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i Ta • <br /> Groundwater Monitoring ata and Analytical Results <br /> Tosco (Unocal) Service Station#6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> Well 1D/ DAL D 1 11 G11 L 1 1,11(G) B 1 L AI 1'BE <br /> TOC* (ft ) (ft ) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> MW-2 12/08/97 36 14 -2458 <br /> (Cont) 03/05/98 32 68 -21 12 10,000 1,900 <50 150 180 280/3006 <br /> 05/27/98 2931 -1775 8,600 1,400 18 56 65 4712706 <br /> 07/21/98 28 31 -1675 490 85 5 6 29 24 220/1806 <br /> 10/14/98 2926 -1770 2,900 620 17 36 56 380/1906 <br /> 01125-26/99 2843 -1687 2,200 610 21 24 72 270/170 <br /> I <br /> MW-3 02/21/90 -- -- 3,400 <0 5 <05 <0 5 095 -- <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 /> 10/21-22/92 DRY -- <br /> 01/13/93 DRY <br /> 1151 04/26/93 5053 -3902 1,900 27 <5 0 <50 <5 0 <br /> 07/26/93 51 51 -4000 1,300 78 15 <5 0 14 -- <br /> 10/20/93 5205 -4054 1,400` 44 <10 <10 <10 -- <br /> 01/17-18194 49 56 -3805 1,200 30 88 24 94 <br /> 04/25-26/94 4745 -3594 650 13 20 <05 1 7 <br /> 07/25-26194 INACCESSIBLE - <br /> 10/26-27/94 51 04 -39 53 I40 1 4 <05 <05 1 1 <br /> 01/25-26/95 4837 -36 86 54 <05 <05 <05 <05 <br /> 04126-27/95 43 58 -3207 <50 <0 5 074 <05 1 1 -- <br /> 07/27/95 4470 -33 19 <50 <05 <0 5 <0 5 <0 5 <br /> 10/25-26195 4559 -34 08 <br /> 01/24/96 4264 -31 13 <50 <05 <05 <05 <05 <br /> 04/25/96 37 92 -2641 SAMPLED SEMI-ANNUALLY <br /> 07/24/96 DESTROYED -- _ <br /> 6981 xls/#180138 3 As of 01/26/99 <br /> I <br />