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truck andlor pipe trailer, rig-up truck, air ca?npressor, core trailer, and t?vo ar three ? x 4 pickups for <br />?? the drill-crew and company representatives. For each coal exploration {r?on-geotechnical} drillhale, a <br />? sham section icall ?0-60 feet ofthreaded surface casin will be set to stabilize unconsolidated <br />?p Y ? <br />surface materials, Drillholes will be a nominal 6.25 inches in diameter and will vary in depth from <br />approxirriately SOD to I,9D? feet. Hales drilled for geatechnical investigations range from 5D to 150 <br />feet. The anticipated total depth far each coal exploration drillhale is identified in Table 2, Wage <br />'reek Pr?jec? - 20D9 ?xp?ora?iarr Program Dri??o?e ??peci rca?ior?s. rt is anticipated that the wadge <br />coal seam and associated roaf and floor units will be cored in each non-geotech drillhale. evera! <br />hales ?ccu07, ccu444, ccua38, ccu442, ccu04S, ccu046 and ccu040? wi11 be drilled down to the wolf <br />creek coal seam. Associated roaf and floor units will also be cored for these drillholes. If other coal <br />seams of lnterest are penetrated fie.., Lennox ar gage creek} they may be cored, as well. dares will <br />be recovered, examined and lagged by a qualified geologist, and core samples may be sent?off for <br />analysis ofcoal and rooflflaor chemistry and characteristics and rock-strength parameters. It is <br />anticipated that the ma?oxity of drillholes will extend approximately 40 feet below the wadge or'?olf <br />creek coal seam. The pximary circulation medium will be water and drilling mud. In the event that <br />subsurface conditions are favorable, air or an airlfaam medium may be utilized, as arr alternative #o <br />rnud. Air ar an airlfoa?n medium will be utilized for alb geatechnicl hales. water for drilling will be <br />obtained from stock ponds located an surface controlled by gage creek, Drilling contracts wilt <br />specify that only non-taxis, bia-degradable compounds and additives may be used for drilling muds. <br />?` <br />Sage ?;rec?k }'??vjc?cr --1f?Q9 N(?I <br />04fQ?U09 j ?