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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(gg/L)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> V2 05/20/98 8 15 15 63 -748 000 6,700 22,000 2,500 12,000 100,000 <1,000
<br /> V2 05/20/98 815 <100*
<br /> V2 08/19/98 8 15 1723 -908 000 3,300 16,000 16,000 7,900 46,000 <500
<br /> V2 08/19/98 815 <100*
<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 16 12 -797 000 4,590 16,700 2,030 12,300 67,800 <200
<br /> V2 08/20/99 8 15 1755 -940 0 00 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 09/11/00 815 -- -- -- -- -- -- -- -- --
<br /> V2 12/13/00 8 15 1760 -9 45 000 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 -1000 002 -- -- -- -- --
<br /> V2 09/20/01 8 15 19 28 -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 03/05/02 811 1820 -1009 000 5,590 22,800 2,810 10,200 67,600 h <25
<br /> V2 06/11/02 8 11 1873 -1061 001 5,410 12,200 2,310 9,520 73,700 h 700
<br /> V2 06/11/02 811 <25*
<br /> V2 09/10/02 8 11 2000 -1189 000 5,380 12,200 2,630 10,600 75,500 h 150
<br /> V2 09/10/02 811 <50*
<br /> V2 12/18/02 8 11 1944 -1133 000 6,640 16,300 2,740 13,600 85,000 h 780
<br /> V2 12/18/02 811 <100*
<br /> V2 03/24/03 8 11 19 13 -1102 000 -- -- -- -- -- --
<br /> V2 03/25/03 811 -- -- 6,070 14,200 2,740 11,200 89,200 h <50
<br /> V2 06/11/03 8 11 1931 -1120 000 7,840 16,600 3,690 14,900 97,600 h 490
<br /> V2 06/11/03 811 <25*
<br /> V2 09/17/03 8 11 2077 -12 66 000 5,930 11,800 2,990 11,400 76,200 h 190
<br /> V2 09/17/03 811 <25*
<br /> V2 12/08/03 8 11 2072 -1260 001 6,960 21,000 3,340 13,700 113,000 h <25
<br /> V2 03/02/04 8 11 1920 -1109 000 8,000 19,200 3,760 15,400 107,000 h 1,930
<br /> V2 03/02/04 811 <25*
<br /> V2 06128104 811 2036 -1225 000 -- -- -- -- -- --
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