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July 19,2011 C-1 981-010/Trapper Mine RDZ <br /> All observed blasting activities were at least 500 feet from the East Panel Ready Line,based on visual observation <br /> and a discussion in the office with Larry Johns,blasting engineer. <br /> HYDROLOGIC BALANCE -Rule 4.05: <br /> Within the East A Pit,an evaporator was operating to reduce the amount of water in the pond,as the Trapper site <br /> has received large amount of precipitation throughout 2011. <br /> Eighteen ponds were inspected. This includes all of the ponds that have CDPS discharge points with the following <br /> exceptions: Far East Buzzard,Grouse#2, Sage#2, East Flume,Deer,and Ute were not inspected. Other ponds <br /> (without CDPS points)were also inspected: No Name#2,No Name#4,Johnson#6,East Pyeatt#1,East Pyeatt <br /> #2,Oak#1,Impoundment H,and the Industrial Waste Pond. <br /> The following ponds were discharging: Oak#2,Middle Flume#3,West Horse,Deal,all East Pyeatt ponds, all No <br /> Name ponds, and all observed Johnson ponds. For all ponds that were discharging the water was clear. A CO2 <br /> bubbler was being employed at Johnson#1 OR to lower pH. <br /> No serious problems were identified with any of the ponds. The following maintenance items were identified <br /> during the inspection: <br /> • East Pyeatt#1 needs to have sediment removed. <br /> • The dozer basins in Oak Gulch need to be cleaned. <br /> • Riser pipes require repair at No Name#4 and Johnson#6. <br /> • Flumes need to be cleaned at West Flume and East Middle Flume. <br /> • Burrow holes should be filled at Johnson#6. <br /> • Erosion in inlet channel should be repaired at Industrial Waste pond. <br /> • Within Impoundment H,Russian Olive trees require removal. <br /> Contour ditches west of F Pit were inspected and no blow-outs or other problems were found. <br /> Within three observed channels,banks have been significantly eroded and require maintenance: the channel <br /> downstream of East Pyeatt#3 pond,the channel next to Middle A Road(a tributary to East Pyeatt), and the <br /> channel downstream of culvert AE10. A construction crew had begun work on East Pyeatt#3 during the <br /> inspection. <br /> Several culverts were inspected and maintenance needs were observed: <br /> • Many culverts along LOM Road and North A Road-no maintenance needs. <br /> • Culvert across Middle Ash Road—no maintenance needs. <br /> • SA4A-some sediment removal needed at upstream end. <br /> • Culvert next to shop(along D Pit Road)requires cleaning. <br /> Number of Partial Inspection this Fiscal Year: 0 <br /> Number of Complete Inspections this Fiscal Year: 1 <br /> Page 3 of 11 <br />