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1�4r 111= 1• � I• Nam m m = = = = 4r = TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA Casing Depth Groundwater LPH Concentration( /L) Well Elevation to Water Elevation Thickness Ethyl- Number Datefeet ( (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH- MTBE VI 08/24/95 857 VI 10/19/95 857 Well dry - VI 02/13/96 8 57 Well dry -- V 1 04/18/96 8 57 Well dryVI 08/08/96 857 Well dry VI 11/04/96 8 57 Well dryVI 02/03/97 857 Well dry VI 05/08/97 760 Well dry VI 08/26/97 760 Well dryV] 11/11/97 760 Well dry -- VI 03/03/98 760 Well dry �- V1 05/20/98 760 Well dry VI 08/19/98 760 Well dry -- V1 11/18/98 760 Well dry VI 03/30/99 760 VI 05/05/99 760 Well dry -- V 1 08/20/99 760 Well dryVI 12/06/99 760VI 02/29/00 760 VI 05/16/00 760 - -- -- -- --VI 09/11/00 760 __ -- VI 12/13/00 760 1705 -945 000 83 170 24 128 970 <0 5 V1 03/08/01 760 1622 -862 0 00 330 280 140 520 4,200 <2 5 VI 06/21/01 760 1761 -1001 000 1,500 830 560 1,690 13,000 <12 V1 09/20/01 760 1875 -11 15 000 970 760 440 1,200 8,400 <2 5 VI 12/04/01 758 18 53 -1095 000 4,200 12,000 2,000 9,400 76,000 <5* VI 03/05/02 7 58 1765 -1007 000 892 30,600 4,850 24,100 62,400 h <10 V1 06/11/02 7 58 18 15 -1057 Sheen 3,650 9,870 2,080 9,260 62,160 h 600 V1 06/11/02 7 58 V1 <25* 09/10/02 7 58 1935 -1177 000 5,590 19,300 3,270 15,600 104,000 h 180 V1 09/10/02 758 <50* VI 12/18/02 758 1920 -1162 000 3,160 12,000 2,160 10,400 56,200 h <50 glprojects1739421masterlwp1gO603U9421,nv x1s Page 39 of 48