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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 /> -76 U-14 U-15 Vertical -1 U-16 110-00 U-17 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 26.10 11/20-22/00 26.56 -0.010 11/20-22/00 26.15 11/20-22/00 <br /> 02/26-27101 25.77 02126-27/01 26.14 -0.008 02/26-27101 25.69 02126-27/01 20.59 0.134 <br /> 05/14-16101 25.67 05/14-16/01 26.11 -0.009 05/14-16/01 25.60 05/14-16101 22.98 0.0 69 <br /> 1 08/13-15/01 26.60 08113-15/01 28.06 -0.031 08/13-15/01 26.55 08/13-15/01 24.95 0.042 <br /> 11/26-28/01 27.62 11126-28101 28.21 -0.013 11/26-28/01 27.66 11126-28/01 26.29 0.036 <br /> 02125-27102 26.96 02/25-27/02 27.41 -0.010 02125-27/02 26.98 02125-27/02 26.86 0.003 <br /> 05/07-09/02 27.01 05/07-09102 27.37 -0.008 05107-09102 27.09 05/07-09/02 27.40 -0.008 <br /> 08/12-14/02 28.65 08/12-14/02 30.49 -0.039 08112-14102 28.75 08112-14/02 <br /> 11/05-06102 29.31 11/05-06/02 30.12 -0.017 11/05-06/02 29.53 11/05-06/02 <br /> %102104-06/03 28.91 02/04-06/03 29.45 -0.011 02/04-06103 29.05 02/04-06103 <br /> 05/27-30/03 29.06 05127-30/03 30.26 -0.026 05127-30/03 28.97 05127-30/03 <br /> 08/26-29/03 30.40 08/26-29103 31.62 -0.026 08/26-29103 30.30 08126-29103 <br /> 11/26/03 39.46 11/25/03 42.16 -0.057 11/28/03 38.70 11/28/03 <br /> 02/16/04 30:06 02/16-18104 30.52 -0.010 02/16-18/04 30.07 02/16-18104 <br /> 04/19/04 04/19/04 30.11 04/19/04 29.73 04/19/04 <br /> 08/16/04 31.20 08/16/04 32.72 -0.032 08/16/04 31.50 08/16/04 <br /> 11/15104 30.52 11/15/04 32.18 -0.035 11/15/04 31.72 11/15/04 <br /> 02/14/05 30.49 02/14/05 31.00 -0.011 02/14/05 30.70 02/14/05 <br /> Median -0.0131 Median 0.039 <br /> Average -0.021 Average 0.046 <br /> Maximum -0.008 Maximum 0.134 <br /> Minimum -0.057 Minimum -0.008 <br /> Interpretation All Down ilnterpretationF--iBad Data in Zone C <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 /> J:lfiem_EnglProject Files1P60(6000-6999)16940-UNOCAL Portfolio Closure16940-UNOCAL Portfolio ClosurelSite 0187-Stockton East <br /> MinorlCSM ReportlSection 3 Tables.xls3-1 1, <br /> J, <br />