PERMFILE130223 - Laserfiche WebLink

Home Browse Search

Incremental Bond Calculation (Continued) Year Bond Amount 1986 ....................................$544,575 1987 ....................................$493>349 1988 ....................................$485,003 1989 ....................................$485,003 1990 ....................................$414,453 1991 ....................................$392,317 1992 ....................................$331,868 1993 ....................................$313,868 1994 ....................................$292,379 1995 ....................................$262,580 1996 ..............................'......$211,354 1997 ....................................$163,676 1998 ....................................$ 0 • Backfilling and Grading. As covered in much detail in Section 2.05.3, the method by which GEC Minerals, Inc. mines the coal within the permit area is by open pit method. The overburden material from five (5) different benches, one per seam is backfilled into the mined out pit immediately behind the active pit area. Overburden material and interburden material from the initial cut in each area is placed in a temporary stockpile to be used as backfill material for the final pit during the later part of 1982 and 1985 as shown on the Mine Plan Map No. 15. Rough grading of the backfill material occurs once the anticipated final elevation of the dump has been reached. Grading to approximate original contour is accomplished utilizing crawler tractors. Normally, this grading procedure occurs approximately 600 to 800 feet immediately behind the active dump. Once the final pit area has been excavated, overburden and interburden material from the temporary overburden stockpile will be hauled to the final pit for • backfilling. It is expected that this operation will occur in 1986 immediately after all coal in the final pit has been removed. 2.05-24