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1 <br /> Table 1 <br /> Groundwater Monitoring Data and Analytical Results <br /> Tosco(Unocal)Service Station 4#6981 <br /> 4707 Pacific Avenue <br /> Stockton,California <br /> WELL IDI DATE DTW S1 GWE TPH•G B T E X MTBE <br /> TOC* (ft) (jt bgs) (msd) (PPb) (ppb) (PPb) (ppb) (ppb) (Ppb) <br /> MW-4 10/14/98 2926 51 0-550 -1763 <50 <0 50 <0 50 <0 50 <0 50 14/10 <br /> (cont) 01125-26199 2847 -1684 <50 <0 50 <0 50 <0 50 <0 50 9511066 <br /> 04119-20/99 2606 -1443 <50 <0 50 <0 50 <0 50 <0 50 62/48 <br /> 6 <br /> 07/15-16199 2736 -1573 <50 <0 50 <0 50 <0 50 <0 50 3 2/4 66 <br /> 1163 10125-26199 2900 -1737 <50 <0 50 071 <0 50 23 52/336 <br /> 01127-28/00 2851 -1688 <50 <0 50 066 <0 50 <0 50 <2 5/<2 0 <br /> 06126-27100 2574 -1411 <50 0 <0 500 1 80 <0 500 1 54 <5 00/<2 006 <br /> 1163 09122-23100 1114 -1651 <50 <0 50 10 <0 50 099 <2 5/<2 06 <br /> 12126-27/00 2819 -1656 <50 0 <0 500 <0 500 <0 500 <0 500 <5 001<2 006 <br /> 03/07-08101 2793 -1630 <50 0 <0 500 <0 500 <0 500 <0 500 <5 00/<2 006 <br /> 06126-27101 2888 -1725 <50 <0 50 <0 50 <0 50 <0 50 <5 01<2 06 <br /> MW-5 02/21/90 -- 50 0-55 0 -- 3,600 77 16 05 17 -- <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 /> 11 76 04/26/93 5082 -3906 60,000 28,000 <250 <250 <250 -- <br /> 07/26/93 5181 -4005 43,000 19,000 240 <125 <125i -- <br /> 10/20/93 5235 -4059 21,000 15,000 120 <50 68 -- <br /> 01/17-18/94 4983 -3807 23,000 13,000 100 <50 75 -- <br /> 04/25-26/94 4775 -3599 16,000 12,000 92 31 70 -- <br /> 07/25-26194 5016 -3840 NOT SAMPLED-(CONSTRUCTION) -- -- -- <br /> 6991 x1s1#198 60 As'07101 <br />