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i <br /> TABLE 2 GROUNDWATER MONITORING DATA,FORMER EXXON RS 7-3942,4444 NORTH PERSHING AVENUE,STOCKTON,CALIFORNIA <br /> Casing Depth Groundwater LPH Concentration(pg/L) <br /> Well Elevation to Water Elevation Thickness EthyI- <br /> Number Date feet feet feet feet Benzene Toluene benzene Xylenes TPH-g MTBE <br /> MW7 08/20/99 685 1575 -890 000 -- -- -- -- -- <br /> MW7 12/06/99 685 1597 -912 000 <1 <1 <I <1 92 <1 <br /> MW7 02/29/00 6 85 1351 -666 000 16 <I <1 <1 64 <1 <br /> MW7 05/16/00 6 85 1365 -680 0 00 <1 <1 <1 <1 <50 <1 <br /> MW7 09/11/00 6 85 1592 -907 0 00 <0 5 <0 5 <0 5 <0 5 53 <0 5 <br /> MW7 12/13/00 685 1583 -898 000 0 76 28 063 3 09 <50 <0 5 <br /> MW7 03/08/01 6 85 1497 -8 12 000 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <br /> MW7 06/21/01 6 85 1633 -948 000 <0 5 <0 5 <0 5 <0 5 <50 <0 5 <br /> MW7 09/20/01 6 85 1682 -997 000 -- -- -- -- -- -- <br /> MW7 12/04/01 6 80 17 18 -1038 000 -- -- -- -- -- -- <br /> MW7 03/05/02 680 1635 -9 55 000 <0 5 <0 5 <0 5 <0 5 <50 h <0 5 <br /> MW7 06/11/02 680 -- -- -- -- -- -- -- <br /> MW7 09/10/02 680 1800 -1120 000 -- -- -- -- -- -- <br /> MW7 12/18/02 6 80 1773 -1093 000 -- -- -- -- -- -- <br /> MW7 03/24/03 6 80 1725 -1045 000 <0 5 <0 5 <0 5 <0 5 <50 h <0 5 <br /> MW7 06/11/03 680 1738 -1058 000 -- -- -- -- -- -- <br /> MW7 09/17/03 680 1871 -1191 000 -- -- -- -- -- -- <br /> MW7 12/08/03 6 80 1874 -1194 000 -- -- -- -- -- -- <br /> MW7 03/02/04 680 1724 -1044 000 <0 5 <0 5 <0 5 <0 5 <50 h <0 5 <br /> MW7 06/28/04 680 1839 -1159 000 -- -- -- -- -- -- <br /> MW7 09/27/04 680 1918 -1238 000 -- -- -- -- -- -- <br /> MW8 04/11/88 778 2025 -1247 000 740 18,000 5,700 32,000 120,000 -- <br /> MW8 09/13/88 778 2258 -1480 0 00 470 11,000 3,900 20,000 56,000 -- <br /> MW8 11/16/88 778 2272 -1494 000 <500 9,300 3,600 16,000 63,000 -- <br /> MW8 02/09/89 778 2228 -1450 000 650 13,000 3,900 21,000 62,500 -- <br /> MW8 05/31/89 778 2395 -16 17 000 460 8,700 3,700 24,000 66,000 -- <br /> MW8 08/17/89 778 2549 -1771 000 620 10,000 5,500 25,000 72,000 -- <br /> MW8 12/19/89 778 2660 -1882 000 190 2,800 1,100 5,300 21,000 -- <br /> MW8 03/21/90 778 27 11 -1933 000 880 11,000 4,400 22,000 63,000 -- <br /> MW8 05/17/90 778 27 87 -2009 000 520 5,500 3,900 20,000 67,000 -- <br /> MW8 09/25/90 778 29 17 -2139 000 -- -- -- -- -- -- <br /> S 1projccrs1739421masterlwp1g090413942gw x1s Page 16 of 56 <br />