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SLOPE STABILITY INTERIM INSPECTION REPORT AREA Wadge Hiohwall Drainage Fill DATE 06/27/97 TIME 12:45 p.m. by Michael Altavilla WEATHER Sunny 70oF 1. Debris, organic matter coal, etc., present in fill None visible. 2. General gradation and characteristics of material Reclamation side of pit has been regraded. Hiohwall (west side) was regraded complete for now. East in August and September 1995 and looks good. Two areas on highwall side will require some maintenance repairs. Some topsoil was replaced at the very northern end of the fill area in 1995. 3. Presence of water, surface and ground None visible. 9. Condition of underdrain (approx. current width, depth, and length), material gradation and characteristic, compaction, presence of water N/A 5. General material movement None observed. 6. Proximity and treatment of seep points Spoil spring 1000 ft down a rate of approximately 25-35 gom (visual estimate). aradient was flowing at 7. Condition of slope fill surface (grading, cracks or sloughing, Conditions of recently graded surface were good. Two areas on hig erosion, revegetation) hwall side will require some repair. Some erosion in drainage bottom iust prior to entering topsoiled and revegetated area to the southeast. All final drainage work, topsoil replacement, and stocknond construction will be completed this year. Excellent vegetation cover around check dams. 8. Recommendation Continued observation of the fill area as fi maintenance work is completed. Differential settlement and eros nal finish grade and ion should be monitored and repaired as necessary. This area should be completely graded. retopsoiled and seeded during the reclamation season in 1997. 9. Accountability I certify the preceding observations and comments to be true and accurate to the best of my knowledge. JUL 14 1997 Date