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Tab* • <br /> Groundwater Monitoring Data and Analytical Results <br /> Tosco (Unocal) Service Station#6981 <br /> 4707 Pacific Avenue <br /> Stockton, California <br /> Well ID/ Date DTW GWE TPN(G) B T E X 11iTBE <br /> TOC* (ft} (ft) b) �p b) (ppb) (ppb) (ppb) (ppb) <br /> MWA 10/14/98 27 75 -1734 <so <0 50 <0 50 <0 50 069 211206 <br /> (cont) 01125-26199 2704 -1663 <50 <0 50 <0 50 <0 50 <0 50 621536 <br /> 04119-20/99 2453 -1412 <50 <0 50 <0 50 <0 50 <0 50 251246 <br /> MW-2 02/21/90 - 12,000 1,900 75 21 140 <br /> 10/18/90 DRY - - -- - - -- -- <br /> 11/19/90 DRY - -- - -- - -- -- <br /> 12/27/90 DRY - - - -- --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 -- -- --1156 04/26/93 5072 -39 16 43 000 8,000 <125 <125 <125 -- <br /> 07/26/93 5172 -40 16 18,000 2,900 47 38 90 - <br /> 10/20/93 52 26 -4070 12,000 2,400 52 <20 60 <br /> 01/17-18/94 4974 -38 18 14,000 1,800 31 29 120 - <br /> 04/25-26194 4761 -3605 21,000 8 000 240 93 220 <br /> 07/25-26/94 5007 -38 51 NOT SAMPLED-(CONSTRUCTION) -- -- -- <br /> 10/26-27/94 5125 -3969 24,000 11,000 3 100 96 3,200 - <br /> 01/25-26/95 4849 -36 93 8,600 4 100 94 35 130 <br /> 04/26-27195 43 88 -32 32 11,000 5,300 460 74 530 - <br /> 07/27/95 4495 -33 39 3,300 640 26 <12 5 13 -- <br /> 10/25-26195 4584 -3428 -- - -- _- <br /> 01/25/96 4305 -31 49 2,100 510 29 <10 11 --3 <br /> 04/25/96 3822 -2666 - - - -- <br /> 07/24/96 3860 -2704 1,300 470 110 16 75 36 <br /> 10/23/96 4043 -28 87 SAMPLED SEMI-ANNUALLY -- -- -- - <br /> 01/21/97 3693 -2537 250 72 13 4 5 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 <500/1206 <br /> 6981 AsIVS0138 2 As of 04/20199 <br />