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Ta(e 3 C <br /> Groundwater Elevation and Analytical Data <br /> Tosco (Former 8P) Station No. 11193 ` <br /> 3202 W. Hammer Lane, Stockton, Califomia <br /> Well Date of P/NP Well Depth to Groundwater Groundwater TPH-G TPH-D TPH B T E X ME VOCs[1] DQ <br /> Number Sampling Elevation W ater Elevation Elevation (ug/L) (ug1L) (ug/L) (ug/L) (ug/L) (uglL) (ug/L) (ug/L) (ug1L) (ppm) <br /> (Feet) (Feet) (Feet) Change <br /> (Feet) <br /> MW-1 12/21/1992 3.97 20.40 -16.43 --- 2,200 56 15 ND<0.5 9 --- --- <br /> 4/4/1993 3,97 15.51 -11.54 4.89 160 --- --- 9 ND<0.5 ND<0.5 1 --- <br /> 4/26/1993 3.97 17.25 -13.28 -1.74 --- --- --- --- ___ ___ <br /> --- 460 --- --- <br /> 10/5/1993 3.97 18.00 -14.03 -0.75 6,000 --- --- 450 41 17 18 350 --_ <br /> 1/7/1994 3.97 17.75 -13.78 0.25 6,600 --- --- 410 200 45 460 2,768 <br /> QC-1 1/7/1994 --- --- --- -- 8,700 --- --- 460 240 57 600 2,800 --- <br /> 4/20/1994 3.97 16.98 -13.01 63 --- --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 120 --- 4.0 <br /> QC-1 4/20/1994 --- --- --- ND<50 --- --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 200 <br /> 4/25/1994 3.97 16.97 -13.00 -- --- --- --- ___ ___ --_ <br /> 7/28/1994 3.97 17.41 -13.44 -0.44 430 --- --- 4 1 2 7 --- --- 3.9 <br /> 12/9/1994 3.97 17.89 -13.92 -0.48 2,200 --- --- 36 7 4 2 --- --- 4.1 <br /> 3/3/1995 3.97 16.55 -12.58 1.34 1,400 --- --- ND<2.5 ND<2,5 ND<2.5 ND<5.0 --- --- 5.1 <br /> QC-1 3/3/1995 --- --- -- 1,400 --- --- ND<2.5 ND<2.5 ND<2.5 ND<5.0 --- <br /> 4/12/1995 3.97 15,27 -11.30 -- 4,700 --- --- 310 ND<5.0 79 450 --- --- 7,8 <br /> 7/20/1995 3.97 15.57 -11.60 -0.30 180 47 1 4 4 --- --- 6.8 <br /> 11/2/1995 3.97 16.45 -12.48 -0.88 1,400 --- 330 57 8 85 3,100 --- 4.3 <br /> 1/16/1996 3.97 15.86 -11.89 0,59 1,400 --- --- 110 ND<5.0 ND<5.0 5 3,900 --- --- <br /> 4/22/1996 3.97 13.75 -9.78 2.11 ND<50 --- --- ND<0.5 ND<1 ND<i ND<1 27 --- --- <br /> 7/12/1996 3.97 14.06 -10,09 -0.31 1,100 --- --- 70 ND<10 ND<10 ND<10 7,700 --- 2.4 <br /> 11/14/1996 3.97 14.96 -10.99 -0.90 40,000 --- --- 350 ND<25 ND<25 ND<25 88,000 --- 3.3 <br /> 3/11/1997 3.97 12.01 -8.04 2.95 ND<50 --- --- ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 --- 4.3 <br /> QC-1 3/11/1997 --- --- --- -- ND<50 --- --- ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 ... --- <br /> 5122J 1997 <br /> 5/22!1997 3.97 12.64 -8.67 -- 60 --- --- ND<0.5 ND<1.0 ND<1.0 ND<1.0 17 3,7 <br /> 8/6/1997 3.97 13.80 -9,83 -1.16 --- --- --- --- --- --- --- 6.2 <br /> 9/2211997 3.97 13.86 -9,89 -0.06 ND<50 --- --- ND<0.5 ND<1.0 ND<1.0 ND<1,0 ND<10 --- 6,0 <br /> 1/7/1998 3.97 13.57 -9.60 0.29 ND<50 --- --- ND<0.5 ND<1.0 ND<1.0 ND<1.0 14 --- 5.7 <br /> 7/1/1998 3.97 9.86 -5.89 3.71 2,600 ND<0.5 ND<1.0 ND<1.0 ND<1.0 7,100 --- 5.5 <br /> 9/18/1998 3.97 11.50 -7.53 -1.64 3,000 --- ND<0.5 ND<1.0 ND<1.0 ND<1.0 3,500 --- 6,3 <br /> 1/19/1999 3.97 --- --- --- --- _-_ ___ ___ _-_ <br /> --------------------------------------------------------Abandoned--------------------- <br /> MW-2 12/21/1992 4.82 21.26 -16.44 --- 1,500 --- --- 120 10 1 24 --- ___ --- <br /> 4/4/1993 4.82 18.45 -13.63 2.81 2,600 --- --- 460 13 77 81 --- <br /> 4/26/1993 4.82 18.11 -13.29 0.34 --- --- ___ --_ <br /> 10/5/1993 4.82 18.85 -14.03 -0.74 1,500 --- --- 3,200 120 540 710 --- ___ -__ <br /> I:IConocoPhi[lipslTosco Marketing1111931Tables111193 20MR03.xls Page 1 of 11 <br /> t <br />