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200 Series Piezometers <br /> Pore Pressure Determination <br />PZ Piezometric Boundary Difference Pore Pressure <br />ID Surface Elev. Surface (Feet) (PSF) <br /> (4/23/94) Elev. <br />200 Dry 4864.39 0.00 0.00 <br />201 4862.10 4859.39 2.71 169.10 <br />202 Dry 4855.39 0.00 0.00 <br />203 4852.79 4849.39 4.40 274.56 <br />2D4 4837.04 4835.39 1.65 102.96 <br />205 4834.00 4830.39 3.61 225.26 <br />206* 4818.58 4813.39 5.19 .323.86 <br />* Foundation Piezometer. <br /> 40 0 Series P iezometers <br /> Pore Pressure Determination <br />PZ Piezometric Boundary Difference Pore Pressure <br />ID Surface Elev. Surface (Feet) (PSF) <br /> (4/23/94) Elev. <br />400 4907.49 4905.25 2.24 139.78 <br />401 4898.22 4896.25 1.97 122.93 <br />402 4896.09 4888.74 7.35 458.64 <br />403 4891.19 4879.25 11.94 745.06 <br />404 4863.58 4861.25 2.33 145.39 <br />405 4848.52 4846.25 ~ 2.27 141.65 <br />406* 4838.12 4830.25 7.87 491.09 <br />* Foundation Piezometer. <br />The maximum piezometric head within the pile, below the presumed <br />boundary at elevation 4879.25, appears to be 4.4-feet (PZ 203) <br />which corresponds to a pore pressure of 274.56 PSF. The maximum <br />piezometric head in the foundation alluvium material appears to be <br />7.87-feet (PZ 406), which corresponds to a pore pressure of <br />491.09 PSF. The final readings in piezometers 402 and 403 indicate <br />that a reservoir or"dome of high pore pressure may be developing <br />20 <br />