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August 23, 2011 C-1994-082/Yoast Mine SLB <br /> Inspection Topic Summary <br /> NOTE: Y.=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable <br /> NA -Air Resource Protection N -Roads <br /> N -Availability of Records N -Reclamation Success <br /> N -Backfill&Grading N -Revegetation <br /> NA -Excess Spoil and Dev.Waste NA -Subsidence <br /> NA -Explosives R -Slides and Other Damage <br /> N -Fish&Wildlife NA -Support Facilities On-site <br /> R -Hydrologic Balance N - Signs and Markers <br /> Y -Gen. Compliance With Mine Plan NA -Support Facilities Not On-site <br /> NA -Other NA -Special Categories Of Mining <br /> NA -Processing Waste N -Topsoil <br /> COMMENTS <br /> This was a partial inspection of the Yoast Mine based on aerial photographs of the site taken by Harry Ranney and <br /> reviewed by Susan Burgmaier of DRMS. Weather conditions at the time of the flight were clear and dry. <br /> HYDROLOGIC BALANCE -Rule 4.0511❑Drainage Control 4.05.1, 4.05.2, 4.05.3; Siltation Structures 4.05.5, <br /> 4.05.6; Discharge Structures 4.05.7, 4.05.10;Diversions 4.05.4;Effluent Limits 4.05.2; Ground Water <br /> Monitoring 4.05.13; Surface Water Monitoring 4.05.13;Drainage—Acid and Toxic Materials 4.05.8; <br /> Impoundments 4.05.6, 4.05.9; Stream Buffer Zones 4.05.18: <br /> Ponds 011,011A,012, and 013 all held water. Postmining.channels(all YPM)6-1, 13,and 7 all showed <br /> signs of erosion; they are all scheduled for repair this season as part of the approved rill and gully maintenance <br /> plan. <br /> SLIDES and DAMAGE-Rule 4.12: <br /> Work was underway on the Pond 012 slide repair area. Mirafi fabric had been placed along the north <br /> trench drain, and earthmoving equipment was placing the earth fill buttress over the drain against the slide slope <br /> on the north side. <br /> Number of Partial Inspection this Fiscal Year: 3 <br /> Number of Complete Inspections this Fiscal Year: 1 <br /> Page 2 of 5 <br />