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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(pai)
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date (feet) (feet) (feet) _ (feet) Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> V3 10/15/91 899 3538 -2639 000 1,200 22,000 4,400 22,000 110,000
<br /> V3 01/28/92 899 33 56 -2457 000 1,100 21,000 4,900 23,000 86,000 --
<br /> V3 04/30/92 899 33 15 -24 16 000 390 15,000 2,800 15,000 62,000 --
<br /> V3 08/13/92 899 3532 -2633 000 620 17,000 4,800 23,000 110,000 --
<br /> V3 10/08/92 899 3596 -26 97 000 430 11,000 3,200 17,000 100,000 --
<br /> V3 02/23/93 899 3255 -2356 000 -- -- -- -- --
<br /> V3 05/18/93 899 -- -- --
<br /> V3 08/22/93 899 3133 -2234 000 -- -- -- -- -- __
<br /> V3 12/30/93 899 3051 -21 52 000
<br /> V3 02/17/94 899 3008 -21 09 000 -- - -- -- -- --
<br /> V3 05/10/94 899 2955 -2056 000 -- -- -- -- -- __
<br /> V3 08/02/94 899 -- -- --
<br /> V3 11/01/94 899 3152 -2253 000 -- -- -- -- __
<br /> V3 02/17/95 899 2893 -19 94 000 250 10,000 5,1.00 23,000 85,000 --
<br /> V3 05/11/95 899 26 N -1720 000 110 7,200 4,100 19,000 70,000 --
<br /> V3 08/24/95 899 2734 -18 35 000 <200 6,500 4,400 20,000 56,000 --
<br /> V3 10/19/95 899 2777 -1878 000 <100 5,200 3,600 16,000 69,000 <500
<br /> V3 02/13/96 899 2539 -1640 000 370 4,900 3,500 16,000 76,000 1,900
<br /> V3 04/18/96 899 23 83 -14 84 000 <100 4,200 3,400 16,000 73,000 <500
<br /> V3 08/08/96 899 2444 -1545 000 <125 3,800 3,800 18,000 53,000 <625
<br /> V3 11/04/96 899 2465 -15 66 000 <100 3,500 3,700 17,000 73,000 <500
<br /> V3 02/03/97 899 2027 -1129 000 130 3,400 3,800 18,000 72,000 690
<br /> V3 05/08/97 763 1978 -12 15 000 <50 1,600 2,500 12,000 47,000 740
<br /> V3 08/26/97 7 63 2120 -1357 000 53 1,200 2,100 9,000 36,000 260
<br /> V3 11/11/97 763 2262 -1499 000 140 1,600 3,000 13,000 48,000 690
<br /> V3 03/03/98 763 1693 -930 000 120 2,300 4,000 18,000 82,000 <250
<br /> V3 03/03/98 7 63 <200*
<br /> V3 05/20/98 7 63 18 64 -1101 000 88 1,200 2,900 14,000 44,000 730
<br /> V3 05/20/98 7 63 <100*
<br /> V3 08/19/98 763 1741 -978 000 <25 410 970 4,200 13,000 <125
<br /> V3 08/19/98 7 63 <67*
<br /> V3 l 1118198 7 63 f 7 1{ -948 000 <25 680 1,800 7,000 20,000 <125
<br /> V3 03/30/99 7 63 1595 -832 000 <25 781 2,180 8,630 37,500 <100
<br /> V3 05/05/99 7 63 1595 -832 000 <10 389 1,040 4,500 14,400 774
<br /> L1pInJeLt51719421iriasicrlwp\gO903%3942gw xls Page 43 of 47
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