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<br /> <br />1 <br />1 <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br />1 <br /> <br />1 <br />I _J <br />1 <br />3.) The third through sixth graphs represent the 1993 <br />piezometric level of pile sections taken through or near <br />PZs P-1, P-2 and P-3, respectively. In each of these <br />plots the piezometric surface appears to peak sharply <br />just below the alignment of the first slope bench. The <br />third graph titled "P-1 Section Piezometer Plots" <br />includes data from PZs B2-2, P-1, P-1T1, P-1T2, B1-2 and <br />BO-2. As can be seen from this plot, the topography map <br />and by referring to the respective piezometer's <br />horizontal location, the piezometric surface rises <br />sharply from an elevation of 4844.5 at PZ B2-2 (below the <br />second slope bench) to approximate elevation 4863 at PZ's <br />P-1 and P-1T1 (below the first slope bench), then slopes <br />back down to an elevation of 4825.6 at the toe of the <br />slope. This peak or spike in the piezometric surface is <br />even more pronounced when evaluating the plots through PZ <br />P-2 and PZ P-3. Considering these measurements together <br />a ridge or line of high pore pressure (at elev. 4850 +/-) <br />appears, and follows the northeast alignment of the <br />bench, between PZ P-1T1 and PZ B1-3. The third through <br />sixth graphs are presented as Plates 6 through 8, <br />respectively in the Appendix. <br />Conclusions drawn from the evaluation of available piezometric <br />data are presented in subsequent sections of this report. <br />1 <br />