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March 23, 2011 C-1981-018/Deserado Mine JRS <br /> HYDROLOGIC BALANCE(cont.) -Pond RP-4 contained water approximately 18 inches from the top of the <br /> riser pipe and was not discharging at the time of the inspection. The pond embankment was stable and well <br /> vegetated and no erosional problems were noted. <br /> -Pond RP-5a contained water approximately two feet below the top of the primary riser and was not discharging <br /> at the time of the inspection. The pond embankment was stable and well vegetated and no erosional problems <br /> were noted. <br /> -Pond DP-1 contained water approximately one foot below the discharge pipe and was not discharging at the time <br /> of the inspection. The pond embankment was well vegetated and stable and no erosional problems were noted. <br /> The emergency spillway is a riprapped,open channel. Deserado has added a low cement wall at the bottom of the <br /> channel to ensure that the pond contains water from a storm event less than the 25-year/24-hour. The spillway <br /> appeared to be stable. <br /> -The ditch from the prep plant bench to Pond DP-1 was stable at the time of the inspection. The ditch is riprapped <br /> and no erosional problems were noted. <br /> -Pond PP-2 was full at the time of the inspection and not discharging. This pond is a recycle pond for the <br /> preparation plant. The pond is an incised pond. The pond was stable. <br /> Pond SS-2 was dry at the time of the inspection. The pond embankment was well vegetated and stable and no <br /> erosional problems were noted. <br /> -Numerous areas of the mine designated as small area exemptions(SAE's)were inspected. These areas include <br /> rock dust tank 3,the water tank bench,the WMVS area and return shaft 5. These areas all appeared to be <br /> functioning as designed and no problems associated with runoff were noted. <br /> PROCESSING WASTE/COAL MINE WASTE PILES—Rule 4.10 and 4.11 Drainage Control; Surface <br /> Stabilization; Placement: <br /> -Refuse Pile RP-1 has been reclaimed. The pile has been subsoiled,topsoiled and seeded. The pile was well <br /> 666NA6666NA66666666NA66666666NA66666666NA666666NA666666X66666666NA66666666NA66666666 <br /> NA666666NA6666666-Refuse Pile 2/3/4 was actively being used for the dumping and spreading/compactin�of <br /> -Refuse Pile 2/3/4 was actively being used for the dumping and spreading/compacting of refuse. This pile will <br /> now be used until next fall when the temperatures get too low to allow for proper drying and compaction of the <br /> refuse. The pile was well graded and appeared to be compacted as required. No water was pooling on the surface <br /> of the pile at the time of the inspection. Deserado has dumped some larger rock, from the rotary breaker reject, on <br /> the outslopes of the pile to help armor and repair erosional problems on the outslopes. <br /> -Refuse Pile RP-5a was well graded and compacted. Deserado has stopped stockpiling refuse of the pile at this <br /> time. They will spread this material later in the summer as it dries out more. The pile appears to be smaller than <br /> normal and Scott indicated that he believed that the stockpile was approximately 2/3 the size of normal. <br /> Number of Partial Inspection this Fiscal Year: 8 <br /> Number of Complete Inspections this Fiscal Year: 2 <br /> Page 3 of 5 <br />