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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 /> V3 12/13/00 763 1745 -9 82 000 11 110 440 1,150 6,000 <2 5
<br /> V3 03/08/01 763 1670 -907 000 <25 640 2,100 8,900 40,000 <25
<br /> V3 06/21/01 763 1807 -1044 000 <0 5 3 1 20 346 1,500 30
<br /> V3 06/21/01 763 <5*
<br /> \13 09/20/01 763 1925 -1162 000 9 8 18 46 132 950 <0 5
<br /> V3 12/04/01 761 1904 -1143 000 <50 260 960 4,200 19,000 <5*
<br /> V3 03/05/02 7 61 1820 -1059 000 -- -- -- -- -- --
<br /> V3 03/06/02 7 61 -- -- -- 260 484 1,390 5,280 13,900 h 102
<br /> V3 03/06/02 7 61 <10*
<br /> V3 06/11/02 7 61 1867 -11 06 Sheen 720 117 548 2,000 8,300 h 100
<br /> V3 06/11/02 7 61 <2 5*
<br /> V3 09/10/02 7 61 1998 -1237 000 <50 260 970 3,790 14,100 h 70 0
<br /> V3 09/10/02 7 61 <50*
<br /> V3 12/18/02 761 1971 -1210 000 <50 380 1,310 5,260 17,000 h <50
<br /> V3 03/24/03 7 61 1910 -1149 000 -- -- -- -- -- --
<br /> V3 03/25/03 7 61 -- -- -- 340 398 1,760 7,240 27,500 h 920
<br /> V3 03/25/03 761 <5*
<br /> V3 06/11/03 761 1930 -1169 000 83 6 320 1,430 5,950 21,900 h 182
<br /> V3 06/11/03 761 <5*
<br /> V3 09/17103 7 61 2075 -13 14 000 750 485 2,160 8,640 31,000 h 95 0
<br /> I
<br /> V3 09/17/03 761 <$*
<br /> N13 12/08/03 7 61 2072 -1311 000 102 675 3,220 11,700 47,200 h 127
<br /> V3 12/08/03 7 61 <0 5*
<br /> V4 05/02/91 938 32 10 -2268 005 31,000 58,000 5,700 29,000 200,000
<br /> V4 07/16-17/91 938 33 06 -2365 0 04 Not sampled-LPH
<br /> i
<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 09 001 Not sampled-LPH
<br /> V4 08113/92 938 3360 -2417 007 Not sampled-LPH
<br /> V4 10/08/92 938 3420 -2473 012 Not sampled-LPH
<br /> V4 02/23/93 938 3085 -2147 000 15,000 35,000 4,300 23,000 150,000 --
<br /> 6�projccts1739421mas1er4p\g1203139421,w x1s Page 48 of 51
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