PERMFILE40093

• Permit No: C1981022A
• IBM Index Class Name: Permit File
• Doc Date: 5/14/2003
• Section_Exhibit Name: 2.05 Minimum Requirements for Operation and Reclamation Plans
• Media Type: D
• Archive: Yes

Sevime - 2.05.3
installation of drainage structures, grading, and placement of surfacing materials. For haul roads, fill
• and embankment construction involves placement and companion of fill materials in horizontal lifts
approximately 12 inches deep over the wrdth of fill or embankment. When rock or rocky material is
used for fills, lifts do not exceed the mtwnmum srze of the rock present, and in no case exceed 30
inches in depth. Each lift is moistened, if necessary, to achieve optimal compaction and construction
or compaction equipment is run back and forth over the fill until the design compaction of not less
than 90 percent of numurntun tout dry weight ir achieved. Compaction u tamed to the edge of the
fills so that final embankment slopes are firm and stable. Where fills are placed against existing
slopes, the slopes are benched and scarified and the loosened material blended with the fill dtuirrg
placement and compaction.
Temporary erosion and sediment control measures are implemented during road construction to
control runoff, sediment loss, and sediment transport from the associated disturbed areas. Such
IIleasures include the use of temporary bemu and ditches and placement of silt fence and/or straw
bales to intercept and convol drainage. Where ditch installation is required, ditches are cut to the
design configuration and grade following completion of road construnion and lining material (if
required) is placed to limit erosion and control flow velocities. Culvert installation involves
excavation to competent material; placement of bedding material; ctrlven installation; placement and
compaction of fill and cover material azotmd and over the culvert; and placement of appropriate
headwall and outlet protection, where required. Chm completion to the design configuration and grade
following completion of road construction and lining material (if required) is placed to limit erosion
and control flow velocities. Culvert installation involves excavation to competent material; placement
of bedding material; culvert installation; placement and companion of fill and cover material around
and over the culvert; and placement of appropriate headwall and outlet protection, where required.
Chr completion of road construction, associated cut slopes and embankment outslopes are seeded
and mulched to stabilize the slopes and minimi~r erosion potential.
• Because they are used on a regular basis, haul and access roads are typically surfaced with from two to
six inches of gravel, or crushed road-base material. Road nraurtenance normally involves periodic
grading, watenng to control drat, placement of additional surfacing material, clean-out of road ditches
and culverts, and repair of any significant erosion or damage.
Ponds. Impoundments and Diversions
General plans including descriptions, maps, and cross-seniors, as appropriate, are presented in the
following seniors. As appropriate and required, design information has been certified. Analyse of
potential subsidence effens is not required since all designed structures are located outside of
potential subsidence areas.
Detailed design plate including any required geotechnical investigations, descriptions of operating and
maintenance requirements, and removal/reclamation regtrirements are described or referenced in the
following sections. These plans are designed to effect full compliance with applicable provisions of
Rule 4.05. Specific design requirements for large reservoirs, sedimentation ponds, temporary and
permanent impoundments, and stream channel diversions are addressed by disctsssion or reference in
the following seniors.
Detailed design plans for the East Yard and Upper Hubbani Creek sedimentation ponds and
associated ditches were prepared under the direction of Glenn H Sides (No. 13803) Chief Engineer,
United States Steel Corporation, Western District-Coal. Designs for the East Yard Sedimentation
Pond were modified by Thomas G Anderson, P.E. No. 14726.
Detailed design plans for the Sanborn Creek mine water settling pond and run-off collection and
. diversion ditches; Elk Creek coal handling, support, and ancillary facilities area nuroff collection and
diversion ditches, Sedimentation Ponds A and B and associated ditches and culverts; and the
Substation No. 3 Sedimentation Pond and associated ditches were prepared by or under the direnion
of James E. Stover, P.E. No. 19230. Designs for Sedimentation Pond Al, which replaced Pond A,
PR04 2.05-32 Revised August 2000