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_INSPECTION - C1981038 (38)
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_INSPECTION - C1981038 (38)
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Last modified
11/7/2020 3:41:41 PM
Creation date
3/19/2009 11:09:21 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981038
IBM Index Class Name
INSPECTION
Doc Name
Inspection Report
Inspection Date
2/25/2009
Email Name
MLT
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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III. COMMENTS -COMPLIANCE <br /> Below are comments on the inspection. The comments include discussion of observations made <br /> during the inspection. Comments also describe any enforcement actions taken during the inspection <br /> and the facts or evidence supporting the enforcement action. <br /> Reveaetation <br /> • Near the railroad tracks, below the material storage areas, a few thistle rosettes were <br /> beginning to show (Figure 7). In addition, on the southern side of the tracks, thistle skeletons <br /> from the previous year were standing in the ditch (Figure 8), and a sizable patch of <br /> knapweed was observed on the cut slope. BRL is encouraged to conduct a thorough <br /> walking inventory of the site, in the next month or two, to identify the types and locations of <br /> weeds that are present and to determine the appropriate weed control activities. <br /> EAST MINE- 14:00 <br /> Roads <br /> • The entrance to the East Mine from Stevens Gulch ("SG") Road is paved with asphalt as far <br /> as the gate. A motor grader was parked immediately inside the gate, and had been used <br /> for occasional plowing of snow from the haul road throughout the winter. <br /> • All other pavement within the disturbed area was removed from the haul road during <br /> reclamation activities conducted in the fall of 2008. Virtually all of the snow observed during <br /> the January 2009 inspection had melted from the site. The gravel haul road surface was no <br /> longer adequately "crowned" in some locations, and roadside ditches were not well <br /> established (Figure 9). Various stretches of the haul road surface appeared to have been <br /> eroded by recent snowmelt and/or rain (Figure 10). <br /> • Light use roads accessing Ponds 1, 2, 3 and 4 were somewhat muddy, but passable. <br /> Hydrologic Balance <br /> • A thin layer of sediment had been deposited across the paved entrance to the East Mine <br /> (Figure 11). The erosion and sedimentation were apparently the result of a precipitation <br /> event that occurred on February 23rd (another coal mine in the area reportedly received <br /> 1.5" of rain on that date), two days prior to the inspection. The source of the sediment, <br /> which included silt, sand and small gravel, appeared to be the unpaved haul road surface <br /> uphill from the gate. <br /> • The direction of sediment-laden flow was southwesterly, traveling across the paved entrance <br /> and into the roadside ditch for SG Road, beyond the Disturbed Area Boundary. The SG <br /> Road ditch parallels the road to the south for approximately 500 feet; enters a culvert that <br /> crosses under SG Road; and discharges onto a slope that drops to Stevens Gulch (classified <br /> as an ephemeral stream). Notice of Violation CV-2009-001 was issued for, "Failure to <br /> minimize erosion and resultant siltation beyond the disturbed area." <br /> • Fresh, wet sediment was observed in the SG Road ditch downstream from the paved mine <br /> entrance. Near to the entrance, the ditch was nearly filled with sediment (Figure 12), but the <br /> amount of sediment diminished with distance along the ditch (Figure 13), and was minimal <br /> at the inlet to the cross culvert (Figure 14). Evidence indicated that the depth of flow in the <br /> SG Road ditch was nearly one foot, and the width was approximately 5 feet. <br /> • At the culvert outlet, on the west side of SG Road, there was little evidence of sedimentation <br /> (Figure 15). The gradient there is steeper than that upstream of the culvert, which may°have <br /> prevented any remaining sediment from settling out of the water. Due to steep terrain <br /> (Figure 16), it could not be determined whether any sediment traveled as far as Stevens <br /> Gulch, below. <br /> Bowie No. 1 Mine C-1981-038 25-Feb-2009 <br /> .2. <br />
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