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October 18, 2010 C-1994-082/Yoast Mine SLB Inspection Topic Summary NOTE: Y=Inspected N=Not Inspected R=Comments Noted V=Violation Issued NA=Not Applicable Y -Air Resource Protection Y -Roads R -Availability of Records Y -Reclamation Success R -Backfill&Grading R -Revegetation NA -Excess Spoil and Dev. Waste NA - Subsidence NA -Explosives Y -Slides and Other Damage Y -Fish&Wildlife Y -Support Facilities On-site R -Hydrologic Balance Y - Signs and Markers Y -Gen. Compliance With Mine Plan NA -Support Facilities Not On-site N -Other NA -Special Categories Of Mining NA -Processing Waste R -Topsoil COMMENTS AVAILABILITY OF RECORDS—Rule 5.02.4(1): Records were reviewed at the SCC offices on the morning of October 18,2010. All required records were available and current. Records were reviewed with Dennis Jones of Seneca Coal Company. BACKFILL and GRADING—Rule 4.141-]❑Contemporaneous Reclamation 4.14.1; Approximate Original Contour 4.14.2;Highwall Elimination 4.14.1(2)(f); Steep Slopes 4.14.2,4.27; Handling of Acid and Toxic Materials 4.14.3; Stabilization of Rills and Gullies 4.14.6: Rill and gully repairs were underway during the inspection. Rip rap was being installed in YPM6-2. Slopes above Pond 12a were being graded. Regrading was nearly complete in the Pond 12 slide area; the south rock drain had been completed, and the channel for the north drain had been excavated. The operator indicated that the north drain construction will not be completed until after the spring snowmelt,based on recommendations of the geotechnical consultant on the project. The reclaimed areas in the YPM3-2 drainage,downstream of the confluence with YPM3-1,exhibited several moderate(6-8"depth)rills. The operator should attempt to repair this area, if possible,this fall. If ground conditions preclude repairs(likely),this area should be addressed as soon as possible after the spring melt. HYDROLOGIC BALANCE -Rule 4.05❑[-]Drainage Control 4.05.1,4.05.2, 4.05.3; Siltation Structures 4.05.5, 4.05.6; Discharge Structures 4.05.7,4.05.10; Diversions 4.05.4; Effluent Limits 4.05.2; Ground Water Monitoring 4.05.13; Surface Water Monitoring 4.05.13;Drainage—Acid and Toxic Materials 4.05.8; Impoundments 4.05.6,4.05.9; Stream Buffer Zones 4.05.18: Pond 10 was discharging clear water. Repairs had been made around the discharge flume to ensure that no discharge will flow outside of the flume. It appeared that the thistle on the embankment may have been sprayed,but new rosettes were observed. Pond 11 held water below the discharge level,as did Pond 11 a. Pond 12 was discharging clear water. A small seep was discharging about 1 gpm at the south inlet of the pond. Number of Partial Inspection this Fiscal Year: 2 Number of Complete Inspections this Fiscal Year: 2 Page 2 of 8