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Groundwater Monitor n9vand Analytical Results <br /> Tosco(Unocal)Service Station#6981 <br /> 4707 Pacific Avenue <br /> Stockton,California <br /> WELL ID/ DATE DTW S 1 GWE TPH G B T E X MTBE <br /> TOC* (j?) (ft bgs-) (msl) (ppb) fPPb) (ppb) (Ppb) (Ppb) (Ppb) <br /> MW-5 04/25-26/94 4775 500-550 -3599 16,000 12,000 92 31 70 <br /> (Cont) 07/25-26/94 5016 -3840 NOT SAMPLED-(CONSTRUCTION) -- - -- <br /> 10/26-27/94 5126 -3950 13,000 10,000 790 <20 270 -- <br /> 01/25-26/95 4862 -3686 5,000 3,700 27 <0 5 44 -- <br /> 04/26-27/95 4397 -3221 2,900 650 12 23 16 - <br /> 07/27/95 4503 -3327 150 21 24 <1 0 19 - <br /> 10/25-26/95 4992 -38 16 -- -- - - -- - <br /> 01/25/96 43 It -31 35 86 69 085 <0 5 084 3 <br /> 04/25/96 3831 -2655 - - -- - - - <br /> 07/24/96 3869 -2692 <50 <0 5 <0 5 <0 5 <0 5 691696 <br /> 10/23/96 4053 -2877 SAMPLED SEMI-ANNUALLY -- -- -- -- <br /> 01/20/97 3682 -2506 <50 <05 <0 5 <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 <05 <0 5 <0 5 <5 0 <br /> 12/08/97 3605 -2429 -- - - - - - <br /> 03/05/98 31 66 -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 8 117 86 <br /> 07121/98 2840 -1664 <50 <0 50 20 <0 50 21 50145 6 <br /> 10/14/98 2942 -1766 <50 <0 50 <0 50 <0 50 <0 50 6 012 96 <br /> 01/25-26199 2856 -1680 <50 <0 50 <0 50 <0 50 <0 50 35/42 6 <br /> 04/19-20/99 26 11 -1435 <50 <0 50 <0 50 <0 50 <0 50 28/22 6 <br /> 07115-16199 2751 -1575 <50 <0 50 <0 50 <0 50 <0 50 <2 5/3 66 <br /> 1176 10125-26/99 29 17 -1741 <50 <0 50 <0 50 <0 50 <0 50 <2 51136 <br /> 01/27-28/00 2870 -1694 <50 072 078 <0 50 10 <2 5/<2 06 <br /> 06126-27/00 2590 -1414 <50 0 <0 500 442 <0 500 3 14 <5 00/<2 006 <br /> 1152 09/22-23100 2822 -1670 <50 074 060 <0 50 <0 50 <2 5/<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 /> 03/07-08/01 2788 -1636 <50 0 100 <0 500 <0 500 <0 500 <5 00/2.38 <br /> 6981 xis/#180138 7 As of 03/08/01 <br />