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TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration(µg/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date feet (feet) feet feet Benzene Toluene benzene Xylenes TPH-g MTBE <br /> P2 11/04/96 787 2230 -14 43 000 <5 0 <5 0 51 16 1,500 <25 <br /> P2 02/03/97 787 1766 -9 79 000 <2 0 <2 0 52 17 1,500 13 <br /> P2 05/08/97 679 1724 -1045 000 18 <2 5 42 65 1,700 15 <br /> P2 08/26/97 679 1896 -12 17 000 17 <2 0 25 2 6 1,500 11 <br /> P2 11/11/97 679 1950 -1271 000 25 <5 0 25 <5 0 1,300 <25 <br /> P2 03/03/98 679 1406 -727 000 17 <5 0 27 <5 0 1,400 <25 <br /> P2 03/03/98 679 <2 0* <br /> P2 05/20/98 679 1398 -719 000 82 <2 0 18 2 0 980 <10 <br /> P2 05/20/98 679 <2 0* <br /> P2 08/19/98 679 1523 -844 000 7 2 <2 5 8 6 <2 5 850 <12 <br /> P2 08/19/98 679 <2 0* <br /> P2 11/18/98 679 15 75 -896 000 20 <5 0 10 <5 0 1,100 <25 <br /> P2 03/30/99 679 1407 -728 000 <0 5 <0 5 5 81 <0 5 950 <2 0 <br /> P2 05/05/99 679 1430 -751 000 <0 5 <0 5 836 <0 5 688 281 <br /> P2 08/20/99 679 1597 -9 18 000 959 197 389 130 489 252 <br /> P2 12/06/99 679 -- -- -- __ __ _- -- __ -- <br /> P2 02/29/00 679 <br /> P2 05/16/00 679 <br /> P2 09/11/00 679 <br /> P2 12/13/00 679 <br /> P2 03/08/01 679 <br /> P2 06/21/01 679 <br /> P2 09/20/01 679 <br /> P2 12/04/01 677 <br /> P2 03/05/02 677 <br /> P2 06/11/02 677 <br /> P2 09/10/02 677 <br /> P2 12/18/02 677 <br /> P2 03/24/03 677 <br /> P2 06/11/03 677 <br /> P2 09/17/03 677 <br /> P2 12/08/03 677 <br /> P2 03/02/04 677 <br /> g Iprojects173942Vnasterlwp%go3Q5U942gw x[s Page 32 of 57 <br />