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June 28, 2012 C- 1981 -038 /Bowie No. 1 Mine SB1 <br />measured at 18 degrees (3.IH:1V)Ditch -1 is in good condition and effectively carries runoff <br />downslope. No erosional problems were noted in the ditch. <br />Run -off from the far west end in Zone 3 -A is controlled by a silt fence. Little evidence of <br />run -off was observed, but the silt fence is in need of maintenance. Mr. Bear contacted some <br />student workers during the inspection to come repair the silt fence. The repairs will be checked <br />in a follow -up inspection. <br />Zone 4 -D (Rock cut above portal /office level and below fan level) consists of four <br />benches topped by a native sandstone outcrop. The benches are stable and vegetated. The <br />sandstone outcrop blends in very well with surrounding outcrops in adjacent undisturbed areas. <br />Zone 1 -C (Fan level). This zone is south of the access road and appears to extend to the <br />access road below, although only approximately half of the area is shown on figure I of the bond <br />release application. One slope measurement was taken that showed an average slope of 22 <br />degrees (2.5H:1V). This zone blends in well with adjacent areas. The area below (south) and <br />east of zone 1 -C was not included in the bond release application, although it has been graded <br />and it should be included as part of the bond release application. Some native shrubs have been <br />retained in this area. Ditch 2 that runs around the eastern and southern perimeter of this area is <br />stable. <br />Zone 4 -C and 2 -B. (Portal level Bench and Rock cut above). This zone is not as well <br />vegetated as some of the other zones. The surface has been heavily pock - marked with a backhoe <br />bucket creating many small depressions that serve to reduce runoff from this zone. An average <br />slope of 23 degrees (2.4H: IV) was measured. Little or no erosion was observed. A Delta - <br />Montrose Electric Association (DMEA) electric box is located in the lower part of zone 4 -C. <br />Mr. Bear explained that it is a `live' box that carries electricity to the residents in Stevens Gulch. <br />Zone 4 -B (or eastern end of Zone 1 -B) (Crushing and screening level). This zone lies <br />above a native sandstone outcrop. The zone blends in very well with the surrounding terrain. No <br />erosion was observed. There are several large patches of Canada thistle and musk thistle in this <br />zone that need to be treated. <br />Zone 2 -A (Road fill above warehouse bench). This zone has many native rock scattered <br />throughout. This zone is not as steep as other mine areas averaging a 14 degree (4.OH: IV) slope. <br />One problem noted in this zone is the prevalence of cheat grass - there is little perennial <br />vegetation or native grasses. The cheatgrass should be treated in the fall with a pre - emergent <br />chemical. The Delta County weed manager can suggest the best chemical to use. <br />Zone 1 -B (Shop and Warehouse level fill). This is a gently sloping hillside that is stable <br />and well vegetated. <br />Zone 1 -A (Crushing and screening level fill). This zone is well vegetated with native <br />grasses, shrub and forbs. The zone is well vegetated with little or no erosion observed on the <br />hillslopes. Ditch 7 is a riprapped channel with good vegetative growth. It runs straight down the <br />zone slightly east of the mid -zone, with an average gradient of 21 degrees (2.6H: IV). Erosion <br />had been observed in the lower end of ditch 7 on previous inspections. BRLLC has repaired the <br />lower channel by installing new rip rap and straw matting. The rip rap size looks larger than the <br />Number of Partial Inspection this Fiscal Year: 8 <br />Number of Complete Inspections this Fiscal Year: 4 <br />Page 3 of 9 <br />