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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-g MTBE
<br /> V3 I2/18/02 761 1971 -12 10 000 <50 380 1,310 5,260 17,000 h <50
<br /> V3 03/24/03 761 1910 -1149 000
<br /> V3 03/25/03 761 -- -- -- 340 398 1,760 7,240 27,500 h 920
<br /> V3 03/25/03 7 61 <5*
<br /> V3 06/11/03 761 1930 -1169 000 836 320 1,430 5,950 21,900 h 182
<br /> V3 06/11/03 761 <5*
<br /> V3 09/17/03 761 2075 -13 14 000 750 485 2,160 8,640 31,000 h 950
<br /> V3 09/17/03 761 <5*
<br /> V3 12/08/03 761 2072 -13 11 000 102 675 3,220 11,700 47,200 h 127
<br /> V3 12/08/03 761 <0 5*
<br /> V3 03/02/04 7 61 1923 -1162 000 240 765 3,600 12,100 48,600 h 950
<br /> V3 03/02/04 761 <25*
<br /> V3 06/28/04 7 61 2045 -1284 000 956 460 2,670 10,300 40,400 h 13.9
<br /> V3 06/28/04 761 <0 5*
<br /> V4 05/02/91 938 3210 -2268 005 31,000 58,000 5,700 29,000 200,000 --
<br /> V4 07/16-17/91 938 3306 -2365 004 Not sampled-LPH
<br /> V4 10/15/91 938 3374 -2434 003 Not sampled-LPH
<br /> V4 01/28/92 938 3192 -2254 Sheen 23,000 63,000 5,300 27,000 220,000 --
<br /> V4 04/30/92 938 3148 -22 09 0 01 Not sampled-LPH
<br /> V4 08/13/92 938 3360 -24 17 007 Not sampled-LPH
<br /> V4 10/08/92 938 3420 -2473 0 12 Not sampled-LPH
<br /> V4 02/23/93 938 3085 -2147 000 15,000 35,000 4,300 23,000 150,000 --
<br /> V4 05/18/93 9 38 2935 -1997 000 13,000 47,000 5,900 28,000 240,000 --
<br /> V4 08/22/93 938 2960 -2022 000 9,400 42,000 3,900 21,000 150,000 --
<br /> V4 12/30/93 938 2926 -1988 000 10,000 36,000 4,800 26,000 150,000 --
<br /> V4 02/17/94 938 2889 -1951 000
<br /> V4 05/10/94 938 2854 -1916 002 Not sampled-LPH
<br /> V4 08/02/94 938 2993 -2055 002 Not sampled-LPH
<br /> V4 11/01/94 938 3034 -2096 000
<br /> V4 02/17/95 938 2782 -1844 000
<br /> V4 05/11/95 938 25 12 -1574 Sheen
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