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T� <br /> Groundwater MonitoringWand and Analytical Results <br /> Former Tosco(Unocal)Service Station#6981 <br /> 4707 Pacific Avenue <br /> Stockton,California <br /> WELL IDI DATE DTW S.I GWE TPH-G B T E X MTBE <br /> TOC*(R) Ut) (Abgs) Ul) (Ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> MW-5 10/20/93 5235 500-550 -4059 21,000 15,000 120 <50 68 -- <br /> (cont) 01117-18194 4993 -3807 23,000 13,000 100 <50 75 -- <br /> 04/25-26/94 4775 -3599 16,000 12,000 92 31 70 -- <br /> 07/25-26/94 5016 -3840 NOT SAMPLED DUE TO CONSTRUCTION -- - <br /> 10126-27/94 5126 -3950 13,000 10,000 790 <20 270 -- <br /> 01/25-26195 4862 -3686 5,000 3,700 27 <0 5 44 -- <br /> 04/26-27195 4397 -3221 2,900 650 12 23 16 - <br /> 07/27/95 4503 -3327 150 21 24 <1 0 1 9 -- <br /> 10125-26195 4992 -38 16 -- -- -- -- -01/25196 43 11 -3135 86 69 085 <0 5 084 - a <br /> 04/25/96 3831 -2655 -- - -- -- -- -- <br /> 07/24/96 3868 -2692 <50 <0 5 <0 5 <0 5 <0 5 69/696 <br /> 10/23/96 4053 -2877 SAMPLED SEMI-ANNUALLY - -- -- - <br /> 01/20/97 3682 -2506 <50 <0 5 <05 <0 5 <0 5 25 <br /> 07/16/97 3432 -2256 <50 <0 5 <0 5 <0 5 <0 5 34 <br /> 10/15/97 3618 -2442 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 12/08/97 3605 -2429 - -- - - -- - <br /> 03/05/98 3166 -1990 <50 <0 50 <0 50 <0 50 <0 50 231186 <br /> 05/27/98 2828 -1652 <50 <0 50 <0 50 <0 50 <0 50 8 1/7 86 <br /> 07/21/98 2840 -1664 <50 <0 50 20 <0 50 21 50/45 6 <br /> 10/14/98 2942 -1766 <50 <0 50 <0 50 <0 50 <0 50 6 012 96 <br /> 01125-26199 2856 -1680 <50 <0 50 <0 50 <0 50 <0 50 35/42 6 <br /> 04119-20/99 2611 -1435 <50 <0 50 <0 50 <0 50 <0 50 28/22 6 <br /> 07/15-16/99 2751 -1575 <50 <0 50 <0 50 <0 50 <0 50 <2 5/3 66 <br /> 1176 10125-26199 2917 -1741 <50 <0 50 <0 50 <0 50 <0 50 <2 5/136 <br /> 01/27-28100 2870 -1694 <50 072 078 <0 50 10 <2 5/<2 06 <br /> 06/26-27100 2590 -1414 <50 0 <0 500 442 <0 500 3 14 <5 00/<200 6 <br /> 1152 09/22-23/00 2822 -1670 <50 074 060 <0 50 <0 50 <2 51<2 06 <br /> 12/26-27/00 28 16 -1664 <50 0 1 14 <0 500 <0 500 <0 500 <5 001<2 006 <br /> 03/07-08101 2788 -1636 <50 0 100 <0 500 <0 500 <0 500 <5 0012 386 <br /> 06126-27101 2885 -1733 <50 <0 50 <0 50 <0 50 <0 50 <5 0/<2 06 <br /> 09/12-13/01 3078 -1926 <50 <0 50 95 <0 50 <0 50 <5 0/<2 06 <br /> 6981 xls/#180138 7 As of 09/13/01 <br />