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• <br />• <br />CJ <br />In summary, the long-term stability of the overall landslide has been increased with the corrective measures <br />in place. During exceptionally wet conditions increases in hydrostatic heads may decrease the factor of <br />safety, but the overall landslide is calculated to be stable against catastrophic movement. Additional <br />remedial measures are planned to further improve groundwater conditions is the slide including the F- <br />Seam Sump rehabilitation and the upper diversion ditch repair. <br />Continued monitoring and implementation of additional appropriate corrective measures, as determined by <br />the observational approach should further increase the stability of landslide. <br />Bart Engineering Company <br />PCDOCS1208220/CAK <br />July 31, 1999 <br />29 Appendix H <br />1999 Addendum to <br />1997198 Landslide Cortective Measures Report <br />