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` 'REFUSE PILE INSPECTION REPORT <br />1 <br />2 <br />3 <br />4 <br />5 <br />6 <br />7 <br />8 <br />9 <br />10 <br />11 <br />12 <br />13 <br />14 <br />2nd Quarter 1999 <br />III IIIIIIIIIIIII III <br />999 <br />POWDERHORN COAL CO. <br />RSRDA CRDA 1 CRDA 2 <br />DATE 6/30/99 6/29/99 6/29/99 <br />Compa4tion tested within Ouarter No Yes No <br />Burning "-specify extent and location No No No <br />Seepage' -Specify location, color & estimated quantity <br />Isolated points on embankment slopes No Note 1 Note 2 <br />At natural hill side No No NO <br />From downslope foundation area No NO NO <br />From underdrains N/A Note 3 No <br />Cracks in crest' No No NO <br />Sloughing or bulging ' NO NO No <br />Major slope erosion No No NO <br />Rilling and gullying NO No NO <br />Surtace movement No NO No <br />Erosiojn of toe • No No No <br />Water impounded against toe • No NO No <br />Diversion and collection ditches <br />clogged No No Note 4 <br />Erosion No No No <br />Could failure of facility cause an impoundment 7 No No No <br />Was bench completed during quarter 9 NO No No <br />Certification other than fill -Described below. NO NO NO <br />major aaverse Hems coma cause mscawuy ana may mesa [o oe repor[ea [o [ne umu immeaia[ery. <br />Adverse conditions noted in these items shall be more fully described in the notes below. <br />NOTES AND COMMENTS <br />1 Minor puddles of water were noted on the upper north west comer of the upper bench < 1 gpm inflow. <br />This seep has been evident for the last two quarters and is considered normal. <br />2 Puddles of water were noted on the south west comer of the upper bench. < 1 gpm inflow <br />These two damp areas have been noted since the spring and are attributed to deposition of wet filter <br />cake near the edge of the pile. Should De eliminated after grading and drying of last lift. <br />3 There was the normal small pool of water at the toe of the pile coming from the underdrain. <br />4 Culverts under access road that lead to Pond # 10 need the inlet sumps leaned. <br />CERTIFICATION <br />I certify that to the best of my knowledge and belief, that the fill or other aspect of this refuse pile <br />construction certification sper~ed herein has been constructed as permitted in the design approved <br />by the Colorado Division of Minerals and Geology. ~~ „ ~nn <br />Date j-/_c~9 <br />Colorado Professional Engineer # 22325 ~ ohm M. Walters <br />