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Table 3 <br /> Historical Groundwater Gradient Data <br /> ARCO Service Station#2093 <br /> 3425 Tracy Blvd,Tracy California <br /> Approximate Approximate <br /> flow hydraulic <br /> Date direction gradient <br /> 06/23/88 N 0 002 <br /> 09/29/88 N 0 002 <br /> 02/22/89 NE 0 002 <br /> 06/21/89 NE 0 002 <br /> 09/18/89 N 0 002 <br /> 12127/89 E 0 002 <br /> 04/18/90 NE 0 001 <br /> 01/10/91 NE 0 002 <br /> 04/10/91 NE 0 003 <br /> 07/10/91 NE 0 002 <br /> 09/24/91 N 0 002 <br /> 01123/92 N 0 002 <br /> 04/20/92 NE 0 003 <br /> 07/08/92 N-NE 0 002 <br /> 10/07/92 NNE 0 002 <br /> 01/18/93 ESE 0004 <br /> 04/14/93 N 0 003 <br /> 08/30/93 N 0 003 <br /> 10/27/93 WNE 0003 <br /> 02/17/94 NE 0 002 <br /> 05/20/94 NE 0 001 <br /> 10/07/94 NE 0 003 <br /> 12/16/94 NE 0 002 <br /> 02/28/95 NE 0 002 <br /> 04/26/95 N E 0 003 <br /> 07/27/95 N and NE 0 006 <br /> 10/26/95 NE 0 004 <br /> 02/12/96 E 0 002 <br /> 04/18/96 NE 0 004 <br /> 07/18/96 NE 0 002 <br /> 11/15/96 NE 0 002 <br /> 03/14/97 E 0 003 <br /> 06/04/97 NE 0 002 <br /> 08/11/97 NE 0 002 <br /> 11/17/97 NE 0 002 <br /> 03/30/98 NE 00026 <br /> 06/25/98 NW 0 001 <br /> 09/11/98 NE 0003 <br /> 12/15/98 NE 0 003 <br /> 03/17/99 NE 0 006 <br /> 05/14/99 E-NE 0 009 <br /> 09/16/99 NE 0 004 <br /> 12/22/99 NE 0 01 to 0 04 <br /> 02/29/00 NE 0 003 <br /> 06/07/00 NE 0 020 <br /> 09/25/00 Variable 0 004 to 0 005 <br /> 12/29/00 E-N E 0 003 <br />