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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(µg/L) <br /> Well Elevation to Water Elevation Thickness Ethyl- <br /> Number Date feet feet feet (feet)-_ Benzene Toluene benzene Xylenes TPH-g MTBE <br /> MW2 04/18/96 877 2098 -1221 000 -- -- -- -- -- -- <br /> MW2 08/08/96 877 2275 -1398 000 19 <0 5 41 11 490 68 <br /> MW2 11/04/96 877 2277 -1400 0 00 25 <0 5 65 14 810 21 <br /> MW2 02/03/97 977 1861 -984 000 -- -- -- -- -- -- <br /> MW2 05/08/97 749 1825 -1076 000 12 <0 5 1 1 <0 5 73 <2 5 <br /> MW2 08/26/97 749 2003 -1254 000 -- -- -- -- -- -- <br /> MW2 11/11/97 749 2056 -1307 000 3 2 <0 5 3 4 071 160 5 2 <br /> MW2 03/03/98 749 1490 -741 000 14 <0 5 12 <0 5 110 3 3 <br /> MW2 03/03/98 749 <2 0* <br /> MW2 05/20/98 749 1486 -737 000 15 <0 5 1 1 <0 5 110e 41 <br /> MW2 05/20/98 749 <2 0* <br /> MW2 08/19/98 749 1636 -887 000 <0 5 2 1 12 <0 5 110 <2 5 <br /> MW2 08/19/98 749 <2 0* <br /> MW2 11/18/98 749 1673 -924 000 -- -- -- -- -- -- <br /> MW2 03/30/99 749 -- -- -- -- -- -- -- -- -- <br /> MW2 05/05/99 749 1520 -771 000 -- -- -- -- -- -- <br /> MW2 08/20/99 749 1668 -919 000 101 456 808 242 253 681 <br /> MW2 12/06/99 749 1688 -939 000 <1 <1 <1 <1 52 <1 <br /> MW2 02/29/00 749 1442 -693 000 <1 <1 <1 <1 <50 <1 <br /> MW2 05/16/00 749 1445 -696 000 <1 <1 <1 <1 <50 <1 <br /> MW2 09/11/00 749 1682 -933 000 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <br /> MW2 12/13/00 749 1667 -9 18 000 2 6 1 5 9 69 <0 5 <br /> MW2 03/08/01 749 15 81 -832 000 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <br /> MW2 06/21/01 749 17 15 -966 000 <0 5 <0 5 <0 5 <0 5 81 12 <br /> MW2 06/21/01 749 <5* <br /> MW2 09/20/01 749 1781 -1032 000 -- -- -- -- -- -- <br /> MW2 12/04/01 7 15 1779 -1064 000 096 <0 5 <0 5 <0 5 61 10* <br /> MW2 03/05/02 7 15 1655 -940 000 170 <0 5 <0 5 <0 5 101 h 190 <br /> MW2 03/05/02 7 15 <0 5* <br /> MW2 06/11/02 7 15 1749 -1034 000 -- -- -- -- -- -- <br /> MW2 09/10/02 7 15 1860 -1145 000 <0 5 <0 5 <0 5 <0 5 <50 h <0 5 <br /> MW2 12/18/02 7 15 1834 -11 19 000 1 1 <0 5 <0 5 <0 5 700 h <0 5 <br /> MW2 03/24/03 7 15 1786 -1071 000 130 <0 5 <0 5 <0 5 945 h <0 5 <br /> I <br /> g 1proaects1739425masterlwplq 120513942gw xis Page 6 of 59 <br />