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SLOPE STABILITY <br />INTERIM INSPECTION REPORT <br />AREA Wolf Creek Drainage Fill DATE 4/6/87 <br />TIME 11:00 a.m. WEATHER Clear, 40°-50° <br />1. Debris, organic matter, coal, etc., present in fill None visible. <br />2. General gradation and characteristics of material No apparent change from <br />the prior inspection. <br />3. Presence of water, surface and ground Scattered snow and mud. No surface <br />water visible. Evidences of minor surface runoff from snow melt along <br />the coal haulage ramp. <br />4. Condition of underdrain (approx. current width, depth, and length), material <br />gradation and characteristic, compaction, presence. of water No apparent <br />change from the prior inspection. <br />5. General material movement No unexpected movement is evident. <br />6. Proximity and treatment of seep points None observed. <br />7. Condition of slope fill surface (grading, cracks or sloughing, erosion, <br />revegetation) No apparent change from the prior inspection. The under- <br />' drain is almost completed. As mining progresses with the next several <br />cuts, reclamation grading can proceed on the spoil above the underdrain. <br />8. Recommendation Continued observation and inspection of the fill slope <br />' until rough grading and revegetation are concluded. <br />9. Accountability <br />I certify the preceding observations and comments to be true and accurate to <br />the best of my knowledge. <br />~~ 1~. -~c~~Xa- 11 Aori L 8, 1987 <br />James G. Schlenvogt .~ Date <br />Colorado P.E. 17627 ~ ~9g <br />pQR ~ i <br />