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T 1 , <br /> i Groundwater Monitoring <br /> and Analytical Results <br /> Former Tosco(Unocal)Service Station#6981 <br /> 4707 Pacific Avenue <br /> Stockton,California <br /> WELL IDI DATE DTW S.1 GWE TPH-G B T E X MTBE <br /> TOC*(ft) (ft) (ft b8s) (ft) (ppb) (ppb) (Ppb) (ppb) (ppb) (Ppb) <br /> MW-3 07/27/95 4470 52 0-55 0 -33 19 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> (cont) 10/25-26195 4559 -3408 <br /> 01/24/96 4264 -31 13 <50 <0 5 <0 5 <0 5 <0 5 <br /> 04/25/96 3792 -2641 SAMPLED SEMI-ANNUALLY <br /> DESTROYED <br /> MW-4 02/21/90 51 0-55 0 - 2,600 27 10 1 2 15 -- <br /> 10/18/90 DRY <br /> 11/19/90 DRY <br /> 12/27/90 DRY <br /> 01/28/91 DRY <br /> 04/02/91 DRY <br /> 07/18/91 DRY -- -- -- -- -- -- <br /> 09/30/91 DRY -- -- -- -- -- -- -- <br /> 11/14/91 DRY -- -- -- -- - -- -- <br /> 04/16/92 DRY - - -- - - -- -- <br /> 07/30/92 DRY - -- -- - <br /> 10/21-22192 DRY -- -- <br /> 01/13/93 DRY -- -- -- --1163 04/26/93 5052 -3889 11,000 1,400 <50 <50 <50 -- <br /> 07/26/93 5154 -3991 5,700 800 16 22 <125 -- <br /> 10/20/93 5203 -4040 3,600' 490 <20 <20 <20 -- <br /> 01/17-18194 4953 -3790 3,800 160 47 23 110 -- <br /> 04/25-26194 4743 -3580 2,200 200 50 <10 72 -- <br /> 07/25-26194 4988 -3825 850 74 24 <0 5 61 -- <br /> 10/26-27194 5104 -3941 650 20 22 <1 0 46 <br /> 01/25-26/95 4829 -3666 240 24 <0 5 <0 5 094 -- <br /> 04/26-27/95 4383 -3220 250 24 071 <0 5 15 - <br /> 07/27/95 4482 -33 19 130 15 1 7 <0 5 21 -- <br /> 10/25-26195 4567 -3404 -- -- -- -- ' <br /> 01/25/96 4282 -31 19 <50 14 <0 5 <0 5 <0 5 --' <br /> 6981 xls/#180138 5 As of 09/30/02 <br />