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Colowyo Coal Company <br />2009 Annual Reclamation and Hydrology Report <br />developed during 2009. The West Pit Fill was inspected quarterly for any evidence of <br />surficial slope failure on the face of the fill and none was found. A quarterly review <br />of the survey monuments on the fill noted no significant changes in their positions, <br />suggesting that the fill continues to be stable. <br />Section 16: Under Technical Revision 64 monitoring requirements for Section 16 Fill <br />were relinquished and monitoring was discontinued during the 3rd quarter of 2006. <br />East Taylor: The East Taylor Fill was inspected quarterly for any evidence of surficial <br />slope failure on the face of the fill and under drain integrity. No significant concerns <br />were found. The fill is still under construction and will continue to be monitored <br />quarterly for stability. Starting in the 3rd Quarter of 2009, the East Taylor Fill <br />monitoring report was combined with the West Taylor Fill and will collectively be <br />called the "South Taylor Fill" monitoring report from hence forth. <br />West Taylor. The West Taylor Fill was inspected starting the 3rd Quarter of 2009 for <br />under drain integrity and any evidence of surficial slope failure on the face of the fill. <br />No significant concerns were found. The fill is still under construction and will <br />continue to be monitored quarterly for stability. Starting in the 3rd Quarter of 2009, <br />the West Taylor Fill monitoring report was combined with the East Taylor Fill and <br />will collectively be called the "South Taylor Fill" monitoring report from hence forth. <br />r 1 <br />U <br />Page 7-2