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-,Y <br />Spoil Fill #8, <br />August 6, 2010 <br />Page 2 <br />FILL PLACEMENT <br />Fill placement has been completed in accordance with the approved plan. No additional fill placement is <br />anticipated. <br />COVER MATERIAL <br />Final fill configuration has been established and topsoil material has been placed on the excess spoil-fill. <br />The area was mulched and seeded in the fourth quarter of 2003. Soil was placed and spread on the upper <br />most surface of the fill in May of 2004. During the second quarter of 2005, areas disturbed by maintenance <br />of the armored down-drains were seeded using certified weed free straw and the approved rangeland seed <br />mix. The construction access road east of the east down-drain was hand mulched and seeded during August <br />of 2006. <br />STRUCTURAL INTEGRITY <br />The excess spoil fill facility was examined for signs of failure and instability such as tension cracks, ground <br />movement, springs and seeps, and standing water. No indication of potential instability or adverse <br />conditions were observed. <br />DOCUMENTATION AND OTHER OBSERVATIONS <br />Mid-summer conditions prevail with good ground cover and fair soil moisture due to recent precipitation. <br />Over 3" was recorded August 2-3, but run-off was limited due to increased vegetative cover. Operator has <br />completed repairs on the down drains; but erosion damage remains to be repaired on the upper west lateral <br />ditch. This work is planned for mid-August. Overall, site is in good condition except as noted. <br />This inspection report was written on March 13, 2011 based on field notes from August 6, 2010. <br />CERTIFICATION <br />This inspection was conducted by Ronald G. Thompson, a qualified professional and MSHA certified <br />inspector of earth and rockfill embankments and impoundments, under the direction of Mr. Charles <br />McGlothlin, a registered professional engineer licensed in the State of Colorado. <br />This is to certify, to the best of my knowledge and belief, that Fill No. 8 construction and placement, as <br />noted since the previous certification and as determined during this inspection and discussions with mine <br />personnel, is in accordance with designs as proposed by CTL Thompson in their report dated April 27 and <br />amended July 27, 2001 and as approved by the Division of Minerals and Geology. <br />Ronald G. Thompson <br />Inspector <br />r <br />Charles W. McGlothlin <br />Professional Engineer