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~~ :::> <br />;y <br />PIONEER CANYON PROJECT <br />Work Narrative <br />The fire investigation and control poject will consist of two phases. The <br />second phase will be undertaken if it is found feasible after investigation in <br />phase I. <br />Phase I Work: <br />A drilling program will be developed from information obtained from work which <br />was completed under the previous Coal Fires Project in the 10th Grant. It is <br />anticipated that 24-30 rotary drillholee with an average depth of 40-60 feet <br />will be needed to refine existing information and define the fire .= ach <br />drillhole will penetrate the coal and determine remaining coal and id <br />amounts. Samples of the mine atmosphere may be obtained and pressor <br />differentials within the minee may be determined. Drillholes will be grouted <br />upon retreat and thermocouples will be installed to monitor temperature <br />variations. The annular volume will be backfilled and the drillhole sealed. <br />No air will be allowed to enter into the drilled holes in an uncontrolled <br />fashion. Information developed in this phase will be used to develop the pilot <br />project in phase two, or alternatively, evaluate other abatement techniques <br />which appear more feasible. <br />