?pared by bit. <br />G ra en~e Boyd, Hrghwall Mining Services, Inc. -~i Br:sbane, Australia, Septemter. 1558. <br />• <br />~---- RFais~d Doinr <br />