_INSPECTION - C1992080 ‎(29)‎

• Permit No: C1992080
• IBM Index Class Name: INSPECTION
• Doc Name: Inspection Report
• Inspection Date: 6/25/2009
• Email Name: TAK
• Media Type: D
• Archive: No

debris and sediment has been washed into the channel,but the culverts contained little sediment,indicating
no recent significant flow through the culverts.
Sediment control The vegetative cover established on the disturbed areas of the Carbon Junction
Mine appears to be effectively controlling erosion. No significant gullies or sediment fans were found
on the site. Erosion on the disturbed areas of the site appears to be occurring at a rate similar to
adjoining undisturbed lands. The base of the North Pit reclaimed slope is contoured to act as a grass
filter for trapping sediment in runoff coming off of the slope where the south half of the North Pit was
approved as a small area exemption in TR-14. This grass filter terrace was in good condition.
Backfilling and Grading
Backfilling, grading, topsoil replacement, and revegetation appeared to have been completed in all
areas within the permit area except topsoil stockpiles 4 and 7, and boreholes 17-1, 94-1, and 95-1 (the
low areas where collection ditches have been regraded in the area of the gravel pit/coal permit
boundary is being researched).
Support Facilities
No problems were found in the Equipment Storage Area at the south end of the permit area. Equipment
previously stored there was removed from the site in 2008.
Topsoil
Stockpiles 4 and 7 were well-vegetated, were not gullied, and do not have weed problems. Topsoil
replacement depths in the SL-4 bond release area were previously verified during the June 2008 inspection
in the Equipment Storage Area and in the Permanently Reclaimed Spoil Area. Topsoil stockpile depths
for the areas regraded in early 2009 (Pond 1, Pond 2, and collection ditches) were verified during the
March 2009 inspection. Replaced topsoil depths in the North Pit area were observed during topsoil
replacement in 2006 and were found to have more than the one-foot required thickness.
Revegetation
The areas that were backfilled, graded, and topsoiled in early 2009 (ponds and collection ditches)have
recently been seeded and had straw mulch applied. The areas that were backfilled, graded, topsoiled,
seeded, and mulched in summer 2006 had initially developed a nurse crop of sterile wheat/oat hybrid, a
product called Regreen. This grass and others (wheat, orchard,brome, and rye grasses)provide most
of the cover on areas seeded in 2006.
Reclamation Success
As mentioned in the October 2008 inspection report, leaving topsoil stockpiles 4 and 7 as permanent
features on the site would require a Technical Revision to the permit application that demonstrates each
stockpile is not needed for a plant growth medium and each stockpile meets approximate original contour.
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