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Tabie 3 <br /> Groundwater Elevation and Analytical Data <br /> Tosca (Former BP)Station No. 11193 <br /> 3202 W. Hammer Lane, Stockton, California <br /> Well Date of P/NP Well Depth to Groundwater Groundwater TPH-G TPH-D TPH B T E X MtBE VOCs[1] DO <br /> Number Sampling Elevation Water Elevation Elevation (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ppm) <br /> (Feet) (Feet) (Feet) Change <br /> (Feet) <br /> MW-3 4/23/2001 5.15 12.07 -6.92 0.92 74 --- --- ND<0.5 5 2 13 42 --- --- <br /> (cont.) 7/27/2001 5.15 13.12 -7.97 -1.05 1,400 --- --- ND<5.0 13 8 88 1,190 --- <br /> 11/1/2001 5.15 14.20 -9.05 -1.08 1,400 --- --- ND<0.5 1 ND<0.5 4 1,750 <br /> 1/28/2002 5.15 12.77 -7.62 1.43 200 --- ND<0.5 ND<0.5 ND<0.5 ND<1.0 255 --- <br /> 4/23/2002 5.15 12.75 -7.60 0.02 400 --- ND<0.5 ND<0.5 ND<0.5 3 322 --- - <br /> 7/29/2002 P 5,15 13.20 -8.05 -0.45 190 --- . 0.524 <0.5 <0.5 <1 10,400 ND[4] <br /> 9/11/2002 P 5.15 14.38 -9.23 -1.18 1,200 --- --- ND<100 ND<100 ND<1,00 ND<100 5,400 --- <br /> 417/2003 P 5.15 13.71 -8.56 0.67 250[6] --- --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 160 --- <br /> 6/27/2003 P 5.15 14.02 -8.87 -0.31 360[6) --- --- 1.4 ND<0.5 2.2 1.7 760 --- -- <br /> MW-4 12/21/1992 5.43 21.68 -16.25 --- 110 --- --- ND<0.5 ND<0.5 ND<0.5' ND<0.5 --- --- --- <br /> 4/4/1993 5.43 18.80 -13.37 2.88 180 1 ND<0.5 ND<0.5 1 --- ND[2] --- <br /> OC41 4/4/1993 --- --- --- --- 310 --- --- <br /> 2 ND<0.5 ND<0.5 1 --- <br /> - 412611993- 5.43... : 18.55 -_13.12 - ND<50.ND<5000 <br /> 10/5/1993 5.43 19.30 13.87 -0.75 - 140 ND<50 ND<5000 ND<0.5 ND<0.5. ND<0.5 ND<0.5 ND[21..- <br /> QC-1 10/5/1993 --- --- 160 --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 <br /> 1/7/1994 5.43 19.05 -13.62 --- 100 --- --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 2,215 --- --- <br /> 4/20/1994 5.43 18.31 -12.88 0.74 74 --- ND<0.5 ND<0.5 ND<0.5 1 ND<5.0 4.1 <br /> 4/25/1994 5.43 18.28 -12.85 0.03 --- --- --- ___ --- <br /> 7/28/1994 5.43 18.71 -13.28 -0.43 66 --- ND<0.5 ND<0.5 ND<0.5 ND<0.5 --- 4.0 <br /> 12!9/1994 5.43 19.20 -13.77 -0.49 50 --- ND<0.5 ND<0.5 ND<0.5 ND<l --- 4.4 <br /> 3/3/1995 5.43 17.87 -12.44 1.33 ND<50 --- --- ND<0.50 ND<0.50 ND<0.50 ND<1.0 --- -- 4.6 <br /> 4/12/1995 5.43 16.59 -11.16 1.28 ND<50 --- --- ND<0.50 ND<0.50 ND<0.50 ND<1.0 --- 7.9 <br /> 7/20/1995 5.43 16.97 -11,54 -0.38 ND<50 --- --- ND<0.50 ND<0.50 ND<0.50 ND<1.0 4.6 <br /> 11/2/1995 5.43 17.81 -12.38 -0.84 ND<50 --- --- ND<0.5 ND<0.5 ND<0.5 ND<1.0 ND<5.0 --- 4.1 <br /> 1/16/1996 5.43 17.21 -11.78 0.60 ND<50 --- ND<0.50 ND<0.50 ND<0.50 ND<1.0 ND<5.0 --- --- <br /> 4/22/1996 5.43 15,11 -9.68 2.10 ND<50 --- ND<0.5 ND<l ND<1 ND<1 ND<10 --- --- <br /> 7/12/1996 5.43 15.42 -9.99 -0.31 ND<50 --- --- ND<0.5 ND<l ND<1 ND<l ND<10 --- 2.2 <br /> 11/14/1996 5.43 16.30 -10.87 -0.88 ND<50 --- - ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 --- 3.4 <br /> 3/11/1997 5.43 13.50 -8.07 2.80 ___ ___ _ __- <br /> 5/22/1997 5.43 14.11 -8.68 -0.61 - --- --- -_. --- --- <br /> 8/6/1997 5.43 14.97 -9.54 -0.86 --- ___ .__ _._ ___ ___ --- <br /> 9122J 1§97 <br /> __9/22/1997 5.43 15.09 -9.66 -0.12 --- --- --- --- __- ___ _-- <br /> 1/7/1998 5.43 15.28 -9.85 =0.19 ND<50 --- --- ND<0.5 ND<1.0 ND<1.0 ND<1.0 ND<10 --- 6.5 <br /> 7/1/1998 5.43 11.61 -6.18 3.67 --- --- --- .__ _._ __. ___ --- <br /> 9/1811998 5.43 13.17 -7.74 -1.66 --- --- --- --_ ___ ___ ___ __- <br /> I:IConocoPhillips\Tosco Marketing1111931Tables111193 2OMR03.xls gage 4 of 11 <br />