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Tal <br /> Groundwater Monitonngm and Analytical Results <br /> Former Tosco(Unocal)Service Station#6981 <br /> 4707 Pacific Avenue <br /> Stockton,California <br /> WELL In/ DATE DTW $,I, OW9 TP111z 6 it T E X MTBE <br /> TOC*11) 02 (ALMS) (1 ;' Opb) 4rpb tppp) tpofib) (PA. <br /> MW-1 02/21/90 -- 51 0-55 0 -- 660 17 19 <0 5 056 -- <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 /> 1041 04/26/93 4912 -3871 1,400 16 <5 0 <5 0 <5 0 -- <br /> 07/26/93 5013 -3972 550 12 95 <1 0 75 -- <br /> 10/20/93 5065 -4024 440 05 099 <0 5 21 -- <br /> 01/17-18/94 4818 -3777 990 15 10 39 150 -- <br /> 04/25-26/94 4610 -3569 180 21 17 <0 5 15 -- <br /> 07125-26/94 4845 -3804 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 10/26-27/94 4966 -3925 68' 40 <0 5 <0 5 <0 5 -- <br /> 01/25-26/95 4728 -3687 <50 <0 5 <0 5 <0 5 <0 5 -- <br /> 04/26-27/95 4232 -3191 <50 <0 5 064 <0 5 075 -- <br /> 07/26/95 4335 -3294 <50 <0 5 064 <0 5 084 -- <br /> 10/25-26/95 4423 -3382 -- -- -- -- -- -- <br /> 01/24/96 4141 -3100 <250 <2 5 <2 5 <2 5 <2 5 —s <br /> 04/25/96 3675 -2634 -- -- -- -- -- -- <br /> 07/24/96 3715 -2674 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 10/23/96 3888 -2847 SAMPLED SEMI-ANNUALLY -- --01/20/97 3552 -2511 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 07/16/97 3272 -2231 <50 <0 5 <0 5 <0 5 <0 5 <5 0 <br /> 10115197° INACCESSIBLE -- - -- -- -- -- -- <br /> 12/08/97° INACCESSIBLE -- -- -- -- -- -- -- <br /> 6981 x1s/#180138 1 As of 03/21/02 <br />