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i Table 1 Groundwater Monitoring Data and Analytical Results 1 Former Tosco(Unocal)Service Station#6981 4707 Pacific Avenue Stockton,Caltforma l WELL ID/ DATE DTW SIT GWE TPH-G B T E X MTBE , TOC-(#,) (li? (t.bgs) (l�) (ppb) (P b) (Ppb) (P b) b) (Ppb) �I MW-9 12/26-27/00 28 19 50 0-70 0 -1643 <50 0 <0 500 <0 500 <0 500 <0 500 ii <5 0012 356 -16 15 <50 0 <0 500 <0 500 <0 SOfl <0 500 -�i <5 0013 206 (cont) 03/07-08/01 2791 <0 54 i4 <5 0/<2 06 06/26-27101 2882 -1706 <50 <0 50 <0 50 <0 50 -18 96 <50 094 <0 50 <0 50 <0 50 i� <5 0/<2 06 09112-13101 30 72 <5 01<1 01 2/12-13/O1 31 0$ -19 32 <50 <0 50 <0 50 <0 50 <0 50 03120-21/02 2986 -18 10 <50 <0 50 <0 50 <0 50 <0 50 <5 0/<2 06 06106-07102 30 31 -18 55 <50 <0 50 <0 50 <0 50 <1 0 --/<2 O6 " 09/30/0218 3264 -2088 160 55 82 45 20 k <2 0 12130-31/02 20 3285 -21 09 -- -- I <2 0 03/29-30103" 3141 -1965 <50 <0 50 <0 50 <0 50 <1 0 06125-2610318 31 66 -19 90 <50 <0 50 <0 50 <0 50 <1 0 j <2 fl Il MW-19 10/21-22/92 -- 50 0-70 0 -- <50 <0 5 <0 5 <0 5 <0 5 ;I -- -- -- <50 <0 5 <0 5 <0 5 <015 _ 01/13/93 1044 •4126�3 1 4825 -3781 <50 <0 5 <0 5 <0 5 <0 5 1 -- 07/26/93 4922 -3878 <50 <0 5 <0 5 <0 5 <0 5 -- 10/20/93 4968 -3924 <50 <0 5 <0 5 <0 5 <0 501/17-18/94 2 4729 — -3685 250 42 30 12 531 -- <50 <0 5 <0 5 <0 5 <0 5 02!28194' 46 24 -35 80 -- 04125-26194 4530 -3486 <50 <0 5 <0 5 <0 5 1 11 -- 07125-26194 4769 -3724 <50 <0 5 <0 5 45 <0 5 -- 10126-27194 4877 -3833 <50 <0 5 <0 5 <0 5 <0 5p -- 01/25-26195 46 11 -3567 <50 <0 5 062 <0 5 082 -- 04/26-27/95 41 78 -31 34 <50 <0 5 <0 5 <0 5 <0 5 - 07/26/95 4262 -32 18 <50 065 - 23 <0 15 251 -- 10/25-26195 4344 -3300 <50 <0 5 063 <0 5 072 01/24/96 4079 -3035 <50 <0 5 <0 5 <0 5 <0 5 -- 04/25/96 3632 -25 $$ <50 <0 5 <0 5 <0 5 <0 5 II <40 DESTROYED ,I II II it 6981 x1s)*38 AO/26103 I