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Groundwater Monitoring And Analytical Results ti <br /> 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* OW (ft bgs) (msl) (Ppb) (Ppb) (ppb) (ppb) (ppb) (Pleb) <br /> MW-2 01/t7-18194 4974 51 0-55 0 -3818 14,000 1,800 31 29 120 -- <br /> (cont) 04/25-26/94 4761 -3605 21,000 8,000 240 93 220 -- <br /> 07/25-26194 5007 -3851 NOT SAMPLED-(CONSTRUCTION) -- - - <br /> 10/26-27/94 5125 -3969 24,000 11,000 3,100 96 3,200 -- <br /> 01125-26195 4849 -3693 8,600 4,100 94 35 130 -- <br /> 04/26-27195 4388 -3232 11,000 5,300 460 74 530 <br /> 07/27/95 44 95 -3339 3,300 640 26 <125 13 -- <br /> 10/25-26195 4584 -3428 -- -- -- - -- <br /> 01/25/96 4305 -3149 2 100 510 29 <10 11 --� <br /> 04/25/96 3822 -2666 -- <br /> 07/24/96 3860 -2704 1,300 470 110 16 75 36 <br /> 10/23/96 4043 -2887 SAMPLED SEMI-ANNUALLY - -- -- "" <br /> 01/21/97 3693 -2537 250 72 13 45 16 18 <br /> 07/17/97 3424 -2268 16,000 3,900 220 180 390 <250 <br /> 10/16/97 3608 -2452 12,000 3,500 200 170 640 <500/120' <br /> 12/08/97 3614 -2459 -- -- - ' <br /> 03/05/98 3268 -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 2831 -1675 490 85 56 29 24 220/1806 <br /> 10/14/98 2926 -1770 2,900 620 17 36 56 380/1906 <br /> 01125-26199 2843 -1687 2,200 610 21 24 72 270/1706 <br /> 04119-20/99 2610 -1454 1,700 440 20 18 57 310/1806 <br /> 07/15-16/99 2737 -1581 620 130 <2 5 51 17 120/1806 <br /> 1156 10/25-26199 2907 47 51 7103 120 21 60 29 240/2006 <br /> 01127-28/00 2853 -1697 49033 62 20 52 24 170/1406 <br /> 06/26-27/00 2584 -1428 48913 380 300 <0 500 532 107/87 96 <br /> 12 13 09122-23100 2901 -1688 8,00016 <20 <20 <20 370 120/1006 <br /> 12126-27100 2890 -1677 5,27016 476 107 <10 0 217 <100178 56 <br /> 03/07-08/0 t 2859 -1646 86113 428 259 <2 50 170 67 1173 26 <br /> 06/26-27/01 2965 -1752 40013 27 21 11 10 531476 <br /> I <br /> 6981 x1s1#180138 3 As of 06/27/01 <br /> I <br />