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M U M M r M i M M r M M i M ism r <br /> Table 1 <br /> Groundwater Elevation and Analytical Data <br /> ARCO Service Station No. 548 <br /> 1612 W. Hammer Lane, Stockton, CA <br /> TOC Depth to Water Level Ethyl- Total <br /> Well Date XNP <br /> Elevation Water Elevation TPHg TPHd Benzene Toluene benzene Xylenes MtBE DO <br /> Number Sampled (feet msl) (feet bgs) (feet msl) (Erg/L) (,ug/L) Q4L) (/.g/L) U19/L) (pg/L) (991L) (mg/L) Comments <br /> VW-4 09/18/2003 29.69 <50 <0.50 <0.50 <0.50 <0.50 50[2] - <br /> 12/08/2003 30.76 -- <50 <0.50 <0.50 <0.50 <0.50 6.412] -- <br /> 03/11/2004 27.03 <50 -- <0.50 <0.50 <0.50 <0.50 <0.50[2] -- <br /> 06/11/2004 NP - 31.03 <50 - <0.50 <0.50 <0-50 <0.50 1.1[2] 1.6 <br /> i <br /> 08/03/2004 P 32.45 - 62 -- <0.50 <0.50 <0.50 <0.50 55[2] 1.1 <br /> 12/22/2004 P -- 31.74 -- 93 <0.50 <0.50 <0.50 <0.50 28[2] 5.1 <br /> 03/30/2005 P - 29.23 -- <50 c0.50 <0.50 <0.50 <0.50 17[2] 2.04 Water Level data <br /> collected 3/29105 <br /> 06/16/2005 P 28.67 <50 <0.50 <0.50 <0.50 <0.50 21[2] E1.23:771 1 <br /> 09/09/2405 P -- 30.85 1 <50 - <0.50 <0.50 <0.50 <0.50 16[2] 0.87 <br /> VW-51) 12/30/1998 -- -- -- - -- -- Inaccessible because of <br /> soil stockpiles <br /> 3/31/1999 -- -- 25.65 - -- No FP,Yes S,Yes O Not <br /> scheduled for sampling <br /> 6/28/1999 - 26.74 - - -- -- -- No FP,No S,No O Not <br /> scheduled for sampling <br /> 9/10/1999 - 29.00 -- -- - - No FP,No S,No O Not <br /> scheduled for sampling <br /> 12/13/1999 28.20 -- - -- -- -- - No FP,No S,No O Not <br /> scheduled for sampling <br /> 3/28/2000 24,97 - -- - - No FP, No S,No O Not <br /> scheduled for sampling <br /> 6/26/2000 29.81 -- -- - No FP, No S,No O Not <br /> scheduled for sampling <br /> 9/28/2000 -- 28.31 -- -- -- - -- -- - No FP, No S,No O Not <br /> scheduled for sampling <br /> 12/18/2000 - - - -- - - -- - Yes FP,Yes S,Yes O <br /> Not scheduled for <br /> sampling <br /> 3/14/2001 25.00 -- Yes FP Not scheduled for <br /> sampling <br /> 6/19/2001 24.95 - -- No FP,No S,Yes O Not <br /> scheduled for sampling <br /> 9/11/2001 -- 28.00 - -- -- - No FP, No S,Yes O Not <br /> scheduled for sampling <br /> 12113/2001 NP 28.42 54,000 840 2,300 1,100 17,000 67[2] No FP, No S,No O <br /> 3/12/2002 NPI 25.65 - 1,400(3] - c5.4 8 <5.0 96 <2.5[2][5] - No FP, No S,No O <br /> Report Date.November 17,2005 Page 14 of 17 <br />