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.. ,~ <br />.. <br />DISPOSAL OF EXCESS SPOIL AVID <br />UNDERGROUAID D1:YEI.AR~~NT WASTE <br />Harrison-Peltron is proposing to dispose of excess spoil and underground <br />development waste in two abandoned surface mines near the mine site. <br />The excess development waste currently in storage and being produced is <br />planned to be transported, graded and buried within the Orphan and North <br />Orphan abandoned surface mines located in Section 24, Township 20 South, Range <br />70W. The planned and presently designated area for excess waste disposal area <br />at the Newlin Creek Mine site will be aced as temporary storage and as a long- <br />term disposal site when the backfilling of the surface pits is completed. The <br />abandoned mines are located on land controlled by G.E.C. Minerals and are <br />planned to be reclaimed in the near future. <br />Preliminary estimates of the available volumes of the waste storage within the <br />Orphan and the North Orphan is projected as 30,000 cu. yds. and 386,254 cu. <br />yds., respectively. These backfilling plans are intended to interface and be <br />generally compatible with G.E.C. Minerals' final reclamation plans of Orphan <br />and North Orphan surface mines. <br />Harrison-Peltron will transport material to the site by using a portion of <br />county road 92, an established G.E.C. haul road, county road 15, and developed <br />access into the :Orphan pit. 'Navel to the disposal site could reach a peak of <br />nine to eleven trucks per day but will probably average two to four trips <br />daily. Harrison-Peltron currently plans to use a 25 ton capacity off-highway <br />truck, however, on-highway type equipment is also being considered. The <br />trucks will be directly loaded by a radial stacker or by a relatively small <br />front-end loader at the mine site. <br />The material will then be deposited and placed into the Orphan pit with <br />approximately four (4) to six (6) foot lifts where oprationally practical. In <br />areas which safe operating procedures can hot be maintained, the material will <br />be end-dumped until horizontal lifts may be placed. Movement of backfill <br />material from Newlin Creek Mine to the Orphan Pit is currently projected to be <br />completed by the end of September 1982 at an average rate of 50 to '100 cu.yds. <br />