2014-06-17_INSPECTION - C1996083

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June 9, 2014 C- 1996 - 083 /Bowie No. 2 Mine SLB SUBSIDENCE Rule 4.20: Portions of B Seam panels 10 through 14 were walked, particularly in the vicinity of gob vent boreholes and associated roads. No subsidence features were observed on any of the areas traversed. SUPPORT FACILITIES -Rule 4.04: The cut slope of the Terror Creek ventilation shaft was reinforced with rock bolts and netting at the time of construction. During the inspection, sagging of the netting was observed in a few spots, but the face appeared to be stable overall. An unmapped culvert was identified in the Pond K drainage area. The culvert is a 24" corrugated plastic pipe that runs from the southeast corner of the loadout batch weigh system building down to Ditch K4, just northeast of Culvert K2. Design and location information for this culvert will need to be incorporated into the approved permit application package, and should be included in the revision application being submitted to address permit inconsistencies identified during the May 21, 2014 site inspection. Culvert K2, identified as blocked during the May 21, 2014 inspection, was clear at the time of the June 9th inspection. The operator had, however, excavated a sump and installed straw bales in front of the culvert. The sump will need to be extended eastward and the bales moved eastward to ensure that flow can freely enter the culvert. The inlet to Culvert C 1 could not be located in the field. The bench area that drains to Culvert C 1 was reconfigured with the drilling of utility holes under MR -133. The drainage now runs along the roadway down to the outlet of Culvert C 1. The operator will need to either clear the inlet and reconfigure the drainage on the bench as permitted, or revise the drainage control plan. There is a culvert at the fan bench site, labeled "12" Culvert", that is not depicted on Map 20. When Map 20 is revised to address the other inconsistencies identified in this report, this culvert should be added to Map 20. The ditch from the southeast corner of the office building, draining to Culvert C12 needed to be maintained. SIGNS AND MARKERS —Rule 4.02: Mine identification, disturbed area boundary, stream buffer zone, and topsoil stockpile markers were observed throughout the site. Required markers were in place and in good condition with the exception of the marker for Topsoil Stockpile F, which was laying down on the stockpile outslope (the sign needs to be repositioned to ensure visibility), and two disturbed area markers laying down along the light use road to the material storage area east of the D Bench. Topsoil stockpiles D and E are identified in the field by a marker on the south side of the stockpiles. The operator should consider adding a marker on the north side, where heavy equipment traffic occurs, to ensure that the topsoil is not inadvertently contaminated during storage. TOPSOIL — Rule 4.06 Removal 4.06.2; Substitute Materials 4.06.4(4); Storage and Protection 4.06.3; Redistribution 4.06.4: Number of Partial Inspection this Fiscal Year: 18 Number of Complete Inspections this Fiscal Year: 4 Page 6 of 31