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n <br /> Table 2 <br /> Historical Groundwater Gradient Data <br /> ARCO Service Station#2133 <br /> 2908 Benjamin Holt Dr,Stockton,California <br /> Approximate Approximate <br /> flow hydraulic <br /> Date direction gradient <br /> 8/89 NE 0 003 <br /> 12189 NE 0 003 <br /> 4/90 NE 0 002 <br /> 8190 —(a) --(a) <br /> 10190 NE 0 003 <br /> 2191 NE 0 002 <br /> 4191 NE 0 003 <br /> 7191 —(a) --(a) <br /> 1018191 —(a) —(a) <br /> Il22192 —(a) --(a) <br /> 4122192 NE 0 001 <br /> 7129192 (a) --(a) <br /> 10/29/92 —(a) —(a) <br /> 1!27/93 NE 0 003 <br /> 4129/93 NE 0 003 <br /> 815193 NE 0 002 <br /> 1115/93 N E 0 003 <br /> 3122194 --(a) —(a) <br /> 6127194 —(a) —(a) <br /> 9129194 N E 0 002 <br /> 1218/94 NE 0 002 <br /> 318195 N E 0 005 <br /> 6/1195 N E 0 004-0 007 <br /> 9111195 —(a) —(a) <br /> 12/5195 NE 0 0002-0 001 <br /> 3118/96 N-NE 0 007 <br /> 61 18/96 N E to E 0 004 <br /> 9125196 NE to E-SE 0 004 <br /> 12141% NE to E 0 003 <br /> 3119197 NE to E 0 005 <br /> 615197 NNE to NE 0 0007 to 0 004 <br /> 8119/97 NNE to NE 0 0004 to 0 005 <br /> 3/19/98 Radial 0 005 <br /> 6!24198 Radial 0 008 to 0 011 <br /> (a)Gradient and flow direction could not be <br /> calculated due to influence of remediation <br /> system <br /> 7G600-019-01/Gradient Table <br />