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' • Ta • <br /> Groundwater MonitoringVDaaand Analytical Results <br /> Tosco(Unocal) Service Station#6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> Well <br /> ID/ Date DTW GWE TPH(G) T E X 1V1T1✓ <br /> TOC* (ft) (ft) (Ppb) (PPb) (Ppb) (ppb) (ppb) (ppb) <br /> MW-2 10/16/97 3608 -2452 12,000 3,500 200 170 640 <500/1206 <br /> (cont) 12/08/97 36 14 -24 58 -- -- -- 5 - <br /> 03/05/98 3268 -21 12 10,000 1,900 <50 L50 180 28/2 006 <br /> 05/27/98 2931 -17 75 8,600 1,400 18 56 65 47/2706 <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 /> 01125-26199 2843 -16 87 2,200 610 21 24 72 270/1706 <br /> 04/19-20199 26 10 -1454 1 700 440 20 18 57 310/1806 <br /> 07115-16/99 2737 -15 81 620 130 <25 5 1 17 120/1806 <br /> 11 56 10125-26199 2907 -1751 71013 120 21 60 29 240/2006 <br /> MW-3 02/21/90 -- -- 3,400 <05 <0 5 <05 095 -- <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 -- -- -- - - --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 /> 11 51 04/26/93 50 53 -3902 1,900 27 <5 0 <5 0 <5 0 -- <br /> 07/26/93 51 51 -4000 1,300 78 15 <50 14 -- <br /> 10/20/93 5205 -4054 1,400' 44 <10 <10 <10 -- <br /> 01/17-18194 4956 -3805 1,200 30 8 8 24 94 -- <br /> 04/25-26194 4745 -3594 650 13 20 <05 1 7 -- <br /> 07125-26194 INACCESSIBLE -- -- -- -- -- -- <br /> 10126-27/94 5104 -39 53 140 1 4 <05 <05 1 1 -- <br /> 01/25-26195 4837 -36 86 54 <05 <0 5 <0 5 <0 5 -- <br /> 04/26-27195 4358 -3207 <50 <05 074 <0 5 1 1 -- <br /> 07/27/95 4470 -33 19 <50 <05 <0 5 <05 <05 -- <br /> 10/25-26/95 45 59 -3408 -- -- -- -- -- "- <br /> 6981 xis/#180138 3 As of 10/26/99 <br />