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Table 2 Flow Direction and Gradient, <br /> ARCO Facility 2133,Stockton,California <br /> Approximate Approximate <br /> now hydraulic <br /> Date direction gradient <br /> 8/89 NE 0 003 <br /> 12/89 NE 0 003 <br /> 4/90 NE 0 002 <br /> 6/90 --(a) -- (a) <br /> 10/90 NE 0 003 <br /> 2191 NE 0 002 <br /> 4191 NE 0 003 <br /> 7/91 --(a) --(a) <br /> 10/8/91 --(a) --(a) <br /> 1/22/92 --(a) --(a) <br /> 4/22/92 NE 0 001 <br /> 7/29/92 --(a) --(a) <br /> 10/29/92 --(a) --(a) <br /> 1/27/93 NE 0 003 <br /> 4/29/93 NE 0 003 <br /> 8/5/93 NE 0 002 <br /> 1115193 NE 0 003 <br /> 3/22/94 --(a) --(a) <br /> 6/27/94 --(a) --(a) <br /> 9/29/94 NE 0 002 <br /> 1218/94 NE 0 002 <br /> 3/8/95 NE 0 005 <br /> 6/l/95 NE 0 004-0 007 <br /> 9/1U95 --(a) --(a) <br /> (a)Gradient and flow direction could not be <br /> calculated due to influence of remediation <br /> system <br />