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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 L
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date feet feet feet feet Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> V4 06/11/03 812 1908 -1096 Sheen 738 22,700 3,340 14,400 87,500 h 838
<br /> V4 06/11/03 812 <5*
<br /> V4 09/17/03 8 12 2047 -1235 000 590 17,800 3,330 14,900 84,500 h 130
<br /> V4 09/17/03 812 <5*
<br /> V4 12/08/03 8 12 2046 -1233 001 675 21,000 3,980 16,900 107,000 h <25
<br /> V4 03/02/04 8 12 1894 -1082 000 690 20,000 4,200 18,800 99,700 It 1,100
<br /> V4 03/02/04 812 <25*
<br /> V4 06/28/04 8 12 20 07 -1195 000 -- -- -- -- --
<br /> V4 06/29/04 8 12 -- -- -- 279 17,300 3,910 16,600 106,000 h <0 5
<br /> V4 09/27/04 8 12 2089 -1276 000 -- -- -- -_ --
<br /> V4 09/28/04 812 -- -- -- 480 19,300 3,300 15,400 92,200 h 820
<br /> V4 09/28/04 8 12 <0 5*
<br /> V4 12/01/04 8 12 2055 -1243 000 -- -- -- -- --
<br /> V4 12/02/04 812 -- -- -- 260 9,660 1,780 7,950 47,900 h 156
<br /> V4 12/02/04 812 <25*
<br /> V4 03/24/05 8 12 1870 -1058 000 -- -- -- -_ --
<br /> V4 03/25/05 812 -- -- -- 320 14,300 2,760 11,600 68,600 h <10
<br /> V4 06/22/05 8 12 18.73 -10.61 000 - -- - - -
<br /> V4 06/23/05 812 -- - -- 370 16,800 3,930 16,700 88,000 h 136
<br /> V4 06/23/05 8.12 <1*
<br /> IP1A 09/27/04 --
<br /> IP1A g 09/28/04 -- -- -- -- 2,610 14,400 2,590 13,300 78,000 h <0 5*
<br /> IP1A g 12/03/04 -- -- -- -- 1,980 18,900 5,920 28,800 250,000 h 360
<br /> IPIA 12/03/04 <50*
<br /> 1P1A g 03/25/05 793 -- -- 924 5,790 1,790 6,480 55,200 h 154
<br /> IP1A 03/25/05 793 <5*
<br /> IP1A 06/22/05 793
<br /> IP1A g 06/23/05 793 --
<br /> 1,400 15,000 4,730 26,200 60,800 h <50
<br /> IPIB 09/27/04 -- 2150 -- __ --
<br /> IP113 g 09/28/04 -- -- -- 5,470 18,800 2,280 11,200 87,200 h <0 5*
<br /> IP1B g 12/03/04 -- 2050 -- -- 7,760 25,000 2,930 14,500 154,000 h 100
<br /> t
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