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,. <br /> <br /> <br />Mr. Peter Evans <br />June 20, 1981 <br />Page Three <br />likely to change. The phase of each specific areas is described <br />in detail as follows: <br />- B and West Area - these areas are mined 1977 through 1979 and <br />have been backfilling, final grading, topsoiling, and reseeding by <br />1980 as proposed on GEC's existing permit N 77-48. As a matter <br />of fact, up to 60% of the total performance bonds can be released <br />(Rule 3.02. 4(2)(c), 125(9)(a) ) in accordance with GEC approved <br />reclamation plan. Nevertheless, GEC would be proposing an <br />application for seeking release of performance band for these <br />areas sometime this year. <br />-PROSPECTING PIT (CANON NATIONAL PIT)- the schedule for reclama- ' <br />tion of this pit was clearly set forth as agreed dated January 7, <br />1981, Backfilling/Reclamation Plan for the prospecting pit - <br />Adequacy Review, File N77-48. A tentative date has been selected <br />to close the portals, which will be June 29, 1981, Monday, your <br />presence if you wish, will be most welcome. <br />EEQ <br />-DIV3SION DITCHES FOR PROSPECTING PIT- as agreed with MLRD be- <br />fore, these ditches will be ready to backfill around July 1982 <br />and revegetation by October 1982. <br />f'~~~, <br />1• <br />~' <br />1'~'v,~ `.,.. <br />ve <br />~~,,,,.~n ". / 1 <br />-SUBJECT AREA AND ACTIVE tdINING AREA- Overburden and interburden <br />will be used as backfill by the mining equiptment in use at the <br />site. The phase of reclamation are indicated on the Table I. <br />Because of the rather close sequencing of the completion of coal <br />removal and the implementation of backfilling it is not anticipated <br />that extensive spoil pile stabilization will be required or <br />could be implemented, particularly most of the areas are imple- <br />mented wherein spoils are immediately deposited as backfill in. <br />prior cuts. The timing for backfilling final grading, topsoiling, <br />and reseeding may have to be changed, if auger operation will be <br />conducted from the last open highwall after open pit mining be- <br />comes uneconomical. <br />Owing 'to the high stripping ratio and one of the major coal <br />seams were found mined by previous underground operations, it <br />would be uneconomical for GEC 14inerals, Inc. to continue mining <br />the mined out area. Any further mining would be too expensive, <br />unless the mining can be limited to the low stripping ratio area, <br />which is located at the East and/or West of permitted hillside. <br />This type of mining method usually called Contour I4ining, in <br />GEC's case, a haul back -•controlled contour mining method will <br />be used, which is basically the modified contour minino method <br />with spoil haulage instead of direct casting. Map II - cross <br />section of non-contour regrading indicates that the past mining <br />