2014-06-17_INSPECTION - C1996083

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June 9, 2014 C- 1996 - 083 /Bowie No. 2 Mine SLB • There are straw bales and silt fence along the washplant storage yard that were observed to be in good condition. This sediment control feature is not indicated on Map 20, and should be added to the map. • Wattles along the outslope below the Engineering Office were displaced when initially inspected, but replaced prior to the close of the inspection. Silt fence on the northwest side of the Engineer's Office was in good condition. • The wattles and bales along the toe of Topsoil Stockpiles D and E needed to be replaced. • The silt fence along the outslope of the old rail bed, south of Pond F, needs to either be replaced or removed on the ground and from the permit maps. Sediment control on this slope is not required under Rule 4.05.2(4). It appears that the silt fence was installed when Pond F was constructed, but was not a component of the approved /required sediment control system. • Wattles at the Hubbard Creek Fan site were in good condition. • There is silt fence in place around the material storage area east of SAE #10, near Ditch J15. The silt fence was in good condition, but this SAE is not designated on Map 20 design and location information will need to be submitted for inclusion in the approved permit application package. PROCESSING WASTE /COAL MINE WASTE PILES Rules 4.10 and 4.11 Drainage Control; Surface Stabilization; Placement: No refuse was being hauled to the refuse areas at the time that they were inspected, due to a breakdown in the wash plant. Gob Pile # 1 was inactive at the time of the inspection. Gob Pile 42 Equipment was working on the northern end of the upper bench, removing material for placement and compaction. The central portion of the pile, the TR -76 expansion area, was also being excavated, replaced and compacted. • Refuse material on the north end of the pile has been excavated for rehandling. The elevation of this portion of the pile has dropped approximately 10" since last inspected on May 21, 2014. • Refuse material placed temporarily upslope of Ditch F12 appeared to be steeper than the approved 3:1 outslopes, and should be regraded to prevent sloughing into ditch F12. • Ditch F14 had been regraded and armored, and was in excellent condition. Ditches F19 and F20 had been recently maintained and were also clear and functional. Gob Pile #3 Gob was being excavated from the drying area and placed on the northeastern portion of the pile for grading and compaction. Progress has been made in rehandling the drying area material, but there remains a considerable amount of material to be placed before the September 30th required completion date. Gob Pile 44 was inactive at the time of the inspection. Cover material has been placed on the regraded refuse, but was not graded to final configuration. Number of Partial Inspection this Fiscal Year: 18 Number of Complete Inspections this Fiscal Year: 4 Page 4 of 31