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TABLE3 SUMMARY OF HISTORICAL GROUNDWATER GAUGING AND LABORATORY ANALYTICAL DA7 A Former Tosco Bulk Tenninal No.10013 3505 Navy Drive,Stockton,CA Approximate "•- TOC r Corislrvetrd - Depth to, Grrniiwafer -.: H D ,.'... Benierie, Toluene Btliylbeitune. .:Total Xylenes, Ai",3 HE E'I'fiE TAME 1 BA r lvvfeihanol ter` _ DIPL(pPIL) .. Well Elevation Total Well Groundwater Ele,'valron 7PH G(pg/L) , -? (IrpfL) (µ5�:) (P�-)_ (PFS)._ (Pf5/L) N. Sample Dafe - Number (feet above Depth (feet below -,(feet above yi MSL) '.(feet below. TOC) ".tyisLj EPA Method 8015M kk '. TOC) EPA Method 82608 ..�.. r MW-10 02/18/11 7.46 25 840 -0.94 ftND MW-10 05/11/11 T46 25 8.80 -1.34 NIW-10 09/07/11 746 25 980 -2.34 MW-10 12/06/11 7.46 25 9.92 -2.46 ---MW-10 03/05/12 7,46 25 930 -1.84 ---MW-11 11/21/94 809 25 --- --- ND<50 50 ND<0.50 ND<0.50 --- -- --- - --- -- "' MW-I I 12/02/94(g) 8.09 25 12.09 4.00 --- --- I -- I --- - - --- -- -- -- --- --- - -- MW-II 08/06/97 8.09 25 11.50 -3.41 ND<I00 ND<50 ND<0.50 ND<I.0 NDa1.0 ND<I.0 93 -- --- - --- -'- --- MW-11 01/23/98 8.09 25 9.83 -1.74 360 60 ND<0.50 ND<1.0 ND<I.0 ND<I.0 53 -- -- --- -'- --- --- MW-11 07/10/98 8.09 25 10.04 -1.95 300 ND<50 1,113<0.50 ND<I.0 ND<1.0 ND<1,0 ND<10 --- -- -- -- --- --- MW-11 09/17/98 809 25 11.66 -3.57 320 ND<2.50 ND<2.5 ND<5.0 ND<5.0 ND<5.0 71 - --- --- '- --- --- MW-II 12/30/98 809 25 11.16 -3.07 80 350 ND<L0 ND<I.0 ND<I.0 - ND<I.0 330 --- --- - -- "- --- MW-11 02/16/99 8.09 25 10.60 -2.51 80 ND<250 ND<5.0 ND<5.0 ND<5.0 ND<5.0 25 - --- - --- -- '-- MW-II 06/30/99 8.09 25 10.72 -263 ND<IW 270 ND<I.0 ND<1.0 ND<1.0 ND<1,0 280 -- -- --- --- --- --- MW-Il 08/27/99 8.09 25 11.74 -3.65 ND<200 ND<50 ND<I.0 ND<I.0 ND<I.0 ND<I.0 340 -- --- -- --- --- --- MW-11 11/23/99 8.09 25 12.00 -3.91 ND<350 ND<200 ND<0.3 ND<0.3 ND<0.3 2 230 --- -- -- --- --- --- MW-11 02/18/00 8.09 25 10.25 -2.16 ND<390 ND<50 ND<0 50 ND<0.50 ND<0.50 ND<0.50 140 -- -- --- --- --- --- MW-11 04/26/00 809 25 10.43 -2.34 ND<47 180 ND<0.50 N1310.50 ND<0.50 1 250 -- --- -- --- --- --- MW-11 08/25/00 8.09 25 11,87 -3.78 ND147 120 ND<0.50 NDm.50 ND<0.50 0.99 350 ND<10 1,113<10 1,113110 1 --- I --- I --- MW-11 0925/00(m) 809 25 11.98 -3.89 --- --- -'- --- -- -- -- - --' -- 28 1 --- I -- MW-II 11/15/00 8.09 25 1160 -351 ND<47 190 2 9 3 12 160 - --- -- --- --- --- MW-11 01/17/01 8.09 25 11.67 -3.58 ND<50 210 ND<0.50 ND<C.50 ND<0.50 1,113<0.50 339 --- --- - -- --- --- MW-II 06/05/01 8.09 25 11.42 -3.33 -'- -- -- -- -- --- -- --� --- --- N1W-I 1 06/15/01 8.09 25 11.54 -3.45 --- --- --- --- --- --� -- -- --- -� -- --- --- MW-11 09/04/01 8.09 25 12.07 -3.98 140 ND<50 ND<O50 ND<0.50 ND<0.50 1 450 ND<10 ND<10 ND<10 ND<1000 ND<500 N13<15000 MW-I1 12/11/01 8.09 25 11.70 -3.61 -- -- '- - --- --- M W-I 1 -"MW-II 02/21/02 8.09 25 10.57 -2.48 ND<50 ND<I00 ND<1.0 ND<I.0 ND<I.0 ND<L0 410 ND<I0 ND<I0 2 ND<10 ND<I00 ND<10 MW-II 05/22/02 9.72 25 11.25 1 -1.53 --- --- -- -- -� --- -- --- MW-II 08/21/02 9.72 25 12.03 -2.31 140 ND<1000(q) ND<10 ND<10 ND<10 ND<10 580 ND<40 ND<40 ND<40 ND<2000 ND<100 ND<I0000 MW-11 11/14/02 9.72 25 12.00 -2.28 --- --- - ""- -- --- --- MW-1 1 --MW-11 02/20/03 9.72 25 10.69 -0.97 240(r) ND<50 ND<0.8 ND<0.8 ND<0.8 ND<0.8 360 ND<08 ND<0.8 1 2 30 ND<1000 ND<l 70 MWAI 05/30/03 9.72 25 11.35 -1.63 -- MW-11 08/13/03 9.72 25 11.85 -2.13 420(r) ND<50 ND<0.50 ND<JD.50 ND<0.50 ND<0.50 110 ND<0.50 ND<0.50 1 260 ND<I000 ND<I000 MW-11 12/22/03 9.72 25 11.97 -2.25 - - -- -- - --- MW-11 02/10/04 9.72 25 10.97 -1,25 71(r) ND<50 ND<0.50 ND<0.50 ND<0.50 ND<L0 3 ND<I.0 ND<0.50 ND<0.50 310 ND<50 ND<5.0 MW-11 05/20/04 9.72 25 11.56 -1.84 -- --- -- --- -' -- --- MW-1 1 --MW-II 08/16/04 1 9.72 25 12.55 -2.83 -- --- -'- --' -'- --- ND<0.50 - --- ND<0.50 520 --- --- MW-II 11/29/04 1 9.72 25 11.94 -2.22 --" --- - --- - - - MW'-11 02/17/05 972 25 10.31 -0.59 97(r) ND<50 ND<D.50 ND<O.50 ND<0.50 I I --- --- ND<0.50 350 --- --- MW-II 05/12/05 1 9.72 25 10.24 -0.52 --- --- --- --- -- --- • Page 21 of 33 ATC Pro)ect Na 1175 7S 119 OARS