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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 /> Vi 06/11/02 758 18 15 -1057 Sheen 3,650 9,870 2,080 9,260 62,100 h 600
<br /> VI 06/11/02 758 <25*
<br /> VI 09/10/02 758 1935 -1177 000 5,590 19,300 3,270 15,600 104,000 h 180
<br /> VI 09/10/02 758 <50*
<br /> Vl 12/18/02 758 1920 -1162 000 3,160 12,000 2,160 10,400 56,200 h <50
<br /> VI 03/24/03 758 1865 -1107 000 2,490 7,280 1,820 8,020 50,500 h <25
<br /> VI 06/11/03 758 18 75 -11 17 000 2,660 7,160 2,000 8,100 48,100 h 558
<br /> V1 06/11/03 758 <5*
<br /> V1 09/17/03 758 2013 -1255 000 3,390 9,340 2,550 10,300 58,800 h 105
<br /> V1 09/17/03 758 <5*
<br /> VI 12/08/03 758 2010 -1252 000 3,030 8,020 2,440 9,010 62,600 h 250
<br /> VI 12/08/03 758 <5*
<br /> V1 03/02/04 758 1875 -11 17 000 3,580 10,100 3,080 12,600 70,100 h 935
<br /> Vl 03/02/04 758 <10*
<br /> VI 06/28/04 758 1981 -1223 000 -- -- -- __ -- --
<br /> VI
<br /> _VI 06/29/04 758 -- -- -- 2,460 9,300 2,150 9,370 57,400 h <0 5*
<br /> VI 09/27/04 758 2070 -13 12 000 -- -- __ __ -
<br /> -V1 09/28/04 758 -- -- -- 2,980 8,820 2,360 9,500 57,600 h <0 5*
<br /> vi 12/01/04 758 2032 -1274 000 -- -- -- __ __ --
<br /> VI
<br /> _V1 12/02/04 758 -- -- -- 5,100 4,260 1,260 3,620 39,700 h <0 5*
<br /> V1 03/24/05 758 1846 -1088 000 2,070 6,340 1,980 7,430 40,700 h <0 5*
<br /> V1 06/22/05 758 1847 -1089 000 -- -- - - _ --
<br /> V1 1 06/23/05 758 -- - -- 3,150 9,710 2,860 10,800 60,800 h <0 5-
<br /> V2 05/02/91 930 3262 -2332 000 -- -- -- __ -_ --
<br /> V2 07116-17191 930 3357 -2427 000 -- -- __ __ -_ ._
<br /> V2 10/15/91 930 3408 -2478 000 27,000 43,000 4,300 22,000 I90,000 --
<br /> V2 01/28/92 930 32 38 -2308 000 27,000 42,000 5,100 25,000 150,000 --
<br /> V2 04/30/92 930 3203 -2273 000 27,000 37,000 3,700 17,000 140,000 --
<br /> V2 08/13/92 930 3399 -2469 000 28,000 49,000 5,600 28,000 220,000 --
<br /> V2 10/08/92 930 3457 -2526 002 Not sampled-LPH
<br /> V2 02/23/93 930 3137 -2207 000 -- __ __ __
<br /> V2 05/18/93 930 -- -- __
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