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<br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHfNG AVENUE,STOCKTON,CALIFORNIA
<br /> Casing Depth Groundwater LPH Concentration
<br /> Well Elevation to Water Elevation Thickness Ethyl-
<br /> Number Date feet feet feet feet Benzene Toluene benzene Xylenes TPH-g MTBE
<br /> I
<br /> V2 06/11/03 811 <25*
<br /> V2 09/17/03 8 11 2077 -1266 000 5,930 11,800 2,990 11,400 76,200 h 190
<br /> V2 09/17/03 811 <25*
<br /> V2 12/08/03 8 11 2072 -1260 001 6,960 21,000 3,340 13,700 113,000 h <25
<br /> V2 03/02/04 8 11 1920 -1109 000 8,000 19,200 3,760 15,400 107,000 h 1,930
<br /> V2 03/02/04 811 <25*
<br /> V2 06/28/04 811 2036 -1225 000 - - - - _._
<br /> V2 06/29/04 811 - - -- 7,200 16,000 3,460 12,400 95,800 h 0 8
<br /> V2 06/29/04 8.11 <0 5*
<br /> V3 05/02/91 899 3389 -2490 000 1,900 30,000 5,200 26,000 110,000
<br /> V3 07116-17/91 899 3486 -2587 000 840 24,000 3,600 19,000 110,000 --
<br /> V3 10/15/91 899 35 38 -2639 000 1,200 22,000 4,400 22,000 110,000 --
<br /> V3 01/28/92 899 3356 -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 -2697 000 430 11,000 3,200 17,000 100,000 --
<br /> V3 02/23/93 899 3255 -23 56 000 -- -- __
<br /> V3 05/18/93 899 -- -_ __
<br /> V3 08/22/93 899 3133 -2234 0 00
<br /> V3 12/30/93 899 3051 -2152 000 _-
<br /> V3 02/17/94 899 3008 -2109 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 28 93 -1994 000 250 10,000 5,100 23,000 85,000 --
<br /> V3 05/11/95 899 2619 -1720 000 Ito 7,200 4,100 19,000 70,000 --
<br /> V3 08/24/95 899 2734 -1835 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
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