_INSPECTION - C1992080 ‎(13)‎

• Permit No: C1992080
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 10/29/2008
• Email Name: TAK
• Media Type: D
• Archive: No

The revegetation success criterion for the bond release area is vegetation cover of 90 percent of the
cover standard of 40 percent with 90 percent statistical confidence (permit application page 5-36).
Upon receipt of the SL-4 bond release application,Phase I reclamation liability(backfilling,grading,and
drainage re-establishment)remains for the following areas: topsoil stockpiles 4,7,and 8;the two sediment
control ponds(1 and 2);various ditches;and various boreholes. Phase I reclamation liability also remains
for removal of equipment from the Equipment Yard. Phase II and III reclamation liability(topsoiling and
revegetation) remains on all disturbed areas.
Selected photographs taken during the inspection are provided at the end of this report. The ground
was dry and the site was fully accessible. With the consent of the operator, this report was issued from
the Denver office.
Availability of Records
All required records were on file at the office of Goff Engineering(see attached list).
Signs and Markers
Permit boundary markers were properly displayed at the numerous locations inspected. Topsoil markers
were properly displayed on the only remaining stockpiles: 4, 7, and 8. The mine i.d. sign was properly
displayed on the only public road entrance into the permit area.
Roads
The asphalt-surfaced main haul road was in good condition. The main haul road and the North Pit haul
road have previously been approved for permanent retention,as documented in Appendix 5-1 of the permit
application. The width of the North Pit haul road has been reduced to 30 feet as specified on page 5-26 of
the approved reclamation plan. The road surface of the North Pit haul road was in good condition during
the inspection.
Hydrologic Balance
Drainage routing. Pond 1 (the large pond) receives runoff from the coal permit area and gravel permit
area. The following four parts of the coal permit area drain to Pond 1: the north half of the North Pit
reclaimed slope,the east half of the PRSA,the South Pit Drill Pad,and the Equipment Yard. Runoff from
the west half of the PRSA reports to Pond 2. Runoff from the south half of the North Pit passes through a
grass filter terrace at the base of the reclaimed slope and then flows to the newly constructed Carbon
Junction channel via the ditch next to the North Pit Haul Road. The south half of the North Pit reclaimed
slope was approved as a small area exemption in TR-14. No water was flowing on the site during this
inspection. Positive drainage appeared to exist throughout the drainage route from backfilled areas to the
ponds.
Ponds 1 (large pond, outfall 001) and 2 (small pond, outfall 002). The two sediment control ponds
were approved for removal in Technical Revision 15 (approved in January 2008) and MR-6 (vegetation
cover data, approved August 11, 2008). Both ponds were in good shape, with no problems found with
discharge structures, embankments and inslopes.
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