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M <br /> Table 5 <br /> Historical Groundwater Gradient Data <br /> Chevron Service Station#9-4275 <br /> 2905 West Benjamin Holt Drive <br /> and <br /> ARCO Service Station#2133 <br /> 2908 West Benjamin Halt Drive <br /> Stockton,California <br /> Date Sampled Approximate Flow Approximate <br /> Direction hydraulic Gradient <br /> 03/10/99 Radial N-NE 0.0007 <br /> 06/22/99 NW 0.0009 <br /> 09/13/99 N-NE 0.001 <br /> 12/15/99 Variable - <br /> 03/23/00 NE 0.002 <br /> 06/21/00 NE/Variable 0.002 <br /> 09/13/00 NE 0.002 <br /> 12/15/00 NE 0.002 <br /> 03/02/01 NE 0.002 <br /> 05/10/01 NE to NW 0.001-0.005 <br /> 08/22/01 N to NE 0.002-0.004 <br /> 12/05/01 NE to NW 0.003 <br /> 03/11/02 NE to NW 0.002-0.004 <br /> 06/06/02 NE to NW 0.007-0.004 <br /> 09/24/02 N to NE 0.007-0.003 <br /> 12/17/02 N 0.009 <br /> 03/18/03 N 0.002 <br /> 06/17/03 N 0.002 <br /> 09/24/03 S 0.003 <br /> 1 12/18/03 N 0.003 <br /> 03/17/03 N 0.003 <br /> 6121 -6129/04 N-NE 0.06-0.006 <br /> 09/21/04 N-NE 0.001 -0.004 <br /> 12!28104 N-NE 0.005-0.009 <br /> 03/07/05 N-NE 0.003-0.004 <br /> 06/30/05 N-NE 0.0025 <br /> 09/22/05 NW, E-SE 0.0017,0.00095 <br /> 11/18/05 NE 0.002 <br /> 03/20/06 N-NE 0.003 <br /> Notes: <br /> a=flow direction and gradient could not be <br /> calculated due to influence of remediation system <br /> -=not applicable <br /> I:1Chevron1942751Tables12133-QMR.xIs 2 of 2 <br />