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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 Holt Drive <br /> Stockton,California <br /> Approximate Approximate <br /> Date flow hydraulic <br /> Sampled direction gradient <br /> 812212001 N to NE 0.002-0.004 <br /> 121512001 NE to NW 0.003 <br /> 311112002 NE to NW 0.002-0.004 <br /> 6!612002 NE to NW 0.007-0.004 <br /> 9!2412002 N to NE 0.007-0.003 <br /> 12!1712002 N 0.009 <br /> 311$12003 N 0.002 <br /> 6117/2003 N 0.002 <br /> 9!2412003 S 0.003 <br /> 12!1812003 N 0.003 <br /> 311712003 N 0.003 <br /> 6121-6129!04 N-NE 0.06-0.006 <br /> 9121!2004 N-NE 0,001-0.004 <br /> 12!2812004 N-NE 0.005-0.009 <br /> 3812005 N-NE 0.003-0.004 <br /> Notes: <br /> a=flow direction and gradient could not be <br /> calculated due to influence of remediation system <br /> --=not applicable <br /> I <br /> 1:18P-ARCo121335Tableslgwtables2133.xls 2 of 2 <br />