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Groundwater Monitoring Dal a and Analytical Results <br /> Tosco (Former BP Oil)SS#11195 <br /> 16500 South I-5 <br /> Lathrop,California <br /> V9 <br /> B T E X MTBE <br /> I;LL ID! D�'1'1r D'TW 5� GWE �'pH b T,P�G <br /> To <br /> f> ) ................. . (ft .) (► sl).. (ppb) ...:.:..(pp 7 . . <br /> MW-3 <br /> 9.79 12/21/92 11.84 8.0-23.0 -2.05 -- 1,300 6.7 3.1 9.1 310 -- <br /> 05/17/93 9.05 0.74 -- 3,600 20 9.3 470 700 -- <br /> (D) 05/17/93 -- --- -- 4,000 23 12 520 810 -- <br /> 09/15/93 10.44 -0.65 - 38,000 770 34 1,700 3,300 -- <br /> 01/12/94 11.15 -1.36 380 ND ND ND ND -- <br /> (D) 01/12/94 -- --- - 400 ND ND ND ND 1,400 <br /> 05/12/94 10.45 -0.66 - 180 0.7 ND 4.3 4.2 1,400 <br /> (D) 05/12/94 -- --- - 170 0.7 ND 3.8 3.9 270 <br /> 10/07/94 11.21 -1.42 -- 120 ND ND ND ND -- <br /> (D) 10/07/94 -- -- ND 0.7 ND ND ND -- <br /> 12/08/94 11.40 -1.61 -- 470 1.1 1.8 ND 9.0 -- <br /> (D) 12/08/94 -- -- 460 0.7 1.1 ND 5.9 - <br /> 02/21/95 9.11 0.68 -- 4,900 6.4 ND 370 400 -- <br /> 06/09/95 8.59 1.20 -- -- -- -- -- -- <br /> 08/31/95 10.46 -0.67 - 5,500 11 ND3 890 460 4,300 <br /> 11/02/95 11.05 -1.26 -- -- -- -- -- -- <br /> 02/28/96 7.66 2.13 - 1,600 3.2 ND3 270 227 1,200 <br /> (D) 02/28/96 -- -- - 1,400 2.8 ND3 240 204 1,100 <br /> 09/05/96 9.99 -0.20 -- 3,700 ND3 ND3 420 NU 2,100 <br /> 03/25/97 7.18 2.61 5,300 16 ND3 ND3 ND3 7,400 <br /> (D) 03/25/97 -- -- -- 5,400 ND3 ND3 ND3 ND3 7,200 <br /> 10/15/97 1132 1.53 -- 1,500 9.1 2.3 320 73.5 8,700 <br /> (D) 10/15/97 -- -- 1,400 8.4 1.5 250 57 7,900 <br /> 01/15/98 10.14 -0.35 - 24,000 20 ND ND3 ND 21,000 <br /> 05/07/98 7.10 2.69 -- -- -- -- -- -- -- <br /> 09/03/98 9.32 0.47 -- 81,000 NO ND3 360 100 78,000 <br /> (D) 09/03/98 -- -- 66,000 ND3 ND3 350 100 73,000 <br /> 12/23/98 9.98 -0.19 -- 62,000 4.2 ND 210 5.1 77,000 <br /> 11195.xl s/#180175 3 As of 05/11/01 <br />