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REV08702
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Entry Properties
Last modified
8/25/2016 1:09:16 AM
Creation date
11/21/2007 9:55:48 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1983058
IBM Index Class Name
Revision
Doc Date
3/31/1995
Doc Name
PROPOSED DECISION & FINDINGS OF COMPLIANCE FOR A PERMIT RENEWAL TWIN PINES 2 MINE PN C-83-058
Type & Sequence
RN2
Media Type
D
Archive
No
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Structures <br />All structures at the portal area will be removed from the site. <br />At the sales site, the tipple, shop/warehouse, scale building and explosives bunker will all be <br />removed. The landowner had requested that the well and well housing, power line (owned <br />by the local utility) and original office building (a 12-foot by 14-foot cinder block structure) <br />remain on the site. The landowner had also requested the access road to the site remain. <br />These features are compatible with the post-mining land use. The three concrete slabs used <br />for storing coal will be rubblized and used to backfill the small topographic low behind the <br />sales office area. <br />Backfill, Grading, and Topsoil Redistribution <br />Backfilling and grading operations are to begin in 1995. TR-07 addresses how both the <br />portal and sales site will be backfllled and the final topographic contour will be met. <br />There are a total of 7,900 cubic yards of fill material available for reclamation of the portal <br />site. This material is old spoil which was removed from the mine portal bench and placed in <br />the Lewis Gulch Fill by the operator. Two thousand cubic yards have already been utilized <br />in the final grading of the refuse pile, and 1,200 cubic yards have been used to backfill the <br />portals. Twelve hundred cubic yards will be stockpiled for final backfilling of the upper <br />bench sediment pond, while 1,000 cubic yards are proposed for backfilling the Golden <br />Quality tipple road scarp. The remaining amount, or 2,500 cubic yards, is proposed for <br />regrading the portal bench. <br />The upper bench will be graded with all depressions removed. All surface flow originating <br />in this upper bench area will be diverted downslope through an energy dissipator before <br />entering the pond at the mine portal bench level. <br />There are only 800 cubic yards of topsoil available for use in reclaiming the portal site. This <br />amount of topsoil will provide agproximately six inches of cover for the mine bench area. <br />There is no other available topsoil on the site since the Golden Quality Mine disturbed the <br />area prior to the Twin Pines No.2 Mine operation. <br />The Coal Sales Area will be backfilled and graded using all available material to eliminate <br />highwalls and depressions. At the sales site, only 90 cubic yards of topsoil, taken from pond <br />construction, are available for reclamation. All other original topsoil has been disturbed by <br />previous mine operations of the Twin Pines No. 1 Mine. <br />Highwalls <br />Photographic evidence submitted with the initial permit application illustrates that the <br />highwalls at the sales site and portal site were pre-existing prior to Twin Pines No. 2 <br />operations. In order to address this issue at the mine site, the operator will incorporate all <br />remaining available fill material (2,500 cubic yards) from the Lewis Gulch Fill into the <br />backfilling and grading of the portal site. The highwall on the upper bench will remain since <br />14 <br />
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