_INSPECTION - C1992080 (15) - Laserfiche WebLink

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earlier in the day prior to this inspection, according to the operator's representative. (The culverts were the subject of CV 2007-005.) Pond 1 (large pond, outfall 001) - The pond was dry. The embankment and inslopes were in good condition. The flume needs repair work, and the operator's representative explained the work would be done after the inspection. Pond 2 (small pond, outfall 002) — The pond was dry. The embankment and inslopes were in good condition. The flume was in good repair. Carbon Junction channel. The reconstructed section of the channel was in good shape with large rock riprap in place and the two 5 % -foot diameter culverts extending underneath the haul road. Vegetation debris and sediment has been washed into the channel,but the culverts contained little sediment,indicating no recent significant flow through the culverts. Backfilling and Grading Backfilling, grading,topsoil replacement, and seeding appeared to have been completed in all areas within the permit area except topsoil stockpiles 4 (north of pond 1), 7 (southeast of pond 2), and 8 (south of pond 1); the two sediment control ponds (1 and 2); various ditches; the two sediment basins that are to be constructed at the base of North Pit in Carbon Junction Canyon(see page 5-6 of the reclamation plan); and various boreholes. 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. Support Facilities No problems were found in the Equipment Storage Area at the south end of the permit area where several large pieces of equipment remain. The equipment includes: 2 hydraulic shovels, I drill rig, 1 dump truck, 4 service trucks, 1 coal dryer, 1 crop disker, 1 automobile,4 haul trucks,and 12 truck tires. Reclamation liability for the following items cannot be released until the equipment is removed: a)equipment removal and b)backfilling and regrading where the equipment is located. Revegetation The areas that were backfilled, graded, topsoiled, seeded, and mulched in summer 2006 developed a nurse crop of sterile wheat/oat hybrid, a product called Regreen. This nurse crop has since given way to a good cover of wheat, orchard, and rye grasses in the North Pit area. Other grasses and yellow sweet clover are abundant in other parts of the site. Slides and Damage The earthwork contractor was finishing regrading the northern edge of North Pit where runoff gullied backfill in 2006. Boulders have been placed along the edge of the backfill in order to protect the backfill from runoff from the adjacent sandstone dip-slope (see photo). This work completes the repairs that had been identified as being needed in this area during the SL-03 Phase I bond release inspection conducted in November 2006. No new gullies developed on the North Pit backfill during the large runoff event in August 2007 that 4