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Table 3-1 <br /> Summary of Vertical Hydraulic Gradients <br /> Former Unocal Service Station No.0187 <br /> 437 East Minor Avenue <br /> Stockton, California <br /> 5-� U-22 ib-Zhl U-23 Vertical 65-Z6 U-24 ilo-i� U-25 Vertical <br /> DTW DTW Gradient` DTW DTW Gradient` <br /> DATE (feet) DATE (feet) B to C DATE (feet) DATE (feet) B to C <br /> 11120-22100 27.34 11/20/00 27.73 -0.010 11/20/00 26.50 11120-22100 24.68 0.040 <br /> 02126-27101 27.02 02/26/01 27.35 -0.008 02/26/01 26.18 02126-27/01 26.30 -0.003 <br /> 05114-16101 26.80 05/14/01 27.22 -0.010 05/14/01 26.04 05114-16/01 26.22 -0.004 <br /> 08/13-15101 27.79 08/13/01 28.48 1 -0.017 08/13/01 27.06 08113-15/01 27.70 -0.014 <br /> 11/26-28/01 28.93 11/26/01 29.54 -0.015 11/26/01 27.82 11126-28101 28.38 -0.012 <br /> 02125-27/02 28.17 02/25/02 28.73 -0.014 02/25/02 27.19 02/25-27/02 27.54 -0.008 <br /> 05107-09/02 28.25 05/07/02 28.83 -0.014 05/07/02 27.40 05/07-09102 27.69 -0.006 <br /> 08112-14102 29.92 08/12/02 30.87 -0.023 08/12/02 29.16 08/12-14/02 30.03 -0.019 <br /> 11/05-06/02 31.03 11/05/02 31.71 -0.017 11/05/02 29.99 11/05-06102 30.36 -0.008 <br /> 02104-06/03 30.55 02/04/03 31.10 -0.013 02/04/03 29.20 02/04-06/03 29.82 -0.014 <br /> 05/27-30/03 30.36 05/27/03 29.91 0.011 05/27/03 29.41 05/27-30103 29.83 -0.009 <br /> 08126-29/03 31.70 08/26/03 31.26 0.011 08/26/03 30.74 08126-29/03 31.18 -0.010 <br /> 11/29/03 32.98 11/29/03 37.35 11/26/03 41.18 11/29/03 43.42 -0.050 <br /> 02116-18/04 31.72 02/16/04 32.25 -0.013 02/16/04 42.18 02/16-18/04 30.91 <br /> 04/19/04 31.18 04/19/04 31.75 -0.014 04/19/04 35.41 04/19/04 30.50 <br /> 08/16/04 32.91 1 08/16/04 33.70 -0.019 08/16/04 31.68 08/16/04 32.59 -0.020 <br /> 11/15/04 33.24 11/15/04 33.85 -0.015 11/15/04 36.22 11/15/04 32.53 <br /> 02/14/05 32.28 02/14/05 32.97 -0.017 02/14/05 41.98 02/14/05 31.44 <br /> Median -0.014 Median -0.010 <br /> Average -0.012 Average -0.010 <br /> Maximum 0.011 Maximum 0.040 <br /> Minimum -0.023 Minimum -0.050 <br /> Interpretation Strongly Down --r-linterpretationi 1 Strongly Down <br /> Notes: <br /> "Calculated as the difference in head divided by the vertical separation between well screens. <br /> Downward gradients are indicated by negative values. <br /> r <br /> J:1Rem_EnglProject Files1P60(6000-6999)16940-UNOCAL Portfolio Closure16940-UNOCAL Portfolio ClosurelSite 0187-Stockton East <br /> MinorlCSM ReportlSection 3 Tables.xls3-1 <br />