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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(ug/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date _- _ (feetj (feet) (feet) (feet) Benzene Toluene benzene Xylenes TPH-g MTBE <br /> SWI. 12/08/03 825 2064 -1239 000 1,720 1,610 416 1,360 18,900 h 789 <br /> SW 1 12/08/03 825 <0 5* <br /> SW1 03/02/04 825 1915 -1090 000 1,520 1,680 379 1,420 13,400 h 179 <br /> SWI 03/02/04 8 25 <5* <br /> SWI 06/28/04 825 2030 -1205 000 -- -- -- -- -- -- <br /> SWI 06/29/04 825 -- -- -- 1,830 1,960 549 1,720 18,400 h <0 5* <br /> SWI 09/27/04 825 21 17 -1292 000 -- -- -- -- -- -- <br /> SWI 09/28/04 825 -- -- -- 2,240 2,050 614 1,880 19,300 h <0 5* <br /> SWI 12/01/04 825 2082 -1257 000 -- -- -- -- -- -- <br /> SWI 12/02/04 825 -- -- -- 946 2,830 788 3,310 20,000 h <0 5* <br /> SWI 03/24/05 825 1898 -1073 0 00 1,760 1,990 469 1,540 17,800 h <0 5* <br /> SWI 06/22/05 825 1902 -1077 000 -- -- -- -- -- -- <br /> SWI 06/23/05 825 -- -- -- 1,990 2,180 548 1,940 17,300 h <0 5* <br /> SWI 10/12/05 $25 2041 -1216 000 -- -- -- -- - -- <br /> SWI 1 10/13/05 8.25 - - - 1,800 1,600 390 1,400 14,000 h <5* <br /> SW2 i 02/17/94 -- 2870 -- 000 660 2,000 770 3,600 29,000 -- <br /> SW2 -- Not accessible since 02/17/94 <br /> SW2 02/17/95 -- 2757 Air sparging well--samples not collected <br /> SW2 05/11/95 -- 24 84 Air sparging well--samples not collected <br /> SW2 08/24/95 -- -- Air sparging well--samples not collected <br /> SW2 10/19/95 -- -- Air sparging well--samples not collected <br /> SW2 02/13/96 -- -- Air sparging well--samples not collected <br /> SW2 04/18/96 -- -- Air sparging well samples not collected <br /> SW2 08/08/96 -- -- Air sparging well--samples not collected <br /> SW2 11/04/96 -- 2372 -- 000 110 <1 2 <1 2 2 0 320 <6 2 <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 /> SW2 I2/18/02 753 -- -- -- -- -- -- -- -- -- <br /> SW2 03/24/03 753 1855 -1102 000 1,360 <5 330 <5 6,980 It 26 0 <br /> SW2 03/24/03 7 53 <2 5* <br /> g 1prajects1739421masterlwplq 100513942gw As Page 42 of 58 <br />