2010-05-07_PERMIT FILE - C2006085 ‎(2)‎

• Permit No: C2006085
• IBM Index Class Name: Permit File
• Doc Date: 5/7/2010
• Section_Exhibit Name: 2.05 Operation and Reclamation Plans
• Media Type: D
• Archive: No

such as routing water away from a coal waste pile, will remain after
final reclamation. Minor modifications to permanent ditches may be
made to improve their function and stability prior to the end of the
liability period. Reclamation of ditches will involve minimal backfill and
regrading work since the material excavated for their construction is
generally placed adjacent to the ditch. The ditches will be backfilled
with this material, graded to blend with the surrounding terrain, and
revegetated.
Topsoil Removal, Storage, and Redistribution Plan
Topsoil removal and storage methods and procedures are presented in
Section 2.05.3 of the permit application. Based on the estimated
topsoil quantity to be recovered, Northfield proposes to construct
topsoil stockpiles north of the proposed facilities area and adjacent to
the ventilation shaft sites. When topsoil salvage is completed,
Northfield will survey and determine the actual volume of all stockpiled
topsoil. Upon completion of stockpile surveys, Northfield will submit
the survey data to the Division, and document the data in the topsoil
stockpile information included in this section. An estimated volume of
topsoil to be stockpiled, and areas of topsoil salvage, are shown below
on Table 2.05.4 -1, Topsoil Sources /Stockpile. All stockpiled topsoil will
be placed on all mining related disturbance at the facilities and
adjacent areas after the areas are backfilled and graded.
The estimated topsoil thickness in the facilities and associated
disturbed areas averages approximately 6 inches based on field
sampling results. Northfield plans to recover a total of ten (10) inches
of soil materials during construction of mine facilities. The topsoil (6
inches) and underlying subsoil materials (4 inches) will be removed
and blended during construction of the stockpile. Actual recovery
depths will documented during the construction activities. The actual
average depth of recovered topsoil will become the required depth to
be replaced during site reclamation.
Prior to topsoil replacement, regraded areas left in a roughened
condition will be ripped to a depth of approximately 1 to 2 feet to
reduce the compaction resulting from heavy equipment travel. Topsoil
will then be redistributed utilizing either tractor scrapers, wheel
loaders, trucks, tracked dozers, or motor graders as appropriate to
transport and spread the soil material to a generally uniform depth.
These operations will be closely monitored to ensure uniform
replacement thicknesses on all disturbed areas. Maintaining the correct
replacement thickness will also guarantee that sufficient stockpiled
i topsoil will remain for later reclamation of any remaining
2.05.4 -6 Revised 12/04/09, TR -01