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<br />\J <br />CJ <br />Factor of safety results of the modeling, can be summarized as follows: <br />• 1997 Condition: Factor of Safety = 1.04 <br />• 1998 Condition: Factor of Safety = 1.28 <br />• 1999 Condition: Factor of Safety = 1.33 <br />• 2000 Condition: Factor of Safety = 1.34 <br />• 2001 Condition: Factor of Safety = 1.35 <br />The stability analysis indicates a slight increase in stability of 1% from 2000 to 2001. This increase in <br />slope stability is due to the vend in lower groundwater levels in and around the landslide. <br />J4.3 Pin (Micro-Pile Analyses) <br />See [he "1997/98 Landslide Corrective Measures Report" for a discussion on micro pile analysis. The <br />model predicted a displacement of 1.8 feet. Acmal displacement to date is 1.5 inch. <br />J4.4 RCC Buttress <br />See the ' 1997/98 Landslide Corrective Measures Report" for a discussioD oD RCC butvess analysis. <br />Movement mirrors directly south of the butvess have measured little or no surface movement, indicating <br />that the buttress has assisted with stabilization of the landslide. <br />Barr Enplneerlnp Company <br />PCDOCS1230503/CAK <br />December 15, 2000 <br />8 Appandlx J <br />2001 Addendum to <br />1997/98 landalide Correetlve Measures Report <br />