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i • i <br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration(µj/L2— <br /> i <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date feet feet feet feet Benzene Toluene benzene Xylenes TPH-g MTBE <br /> MW6 03/24/03 744 1625 -881 000 -- -- -- -- -- <br /> MW6 06/11/03 744 1875 -1131 000 -- -- -- -- -- -- <br /> MW6 09/17/03 744 Well dry -- -- -- -- -- -- <br /> MW6 12/08/03 744 Well dry -- -- -- -- -- -- <br /> MW6 03/02/04 744 Well dry -- -- -- -- <br /> MW6 06/28/04 744 Well dry -- -- -- -- -- -- <br /> MW6 09/27/04 744 Well dry — — -- -- — — <br /> MW7 07/16/87 835 18 11 -976 000 78 35 32 678 1,000 -- <br /> MW7 04/11/88 835 2121 -1286 000 26 <2 0 10 <40 1,200 -- <br /> MW7 835 Well dry since 07/12/88 <br /> MW7 835 Not accessible since 12/30/93 <br /> MW7 05/11/95 835 Well dry -- -- -- -- -- -- <br /> MW7 08/24/95 835 Well dry -- -- -- -- -- -- <br /> MW7 10/19/95 835 Well dry -- -- -- -- -- <br /> MW7 02/13/96 835 Well dry -- -- -- -- -- -- <br /> MW7 04/18/96 835 Well dry -- -- -- -- -- -- <br /> MW7 08/08/96 835 2160 -1325 000 -- -- -- -- -- <br /> MW7 11/04/96 835 2250 -14 15 000 -- -- -- -- -- -- <br /> MW7 02/03/97 835 1758 -923 000 <0 5 <0 5 <0 5 <0 5 71 <2 5 <br /> MW7 05/08/97 685 1731 -1046 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> MW7 08/26/97 6 85 2009 -1324 000 -- -- -- -- -- -- <br /> MW7 11/11/97 685 Well dry -- -- -- -- -- -- <br /> MW7 03/03/98 6 85 1385 -700 000 <0 5 <0 5 <0 5 <0 5 79c <2 5 <br /> MW7 03/03/98 685 <2 0* <br /> MW7 05/20/98 685 1398 -7 13 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> MW7 05/20/98 685 <2 0* <br /> MW7 08/19/98 685 1543 -8 58 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> MW7 08/19/98 6 85 <2 0* <br /> MW7 11/18/98 6 85 1582 -897 000 <0 5 <0 5 <0 5 <0 5 <50 <2 5 <br /> MW7 03/30/99 6 85 -- -- -- -- -- -- -- -- <br /> MW7 05/05/99 6 85 1433 -748 000 <0 5 <0 5 <0 5 0 637 542 <2 0 <br /> g 1projects173942VnasteAwpW904\3942gw As Page 15 of 56 <br />