2010-10-12_PERMIT FILE - C1982057A ‎(5)‎

• Permit No: C1982057A
• IBM Index Class Name: Permit File
• Doc Date: 10/12/2010
• Section_Exhibit Name: Tab 13 Facilities
• Media Type: D
• Archive: Yes

• Coal Carriers Access Road
SCC, and the postmining landowners, have determined the access roads will increase the utilization •
of the reclaimed and surrounding areas. When an access road is no longer needed for operations, SCC
proposes the following:
a. The top road surface will be narrowed to 20 feet
b. The road surfacing material from the narrowing of the section will be placed on the remaining
road width
c. Slopes flatter than 3H:1 V will be retopsoiled
d. All areas redisturbed by road narrowing activities will be reseeded to the edge of the road
surface
Light-Use Roads There were slightly over 3 miles of operational light-use roads at the Seneca II-W Mine.
This is a conservative estimate, because as shown on Exhibit 12-2, the light-use roads extend from the
topsoil stockpiles to the mining limit or to the nearest haul road rather than to the approved disturbance
boundary. These roads are or will only be used on an intermittent basis for purposes other than
transportation of coal including, but not limited to, roads used for monitoring and periodic maintenance of
monitoring facilities and reclamation areas, access for scrapers fo and from topsoil stockpiles, or other
occasional use.
General Requirements. SCC will construct, maintain and reclaim light-use roads to minimize erosion and i
siltation, air and water pollution and damage to public and private property. To the exfent possible, using fhe
best technology currently available, light-use roads will not cause damage to fish, wildlife, or related
environmental values and will not cause additional contributions of suspended solids to streamflow or fo
runoff outside the permit area. Any such contribution shall not be in excess of limitations of State or Federal
law. The locations of existing lighf-use proposed toads are shown on Exhibit 12-2. Atypical cross section is
shown on Figure 13-6.
Location. SCC will locate light-use roads on ridges or on a stable slope in order to minimize erosion. No
light-use road will be located in the channel of an ephemera! stream where the upstream watershed is larger
than one square mile or in intermittent or perennial streams unless specifically approved by the Division.
Stream fords of an ephemeral stream when the upstream watershed is larger than one square mile and
intermittent or perennial stream will be approved by the Division before construction proceeds. All other
stream crossings will consist of culverts in flowing streams, consistently wet areas, and in ephemeral
channels as necessary to allow pas sage and to minimize disturbance of the hydrologic balance. Light-use
roads planned to be used for a period of less than six months will utilize temporary culverts, where required,
designed to safely pass the 1-year, 6-hour precipitation event. Light-use roads planned to be used for a
period of more than six months will utilize culverts designed to safely pass the 10-year, 24-hour precipitation
event (see Table 13-5). Attachment 13-g, Generic Culvert Calculations -Light-Use Roads, provides
calculations for generic culvert sizes for light-use roads. Attachment 13-7 contains calculations for light-use
PR-05 36 Revised 01/06