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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 ( 2) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date (feet) (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> SW2 08/19/98 <br /> SW2 11/18/98 -- __ - -- - -- -- - <br /> -- -- -- -- -- -- <br /> SW2 03/30/99 -_- <br /> -- -- -- -- -- -- <br /> SW2 05/05/99 <br /> -- -- -- -- -- -- <br /> SW2 08/20/99 <br /> SW2 12/06/99 -- <br /> SW2 02/29/00 <br /> -- -- -- -- -- -- -- <br /> SW2 05/16/00 -- -- __ -- - <br /> SW2 09/11/00SW2 12/13/00 <br /> SW2 03/08/01 - <br /> -- -- -- -- -- -- -- <br /> SW2 06/21/01 <br /> SW2 09/20/01 __ -- -- -- -- -- <br /> SW2 12/04/01 753 1850 -1097 000 <br /> SW2 03/05/02 753 -- -- <br /> SW2 06/11/02 753 <br /> SW2 09/10/02 753 -- <br /> VI <br /> _V1 05/02/91 857 3174 -23 17 000 20,000 49,000 4,700 25,000 130,000 <br /> VI 07116-17/9I 857 3270 -24 13 000 14,000 44,000 3,000 15,000 170,000 <br /> V1 10/15/91 857 3325 -2468 000 18,000 51,000 4,200 23,000 200,000 <br /> Vi 01/28/92 857 3151 -2294 Sheen 20,000 58,000 2,400 23,000 150,000 <br /> VI 04/30/92 857 31 12 -2255 000 15,000 43,000 3,000 18,000 130,000 <br /> VI 08/13/92 857 33 17 -2460 000 12,000 44,000 3,600 20,000 180,000 <br /> VI 10/08/92 857 3376 -25 18 001 Not sampled-LPH <br /> V 1 02/23/93 857 3047 -2190 000 9,800 19,000 3,700 18,000 100,000 -- <br /> V1 05/18/93 857 -- __ _ <br /> V 1 08/22/93 857 2970 -21 13 000 <br /> V 1 12/30/93 957 2905 -2048 000 -_ <br /> VI 02/17/94 857 2873 -2016 000 -- _- __ <br /> V1 05/10/94 857 2833 -1976 000 8,200 37,000 3,600 17,000 110,000 <br /> VI 08/02/94 857 -- __ <br /> V l 11/01/94 857 3005 -2148 000 -- <br /> V 1 02/17/95 857 2763 -1906 000 <br /> g 1projects1739425master%wp1g090213942gw As <br /> Page 33 of 41 <br /> I i <br />