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South Taylor Fill Inspection Certification <br />On May 31, 2012, I inspected the area in which the South Taylor Excess Spoil Fill is being <br />constructed. This report covers activities associated with the East Taylor Fill and the West Taylor <br />Fill identified on Map 23A of the approved permit. The purpose of this inspection was to observe <br />status of the fill placement. This inspection is necessary to satisfy the requirements of CDRMS <br />Rule 4.09.10 (1a) and Rule 4.09.1 (1b). Weather conditions were clear and all portions of the fill <br />were visible. <br />A -A' Underdrain Area: The construction on the entire A -A' underdrain including fabric installation <br />has been completed. The uppermost portion of the drain remains uncovered while the central <br />portion has been covered with fill. The lowermost portion of the drain has been covered to within <br />100 feet of the inlet of the West Taylor pond. Fill placement continues. The toe is filled and sloped <br />to the 7800 elevation and rip rap placement has begun on both the West Taylor West Trib and West <br />Taylor East Trib channels. Dumping continues on the 7850 bench. Flows through the drain <br />continue to contribute inflow to the West Taylor pond. <br />B -B' Underdrain Area: Underdrain construction is completed and all portions of the drain have <br />been covered. Fill placement continues. Substantial quantities of fill have been placed over the <br />drain. <br />C -C' Underdrain Area: Underdrain construction is completed and all portions of the drain have <br />been covered. Fill placement continues. The 7800, 7850, 7900, and 7950 dump benches are <br />completed. The 8000 bench and all higher benches were inactive during this quarter. <br />In November, 2010, TR -88 was approved to extend the toe of the temporary fill. Further, in June, <br />2011, a permit change designated as TR -81 was approved to make these changes permanent with <br />the modification of the postmining topography. <br />Design requirements for the spoil pile are addressed in Volume 13, Exhibit 21, Item 1, Introductory <br />Letter. Inspection requirements during construction are further detailed in Volume 12, Section 4.09. <br />I am a Registered Professional Engineer in the State of Colorado and a representative of <br />Environmental Solutions, Inc, P. O. Box 2996, Cheyenne, Wyoming. Being familiar with the <br />Colowyo operation and the coal program permitting process in Colorado, the construction activities <br />related to the East Taylor Fill are in conformance, to the best of my knowledge and experience, as <br />specified in the Introductory pages and the associated report found in Volume 13, Exhibit 21, Item 1 <br />and other applicable requirements of the approved permit documents, a portion of CDRMS Permit <br />C -81 -019. <br />/1 <br />THOMAS C P RS N <br />P.E. No. 32257 <br />DATE <br />xc: Mr. Kurtis Blunt, Colowyo Coal Company, L.P. <br />cf 17.15.1 <br />cf 24.20 (South Taylor Fill) <br />1 <br />