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<br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA
<br /> Casing Depth Groundwater LPH Concentration( L)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date feet feet feet feet Benzene Toluene benzene Xylenes TPH- MTBE
<br /> V2 08108(96 930 2390 -1460 Sheen -- -- -- -- --
<br /> V2 11/04/96 930 2473 -1543 000 13,000 31,000 2,500 13,000 130,000 <2,500
<br /> V2 02(03(97 930 1970 -1040 Sheen -- -- -- -- --
<br /> V2 05/08/97 8 15 1920 -1105 000 11,000 29,000 2,900 14,000 170,000 <1,250
<br /> V2 08/26/97 815 2074 -1259 000 9,900 45,000 7,300 40,000 270,000 <500
<br /> V2 11/11/97 8 15 2157 -1342 000 12,000 34,000 4,500 22,000 160,000 3,500
<br /> V2 03/03/98 8 15 1595 -780 000 11,000 30,000 3,500 17,000 150,000 <2,500
<br /> V2 03/03(98 815 <200*
<br /> V2 05/20/98 8 15 1563 -748 000 6,700 22,000 2,500 12,000 100,000 <1,000
<br /> <100*
<br /> V2 05/20(98 815
<br /> V2 05/20/98 8 15 17 23 -9 08 0 00 3,300 16,000 16,000 7,900 46,000 <500
<br /> <100*
<br /> V2 08(19(98 815
<br /> V2 11/18/98 8 15 1767 -952 000 5,700 21,000 2,600 13,000 86,000 <625
<br /> V2 03/30/99 8 15 1576 -761 000 4,830 17,900 2,800 13,300 77,900 <400
<br /> V2 05/05/99 8 15 1612 -797 000 4,590 16,700 2,030 12,300 67,800 <200
<br /> V2 08(20199 8 15 17 55 -940 000 1,400 4,440 517 2,630 20,500 616
<br /> V2 12/06/99 815 -- -- -- --
<br /> V2 02/29/00 815 -- -- -` "' -- -- --
<br /> V2 05/16/00 815 -- -� --
<br /> V2 09111(00 815 -- -- -- -- -- -- -- -� --
<br /> V2 12/13/00 8 15 1760 -945 000 7,100 22,000 4,600 22,600 130,000 <500
<br /> V2 03/08(01 8 15 1679 -864 000 5,700 17,000 4,900 24,100 210,000 <250
<br /> V2 06/21/01 8 15 18 16 -10 00 0 02 -- -- -- -- --
<br /> V2 09/20/01 8 15 1928 -11 13 000 4,800 25,000 6,000 28,600 94,000 <120
<br /> V2 12/04/01 8 11 1907 -1096 000 6,400 16,000 2,800 12,800 110,000 <5*
<br /> V2 03/05102 8 11 1820 -10 09 0 00 5,590 22,800 2,810 10,200 67,600 h <25
<br /> V2 06/11/02 811 1873 -1061 001 5,410 12,200 2,310 9,520 73,700 h 700
<br /> <25*
<br /> V2 06/11/02 8 11
<br /> V2 09/10102 8 11 20 00 -1189 000 5,380 12,200 2,630 10,600 75,500 h 150
<br /> <S0*
<br /> V2 09(10102 811
<br /> 80
<br /> V2 12/18/02 8 11 1944 -1133 000 6,640 16,300 2,740 13,600 85,000 h
<br /> <100*
<br /> V2 12/18/02 8 11
<br /> V2 03124103 8 11 19 13 -1102 000 -- --
<br /> Page 49 of 56
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